1544:
1659:(1) mating traits are identified in the focal species; (2) mating traits are affected by a species interaction, such that selection on mating traits is likely; (3) species interactions differ among populations (present vs. absent, or different species interactions affecting mating traits in each population); (4) mating traits (signal and/or preference) differ among populations due to differences in species interactions; (5) speciation requires showing that mating trait divergence results in complete or near complete sexual isolation among populations. Results will be most informative in a well-resolved biogeographic setting where the relationship and history among populations is known.
1683:
915:
1377:
40:
1496:
1562:, and strength of both prezygotic and postzygotic isolation; finding that prezygotic isolation was significantly stronger in sympatric pairs, correlating with the ages of the species. Additionally, the strength of post-zygotic isolation was not different between sympatric and allopatric pairs. This finding supports the predictions of speciation by reinforcement and correlates well with a later study that found 33 studies expressing patterns of strong prezygotic isolation in
814:
80:
6042:
4719:
635:
6052:
4743:
1716:), selection against the low-fitness hybrids favors assortive mating, increasing mate discrimination rapidly. Additionally, when there is a low cost to female mate preferences, changes in male phenotypes can result, expressing a pattern identical to that of reproductive character displacement. Post-zygotic isolation is not needed, initiated simply by the fact that unfit hybrids cannot get mates.
622:
4755:
4731:
1445:(a hybrid unable to mature into a fit adult) and sterility (the inability to produce offspring entirely) prohibit gene flow between populations. Selection against the hybrids can even be driven by any failure to obtain a mate, as it is effectively indistinguishable from sterility—each circumstance results in no offspring.
1929:
In addition, specific alleles that have the selective advantage within the overlapped populations are only useful within that population. However, if they are selectively advantageous, gene flow should allow the alleles to spread throughout both populations. To prevent this, the alleles would have to
1686:
Phylogenetic signature to distinguish sympatric speciation from reinforcement. Stronger prezygotic isolation (indicated by the red boxes and associated arrows) should be detected between Z and Y and between Z and X if species Z sympatrically speciated (green) from the common ancestor of species Y and
1557:
Assortive mating is expected to increase among sympatric populations experiencing reinforcement. This fact allows for the direct comparison of the strength of prezygotic isolation in sympatry and allopatry between different experiments and studies. Coyne and Orr surveyed 171 species pairs, collecting
1380:
A parameter space representing the conditions in which speciation by reinforcement can occur. Here, three outcomes can arise: 1) extinction of one of the initial populations; 2) the initial populations can hybridize; 3) the initial populations can speciate. The outcomes are determined by both initial
1372:
The structure and migration patterns of a population can affect the process of speciation by reinforcement. It has been shown to occur under an island model, harboring conditions with infrequent migrations occurring in one direction, and in symmetric migration models where species migrate evenly back
954:
in nature is sexual isolation: traits in organisms involving mating. This pattern has led to the idea that, because selection acts so strongly on mating traits, it may be involved in the process of speciation. This process of speciation influenced by natural selection is reinforcement, and can happen
1964:
causes the loss of the unfit allele. This effect would result in the extinction of one of the populations. This objection is overcome by when both populations are not subject to the same ecological conditions. Though, it is still possible for extinction of one population to occur, and has been shown
1724:
A number of objections were put forth, mainly during the 1980s, arguing that reinforcement is implausible. Most rely on theoretical work which suggested that the antagonism between the forces of natural selection and gene flow were the largest barriers to its feasibility. These objections have since
1599:
Various alternative explanations for the patterns observed in nature have been proposed. There is no single, overarching signature of reinforcement; however, there are two proposed possibilities: that of sex asymmetry (where females in sympatric populations are forced to become choosy in the face of
1424:
Speciation by reinforcement relies directly on selection to favor an increase in prezygotic isolation, and the nature of selection's role in reinforcement has been widely discussed, with models applying varying approaches. Selection acting on hybrids can occur in several different ways. All hybrids
905:
of traits for mate recognition (specifically between sympatric populations). Reinforcement, under his definition, included prezygotic divergence and complete post-zygotic isolation. Servedio and Noor include any detected increase in prezygotic isolation as reinforcement, as long as it is a response
730:
the two populations mate, producing hybrids with lower fitness. Natural selection results from the hybrid's inability to produce viable offspring; thus members of one species who do not mate with members of the other have greater reproductive success. This favors the evolution of greater prezygotic
1695:
itself may result in the observed patterns of reinforcement. One method of distinguishing between the two is to construct a phylogenetic history of the species, as the strength of prezygotic isolation between a group of related species should differ according to how they speciated in the past. Two
1668:
It is possible that the pattern of enhanced isolation could simply be a temporary outcome of secondary contact where two allopatric species already have a varying range of prezygotic isolation: with some exhibiting more than others. Those that have weaker prezygotic isolation will eventually fuse,
1590:
to select for a trait (regardless of its function in sexual reproduction). Many experiments using the destroy-the-hybrids technique are generally cited as supportive of reinforcement; however, some researchers such as Coyne and Orr and
William R. Rice and Ellen E. Hostert contend that they do not
1019:
can result in the same patterns. Further, gene flow can diminish the isolation found in sympatric populations. Two important factors in the outcome of the process rely on: 1) the specific mechanisms that causes prezygotic isolation, and 2) the number of alleles altered by mutations affecting mate
888:
frogs within a secondary contact hybrid zone. The term secondary contact has also been used to describe reinforcement in the context of an allopatrically separated population experiencing contact after the loss of a geographic barrier. The
Wallace effect is similar to reinforcement, but is rarely
1525:
Reinforcement can be shown to be occurring (or to have occurred in the past) by measuring the strength of prezygotic isolation in a sympatric population in comparison to an allopatric population of the same species. Comparative studies of this allow for determining large-scale patterns in nature
1733:
Concerns about hybrid fitness playing a role in reinforcement has led to objections based on the relationship between selection and recombination. That is, if gene flow is not zero (if hybrids aren't completely unfit), selection cannot drive the fixation of alleles for prezygotic isolation. For
1673:
find high levels of prezygotic isolation in sympatry but not in allopatry. The fusion hypothesis predicts that strong isolation should be found in both allopatry and sympatry. This fusion process is thought to occur in nature, but does not fully explain the patterns found with reinforcement.
1534:
is seen as a result of reinforcement, so many of the cases in nature express this pattern in sympatry. Reinforcement's ubiquity is unknown, but the patterns of reproductive character displacement are found across numerous taxa and is considered to be a common occurrence in nature. Studies of
857:
Dobzhansky's idea gained significant support; he suggested that it illustrated the final step in speciation, for example after an allopatric population comes into secondary contact. In the 1980s, many evolutionary biologists began to doubt the plausibility of the idea, based not on empirical
1947:
occasionally hybridize with one another, resulting in fertile female offspring and sterile male offspring. This natural setting was reproduced in the laboratory, directly modeling reinforcement: the removal of some hybrids and the allowance of varying levels of gene flow. The results of the
861:
By the early 1990s, reinforcement saw a revival in popularity among evolutionary biologists; due primarily from a sudden increase in data—empirical evidence from studies in labs and largely by examples found in nature. Further, computer simulations of the genetics and migration patterns of
1031:, selection against hybrids is required; therefore reinforcement can play a role, given the evolution of some form of fitness trade-offs. In sympatry, patterns of strong mating discrimination are often observed—being attributed to reinforcement. Reinforcement is thought to be the agent of
854:, and in 1965 and 1970 the first computer simulations were run to test for its plausibility. Later population genetic and quantitative genetic studies were conducted showing that completely unfit hybrids lead unequivocally to an increase in prezygotic isolation.
1535:
reinforcement in nature often prove difficult, as alternative explanations for the detected patterns can be asserted. Nevertheless, empirical evidence exists for reinforcement occurring across various taxa and its role in precipitating speciation is conclusive.
1669:
losing their distinctiveness. This hypothesis does not explain the fact that individual species in allopatry, experiencing consistent gene flow, would not differ in levels of gene flow upon secondary contact. Furthermore, patterns detected in
1930:
be deleterious or neutral. This is not without problems, as gene flow from the presumably large allopatric regions could overwhelm the area when two populations overlap. For reinforcement to work, gene flow must be present, but very limited.
1503:, divergence is exhibited by changes in mating traits. These patterns of reproductive character displacement detected in species populations that exist in zones of overlap indicate that the process of speciation by reinforcement has occurred.
1623:
can also play a role in the observed patterns—called ecological character displacement. Natural selection may drive the reduction of an overlap of niches between species instead of acting to reduce hybridization Though one experiment in
858:
evidence, but largely on the growth of theory that deemed it an unlikely mechanism of reproductive isolation. A number of theoretical objections arose at the time and are addressed in the
Arguments against reinforcement section below.
743:
as to the plausibility of its occurrence. Since the 1990s, data from theory, experiments, and nature have overcome many of the past objections, rendering reinforcement widely accepted, though its prevalence in nature remains unknown.
735:). Reinforcement is one of the few cases in which selection can favor an increase in prezygotic isolation, influencing the process of speciation directly. This aspect has been particularly appealing among evolutionary biologists.
1433:
or indirectly. In direct selection, the frequency of the selected allele is favored to the extreme. In cases where an allele is indirectly selected, its frequency increases due to a different linked allele experiencing selection
983:, regardless if individual preferences have no effect on survival and reproduction. Gene flow acts as the primary opposing force against reinforcement, as the exchange of genes between individuals leading to hybrids cause the
738:
The support for reinforcement has fluctuated since its inception, and terminological confusion and differences in usage over history have led to multiple meanings and complications. Various objections have been raised by
906:
to selection against mating between two different species. Coyne and Orr contend that, "true reinforcement is restricted to cases in which isolation is enhanced between taxa that can still exchange genes".
1586:
fruit flies. In general, two types of experiments have been conducted: using artificial selection to mimic natural selection that eliminates the hybrids (often called "destroy-the-hybrids"), and using
1356:, as it can reduce the association between the alleles that involve fitness and the assortive mating alleles that do not. Genetic models often differ in terms of the number of traits associated with
874:) using highly complex computer simulations; all of which came to similar conclusions: that reinforcement is plausible under several conditions, and in many cases, is easier than previously thought.
