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Species distribution

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600:, use the technique of communal hunting to increase their success rate at catching prey. Studies have shown that larger packs of African wild dogs tend to have a greater number of successful kills. A prime example of clumped distribution due to patchy resources is the wildlife in Africa during the dry season; lions, hyenas, giraffes, elephants, gazelles, and many more animals are clumped by small water sources that are present in the severe dry season. It has also been observed that extinct and threatened species are more likely to be clumped in their distribution on a phylogeny. The reasoning behind this is that they share traits that increase vulnerability to extinction because related taxa are often located within the same broad geographical or habitat types where human-induced threats are concentrated. Using recently developed complete phylogenies for mammalian carnivores and primates it has been shown that in the majority of instances threatened species are far from randomly distributed among 794:
of species distribution can create a bio-climate range, or bio-climate envelope. The envelope can range from a local to a global scale or from a density independence to dependence. The hierarchical model takes into consideration the requirements, impacts or resources as well as local extinctions in disturbance factors. Models can integrate the dispersal/migration model, the disturbance model, and abundance model. Species distribution models (SDMs) can be used to assess climate change impacts and conservation management issues. Species distribution models include: presence/absence models, the dispersal/migration models, disturbance models, and abundance models. A prevalent way of creating predicted distribution maps for different species is to reclassify a land cover layer depending on whether or not the species in question would be predicted to habit each cover type. This simple SDM is often modified through the use of range data or ancillary information, such as elevation or water distance.
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a given area are more preferred because these models include an estimate of confidence in the likelihood of the species being present/absent. They are also more valuable than data collected based on simple presence or absence because models based on probability allow the formation of spatial maps that indicates how likely a species is to be found in a particular area. Similar areas can then be compared to see how likely it is that a species will occur there also; this leads to a relationship between habitat suitability and species occurrence.
579:, is the most common type of dispersion found in nature. In clumped distribution, the distance between neighboring individuals is minimized. This type of distribution is found in environments that are characterized by patchy resources. Animals need certain resources to survive, and when these resources become rare during certain parts of the year animals tend to "clump" together around these crucial resources. Individuals might be clustered together in an area due to social factors such as 665:
another. Random distribution is rare in nature as biotic factors, such as the interactions with neighboring individuals, and abiotic factors, such as climate or soil conditions, generally cause organisms to be either clustered or spread. Random distribution usually occurs in habitats where environmental conditions and resources are consistent. This pattern of dispersion is characterized by the lack of any strong social interactions between species. For example; When
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quail, and their predators, such as the coyote. An advantage of a herd, community, or other clumped distribution allows a population to detect predators earlier, at a greater distance, and potentially mount an effective defense. Due to limited resources, populations may be evenly distributed to minimize competition, as is found in forests, where competition for sunlight produces an even distribution of trees.
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conservation planning under climate change predictions (global climate models, which are frequently used in the creation of species distribution models, usually consist of 50–100 km size grids) which could lead to over-prediction of future ranges in species distribution modeling. This can result in the misidentification of protected areas intended for a species future habitat.
767:. If the variance/mean ratio is equal to 1, the population is found to be randomly distributed. If it is significantly greater than 1, the population is found to be clumped distribution. Finally, if the ratio is significantly less than 1, the population is found to be evenly distributed. Typical statistical tests used to find the significance of the variance/mean ratio include 591:'s nest of eaglets exhibits a clumped species distribution because all the offspring are in a small subset of a survey area before they learn to fly. Clumped distribution can be beneficial to the individuals in that group. However, in some herbivore cases, such as cows and wildebeests, the vegetation around them can suffer, especially if animals target one plant in particular. 690:
that are each other's nearest neighbor, the distance is recorded twice, once for each individual. To receive accurate results, it is suggested that the number of distance measurements is at least 50. The average distance between nearest neighbors is compared to the expected distance in the case of random distribution to give the ratio:
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The Species Distribution Grids Project is an effort led out of the University of Columbia to create maps and databases of the whereabouts of various animal species. This work is centered on preventing deforestation and prioritizing areas based on species richness. As of April 2009, data are available
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can be used to determine if a distribution is clumped, uniform, or random. To utilize the Clark–Evans nearest neighbor method, researchers examine a population of a single species. The distance of an individual to its nearest neighbor is recorded for each individual in the sample. For two individuals
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Species distribution can be predicted based on the pattern of biodiversity at spatial scales. A general hierarchical model can integrate disturbance, dispersal and population dynamics. Based on factors of dispersal, disturbance, resources limiting climate, and other species distribution, predictions
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However, many researchers believe that species distribution models based on statistical analysis, without including ecological models and theories, are too incomplete for prediction. Instead of conclusions based on presence-absence data, probabilities that convey the likelihood a species will occupy
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Random distribution, also known as unpredictable spacing, is the least common form of distribution in nature and occurs when the members of a given species are found in environments in which the position of each individual is independent of the other individuals: they neither attract nor repel one
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Researchers from the Arctic Ocean Diversity (ARCOD) project have documented rising numbers of warm-water crustaceans in the seas around Norway's Svalbard Islands. ARCOD is part of the Census of Marine Life, a huge 10-year project involving researchers in more than 80 nations that aims to chart the
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are dispersed by wind, random distribution will often occur as the seedlings land in random places determined by uncontrollable factors. Oyster larvae can also travel hundreds of kilometers powered by sea currents, which can result in their random distribution. Random distributions exhibit chance
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Biotic factors such as predation, disease, and inter- and intra-specific competition for resources such as food, water, and mates can also affect how a species is distributed. For example, biotic factors in a quail's environment would include their prey (insects and seeds), competition from other
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distribution, is evenly spaced. Uniform distributions are found in populations in which the distance between neighboring individuals is maximized. The need to maximize the space between individuals generally arises from competition for a resource such as moisture or nutrients, or as a result of
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Recent studies have indicated that the grid size used can have an effect on the output of these species distribution models. The standard 50x50 km grid size can select up to 2.89 times more area than when modeled with a 1x1 km grid for the same species. This has several effects on the species
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The variance/mean ratio method focuses mainly on determining whether a species fits a randomly spaced distribution, but can also be used as evidence for either an even or clumped distribution. To utilize the Variance/Mean ratio method, data is collected from several random samples of a given
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exudes a chemical that inhibits the growth of other plants but not those of its own species, and thus can affect the distribution of specific rival species. Allelopathy usually results in uniform distributions, and its potential to suppress weeds is being researched. Farming and agricultural
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of the organism. Plants are well documented as examples showing how phenology is an adaptive trait that can influence fitness in changing climates. Physiology can influence species distributions in an environmentally sensitive manner because physiology underlies movement such as
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population. In this analysis, it is imperative that data from at least 50 sample plots is considered. The number of individuals present in each sample is compared to the expected counts in the case of random distribution. The expected distribution can be found using
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direct social interactions between individuals within the population, such as territoriality. For example, penguins often exhibit uniform spacing by aggressively defending their territory among their neighbors. The burrows of
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Other causes of clumped distributions are the inability of offspring to independently move from their habitat. This is seen in juvenile animals that are immobile and strongly dependent upon parental care. For example, the
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for example are also regularly distributed, which can be seen on satellite images. Plants also exhibit uniform distributions, like the creosote bushes in the southwestern region of the United States.
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An example of the effects of abiotic factors on species distribution can be seen in drier areas, where most individuals of a species will gather around water sources, forming a clumped distribution.
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A contiguous distribution is one in which individuals are closer together than they would be if they were randomly or evenly distributed, i.e., it is clumped distribution with a single clump.
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Hülsmann, Norbert; Galil, Bella S. (2002), Leppäkoski, Erkki; Gollasch, Stephan; Olenin, Sergej (eds.), "Protists — A Dominant Component of the Ballast-Transported Biota",
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contains sample maps for the Species Grids data set. These maps are not inclusive but rather contain a representative sample of the types of data available for download:
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Wilschut, L.I; Laudisoit, A.; Hughes, N.K; Addink, E.A.; de Jong, S.M.; Heesterbeek, J.A.P.; Reijniers, J.; Eagle, S.; Dubyanskiy, V.M.; Begon, M. (19 May 2015).
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Wilschut, L.I; Addink, E.A.; Heesterbeek, J.A.P.; Dubyanskiy, V.M; Davis, S.A.; Laudisoit, A.; Begon, M.; Burdelov, L.A.; Atshabar, B.B.; de Jong, S.M. (2013).
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On large scales, the pattern of distribution among individuals in a population is clumped. On small scales, the pattern may be clumped, regular, or random.
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is significantly less than 1, the population is clumped. Statistical tests (such as t-test, chi squared, etc.) can then be used to determine whether
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practices often create uniform distribution in areas where it would not previously exist, for example, orange trees growing in rows on a plantation.