1933:
Recent studies suggest reinforcement can occur under a wider range of conditions than previously thought and that the effect of gene flow can be overcome by selection. For example, the two species
1700:
if two recently speciated taxa do not show signs of post-zygotic isolation of both sympatric and allopatric populations (in sympatric speciation, post-zygotic isolation is not a prerequisite);
924:
barrier separates a species population into two but they come into contact before reproductive isolation is sufficient to result in speciation. The two populations fuse back into one species
2233:
Daniel OrtĂz-Barrientos, Alicia Grealy, and Patrik Nosil (2009), "The
Genetics and Ecology of Reinforcement: Implications for the Evolution of Prezygotic Isolation in Sympatry and Beyond",
5774:
351:
1956:
In conjunction with the fusion hypothesis, reinforcement can be thought of as a race against both fusion and extinction. The production of unfit hybrids is effectively the same as a
1687:
X. If Z, Y, and X speciated allopatrically (blue), with Z and Y experiencing secondary contact, strong prezygotic isolation should be found between Z and Y, but not between Z and X.
1453:
Some initial divergence in mate preference must be present for reinforcement to occur. Any traits that promote isolation may be subjected to reinforcement such as mating signals (
771:, and plants. The secondary contact of originally separated incipient species (the initial stage of speciation) is increasing due to human activities such as the introduction of
1631:
Species interactions can also result in reproductive character displacement (in both mate preference or mating signal). Examples include predation and competition pressures,
893:
demarcated incomplete post-zygotic isolation from complete isolation, referring to incomplete isolation as reinforcement and completely isolated populations as experiencing
1349:. A restriction of migration between populations can further increase the chance of reinforcement, as it decreases the probability of the differing genotypes to exchange.
1612:. Coyne and Orr extend the sex asymmetry signature and contend that, regardless of the change seen in females and males in sympatry, isolation is driven more by females.
3547:
Maria R. Servedio (2001), "Beyond reinforcement: The evolution of premating isolation by direct selection on preferences and postmating, prezygotic incompatibilities",
3403:
Michael L. Cain, Viggo
Andreasen, and Daniel J. Howard (1999), "Reinforcing selection is effective under a relatively broad set of conditions in a mosaic hybrid zone",
1347:
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1295:
1269:
4379:
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2026:
1543:
1948:
experiment strongly suggested that reinforcement works under a variety of conditions, with the evolution of sexual isolation arising in 5–10 fruit fly generations.
1027:, reinforcement is unlikely to complete speciation in the case that the peripherally isolated population comes into secondary contact with the main population. In
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1898:
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1566:. A survey of the rates of speciation in fish and their associated hybrid zones found similar patterns in sympatry, supporting the occurrence of reinforcement.
1243:
1223:
1203:
1183:
1163:
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4823:
274:
585:
1007:
After speciation by reinforcement occurs, changes after complete reproductive isolation (and further isolation thereafter) are a form of reproductive
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5482:
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393:
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99:
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580:
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527:
2577:
J. A. Sved (1981), "A Two-Sex
Polygenic Model for the Evolution of Premating Isolation. I. Deterministic Theory for Natural Populations",
866:
like reinforcement". The most recent theoretical work on speciation has come from several studies (notably from Liou and Price, Kelly and
3749:
and N. R. Lovejoy. (1998). The relative rate of sympatric and allopatric speciation in fishes. In D. J. Howard and S. H. Berlocher (eds)
5873:
4793:
1245:, assortive mating is promoted, resulting in reinforcement. Both selection and assortive mating are necessary, that is, that matings of
1012:
894:
5535:
5195:
2800:
2659:
659:
388:
219:
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Confusion exists around the meaning of the term reinforcement. It was first used to describe the observed mating call differences in
2498:
2011:
1609:
1043:
The underlying genetics of reinforcement can be understood by an ideal model of two haploid populations experiencing an increase in
1400:. It is possible that, when two species come into secondary contact, one population can become extinct—primarily due to low hybrid
5607:
5205:
2847:
Conrad J. Hoskin and Megan Higgie (2010), "Speciation via species interactions: the divergence of mating traits within species",
121:
4345:
Hamish G. Spencer, Brian H. McArdle, and David M. Lambert (1986), "A Theoretical
Investigation of Speciation by Reinforcement",
3635:
Conrad J. Hoskin, Megan Higgie, Keith R. McDonald, and Craig Moritz (2005), "Reinforcement drives rapid allopatric speciation",
1425:
produced may be equality low-fitness, conferring a broad disadvantage. In other cases, selection may favor multiple and varying
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5842:
5766:
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4276:
1604:: any of the alleles experiencing selection for isolation should be dominate. Though this signature does not fully account for
378:
346:
5169:
2758:
Howard, Daniel J. (1993). "Reinforcement: origin, dynamics and fate of an evolutionary hypothesis". In
Harrison, R. G. (ed.).
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if a cline exists between two species over a range of traits (sympatric speciation does not require a cline to exist at all).
1605:
1580:
Laboratory studies that explicitly test for reinforcement are limited, with many of the experiments having been conducted on
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383:
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840:
was the first to provide a thorough description of the process in 1937, though the term itself was not coined until 1955 by
6045:
5376:
652:
639:
5985:
5487:
3763:
William R. Rice and Ellen E. Hostert (1993), "Laboratory
Experiments on Speciation: What Have We Learned in 40 Years?",
570:
6055:
5649:
4747:
3591:
J. K. Kelly and
Mohamed A. F. Noor (1996), "Speciation by reinforcement: a model derived from studies of Drosophila",
626:
4687:
2551:
Stanley Sawyer and Daniel Hartl (1981), "On the evolution of behavioral reproductive isolation: The Wallace effect",
4069:
Mark Kirkpatrick and Virginie Ravigné (2002), "Speciation by Natural and Sexual Selection: Models and Experiments",
1682:
4925:
1185:(the assortive mating alleles) have an effect on mating pattern but is not under direct selection. If selection at
914:
126:
1479:), or even egg receptivity. Individuals may also discriminate against mates that differ in various traits such as
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5342:
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467:
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104:
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genotypes will experience recombination in the face of gene flow. Somehow, the populations must be maintained.
759:
exists, both in the laboratory and in nature. Documented examples are found in a wide range of organisms: both
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477:
452:
407:
373:
367:
356:
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2475:
M. J. Littlejohn (1981). Reproductive isolation: A critical review. In W. R. Atchley and D. S. Woodruff (eds)
3804:
L. Partridge and G. A. Parker. (1999). Sexual conflict and speciation. In A. E. Magurran and R. M. May (eds)
1015:; characteristics of a population diverge in sympatry but not allopatry. One difficulty in detection is that
990:
Butlin laid out four primary criteria for reinforcement to be detected in natural or laboratory populations:
5973:
5903:
5812:
5540:
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5190:
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702:) between two populations of species. This occurs as a result of selection acting against the production of
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502:
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442:
403:
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1987:
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747:
Numerous models have been developed to understand its operation in nature, most relying on several facets:
39:
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5337:
5332:
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4695:
4682:
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3260:
Joseph Felsenstein (1981), "Skepticism Towards Santa Rosalia, or Why are There so Few Kinds of Animals?",
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1435:
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829:
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507:
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Claudia Bank, Joachim Hermission, and Mark Kirkpatrick (2012), "Can reinforcement complete speciation?",
2043:
Jeremy L. Marshall, Michael L. Arnold, and Daniel J. Howard (2002), "Reinforcement: the road not taken",
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Mark Kirkpatrick and Maria R. Servedio (1999), "The reinforcement of mating preferences on an island",
871:
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Troy Day (2000), "Sexual Selection and the Evolution of Costly Female Preferences: Spatial Effects",
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Reinforcement has had a complex history in that its popularity among scholars has changed over time.
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1986:
Hannes Schuler, Glen R. Hood, Scott P. Egan, and Jeffrey L. Feder (2016), Meyers, Robert A (ed.),
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1965:
in population simulations. For reinforcement to occur, prezygotic isolation must happen quickly.
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Other selection pressures leading to divergence of the mate-recognition system have not occurred.
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590:
522:
306:
234:
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such as in the case of a mosaic hybrid zone. Natural selection can act on specific alleles both
3013:
Lily W. Liou and Trevor D. Price (1994), "Speciation by reinforcement of premating isolation",
1553:. Gradients indicate the predictions of reinforcement for allopatric and sympatric populations.
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2020:
2007:
1939:
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contend that the theory of reinforcement went through three phases of historical development:
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3514:
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3412:
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3269:
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Maria R. Servedio and Mark Kirkpatrick (1997), "The effects of gene flow on reinforcement",
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1999:
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939:
898:
772:
703:
326:
52:
4292:
A. A. Harper and D. M. Lambert (1983), "The population genetics of reinforcing selection",
1441:
The condition of the hybrids under selection can play a role in post-zygotic isolation, as
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in 1889. His hypothesis differed markedly from the modern conception in that it focused on
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4691:
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other ways to determine if reinforcement occurs (as opposed to sympatric speciation) are:
1591:
truly model reinforcement, as gene flow is completely restricted between two populations.
833:
279:
269:
131:
1903:
1877:
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Population densities are an important factor in reinforcement, often in conjunction with
4205:
J. A. Moore. (1957). An embryologist's view of the species concept. In Ernst Mayr (eds)
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3922:
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1957:
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1777:
1757:
1737:
1228:
1208:
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264:
3879:
Alan R. Templeton (1981), "Mechanisms of Speciation – A Population Genetic Approach",
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2318:
2056:
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Gene flow between two taxa exists or can be established to have existed at some point.
897:. Daniel J. Howard considered reproductive character displacement to represent either
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1643:. Because these and other factors can result in reproductive character displacement,
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plausibility based on empirical studies and biologically complex and realistic models
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184:
4366:
4222:
Daniel R. Matute (2010), "Reinforcement Can Overcome Gene Flow during Speciation in
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3863:
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3734:
3578:
3434:
3383:
3194:
3129:
3044:
2884:
2538:
2399:
1517:
comes from observations in nature, comparative studies, and laboratory experiments.
5995:
5943:
5888:
5721:
5716:
5457:
5068:
4537:
4486:
4481:
4313:
4148:
4053:
4004:
3968:
3946:
3672:
2448:
2365:
2262:
2199:
2166:
929:
890:
884:
867:
796:
780:
764:
532:
517:
301:
296:
214:
3604:
975:. Selection acts as the main driver of reinforcement as it selects against hybrid
4111:
N. H. Barton and G. M. Hewitt (1989), "Adaptation, speciation and hybrid zones",
3225:
2965:
2308:
6022:
5893:
5674:
5622:
5157:
4987:
4893:
4851:
3964:
3461:
Mark Kirkpatrick (2000), "Reinforcement and divergence under assortive mating",
3352:
Maria R. Servedio (2000), "Reinforcement and the genetics of nonrandom mating",
3312:
2590:
2162:
1651:
give five criteria for reinforcement to be distinguished between ecological and
1636:
1625:
1527:
1480:
1386:
1000:
Patterns of mating are modified, limiting the production of low fitness hybrids.