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Clumped distribution in species acts as a mechanism against predation as well as an efficient mechanism to trap or corner prey. African wild dogs,
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Bird species in these corridors are connected to a main range for the species (contiguous range) or are in an isolated geographic range and be a
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and family groups. Organisms that usually serve as prey form clumped distributions in areas where they can hide and detect predators easily.
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One common example of bird species' ranges are land mass areas bordering water bodies, such as oceans, rivers, or lakes; they are called a
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Philip J. Clark and Francis C. Evans (Oct 1954). "Distance to Nearest Neighbor as a Measure of Spatial Relationships in Populations".
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typically means that a species has been transported by humans (intentionally or accidentally) across a major geographical barrier.
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often fill their ballasts with water at one port and empty them in another, causing a wider distribution of aquatic species.
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Purvis, A; Agapowe, P-M; Gittleman, JL; Mace, GM (2000). "Non-random extinction and the loss of evolutionary history".
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in the east are two examples of this habitat, used in summer, and winter, by separate species, for different reasons.
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A further example of a bird wildlife corridor would be a mountain range corridor. In the U.S. of North America, the
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Richardson, David M.; Pysek, Petr; Rejmanek, Marcel; Barbour, Michael G.; Panetta, F. Dane; West, Carol J. (2000).
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diversity, distribution and abundance of life in the oceans. Marine Life has become largely affected by increasing
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occurs when two or more areas of the range of a taxon are considerably separated from each other geographically.
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which inhibit the growth of other plants around it and results in uniform distribution. This is an example of
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is a species in California that naturally grows in uniform spacing. This flower releases chemicals called
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for global amphibian distributions, as well as birds and mammals in the Americas. The map gallery
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map represents the region where individuals of a species can be found. This is a range map of
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On large scales, the pattern of distribution among individuals in a population is clumped.
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factors are abiotic factors regarding soil, such as the coarseness of soil, local geology,
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is spatially arranged. The geographic limits of a particular taxon's distribution is its
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For species for which only part of their range is used for breeding activity, the terms
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climatic factors consist of sunlight, atmosphere, humidity, temperature, and salinity;
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is significantly greater than 1, the population is evenly dispersed. Lastly, if
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is the geographical area within which that species can be found. Within that range,
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Creel, N.M. and S. (1995). "Communal Hunting and Pack Size in African Wild Dogs,
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Nearest-Neighbour Distance Measurements for the Estimation of Animal Populations
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For species found in different regions at different times of year, especially
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There are various ways to determine the distribution pattern of species. The
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Invasive Aquatic Species of Europe. Distribution, Impacts and Management
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Philosophical Transactions of the Royal Society B: Biological Sciences
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International Journal of Applied Earth Observation and Geoinformation
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over land that they stop on for an intermittent, hit or miss, visit.
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as a whole (range). Species distribution is not to be confused with
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are one of the largest distributors due to the current trends in
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Livestock Grazing Distribution Patterns: Does Animal Age Matter?
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Variance to mean ratio and the spatial distribution of animals
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Geographic or temporal qualifiers are often added, such as in
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is equal to 1, then the population is randomly dispersed. If
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Sometimes a distinction is made between a species' natural,
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One key factor in determining species distribution is the
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is often used, as opposed to areas where it occurs as a
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social factors include land use and water availability.
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Range is often described with the following qualities:
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are (from top to bottom) uniform, random, and clumped.
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Three basic types of population distribution within a
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(1958). 540:Patterns on small scales 420:Patterns on large scales 3071:Ontogenetic niche shift 2934:Ideal free distribution 2844:Ecological facilitation 2594:Malthusian growth model 2564:Consumer-resource model 2421:Paradox of the plankton 2386:Energy systems language 2106:Chemoorganoheterotrophy 2073:Optimal foraging theory 2048:Heterotrophic nutrition 1525:Mauseth, James (2008). 1417:Journal of Biogeography 945:10.5751/ES-01742-110206 569:aggregated distribution 428:Bird wildlife corridors 408:and the expanse of the 3217:Ecological forecasting 3161:Marginal value theorem 2959:Landscape epidemiology 2894:Cross-boundary subsidy 2829:Biological interaction 2179:Microbial intelligence 1867:Green world hypothesis 1177:Communications Biology 1132:10.1098/rstb.2010.0142 859:Geographic range limit 734: 553: 253:, or colonized range. 151: 69:"Species distribution" 3222:Ecological humanities 3121:Ecological energetics 3066:Niche differentiation 2929:Habitat fragmentation 2697:Ecological extinction 2644:Small population size 2396:Feed conversion ratio 2376:Ecological succession 2308:San Francisco Estuary 2222:Ecological efficiency 2164:Microbial cooperation 1641:Banerjee, B. (1976). 735: 652:Leucaena leucocephala 547: 519:Appalachian Mountains 314:Disjunct distribution 135: 3247:Evolutionary ecology 3212:Ecological footprint 3207:Ecological economics 3131:Ecological threshold 3126:Ecological indicator 2996:Source–sink dynamics 2949:Land change modeling 2944:Insular biogeography 2796:Species distribution 2535:Modelling ecosystems 2194:Microbial metabolism 2033:Intraguild predation 1822:Biogeochemical cycle 1788:Modelling ecosystems 765:Poisson distribution 697: 565:Clumped distribution 460:improve this section 155:Species distribution 54:improve this article 3347:Population genetics 3337:Ecology terminology 3297:Theoretical ecology 3272:Natural environment 3136:Ecosystem diversity 3106:Ecological collapse 3096:Bateman's principle 3051:Limiting similarity 2964:Landscape limnology 2786:Species homogeneity 2624:Population modeling 2619:Population dynamics 2436:Trophic state index 1674:2005JApEc..42..720V 1597:1954Ecol...35..445C 1486:2013IJAEO..23...81W 1429:2015JBiog..42.1281W 1345:2000Sci...288..328P 1126:(1555): 3149–3160. 1043:2000DivDi...6...93R 988:2004DivDi..10..135C 932:Ecology and Society 358:, and aeration; and 272:are often employed. 3342:Population ecology 3308:Outline of ecology 3257:Industrial ecology 3252:Functional ecology 3116:Ecological deficit 3061:Niche construction 3024:Ecosystem engineer 2801:Species–area curve 2722:Introduced species 2537:: Other components 2469:Deimatic behaviour 2371:Ecological network 2303:North Pacific Gyre 2288:hydrothermal vents 2227:Ecological pyramid 2174:Microbial food web 1985:Primary production 1930:Foundation species 730: 638:Salvia leucophylla 618:Regular or uniform 573:clumped dispersion 554: 281:non-breeding range 224:population density 152: 143:Juniperus communis 3314: 3313: 3197:Balance of nature 2954:Landscape ecology 2839:Community ecology 2781:Species diversity 2717:Indicator species 2712:Gradient analysis 2589:Logistic function 2497: 2496: 2454:Animal coloration 2431:Trophic mutualism 2169:Microbial ecology 1960:Photoheterotrophs 1945:Myco-heterotrophy 1857:Ecosystem ecology 1842:Carrying capacity 1807:Abiotic component 1548:978-0-7637-5345-0 1437:10.1111/jbi.12534 1339:(5464): 328–330. 