964:
792:
542:
259:
209:
4326:
H. E. H. Paterson (1978), "More evidence against speciation by reinforcement",
4020:
Mohamed A. F. Noor (1997), "How often does sympatry affect sexual isolation in
3077:
1547:
Prezygotic isolation in allopatric (red) and sympatric (blue) species pairs of
731:
isolation (differences in behavior or biology that inhibit formation of hybrid
5883:
5784:
5706:
5693:
5582:
5442:
5127:
5014:
4992:
4945:
4940:
4888:
4856:
4622:
4561:
4476:
4419:
4239:
3746:
1582:
1549:
1404:
accompanied by high population growth rates. Extinction is less likely if the
1397:
824:
Sometimes called the Wallace effect, reinforcement was originally proposed by
760:
683:
316:
239:
194:
174:
88:
44:
17:
820:
proposed in 1889 that isolation could be strengthened by a form of selection.
6017:
5868:
5612:
5432:
5095:
4843:
1426:
1413:
972:
575:
189:
109:
4257:
4182:
4090:
4045:
3996:
3855:
3784:
3726:
3664:
3570:
3534:
3492:
3474:
3426:
3375:
3336:
3289:
3244:
3186:
3121:
3085:
3036:
2928:
2910:
2876:
2608:
2440:
2391:
2382:
2327:
2294:
Maria R. Servedio (2004), "The What and Why of Research on Reinforcement",
2254:
4140:
3938:
3622:
2983:
848:
laid out the first genetic description of the process of reinforcement in
621:
5920:
5268:
5122:
3820:"Reinforcement of stickleback mate preferences: Sympatry breeds contempt"
1652:
1632:
1361:
976:
748:
565:
164:
3656:
1011:. A common signature of reinforcement's occurrence in nature is that of
5562:
5462:
5310:
5305:
5019:
4771:
4626:
4461:
4305:
3526:
3281:
2897:
Mark Kirkpatrick (2001), "Reinforcement during ecological speciation",
2003:
1834:
has the prezygotic allele a and the high fitness, post-zygotic alleles
1640:
1620:
776:
3905:
Mohamed A. F. Noor (1995), "Speciation driven by natural-selection in
4132:
3930:
3846:
1096:
1032:
752:
732:
3699:
Jerry A. Coyne and H. Allen Orr (1997), ""Patterns of Speciation in
3518:
3273:
2513:
Blair, W. Frank (1955), "Mating call and stage of speciation in the
2202:(2003), "The Role of Reinforcement in Speciation: Theory and Data",
1981:
1979:
1977:
1389:(patchy distributions of parental forms and subpopulations), and in
4358:
4209:, American Association for the Advancement of Science, pp. 325–338.
4082:
4037:
2783:
John A. Hvala and Troy E. Wood (2012). "Speciation: Introduction".
2432:
5518:
5327:
5226:
1681:
1542:
1494:
1375:
913:
812:
768:
38:
997:
There is divergence of mating-associated traits between two taxa.
938:
results in speciation of the two populations, with an additional
5477:
3207:
Daniel R. Matute (2010), "Reinforcement of Gametic Isolation in
4775:
4392:
3505:
Neil Sanderson (1989), "Can gene flow prevent reinforcement?",
1628:
fish that explicitly tested this hypotheses found no evidence.
4388:
928:
3. Two separated populations stay genetically distinct while
2368:(1999), "Reinforcement and other consequences of sympatry",
4175:
10.1554/0014-3820(2000)054[0715:SSATEO]2.3.CO;2
1499:
Two allopatric populations come into secondary contact. In
1385:
Reinforcement can also occur in single populations, mosaic
1360:; with some relying on one locus per trait and others on
1352:
An alternative model exists to address the antagonism of
1416:
individuals can still survive long enough to reproduce.
1145:
alleles (in the second subpopulation). The third locus
963:). It necessitates two forces of evolution that act on
751:, population structures, influences of selection, and
718:. The modern concept of reinforcement originates from
1906:
1880:
1860:
1840:
1820:
1800:
1780:
1760:
1740:
1329:
1303:
1277:
1251:
1231:
1211:
1191:
1171:
1151:
1128:
1105:
1079:
1056:
3959:
3957:
3955:
3881:
Annual Review of Ecology, Evolution, and Systematics
3306:
3304:
3302:
3300:
3298:
2204:
Annual Review of Ecology, Evolution, and Systematics
5936:
5861:
5765:
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5407:
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4454:
2842:
2840:
2838:
2836:
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2193:
2191:
2189:
1725:been largely contradicted by evidence from nature.
806:
implausibility based on hybrids having some fitness
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3345:
1381:divergence and level of fitness of the hybrids.
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2947:
2945:
2943:
2941:
2939:
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2289:
2287:
2285:
1992:Reviews in Cell Biology and Molecular Medicine
1487:. Many of these examples are described below.
4787:
4404:
4217:
4215:
2753:
2751:
2749:
2747:
2745:
2711:
2709:
2412:Roger K. Butlin and Carole M. Smadja (2018),
2157:
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8:
4378:: CS1 maint: multiple names: authors list (
4201:
4199:
3684:: CS1 maint: multiple names: authors list (
3446:: CS1 maint: multiple names: authors list (
3141:: CS1 maint: multiple names: authors list (
2274:: CS1 maint: multiple names: authors list (
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2068:: CS1 maint: multiple names: authors list (
2025:: CS1 maint: multiple names: authors list (
1099:combinations while favoring combinations of
783:and may become more relevant in the future.
27:Process of increasing reproductive isolation
3398:
3396:
3394:
3392:
3062:"What do we need to know about speciation?"
3060:The Marie Curie SPECIATION Network (2012),
3055:
3053:
2762:. Oxford University Press. pp. 46–69.
2642:Glenn-Peter Sætre (2012). "Reinforcement".
2637:
2491:Natural Selection: Methods and Applications
2360:
2358:
2356:
1774:and the high fitness, post-zygotic alleles
4794:
4780:
4772:
4411:
4397:
4389:
2635:
2633:
2631:
2629:
2627:
2625:
2623:
2621:
2619:
2617:
2479:, Cambridge University Press, Pp. 298–334.
2354:
2352:
2350:
2348:
2346:
2344:
2342:
2340:
2338:
2336:
2235:Annals of the New York Academy of Sciences
1530:can also be used to detect reinforcement.
667:
653:
62:
59:of two separated populations of a species.
4278:"Reinforcement" and the origin of species
4247:
3845:
3835:
3716:
3612:
3560:
3482:
3416:
3365:
3234:
3224:
3111:
3026:
2973:
2918:
2760:Hybrid Zones and the Evolutionary Process
2598:
2414:"Coupling, Reinforcement, and Speciation"
2381:
2317:
2307:
1905:
1879:
1859:
1839:
1819:
1799:
1779:
1759:
1739:
1328:
1302:
1276:
1250:
1230:
1225:cause changes in the frequency of allele
1210:
1190:
1170:
1150:
1127:
1122:alleles (in the first subpopulation) and
1104:
1078:
1055:
851:The Genetical Theory of Natural Selection
6028:Transgenerational epigenetic inheritance
2216:10.1146/annurev.ecolsys.34.011802.132412
1526:across various taxa. Mating patterns in
1509:Evidence for speciation by reinforcement
779:. This has implications for measures of
3753:, Oxford University Press, pp. 172–185.
2720:. In Otte, D.; Endler, John A. (eds.).
2465:. Macmillan & Co. pp. 174–179.
1973:
1393:populations with narrow contact zones.
918:The four outcomes of secondary contact:
710:. The idea was originally developed by
70:
4371:
3677:
3439:
3134:
2818:
2808:
2718:"Reinforcement of premating isolation"
2677:
2667:
2267:
2173:, Sinauer Associates, pp. 1–545,
2061:
2018:
5791:Dialogues Concerning Natural Religion
3808:. Oxford University Press, pp.130–159
3751:Endless Forms: Species and Speciation
3311:Michael Turelli; Nicholas H. Barton;
942:. All three species are separated by
7:
4730:
1988:"Modes and Mechanisms of Speciation"
1754:has the prezygotic isolating allele
1616:Ecological or ethological influences
1576:Laboratory experiments of speciation
722:. He envisioned a species separated
714:and is sometimes referred to as the
4754:
3971:(1989), "Patterns of speciation in
3893:10.1146/annurev.es.12.110181.000323
2793:10.1002/9780470015902.a0001709.pub3
2652:10.1002/9780470015902.a0001754.pub3
1691:It is possible that the process of
1532:Reproductive character displacement
1013:reproductive character displacement
895:reproductive character displacement
803:plausibility based on unfit hybrids
5196:Evolutionary developmental biology
3989:10.1111/j.1558-5646.1989.tb04233.x
3837:10.1111/j.1558-5646.1998.tb05153.x
3777:10.1111/j.1558-5646.1993.tb01257.x
3718:10.1111/j.1558-5646.1997.tb02412.x
3562:10.1111/j.0014-3820.2001.tb01309.x
3463:Proceedings of the Royal Society B
3418:10.1111/j.1558-5646.1999.tb05399.x
3367:10.1111/j.0014-3820.2000.tb00003.x
3179:10.1111/j.1558-5646.1997.tb05100.x
3028:10.1111/j.1558-5646.1994.tb02187.x
2899:Proceedings of the Royal Society B
2700:Genetics and the Origin of Species
2531:10.1111/j.1558-5646.1955.tb01556.x
2515:Microhyla olivacea-M. carolinensis
959:geographic modes of speciation or
25:
3806:Evolution of Biological Diversity
3317:Trends in Ecology & Evolution
3315:(2001), "Theory and speciation",
3066:Trends in Ecology & Evolution
2045:Trends in Ecology & Evolution
1712:In a runaway process (not unlike
1610:ecological character displacement
1600:two differing males) and that of
1017:ecological character displacement
6050:
6041:
6040:
4753:
4741:
4729:
4718:
4717:
4328:South African Journal of Science
3113:10.1111/j.1558-5646.2011.01423.x
2869:10.1111/j.1461-0248.2010.01448.x
2247:10.1111/j.1749-6632.2009.04919.x
1297:are more common than matings of
634:
633:
620:
78:
5853:Extended evolutionary synthesis
5042:Gene-centered view of evolution
2724:. Sinauer Associates. pp.