1100:. 7 October 2019. 1077:. 7 October 2019. 728: 727: 712: 508:wildlife corridor 496: 495: 488: 130: 129: 122: 104: 16:(Redirected from 3354: 3327:Animal migration 3014:Ecological niche 2986:selection theory 2806:Umbrella species 2791:Species richness 2727:Invasive species 2707:Flagship species 2614:Population cycle 2609:Overexploitation 2574:Ecological yield 2524: 2517: 2510: 2501: 2406:Mesotrophic soil 2346:Climax community 2278:Marine food webs 2217:Biomagnification 2018:Chemoorganotroph 1872:Keystone species 1832:Biotic component 1777: 1770: 1763: 1754: 1731: 1730: 1728: 1727: 1718:. Archived from 1708: 1702: 1701: 1694: 1688: 1687: 1685: 1653: 1647: 1646: 1638: 1632: 1631: 1623: 1617: 1616: 1580: 1574: 1573: 1571: 1570: 1559: 1553: 1552: 1532: 1522: 1516: 1515: 1505: 1465: 1459: 1458: 1448: 1423:(7): 1281–1292. 1408: 1402: 1401: 1399: 1398: 1383: 1377: 1371: 1365: 1364: 1328: 1322: 1321: 1304:(5): 1325–1339. 1298:Animal Behaviour 1289: 1283: 1282: 1270: 1260: 1251: 1250: 1225: 1219: 1218: 1208: 1168: 1162: 1161: 1151: 1112:Chuine, Isabelle 1108: 1102: 1101: 1098:"Abiotic factor" 1094: 1088: 1085: 1079: 1078: 1071: 1065: 1064: 1054: 1022: 1016: 1015: 973: 964: 958: 957: 947: 923: 917: 916: 914: 913: 899: 864:Animal migration 844: 832: 820: 769:Student's t-test 739: 737: 736: 731: 729: 725: 724: 713: 710: 675:Poisson clumping 534:passage migrants 491: 484: 480: 477: 471: 440: 432: 264:, terms such as 249:, transplanted, 182:region of origin 125: 118: 114: 111: 105: 103: 62: 38: 30: 21: 3362: 3361: 3357: 3356: 3355: 3353: 3352: 3351: 3317: 3316: 3315: 3310: 3301: 3287:Systems ecology 3175: 3146:Extinction debt 3111:Ecological debt 3101:Bioluminescence 3082: 3075: 3044:marine habitats 3019:Ecological trap 3000: 2880: 2873: 2816: 2810: 2766:Rapoport's rule 2761:Priority effect 2702:Endemic species 2670: 2629:Population size 2545: 2538: 2528: 2498: 2493: 2446: 2440: 2426:Trophic cascade 2336:Bioaccumulation 2319: 2246: 2203: 2125: 2092: 1989: 1901: 1862:Ecosystem model 1795: 1781: 1739: 1734: 1725: 1723: 1710: 1709: 1705: 1696: 1695: 1691: 1655: 1654: 1650: 1640: 1639: 1635: 1625: 1624: 1620: 1605:10.2307/1931034 1582: 1581: 1577: 1568: 1566: 1561: 1560: 1556: 1549: 1524: 1523: 1519: 1467: 1466: 1462: 1410: 1409: 1405: 1396: 1394: 1385: 1384: 1380: 1372: 1368: 1330: 1329: 1325: 1291: 1290: 1286: 1279: 1262: 1261: 1254: 1248: 1227: 1226: 1222: 1170: 1169: 1165: 1110: 1109: 1105: 1096: 1095: 1091: 1086: 1082: 1075:"Biotic factor" 1073: 1072: 1068: 1024: 1023: 1019: 971: 966: 965: 961: 925: 924: 920: 911: 909: 901: 900: 896: 892: 855: 848: 845: 836: 833: 824: 821: 804: 791: 785: 695: 694: 683: 662: 620: 562: 542: 492: 481: 475: 472: 457: 441: 430: 422: 379: 342: 322: 200: 194: 126: 115: 109: 106: 63: 61: 51: 39: 28: 23: 22: 15: 12: 11: 5: 3360: 3358: 3350: 3349: 3344: 3339: 3334: 3329: 3319: 3318: 3312: 3311: 3306: 3303: 3302: 3300: 3299: 3294: 3289: 3284: 3279: 3274: 3269: 3267:Microecosystem 3264: 3259: 3254: 3249: 3244: 3239: 3234: 3229: 3224: 3219: 3214: 3209: 3204: 3199: 3194: 3189: 3183: 3181: 3177: 3176: 3174: 3173: 3168: 3166:Thorson's rule 3163: 3158: 3153: 3148: 3143: 3138: 3133: 3128: 3123: 3118: 3113: 3108: 3103: 3098: 3093: 3091:Assembly rules 3087: 3085: 3077: 3076: 3074: 3073: 3068: 3063: 3058: 3053: 3048: 3047: 3046: 3036: 3031: 3026: 3021: 3016: 3010: 3008: 3002: 3001: 2999: 2998: 2993: 2988: 2976: 2974:Patch dynamics 2971: 2969:Metapopulation 2966: 2961: 2956: 2951: 2946: 2941: 2936: 2931: 2926: 2921: 2916: 2911: 2906: 2901: 2896: 2891: 2885: 2883: 2875: 2874: 2872: 2871: 2866: 2864:Storage effect 2861: 2856: 2851: 2846: 2841: 2836: 2831: 2826: 2820: 2818: 2812: 2811: 2809: 2808: 2803: 2798: 2793: 2788: 2783: 2778: 2773: 2768: 2763: 2758: 2753: 2748: 2746:Neutral theory 2743: 2738: 2733: 2731:Native species 2724: 2719: 2714: 2709: 2704: 2699: 2694: 2689: 2684: 2678: 2676: 2672: 2671: 2669: 2668: 2663: 2662: 2661: 2656: 2646: 2641: 2636: 2631: 2626: 2621: 2616: 2611: 2606: 2604:Overpopulation 2601: 2596: 2591: 2586: 2581: 2576: 2571: 2566: 2561: 2556: 2550: 2548: 2540: 2539: 2529: 2527: 2526: 2519: 2512: 2504: 2495: 2494: 2492: 2491: 2486: 2481: 2476: 2471: 2466: 2461: 2456: 2450: 2448: 2442: 2441: 2439: 2438: 2433: 2428: 2423: 2418: 2413: 2411:Nutrient cycle 2408: 2403: 2401:Feeding frenzy 2398: 2393: 2388: 2383: 2381:Energy quality 2378: 2373: 2368: 2363: 2358: 2353: 2348: 2343: 2341:Cascade effect 2338: 2333: 2327: 2325: 2321: 2320: 2318: 2317: 2316: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2275: 2270: 2265: 2260: 2254: 2252: 2248: 2247: 2245: 2244: 2239: 2234: 2229: 2224: 2219: 2213: 2211: 2205: 2204: 2202: 2201: 2196: 2191: 2186: 2184:Microbial loop 2181: 2176: 2171: 2166: 2161: 2156: 2151: 2149:Lithoautotroph 2146: 2141: 2135: 2133: 2131:Microorganisms 2127: 2126: 2124: 2123: 2118: 2113: 2108: 2102: 2100: 2094: 2093: 2091: 2090: 2088:Prey switching 2085: 2080: 2075: 2070: 2065: 2060: 2055: 2050: 2045: 2040: 2035: 2030: 2025: 2020: 2015: 2010: 2005: 1999: 1997: 1991: 1990: 1988: 1987: 1982: 1977: 1972: 1967: 1965:Photosynthesis 1962: 1957: 1952: 1947: 1942: 1937: 1932: 1927: 1922: 1920:Chemosynthesis 1917: 1911: 1909: 1903: 1902: 1900: 1899: 1894: 1889: 1884: 1879: 1874: 1869: 1864: 1859: 1854: 1849: 1844: 1839: 1834: 1829: 1824: 1819: 1814: 1812:Abiotic stress 1809: 1803: 1801: 1797: 1796: 1782: 1780: 1779: 1772: 1765: 1757: 1751: 1750: 1745: 1738: 1737:External links 1735: 1733: 1732: 1703: 1689: 1668:(4): 720–730. 1648: 1633: 1618: 1575: 1554: 1547: 1517: 1480:(100): 81–94. 1460: 1403: 1392:Ecology Center 1378: 1366: 1323: 1284: 1277: 1252: 1246: 1220: 1163: 1103: 1089: 1080: 1066: 1017: 959: 918: 893: 891: 888: 887: 886: 881: 876: 871: 866: 861: 854: 851: 850: 849: 846: 839: 837: 834: 827: 825: 822: 815: 803: 800: 784: 781: 743:If this ratio 741: 740: 722: 719: 716: 708: 705: 702: 682: 679: 661: 658: 619: 616: 567:, also called 561: 558: 550:regional range 541: 538: 504:river corridor 494: 493: 444: 442: 435: 429: 426: 421: 418: 410:transportation 378: 375: 363: 362: 359: 349: 341: 338: 321: 318: 311: 310: 303:pre-1950 range 295: 284: 277:breeding range 273: 258: 196:Main article: 193: 190: 128: 127: 42: 40: 33: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3359: 3348: 3345: 3343: 3340: 3338: 3335: 3333: 3330: 3328: 3325: 3324: 3322: 3309: 3304: 3298: 3295: 3293: 3292:Urban ecology 3290: 3288: 3285: 3283: 3280: 3278: 3275: 3273: 3270: 3268: 3265: 3263: 3260: 3258: 3255: 3253: 3250: 3248: 3245: 3243: 3240: 3238: 3235: 3233: 3230: 3228: 3225: 