2722:Speciation and its Consequences
2461:Wallace, Alfred Russel (1889).
1720:Arguments against reinforcement
1558:data on their geographic mode,
1373:and forth between populations.
775:or the modification of natural
627:Evolutionary biology portal
5981:Hologenome theory of evolution
5848:History of molecular evolution
5074:Evolutionarily stable strategy
4963:Last universal common ancestor
2553:Theoretical Population Biology
1047:. Here, selection rejects low
955:under any mode of speciation (
950:One of the strongest forms of
926:2. Speciation by reinforcement
862:populations found, "something
586:Creation–evolution controversy
340:History of evolutionary theory
1:
6082:Evolutionary biology concepts
5775:Renaissance and Enlightenment
3329:10.1016/S0169-5347(01)02177-2
2785:Encyclopedia of Life Sciences
2644:Encyclopedia of Life Sciences
2057:10.1016/S0169-5347(02)02636-8
5986:Missing heritability problem
5613:Gamete differentiation/sexes
3226:10.1371/journal.pbio.1000341
2702:. Columbia University Press.
2565:10.1016/0040-5809(81)90021-6
2309:10.1371/journal.pbio.0020420
1466:location of breeding grounds
571:Evolution as fact and theory
4748:Evolutionary biology Portal
3605:10.1093/genetics/143.3.1485
1960:; whereby a deviation from
1714:Fisherian runaway selection
932:form in the zone of contact
6103:
5618:Life cycles/nuclear phases
5170:Trivers–Willard hypothesis
3078:10.1016/j.tree.2011.09.002
2966:10.1093/genetics/151.2.865
1573:
1515:evidence for reinforcement
1506:
1449:Mating and mate preference
606:Nature-nurture controversy
31:
6036:
5116:Parent–offspring conflict
4921:Earliest known life forms
4809:
4713:
4426:
4240:10.1016/j.cub.2010.11.036
3818:Howard D. Rundle (1998),
2716:Butlin, Roger K. (1989).
2591:10.1093/genetics/97.1.197
1958:heterozygote disadvantage
1342:{\displaystyle A\times a}
1316:{\displaystyle a\times A}
1290:{\displaystyle a\times a}
1264:{\displaystyle A\times A}
757:support for reinforcement
493:Evolutionary neuroscience
468:Evolutionary epistemology
448:Evolutionary anthropology
428:Applications of evolution
5969:Cultural group selection
5833:The eclipse of Darwinism
5805:On the Origin of Species
5780:Transmutation of species
4591:Nonecological speciation
2493:, CRC Press, p. 3,
2477:Evolution and Speciation
1468:, the timing of mating (
483:Evolutionary linguistics
478:Evolutionary game theory
453:Evolutionary computation
32:Not to be confused with
5974:Dual inheritance theory
5813:History of paleontology
4347:The American Naturalist
4275:Jerry A. Coyne (2010),
4071:The American Naturalist
4026:The American Naturalist
2489:Mario A. Fares (2015),
2421:The American Naturalist
1734:example: If population
985:genotypes to homogenize
741:evolutionary biologists
596:Objections to evolution
503:Evolutionary psychology
498:Evolutionary physiology
443:Evolutionary aesthetics
422:Fields and applications
404:History of paleontology
5662:Punctuated equilibrium
4983:Non-adaptive radiation
4931:Evolutionary arms race
4696:Punctuated equilibrium
4652:Character displacement
4472:Reproductive isolation
4441:Laboratory experiments
3475:10.1098/rspb.2000.1191
2911:10.1098/rspb.2000.1427
2696:Dobzhansky, Theodosius
2383:10.1038/sj.hdy.6886320
1943:on the African island
1920:
1894:
1868:
1848:
1828:
1808:
1788:
1768:
1748:
1688:
1661:
1606:fixation probabilities
1595:Alternative hypotheses
1570:Laboratory experiments
1554:
1504:
1477:allochronic speciation
1436:linkage disequilibrium
1382:
1343:
1317:
1291:
1265:
1239:
1219:
1199:
1179:
1159:
1139:
1116:
1090:
1067:
1045:linkage disequilibrium
1009:character displacement
952:reproductive isolation
947:
870:, and Kirkpatrick and
830:post-zygotic isolation
821:
700:post-zygotic isolation
692:reproductive isolation
528:Speciation experiments
508:Experimental evolution
463:Evolutionary economics
285:Recent human evolution
143:Processes and outcomes
60:
43:Reinforcement assists
5954:Evolutionary medicine
5828:Mendelian inheritance
5536:Biological complexity
5524:Programmed cell death
5216:Phenotypic plasticity
4936:Evolutionary pressure
4926:Evidence of evolution
4824:Timeline of evolution
4577:Ecological speciation
4492:Evidence of evolution
1921:
1895:
1869:
1849:
1829:
1809:
1789:
1769:
1749:
1685:
1657:
1546:
1498:
1379:
1368:Population structures
1344:
1318:
1292:
1266:
1240:
1220:
1200:
1180:
1160:
1140:
1117:
1091:
1068:
1025:peripatric speciation
961:ecological speciation
946:reproductive barriers
917:
838:Theodosius Dobzhansky
826:Alfred Russel Wallace
818:Alfred Russel Wallace
816:
755:behaviors. Empirical
720:Theodosius Dobzhansky
712:Alfred Russel Wallace
696:pre-zygotic isolation
488:Evolutionary medicine
433:Biosocial criminology
399:History of speciation
312:Evolutionary taxonomy
275:Timeline of evolution
42:
5928:Teleology in biology
5823:Blending inheritance
5201:Genetic assimilation
5064:Artificial selection
4803:Evolutionary biology
1904:
1878:
1858:
1838:
1818:
1798:
1778:
1758:
1738:
1693:sympatric speciation
1588:disruptive selection
1406:hybrids are inviable
1327:
1301:
1275:
1249:
1229:
1209:
1189:
1169:
1149:
1126:
1103:
1077:
1054:
1029:sympatric speciation
936:Genome recombination
694:(further divided to
458:Evolutionary ecology
72:Evolutionary biology
5991:Molecular evolution
5949:Ecological genetics
5818:Transitional fossil
5608:Sexual reproduction
5448:endomembrane system
5377:pollinator-mediated
5333:dolphins and whales
5111:Parental investment
4581:Parallel speciation
4207:The Species Problem
4125:1989Natur.341..497B
3923:1995Natur.375..674N
3657:10.1038/nature04004
3649:2005Natur.437.1353H
3643:(7063): 1353–1356,
3469:(1453): 1649–1655,
2905:(1473): 1259–1263,
2861:2010EcolL..13..409H
2198:Maria R. Servedio;
1962:genetic equilibrium
1935:Drosophila santomea
1919:{\displaystyle abc}
1893:{\displaystyle ABC}
1539:Comparative studies
706:individuals of low
560:Social implications
548:Universal Darwinism
538:Island biogeography
473:Evolutionary ethics
438:Ecological genetics
384:Molecular evolution
322:Transitional fossil
150:Population genetics
66:Part of a series on
5964:Cultural evolution
5079:Fisher's principle
5008:Handicap principle
4998:Parallel evolution
4862:Adaptive radiation
4661:Speciation in taxa
4596:Assortative mating
4306:10.1007/BF00123305
2366:Mohamed A. F. Noor
2200:Mohamed A. F. Noor
2004:10.1002/3527600906
1952:Rapid requirements
1916:
1890:
1864:
1844:
1824:
1804:
1784:
1764:
1744:
1689:
1555:
1505:
1443:hybrid inviability
1383:
1339:
1313:
1287:
1261:
1235:
1215:
1195:
1175:
1155:
1138:{\displaystyle bc}
1135:
1115:{\displaystyle BC}
1112:
1089:{\displaystyle bC}
1086:
1066:{\displaystyle Bc}
1063:
948:
832:, strengthened by
822:
591:Theistic evolution
523:Selective breeding
235:Parallel evolution
200:Adaptive radiation
61:
6064:
6063:
5680:Uniformitarianism
5633:Sex-determination
5138:Sexual dimorphism
5133:Natural selection
5037:Unit of selection
5003:Signalling theory
4769:
4768:
4647:Secondary contact
4619:Hybrid speciation
4567:Natural selection
4554:Isolating factors
4234:(24): 2229–2233,
4119:(6242): 497–503,
3917:(6533): 674–675,
3555:(10): 1909–1920,
2769:978-0-19-506917-4
2735:978-0-87893-657-1
2302:(12): 2032–2035,
2180:978-0-87893-091-3
1867:{\displaystyle c}
1847:{\displaystyle b}
1827:{\displaystyle Y}
1814:; and population
1807:{\displaystyle C}
1787:{\displaystyle B}
1767:{\displaystyle A}
1747:{\displaystyle X}
1602:allelic dominance
1473:seasonal breeding
1458:courtship display
1238:{\displaystyle A}
1218:{\displaystyle C}
1198:{\displaystyle B}
1178:{\displaystyle a}
1158:{\displaystyle A}
969:natural selection
728:secondary contact
688:natural selection
677:
676:
368:Origin of Species
170:Natural selection
57:secondary contact
34:Secondary contact
16:(Redirected from
6094:
6054:
6044:
6043:
5843:Modern synthesis
5603:Multicellularity
5598:Mosaic evolution
5483:auditory ossicle
5165:Social selection
5148:Flowering plants
5143:Sexual selection
4796:
4789:
4782:
4773:
4757:
4756:
4745:
4733:
4732:
4721:
4720:
4572:Sexual selection
4501:Geographic modes
4413:
4406:
4399:
4390:
4384:
4383:
4377:
4369:
4342:
4336:
4335:
4323:
4317:
4316:
4289:
4283:
4282:
4272:
4261:
4260:
4251:
4219:
4210:
4203:
4194:
4193:
4158:
4152:
4151:
4133:10.1038/341497a0
4108:
4102:
4101:
4066:
4057:
4056:
4032:(6): 1156–1163,
4017:
4008:
4007:
3961:
3950:
3949:
3931:10.1038/375674a0
3902:
3896:
3895:
3876:
3867:
3866:
3849:
3839:
3815:
3809:
3802:
3796:
3795:
3771:(6): 1637–1653,
3760:
3754:
3744:
3738:
3737:
3720:
3696:
3690:
3689:
3683:
3675:
3632:
3626:
3625:
3616:
3599:(3): 1485–1497,
3588:
3582:
3581:
3564:
3544:
3538:
3537:
3513:(6): 1223–1235,
3502:
3496:
3495:
3486:
3458:
3452:
3451:
3445:
3437:
3420:
3411:(5): 1343–1353,
3400:
3387:
3386:
3369:
3349:
3340:
3339:
3308:
3293:
3292:
3257:
3248:
3247:
3238:
3228:
3204:
3198:
3197:
3173:(6): 1764–1772,
3162:
3147:
3146:
3140:
3132:
3115:
3095:
3089:
3088:
3057:
3048:
3047:
3030:
3021:(5): 1451–1459,
3010:
2987:
2986:
2977:
2949:
2932:
2931:
2922:
2894:
2888:
2887:
2844:
2827:
2826:
2820:
2816:
2814:
2806:
2780:
2774:
2773:
2755:
2740:
2739:
2713:
2704:
2703:
2692:
2686:
2685:
2679:
2675:
2673:
2665:
2639:
2612:
2611:
2602:
2574:
2568:
2567:
2548:
2542:
2541:
2510:
2504:
2503:
2486:
2480:
2473:
2467:
2466:
2458:
2452:
2451:
2418:
2409:
2403:
2402:
2385:
2362:
2331:
2330:
2321:
2311:
2291:
2280:
2279:
2273:
2265:
2230:
2219:
2218:
2195:
2184:
2183:
2159:
2074:
2073:
2067:
2059:
2040:
2031:
2030:
2024:
2016:
1983:
1925:
1923:
1922:
1917:
1899:
1897:
1896:
1891:
1873:
1871:
1870:
1865:
1853:
1851:
1850:
1845:
1833:
1831:
1830:
1825:
1813:
1811:
1810:
1805:
1793:
1791:
1790:
1785:
1773:
1771:
1770:
1765:
1753:
1751:
1750:
1745:
1708:Sexual selection
1645:Conrad J. Hoskin
1560:genetic distance
1348:
1346:
1345:
1340:
1322:
1320:
1319:
1314:
1296:
1294:
1293:
1288:
1270:
1268:
1267:
1262:
1244:
1242:
1241:
1236:
1224:
1222:
1221:
1216:
1204:
1202:
1201:
1196:
1184:
1182:
1181:
1176:
1164:
1162:
1161:
1156:
1144:
1142:
1141:
1136:
1121:
1119:
1118:
1113:
1095:
1093:
1092:
1087:
1072:
1070:
1069:
1064:
1023:In instances of
979:that are of low-
899:assortive mating
773:invasive species
726:, where during
682:is a process of
669:
662:
655:
642:
637:
636:
629:
625:
624:
601:Level of support
394:Current research
379:Modern synthesis
374:Before synthesis
327:Extinction event
85:Darwin's finches
82:
63:
21:
6102:
6101:
6097:
6096:
6095:
6093:
6092:
6091:
6067:
6066:
6065:
6060:
6032:
5959:Group selection
5932:
5857:
5761:
5688:
5650:Tempo and modes
5644:
5499:
5403:
5220:
5179:
5055:
5048:
5025:Species complex
4838:
4829:History of life
4805:
4800:
4770:
4765:
4709:
4692:Paleopolyploidy
4656:
4611:Hybrid concepts
4605:
4548:
4496:
4466:Species complex
4450:
4422:
4417:
4387:
4370:
4344:
4343:
4339:
4325:
4324:
4320:
4291:
4290:
4286:
4274:
4273:
4264:
4228:Current Biology
4221:
4220:
4213:
4204:
4197:
4160:
4159:
4155:
4110:
4109:
4105:
4068:
4067:
4060:
4019:
4018:
4011:
3963:
3962:
3953:
3904:
3903:
3899:
3878:
3877:
3870:
3817:
3816:
3812:
3803:
3799:
3762:
3761:
3757:
3745:
3741:
3698:
3697:
3693:
3676:
3634:
3633:
3629:
3590:
3589:
3585:
3546:
3545:
3541:
3519:10.2307/2409358
3504:
3503:
3499:
3460:
3459:
3455:
3438:
3402:
3401:
3390:
3351:
3350:
3343:
3310:
3309:
3296:
3274:10.2307/2407946
3259:
3258:
3251:
3219:(6): e1000341,
3206:
3205:
3201:
3164:
3163:
3150:
3133:
3097:
3096:
3092:
3059:
3058:
3051:
3012:
3011:
2990:
2951:
2950:
2935:
2896:
2895:
2891:
2849:Ecology Letters
2846:
2845:
2830:
2817:
2807:
2803:
2782:
2781:
2777:
2770:
2757:
2756:
2743:
2736:
2715:
2714:
2707:
2694:
2693:
2689:
2676:
2666:
2662:
2641:
2640:
2615:
2576:
2575:
2571:
2550:
2549:
2545:
2512:
2511:
2507:
2501:
2488:
2487:
2483:
2474:
2470:
2460:
2459:
2455:
2416:
2411:
2410:
2406:
2364:
2363:
2334:
2293:
2292:
2283:
2266:
2232:
2231:
2222:
2197:
2196:
2187:
2181:
2161:
2160:
2077:
2060:
2051:(12): 558–563,
2042:
2041:
2034:
2017:
2014:
1985:
1984:
1975:
1971:
1954:
1902:
1901:
1876:
1875:
1856:
1855:
1836:
1835:
1816:
1815:
1796:
1795:
1776:
1775:
1756:
1755:
1736:
1735:
1731:
1722:
1710:
1680:
1666:
1618:
1597:
1578:
1572:
1541:
1523:
1511:
1493:
1464:responses, the
1451:
1422:
1370:
1325:
1324:
1299:
1298:
1273:
1272:
1247:
1246:
1227:
1226:
1207:
1206:
1187:
1186:
1167:
1166:
1147:
1146:
1124:
1123:
1101:
1100:
1075:
1074:
1052:
1051:
1041:
933:
927:
925:
919:
912:
880:
834:group selection
789:
673:
632:
619:
618:
611:
610:
561:
553:
552:
423:
415:
414:
413:
341:
333:
332:
331:
280:Human evolution
270:History of life
254:
253:Natural history
246:
245:
244:
144:
136:
91:
37:
28:
23:
22:
15:
12:
11:
5:
6100:
6098:
6090:
6089:
6084:
6079:
6069:
6068:
6062:
6061:
6059:
6058:
6048:
6037:
6034:
6033:
6031:
6030:
6025:
6020:
6015:
6010:
6009:
6008:
5998:
5993:
5988:
5983:
5978:
5977:
5976:
5971:
5966:
5956:
5951:
5946:
5940:
5938:
5934:
5933:
5931:
5930:
5925:
5924:
5923:
5918:
5913:
5912:
5911:
5901:
5896:
5891:
5886:
5881:
5871:
5865:
5863:
5859:
5858:
5856:
5855:
5850:
5845:
5840:
5835:
5830:
5825:
5820:
5815:
5810:
5809:
5808:
5799:Charles Darwin
5796:
5795:
5794:
5782:
5777:
5771:
5769:
5763:
5762:
5760:
5759:
5754:
5749:
5744:
5739:
5737:Non-ecological
5734:
5729:
5724:
5719:
5714:
5709:
5704:
5698:
5696:
5690:
5689:
5687:
5686:
5677:
5668:
5654:
5652:
5646:
5645:
5643:
5642:
5637:
5636:
5635:
5630:
5625:
5620:
5615:
5605:
5600:
5595:
5590:
5585:
5580:
5575:
5570:
5565:
5560:
5555:
5554:
5553:
5543:
5538:
5533:
5528:
5527:
5526:
5521:
5510:
5508:
5501:
5500:
5498:
5497:
5496:
5495:
5490:
5488:nervous system
5485:
5480:
5475:
5467:
5466:
5465:
5460:
5455:
5450:
5445:
5440:
5430:
5425:
5420:
5414:
5412:
5405:
5404:
5402:
5401:
5396:
5391:
5386:
5381:
5380:
5379:
5369:
5368:
5367:
5362:
5361:
5360:
5355:
5345:
5340:
5335:
5330:
5325:
5324:
5323:
5318:
5308:
5298:
5293:
5292:
5291:
5281:
5276:
5271:
5266:
5265:
5264:
5254:
5249:
5248:
5247:
5237:
5231:
5229:
5222:
5221:
5219:
5218:
5213:
5208:
5203:
5198:
5193:
5187:
5185:
5181:
5180:
5178:
5177:
5172:
5167:
5162:
5161:
5160:
5155:
5150:
5140:
5135:
5130:
5125:
5120:
5119:
5118:
5113:
5103:
5098:
5093:
5092:
5091:
5081:
5076:
5071:
5066:
5060:
5058:
5050:
5049:
5047:
5046:
5045:
5044:
5034:
5029:
5028:
5027:
5022:
5012:
5011:
5010:
5000:
4995:
4990:
4988:Origin of life
4985:
4980:
4975:
4973:Microevolution
4970:
4968:Macroevolution
4965:
4960:
4955:
4954:
4953:
4943:
4938:
4933:
4928:
4923:
4918:
4913:
4908:
4906:Common descent
4903:
4902:
4901:
4891:
4886:
4884:Baldwin effect
4881:
4880:
4879:
4874:
4864:
4859:
4854:
4848:
4846:
4840:
4839:
4837:
4836:
4831:
4826:
4821:
4816:
4810:
4807:
4806:
4801:
4799:
4798:
4791:
4784:
4776:
4767:
4766:
4764:
4763:
4751:
4739:
4727:
4714:
4711:
4710:
4708:
4707:
4700:Macroevolution
4685:
4680:
4675:
4670:
4664:
4662:
4658:
4657:
4655:
4654:
4649:
4644:
4634:
4615:
4613:
4607:
4606:
4604:
4603:
4601:Haldane's rule
4598:
4593:
4588:
4574:
4569:
4564:
4558:
4556:
4550:
4549:
4547:
4546:
4541:
4527:
4524:Founder effect
4504:
4502:
4498:
4497:
4495:
4494:
4489:
4484:
4479:
4474:
4469:
4458:
4456:
4455:Basic concepts
4452:
4451:
4449:
4448:
4443:
4438:
4433:
4427:
4424:
4423:
4418:
4416:
4415:
4408:
4401:
4393:
4386:
4385:
4359:10.1086/284557
4353:(2): 241–262,
4337:
4318:
4284:
4262:
4211:
4195:
4169:(3): 715–730,
4153:
4103:
4083:10.1086/338370
4058:
4038:10.1086/286044
4009:
3983:(2): 362–381,
3965:Jerry A. Coyne
3951:
3897:
3868:
3830:(1): 200–208,
3824:Dolph Schluter
3810:
3797:
3755:
3739:
3711:(1): 295–303,
3703:" Revisited",
3691:
3627:
3583:
3539:
3497:
3453:
3388:
3341:
3323:(7): 330–343,
3313:Jerry A. Coyne
3294:
3268:(1): 124–138,
3249:
3199:
3148:
3106:(1): 229–239,
3090:
3049:
2988:
2960:(2): 865–884,
2933:
2889:
2855:(4): 409–420,
2828:
2819:|journal=
2802:978-0470016176
2801:
2775:
2768:
2741:
2734:
2705:
2687:
2678:|journal=
2661:978-0470016176
2660:
2613:
2585:(1): 197–215,
2569:
2559:(1): 261–273,
2543:
2525:(4): 469–480,
2505:
2499:
2481:
2468:
2453:
2433:10.1086/695136
2427:(2): 155–172,
2404:
2376:(5): 503–508,
2332:
2281:
2220:
2185:
2179:
2163:Jerry A. Coyne
2075:
2032:
2012:
1972:
1970:
1967:
1953:
1950:
1915:
1912:
1909:
1889:
1886:
1883:
1863:
1843:
1823:
1803:
1783:
1763:
1743:
1730:
1727:
1721:
1718:
1709:
1706:
1705:
1704:
1701:
1679:
1676:
1665:
1662:
1617:
1614:
1596:
1593:
1571:
1568:
1540:
1537:
1522:
1519:
1507:Main article:
1492:
1489:
1450:
1447:
1421:
1418:
1369:
1366:
1338:
1335:
1332:
1312:
1309:
1306:
1286:
1283:
1280:
1260:
1257:
1254:
1234:
1214:
1194:
1174:
1154:
1134:
1131:
1111:
1108:
1085:
1082:
1062:
1059:
1040:
1037:
1005:
1004:
1001:
998:
995:
940:hybrid species
911:
908:
879:
876:
842:W. Frank Blair
811:
810:
807:
804:
788:
785:
724:allopatrically
716:Wallace effect
690:increases the
675:
674:
672:
671:
664:
657:
649:
646:
645:
644:
643:
630:
613:
612:
609:
608:
603:
598:
593:
588:
583:
581:Social effects
578:
573:
568:
562:
559:
558:
555:
554:
551:
550:
545:
540:
535:
530:
525:
520:
515:
510:
505:
500:
495:
490:
485:
480:
475:
470:
465:
460:
455:
450:
445:
440:
435:
430:
424:
421:
420:
417:
416:
412:
411:
401:
396:
391:
386:
381:
376:
371:
364:
359:
354:
349:
343:
342:
339:
338:
335:
334:
330:
329:
324:
319:
314:
309:
307:Classification
304:
299:
294:
289:
288:
287:
277:
272:
267:
265:Common descent
262:
260:Origin of life
256:
255:
252:
251:
248:
247:
243:
242:
237:
232:
227:
222:
217:
212:
207:
202:
197:
192:
187:
182:
177:
172:
167:
162:
157:
152:
146:
145:
142:
141:
138:
137:
135:
134:
129:
124:
118:
117:
112:
107:
102:
96:
93:
92:
83:
75:
74:
68:
67:
26:
24:
18:Wallace effect
14:
13:
10:
9:
6:
4:
3:
2:
6099:
6088:
6085:
6083:
6080:
6078:
6075:
6074:
6072:
6057:
6053:
6049:
6047:
6039:
6038:
6035:
6029:
6026:
6024:
6021:
6019:
6016:
6014:
6011:
6007:
6004:
6003:
6002:
6001:Phylogenetics
5999:
5997:
5994:
5992:
5989:
5987:
5984:
5982:
5979:
5975:
5972:
5970:
5967:
5965:
5962:
5961:
5960:
5957:
5955:
5952:
5950:
5947:
5945:
5942:
5941:
5939:
5935:
5929:
5926:
5922:
5919:
5917:
5914:
5910:
5907:
5906:
5905:
5904:Structuralism
5902:
5900:
5897:
5895:
5892:
5890:
5887:
5885:
5882:
5880:
5879:Catastrophism
5877:
5876:
5875:
5872:
5870:
5867:
5866:
5864:
5860:
5854:
5851:
5849:
5846:
5844:
5841:
5839:
5838:Neo-Darwinism
5836:
5834:
5831:
5829:
5826:
5824:
5821:
5819:
5816:
5814:
5811:
5807:
5806:
5802:
5801:
5800:
5797:
5793:
5792:
5788:
5787:
5786:
5783:
5781:
5778:
5776:
5773:
5772:
5770:
5768:
5764:
5758:
5755:
5753:
5752:Reinforcement
5750:
5748:
5745:
5743:
5740:
5738:
5735:
5733:
5730:
5728:
5725:
5723:
5720:
5718:
5715:
5713:
5710:
5708:
5705:
5703:
5700:
5699:
5697:
5695:
5691:
5685:
5684:Catastrophism
5681:
5678:
5676:
5675:Macromutation
5672:
5671:Micromutation
5669:
5667:
5663:
5659:
5656:
5655:
5653:
5651:
5647:
5641:
5638:
5634:
5631:
5629:
5626:
5624:
5621:
5619:
5616:
5614:
5611:
5610:
5609:
5606:
5604:
5601:
5599:
5596:
5594:
5591:
5589:
5586:
5584:
5581:
5579:
5578:Immune system
5576:
5574:
5571:
5569:
5566:
5564:
5561:
5559:
5556:
5552:
5549:
5548:
5547:
5544:
5542:
5539:
5537:
5534:
5532:
5529:
5525:
5522:
5520:
5517:
5516:
5515:
5512:
5511:
5509:
5507:
5502:
5494:
5491:
5489:
5486:
5484:
5481:
5479:
5476:
5474:
5471:
5470:
5468:
5464:
5461:
5459:
5456:
5454:
5451:
5449:
5446:
5444:
5441:
5439:
5438:symbiogenesis
5436:
5435:
5434:
5431:
5429:
5426:
5424:
5421:
5419:
5416:
5415:
5413:
5411:
5406:
5400:
5397:
5395:
5392:
5390:
5387:
5385:
5382:
5378:
5375:
5374:
5373:
5370:
5366:
5363:
5359:
5356:
5354:
5351:
5350:
5349:
5346:
5344:
5341:
5339:
5336:
5334:
5331:
5329:
5326:
5322:
5319:
5317:
5314:
5313:
5312:
5309:
5307:
5304:
5303:
5302:
5299:
5297:
5294:
5290:
5287:
5286:
5285:
5282:
5280:
5277:
5275:
5272:
5270:
5267:
5263:
5260:
5259:
5258:
5255:
5253:
5250:
5246:
5243:
5242:
5241:
5238:
5236:
5233:
5232:
5230:
5228:
5223:
5217:
5214:
5212:
5209:
5207:
5204:
5202:
5199:
5197:
5194:
5192:
5189:
5188:
5186:
5182:
5176:
5173:
5171:
5168:
5166:
5163:
5159:
5156:
5154:
5151:
5149:
5146:
5145:
5144:
5141:
5139:
5136:
5134:
5131:
5129:
5126:
5124:
5121:
5117:
5114:
5112:
5109:
5108:
5107:
5106:Kin selection
5104:
5102:
5101:Genetic drift
5099:
5097:
5094:
5090:
5087:
5086:
5085:
5082:
5080:
5077:
5075:
5072:
5070:
5067:
5065:
5062:
5061:
5059:
5057:
5051:
5043:
5040:
5039:
5038:
5035:
5033:
5030:
5026:
5023:
5021:
5018:
5017:
5016:
5013:
5009:
5006:
5005:
5004:
5001:
4999:
4996:
4994:
4991:
4989:
4986:
4984:
4981:
4979:
4976:
4974:
4971:
4969:
4966:
4964:
4961:
4959:
4956:
4952:
4949:
4948:
4947:
4944:
4942:
4939:
4937:
4934:
4932:
4929:
4927:
4924:
4922:
4919:
4917:
4914:
4912:
4909:
4907:
4904:
4900:
4897:
4896:
4895:
4892:
4890:
4887:
4885:
4882:
4878:
4875:
4873:
4870:
4869:
4868:
4865:
4863:
4860:
4858:
4855:
4853:
4850:
4849:
4847:
4845:
4841:
4835:
4832:
4830:
4827:
4825:
4822:
4820:
4817:
4815:
4812:
4811:
4808:
4804:
4797:
4792:
4790:
4785:
4783:
4778:
4777:
4774:
4762:
4761:
4752:
4750:
4749:
4744:
4740:
4738:
4737:
4728:
4726:
4725:
4716:
4715:
4712:
4705:
4704:Chronospecies
4701:
4697:
4693:
4689:
4686:
4684:
4681:
4679:
4676:
4674:
4671:
4669:
4666:
4665:
4663:
4659:
4653:
4650:
4648:
4645:
4642:
4638:
4637:Reinforcement
4635:
4632:
4631:Recombination
4628:
4624:
4620:
4617:
4616:
4614:
4612:
4608:
4602:
4599:
4597:
4594:
4592:
4589:
4586:
4582:
4578:
4575:
4573:
4570:
4568:
4565:
4563:
4560:
4559:
4557:
4555:
4551:
4545:
4542:
4539:
4535:
4531:
4528:
4525:
4521:
4517:
4513:
4509:
4506:
4505:
4503:
4499:
4493:
4490:
4488:
4485:
4483:
4480:
4478:
4475:
4473:
4470:
4467:
4463:
4460:
4459:
4457:
4453:
4447:
4444:
4442:
4439:
4437:
4434:
4432:
4429:
4428:
4425:
4421:
4414:
4409:
4407:
4402:
4400:
4395:
4394:
4391:
4381:
4375:
4368:
4364:
4360:
4356:
4352:
4348:
4341:
4338:
4333:
4329:
4322:
4319:
4315:
4311:
4307:
4303:
4299:
4295:
4288:
4285:
4280:
4279:
4271:
4269:
4267:
4263:
4259:
4255:
4250:
4245:
4241:
4237:
4233:
4229:
4225:
4218:
4216:
4212:
4208:
4202:
4200:
4196:
4192:
4188:
4184:
4180:
4176:
4172:
4168:
4164:
4157:
4154:
4150:
4146:
4142:
4138:
4134:
4130:
4126:
4122:
4118:
4114:
4107:
4104:
4100:
4096:
4092:
4088:
4084:
4080:
4076:
4072:
4065:
4063:
4059:
4055:
4051:
4047:
4043:
4039:
4035:
4031:
4027:
4023:
4016:
4014:
4010:
4006:
4002:
3998:
3994:
3990:
3986:
3982:
3978:
3974:
3970:
3966:
3960:
3958:
3956:
3952:
3948:
3944:
3940:
3936:
3932:
3928:
3924:
3920:
3916:
3912:
3908:
3901:
3898:
3894:
3890:
3886:
3882:
3875:
3873:
3869:
3865:
3861:
3857:
3853:
3848:
3843:
3838:
3833:
3829:
3825:
3821:
3814:
3811:
3807:
3801:
3798:
3794:
3790:
3786:
3782:
3778:
3774:
3770:
3766:
3759:
3756:
3752:
3748:
3743:
3740:
3736:
3732:
3728:
3724:
3719:
3714:
3710:
3706:
3702:
3695:
3692:
3687:
3681:
3674:
3670:
3666:
3662:
3658:
3654:
3650:
3646:
3642:
3638:
3631:
3628:
3624:
3620:
3615:
3610:
3606:
3602:
3598:
3594:
3587:
3584:
3580:
3576:
3572:
3568:
3563:
3558:
3554:
3550:
3543:
3540:
3536:
3532:
3528:
3524:
3520:
3516:
3512:
3508:
3501:
3498:
3494:
3490:
3485:
3480:
3476:
3472:
3468:
3464:
3457:
3454:
3449:
3443:
3436:
3432:
3428:
3424:
3419:
3414:
3410:
3406:
3399:
3397:
3395:
3393:
3389:
3385:
3381:
3377:
3373:
3368:
3363:
3359:
3355:
3348:
3346:
3342:
3338:
3334:
3330:
3326:
3322:
3318:
3314:
3307:
3305:
3303:
3301:
3299:
3295:
3291:
3287:
3283:
3279:
3275:
3271:
3267:
3263:
3256:
3254:
3250:
3246:
3242:
3237:
3232:
3227:
3222:
3218:
3214:
3210:
3203:
3200:
3196:
3192:
3188:
3184:
3180:
3176:
3172:
3168:
3161:
3159:
3157:
3155:
3153:
3149:
3144:
3138:
3131:
3127:
3123:
3119:
3114:
3109:
3105:
3101:
3094:
3091:
3087:
3083:
3079:
3075:
3071:
3067:
3063:
3056:
3054:
3050:
3046:
3042:
3038:
3034:
3029:
3024:
3020:
3016:
3009:
3007:
3005:
3003:
3001:
2999:
2997:
2995:
2993:
2989:
2985:
2981:
2976:
2971:
2967:
2963:
2959:
2955:
2948:
2946:
2944:
2942:
2940:
2938:
2934:
2930:
2926:
2921:
2916:
2912:
2908:
2904:
2900:
2893:
2890:
2886:
2882:
2878:
2874:
2870:
2866:
2862:
2858:
2854:
2850:
2843:
2841:
2839:
2837:
2835:
2833:
2829:
2824:
2812:
2804:
2798:
2794:
2790:
2786:
2779:
2776:
2771:
2765:
2761:
2754:
2752:
2750:
2748:
2746:
2742:
2737:
2731:
2727:
2723:
2719:
2712:
2710:
2706:
2701:
2697:
2691:
2688:
2683:
2671:
2663:
2657:
2653:
2649:
2645:
2638:
2636:
2634:
2632:
2630:
2628:
2626:
2624:
2622:
2620:
2618:
2614:
2610:
2606:
2601:
2596:
2592:
2588:
2584:
2580:
2573:
2570:
2566:
2562:
2558:
2554:
2547:
2544:
2540:
2536:
2532:
2528:
2524:
2520:
2516:
2509:
2506:
2502:
2500:9781482263725
2496:
2492:
2485:
2482:
2478:
2472:
2469:
2464:
2457:
2454:
2450:
2446:
2442:
2438:
2434:
2430:
2426:
2422:
2415:
2408:
2405:
2401:
2397:
2393:
2389:
2384:
2379:
2375:
2371:
2367:
2361:
2359:
2357:
2355:
2353:
2351:
2349:
2347:
2345:
2343:
2341:
2339:
2337:
2333:
2329:
2325:
2320:
2315:
2310:
2305:
2301:
2297:
2290:
2288:
2286:
2282:
2277:
2271:
2264:
2260:
2256:
2252:
2248:
2244:
2240:
2236:
2229:
2227:
2225:
2221:
2217:
2213:
2209:
2205:
2201:
2194:
2192:
2190:
2186:
2182:
2176:
2172:
2168:
2164:
2158:
2156:
2154:
2152:
2150:
2148:
2146:
2144:
2142:
2140:
2138:
2136:
2134:
2132:
2130:
2128:
2126:
2124:
2122:
2120:
2118:
2116:
2114:
2112:
2110:
2108:
2106:
2104:
2102:
2100:
2098:
2096:
2094:
2092:
2090:
2088:
2086:
2084:
2082:
2080:
2076:
2071:
2065:
2058:
2054:
2050:
2046:
2039:
2037:
2033:
2028:
2022:
2015:
2013:9783527600908
2009:
2005:
2001:
1997:
1993:
1989:
1982:
1980:
1978:
1974:
1968:
1966:
1963:
1959:
1951:
1949:
1946:
1942:
1941:
1936:
1931:
1927:
1913:
1910:
1907:
1887:
1884:
1881:
1861:
1841:
1821:
1801:
1781:
1761:
1741:
1728:
1726:
1719:
1717:
1715:
1707:
1702:
1699:
1698:
1697:
1694:
1684:
1677:
1675:
1672:
1663:
1660:
1656:
1654:
1650:
1646:
1642:
1638:
1634:
1629:
1627:
1622:
1615:
1613:
1611:
1607:
1603:
1594:
1592:
1589:
1585:
1584:
1577:
1569:
1567:
1565:
1561:
1552:
1551:
1545:
1538:
1536:
1533:
1529:
1520:
1518:
1516:
1510:
1502:
1497:
1490:
1488:
1486:
1482:
1478:
1474:
1471:
1467:
1463:
1459:
1456:
1448:
1446:
1444:
1439:
1437:
1432:
1428:
1419:
1417:
1415:
1411:
1407:
1403:
1399:
1394:
1392:
1388:
1378:
1374:
1367:
1365:
1363:
1359:
1355:
1354:recombination
1350:
1336:
1333:
1330:
1310:
1307:
1304:
1284:
1281:
1278:
1258:
1255:
1252:
1232:
1212:
1192:
1172:
1152:
1132:
1129:
1109:
1106:
1098:
1083:
1080:
1060:
1057:
1050:
1046:
1038:
1036:
1034:
1030:
1026:
1021:
1018:
1014:
1010:
1002:
999:
996:
993:
992:
991:
988:
986:
982:
978:
974:
970:
966:
962:
958:
953:
945:
941:
937:
931:
930:hybrid swarms
923:
916:
909:
907:
904:
900:
896:
892:
887:
886:
877:
875:
873:
869:
865:
859:
855:
853:
852:
847:
846:Ronald Fisher
843:
839:
835:
831:
827:
819:
815:
808:
805:
802:
801:
800:
798:
794:
786:
784:
782:
778:
774:
770:
766:
765:invertebrates
762:
758:
754:
750:
745:
742:
736:
734:
729:
725:
721:
717:
713:
709:
705:
701:
697:
693:
689:
685:
681:
680:Reinforcement
670:
665:
663:
658:
656:
651:
650:
648:
647:
641:
631:
628:
623:
617:
616:
615:
614:
607:
604:
602:
599:
597:
594:
592:
589:
587:
584:
582:
579:
577:
574:
572:
569:
567:
564:
563:
557:
556:
549:
546:
544:
541:
539:
536:
534:
531:
529:
526:
524:
521:
519:
516:
514:
513:Phylogenetics
511:
509:
506:
504:
501:
499:
496:
494:
491:
489:
486:
484:
481:
479:
476:
474:
471:
469:
466:
464:
461:
459:
456:
454:
451:
449:
446:
444:
441:
439:
436:
434:
431:
429:
426:
425:
419:
418:
409:
405:
402:
400:
397:
395:
392:
390:
387:
385:
382:
380:
377:
375:
372:
370:
369:
365:
363:
360:
358:
357:Before Darwin
355:
353:
350:
348:
345:
344:
337:
336:
328:
325:
323:
320:
318:
315:
313:
310:
308:
305:
303:
300:
298:
295:
293:
290:
286:
283:
282:
281:
278:
276:
273:
271:
268:
266:
263:
261:
258:
257:
250:
249:
241:
238:
236:
233:
231:
228:
226:
223:
221:
218:
216:
213:
211:
208:
206:
203:
201:
198:
196:
193:
191:
188:
186:
185:Genetic drift
183:
181:
178:
176:
173:
171:
168:
166:
163:
161:
158:
156:
153:
151:
148:
147:
140:
139:
133:
130:
128:
125:
123:
120:
119:
116:
113:
111:
108:
106:
103:
101:
98:
97:
95:
94:
90:
86:
81:
77:
76:
73:
69:
65:
64:
58:
54:
50:
46:
41:
35:
30:
19:
6013:Polymorphism
5996:Astrobiology
5944:Biogeography
5899:Saltationism
5889:Orthogenesis
5874:Alternatives
5803:
5789:
5751:
5722:Cospeciation
5717:Cladogenesis
5666:Saltationism
5623:Mating types
5546:Color vision
5531:Avian flight
5453:mitochondria
5191:Canalisation
5069:Biodiversity
4814:Introduction
4758:
4746:
4734:
4722:
4636:
4538:Ring species
4487:Cospeciation
4482:Cladogenesis
4431:Introduction
4350:
4346:
4340:
4331:
4327:
4321:
4300:(1): 15–23,
4297:
4293:
4287:
4277:
4231:
4227:
4223:
4206:
4166:
4162:
4156:
4116:
4112:
4106:
4074:
4070:
4029:
4025:
4021:
3980:
3976:
3972:
3969:H. Allen Orr
3914:
3910:
3906:
3900:
3884:
3880:
3827:
3823:
3813:
3805:
3800:
3768:
3764:
3758:
3750:
3747:A. R. McCune
3742:
3708:
3704:
3700:
3694:
3640:
3636:
3630:
3596:
3592:
3586:
3552:
3548:
3542:
3510:
3506:
3500:
3466:
3462:
3456:
3408:
3404:
3360:(1): 21–29,
3357:
3353:
3320:
3316:
3265:
3261:
3216:
3213:PLOS Biology
3212:
3208:
3202:
3170:
3166:
3103:
3099:
3093:
3072:(1): 27–39,
3069:
3065:
3018:
3014:
2957:
2953:
2902:
2898:
2892:
2852:
2848:
2784:
2778:
2759:
2721:
2699:
2690:
2643:
2582:
2578:
2572:
2556:
2552:
2546:
2522:
2518:
2514:
2508:
2490:
2484:
2476:
2471:
2462:
2456:
2424:
2420:
2407:
2373:
2369:
2299:
2296:PLOS Biology
2295:
2238:
2234:
2207:
2203:
2170:
2167:H. Allen Orr
2048:
2044:
1998:(3): 60–93,
1995:
1991:
1955:
1938:
1934:
1932:
1928:
1732:
1723:
1711:
1690:
1670:
1667:
1658:
1655:influences:
1649:Megan Higgie
1635:, deceptive
1630:
1619:
1598:
1581:
1579:
1556:
1548:
1528:hybrid zones
1524:
1512:
1469:
1454:
1452:
1440:
1423:
1395:
1387:hybrid zones
1384:
1371:
1351:
1042:
1022:
1006:
989:
956:
949:
943:
921:
891:Roger Butlin
885:Gastrophryne
883:
881:
863:
860:
856:
849:
823:
797:H. Allen Orr
790:
781:biodiversity
746:
737:
715:
679:
678:
533:Sociobiology
518:Paleontology
366:
302:Biogeography
297:Biodiversity
215:Coextinction
205:Co-operation
180:Polymorphism
105:Introduction
29:
6023:Systematics
5894:Mutationism
5712:Catagenesis
5640:Snake venom
5573:Eusociality
5551:in primates
5541:Cooperation
5469:In animals
5289:butterflies
5262:Cephalopods
5252:Brachiopods
5184:Development
5158:Mate choice
4911:Convergence
4894:Coevolution
4852:Abiogenesis
4760:WikiProject
4520:Centrifugal
4281:, Wordpress
2241:: 156–182,
2210:: 339–364,
1653:ethological
1637:pollination
1626:stickleback
1481:mating call
1475:such as in
1408:instead of
1035:isolation.