3223: 3220: 3218: 3215: 3213: 3210: 3208: 3205: 3203: 3200: 3198: 3195: 3193: 3190: 3188: 3185: 3184: 3182: 3178: 3172: 3169: 3167: 3164: 3162: 3159: 3157: 3154: 3152: 3151:Kleiber's law 3149: 3147: 3144: 3142: 3139: 3137: 3134: 3132: 3129: 3127: 3124: 3122: 3119: 3117: 3114: 3112: 3109: 3107: 3104: 3102: 3099: 3097: 3094: 3092: 3089: 3088: 3086: 3084: 3078: 3072: 3069: 3067: 3064: 3062: 3059: 3057: 3054: 3052: 3049: 3045: 3042: 3041: 3040: 3037: 3035: 3032: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3011: 3009: 3007: 3003: 2997: 2994: 2992: 2989: 2987: 2985: 2981: 2977: 2975: 2972: 2970: 2967: 2965: 2962: 2960: 2957: 2955: 2952: 2950: 2947: 2945: 2942: 2940: 2937: 2935: 2932: 2930: 2927: 2925: 2924:Foster's rule 2922: 2920: 2917: 2915: 2912: 2910: 2907: 2905: 2902: 2900: 2897: 2895: 2892: 2890: 2887: 2886: 2884: 2882: 2876: 2870: 2867: 2865: 2862: 2860: 2857: 2855: 2852: 2850: 2847: 2845: 2842: 2840: 2837: 2835: 2832: 2830: 2827: 2825: 2822: 2821: 2819: 2813: 2807: 2804: 2802: 2799: 2797: 2794: 2792: 2789: 2787: 2784: 2782: 2779: 2777: 2774: 2772: 2769: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2742: 2739: 2737: 2734: 2732: 2728: 2725: 2723: 2720: 2718: 2715: 2713: 2710: 2708: 2705: 2703: 2700: 2698: 2695: 2693: 2690: 2688: 2685: 2683: 2680: 2679: 2677: 2673: 2667: 2664: 2660: 2657: 2655: 2652: 2651: 2650: 2647: 2645: 2642: 2640: 2637: 2635: 2632: 2630: 2627: 2625: 2622: 2620: 2617: 2615: 2612: 2610: 2607: 2605: 2602: 2600: 2597: 2595: 2592: 2590: 2587: 2585: 2582: 2580: 2577: 2575: 2572: 2570: 2567: 2565: 2562: 2560: 2557: 2555: 2552: 2551: 2549: 2547: 2541: 2536: 2532: 2525: 2520: 2518: 2513: 2511: 2506: 2505: 2502: 2490: 2487: 2485: 2482: 2480: 2477: 2475: 2472: 2470: 2467: 2465: 2462: 2460: 2457: 2455: 2452: 2451: 2449: 2443: 2437: 2434: 2432: 2429: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2404: 2402: 2399: 2397: 2394: 2392: 2389: 2387: 2384: 2382: 2379: 2377: 2374: 2372: 2369: 2367: 2364: 2362: 2359: 2357: 2354: 2352: 2349: 2347: 2344: 2342: 2339: 2337: 2334: 2332: 2329: 2328: 2326: 2322: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2280: 2279: 2276: 2274: 2271: 2269: 2266: 2264: 2261: 2259: 2256: 2255: 2253: 2249: 2243: 2242:Trophic level 2240: 2238: 2235: 2233: 2230: 2228: 2225: 2223: 2220: 2218: 2215: 2214: 2212: 2210: 2206: 2200: 2199:Phage ecology 2197: 2195: 2192: 2190: 2189:Microbial mat 2187: 2185: 2182: 2180: 2177: 2175: 2172: 2170: 2167: 2165: 2162: 2160: 2157: 2155: 2152: 2150: 2147: 2145: 2144:Bacteriophage 2142: 2140: 2137: 2136: 2134: 2132: 2128: 2122: 2119: 2117: 2114: 2112: 2111:Decomposition 2109: 2107: 2104: 2103: 2101: 2099: 2095: 2089: 2086: 2084: 2081: 2079: 2076: 2074: 2071: 2069: 2066: 2064: 2061: 2059: 2058:Mesopredators 2056: 2054: 2051: 2049: 2046: 2044: 2041: 2039: 2036: 2034: 2031: 2029: 2026: 2024: 2021: 2019: 2016: 2014: 2011: 2009: 2006: 2004: 2003:Apex predator 2001: 2000: 1998: 1996: 1992: 1986: 1983: 1981: 1978: 1976: 1973: 1971: 1968: 1966: 1963: 1961: 1958: 1956: 1953: 1951: 1948: 1946: 1943: 1941: 1938: 1936: 1933: 1931: 1928: 1926: 1923: 1921: 1918: 1916: 1913: 1912: 1910: 1908: 1904: 1898: 1895: 1893: 1890: 1888: 1885: 1883: 1880: 1878: 1875: 1873: 1870: 1868: 1865: 1863: 1860: 1858: 1855: 1853: 1850: 1848: 1845: 1843: 1840: 1838: 1837:Biotic stress 1835: 1833: 1830: 1828: 1825: 1823: 1820: 1818: 1815: 1813: 1810: 