965:mate choice
878:Terminology
844:. In 1930,
793:Jerry Coyne
761:vertebrates
543:Systematics
352:Renaissance
230:Convergence
220:Contingency
210:Coevolution
6087:Speciation
6071:Categories
5884:Lamarckism
5862:Philosophy
5785:David Hume
5747:Peripatric
5742:Parapatric
5727:Ecological
5707:Anagenesis
5702:Allopatric
5694:Speciation
5658:Gradualism
5583:Metabolism
5443:chromosome
5433:Eukaryotes
5211:Modularity
5128:Population
5054:Population
5015:Speciation
4993:Panspermia
4946:Extinction
4941:Exaptation
4916:Divergence
4889:Cladistics
4877:Reciprocal
4857:Adaptation
4623:Polyploidy
4585:Allochrony
4562:Adaptation
4530:Parapatric
4512:Peripatric
4508:Allopatric
4477:Anagenesis
4420:Speciation
4224:Drosophila
4077:: S22–35,
4022:Drosophila
3973:Drosophila
3907:Drosophila
3701:Drosophila
3209:Drosophila
2517:complex",
2171:Speciation
1969:References
1671:Drosophila
1583:Drosophila
1574:See also:
1550:Drosophila
1485:morphology
1427:phenotypes
1398:extinction
1391:parapatric
903:divergence
684:speciation
317:Cladistics
240:Extinction
225:Divergence
195:Speciation
175:Adaptation
89:John Gould
45:speciation
6018:Protocell
5869:Darwinism
5757:Sympatric
5506:processes
5394:Tetrapods
5343:Kangaroos
5269:Dinosaurs
5206:Inversion
5175:Variation
5096:Gene flow
5089:Inclusive
4899:Mutualism
4844:Evolution
4544:Sympatric
4334:: 369–371
4163:Evolution
3977:Evolution
3887:: 23–48,
3847:2429/6366
3765:Evolution
3705:Evolution
3549:Evolution
3507:Evolution
3405:Evolution
3354:Evolution
3262:Evolution
3167:Evolution
3100:Evolution
3015:Evolution
2821:ignored (
2811:cite book
2680:ignored (
2670:cite book
2519:Evolution
2463:Darwinism
1940:D. yakuba
1729:Gene flow
1633:parasites
1420:Selection
1410:infertile
1362:polygenic
1334:×
1308:×
1282:×
1256:×
977:genotypes
973:gene flow
944:intrinsic
922:extrinsic
576:Dysgenics
292:Phylogeny
190:Gene flow
160:Diversity
155:Variation
55:upon the
49:selecting
6046:Category
5921:Vitalism
5916:Theistic
5909:Spandrel
5593:Morality
5588:Monogamy
5463:plastids
5428:Flagella
5384:Reptiles
5365:sea cows
5348:primates
5257:Molluscs
5235:Bacteria
5123:Mutation
5056:genetics
5032:Taxonomy
4978:Mismatch
4958:Homology
4872:Cheating
4867:Altruism
4724:Category
4641:evidence
4446:Glossary
4374:citation
4367:83906561
4294:Genetica
4258:21129972
4191:27621958
4183:10937247
4099:16516804
4091:18707367
4046:18811269
3997:28568554
3864:40648544
3856:28568163
3793:42100751
3785:28568007
3735:40390753
3727:28568795
3680:citation
3665:16251964
3593:Genetics
3579:25296147
3571:11761053
3535:28564502
3493:11467428
3442:citation
3435:31107731
3427:28565558
3384:12563023
3376:10937179
3337:11403865
3290:28563447
3245:20351771
3195:12269299
3187:28565111
3137:citation
3130:15602575
3122:22220877
3086:21978464
3045:22630822
3037:28568419
2954:Genetics
2929:11410152
2885:16175451
2877:20455922
2698:(1937).
2609:17249073
2579:Genetics
2539:88238743
2441:29351021
2400:26625194
2392:10620021
2370:Heredity
2328:15597115
2270:citation
2255:19566707
2169:(2004),
2064:citation
2021:citation
1945:São Tomé
1678:Sympatry
1564:sympatry
1501:sympatry
1491:Evidence
1431:directly
1364:traits.
1039:Genetics
1020:choice.
872:Servedio
777:habitats
749:genetics
640:Category
566:Eugenics
408:timeline
389:Evo-devo
347:Overview
165:Mutation
127:Evidence
122:Glossary
51:against
6077:Ecology
5937:Related
5767:History
5628:Meiosis
5563:Empathy
5558:Emotion
5458:nucleus
5399:Viruses
5389:Spiders
5301:Mammals
5284:Insects
5084:Fitness
5020:Species
4819:Outline
4736:Commons
4688:Fossils
4678:Insects
4627:Klepton
4516:Quantum
4462:Species
4436:History
4314:7947934
4249:3019097
4149:4360057
4141:2677747
4121:Bibcode
4054:5406442
4005:1678429
3947:4252448
3939:7791899
3919:Bibcode
3673:4417281
3645:Bibcode
3623:8807317
3614:1207414
3527:2409358
3484:1690725
3282:2407946
3236:2843595
2984:9927476
2975:1460501
2920:1088735
2857:Bibcode
2726:158–179
2600:1214384
2449:3397377
2263:4598270
1874:, both
1641:mimicry
1621:Ecology
1414:fertile
1402:fitness
1049:fitness
1033:gametic
981:fitness
901:or the
864:looking
787:History
733:zygotes
708:fitness
132:History
115:Outline
53:hybrids
6056:Portal
5732:Hybrid
5568:Ethics
5410:organs
5372:Plants
5358:lemurs
5353:humans
5338:horses
5328:hyenas
5316:wolves
5311:canids
5245:origin
4683:Plants
4534:Clines
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4113:Nature
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1664:Fusion
1639:, and
1521:Nature
1462:signal
1097:allele
920:1. An
910:Models
889:used.
753:mating
704:hybrid
686:where
638:
362:Darwin
5519:Death
5514:Aging
5493:brain
5279:Fungi
5240:Birds
5153:Fungi
4951:Event
4834:Index
4668:Birds
4363:S2CID
4310:S2CID
4187:S2CID
4145:S2CID
4095:S2CID
4050:S2CID
4001:S2CID
3943:S2CID
3860:S2CID
3789:S2CID
3731:S2CID
3669:S2CID
3575:S2CID
3523:JSTOR
3431:S2CID
3380:S2CID
3278:JSTOR
3191:S2CID
3126:S2CID
3041:S2CID
2881:S2CID
2535:S2CID
2445:S2CID
2417:(PDF)
2396:S2CID
2259:S2CID
1412:, as
769:fungi
100:Index
6006:Tree
5478:hair
5418:Cell
5321:dogs
5306:cats
5296:Life
5274:Fish
5227:taxa
4673:Fish
4380:link
4254:PMID
4179:PMID
4137:PMID
4087:PMID
4042:PMID
4024:?",
3993:PMID
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3781:PMID
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3448:link
3423:PMID
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3333:PMID
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3183:PMID
3143:link
3118:PMID
3082:PMID
3033:PMID
2980:PMID
2925:PMID
2873:PMID
2823:help
2797:ISBN
2764:ISBN
2730:ISBN
2682:help
2656:ISBN
2605:PMID
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2437:PMID
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2324:PMID
2276:link
2251:PMID
2239:1168
2175:ISBN
2070:link
2027:link
2008:ISBN
1937:and
1900:and
1854:and
1794:and
1647:and
1513:The
1470:e.g.
1455:e.g.
1358:loci
1323:and
1271:and
1205:and
971:and
957:e.g.
868:Noor
795:and
763:and
698:and
110:Main
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5423:DNA
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