1808: 1805: 1804: 1802: 1798: 1793: 1789: 1785: 1778: 1773: 1771: 1766: 1764: 1759: 1758: 1755: 1749: 1746: 1744: 1741: 1740: 1736: 1722:on 2009-04-14 1721: 1717: 1713: 1707: 1704: 1699: 1693: 1690: 1684: 1679: 1675: 1671: 1667: 1663: 1659: 1652: 1649: 1644: 1637: 1634: 1629: 1622: 1619: 1614: 1610: 1606: 1602: 1598: 1594: 1590: 1586: 1579: 1576: 1565: 1558: 1555: 1550: 1544: 1540: 1536: 1531: 1530: 1521: 1518: 1513: 1509: 1504: 1499: 1495: 1491: 1487: 1483: 1479: 1475: 1471: 1464: 1461: 1456: 1452: 1447: 1442: 1438: 1434: 1430: 1426: 1422: 1418: 1414: 1407: 1404: 1393: 1389: 1382: 1379: 1375: 1370: 1367: 1362: 1358: 1354: 1350: 1346: 1342: 1338: 1334: 1327: 1324: 1319: 1315: 1311: 1307: 1303: 1299: 1295: 1294:Lycaon pictus 1288: 1285: 1280: 1278:9780073050829 1274: 1269: 1268: 1259: 1257: 1253: 1249: 1247:9789401599566 1243: 1239: 1235: 1231: 1224: 1221: 1216: 1212: 1207: 1202: 1198: 1194: 1190: 1186: 1182: 1178: 1174: 1167: 1164: 1159: 1155: 1150: 1145: 1141: 1137: 1133: 1129: 1125: 1121: 1117: 1113: 1107: 1104: 1099: 1093: 1090: 1084: 1081: 1076: 1070: 1067: 1062: 1058: 1053: 1048: 1044: 1040: 1037:(2): 93–107. 1036: 1032: 1028: 1021: 1018: 1013: 1009: 1005: 1001: 997: 993: 989: 985: 982:(2): 135–41. 981: 977: 970: 963: 960: 955: 951: 946: 941: 937: 933: 929: 922: 919: 908: 904: 898: 895: 889: 885: 882: 880: 877: 875: 872: 870: 867: 865: 862: 860: 857: 856: 852: 843: 838: 831: 826: 819: 814: 812: 810: 801: 799: 795: 790: 782: 780: 776: 774: 770: 766: 760: 758: 754: 750: 746: 720: 717: 711:mean distance 703: 700: 693: 692: 691: 688: 680: 678: 676: 671: 668: 659: 657: 654: 653: 648: 644: 640: 639: 634: 633:great gerbils 629: 625: 617: 615: 612: 610: 607: 603: 599: 598: 597:Lycaon pictus 592: 590: 584: 582: 581:selfish herds 578: 574: 570: 566: 559: 557: 551: 546: 539: 537: 535: 531: 527: 522: 520: 516: 515:Sierra Nevada 511: 509: 505: 501: 500:coastal strip 490: 487: 479: 469: 465: 461: 455: 454: 450: 445:This section 443: 439: 434: 433: 427: 425: 419: 417: 415: 411: 407: 406:globalization 403: 399: 397: 393: 388: 383: 376: 374: 372: 366: 360: 357: 353: 350: 347: 346: 345: 339: 337: 335: 331: 327: 319: 317: 315: 308: 304: 300: 299:British range 296: 293: 289: 288:natural range 285: 282: 278: 274: 271: 267: 263: 259: 256: 252: 248: 244: 240: 236: 232: 231: 230: 227: 225: 221: 217: 213: 209: 205: 199: 191: 189: 187: 183: 179: 175: 171: 167: 163: 160: 156: 149: 146:, the common 145: 144: 139: 138:species range 134: 124: 121: 113: 102: 99: 95: 92: 88: 85: 81: 78: 74: 71: â€“  70: 66: 65:Find sources: 59: 55: 49: 48: 43:This article 41: 37: 32: 31: 19: 18:Natural range 3332:Biogeography 3277:Regime shift 3262:Macroecology 2983: 2979: 2919:Edge effects 2889:Biogeography 2834:Commensalism 2795: 2682:Biodiversity 2559:Allee effect 2298:kelp forests 2251:Example webs 2116:Detritivores 1955:Organotrophs 1935:Kinetotrophs 1887:Productivity 1724:. 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Index

Natural range

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"Species distribution"
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species range
Juniperus communis
juniper
taxon
species
dispersal
region of origin
density
Marginal distribution (biology)
biology
species
population
population density
endemic
indigenous
introduced
invasive

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