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317:, has a much broader distribution and is found on the South Rim of the Grand Canyon. The difference between North Rim and South Rim Abert's squirrels has given rise to the commonly held but incorrect assumption that the canyon itself acted as a barrier preventing gene flow between the two populations. However, modern Kaibab squirrels are descended from populations of Abert's squirrels that dispersed into the Grand Canyon area following the last Ice Age.
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As the climate warmed, ponderosa pine stands and the Abert's squirrels living there were limited to areas of high elevation like the Kaibab
Plateau. These isolated populations eventually became modern Kaibab squirrels and, as the climate cooled again and ponderosa pines once again grew at lower
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Kaibab squirrels usually have a black belly (which is sometimes gray), white tail, tufted ears and chestnut brown back. The tufts on the ears grow longer with age and may extend 1 to 2 inches (2.5 to 5.1 cm) above the ears in the winter, and may not be visible in the summer.
287:(especially an underground truffle), as well as the seeds, bark, and twigs of the trees where it makes its home. The Kaibab squirrel's most significant source of food is the seeds found within ponderosa pine cones. Young squirrels are born between April and August.
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The Kaibab squirrel lives in ponderosa pine forests, where it builds its nest out of twigs and pine needles. Kaibab squirrels, ponderosa pines, and the fungi which grow in the vicinity of the ponderosas exist in a
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515:"Evolutionary Genetics and Phylogeography of Tassel-Eared Squirrels (Sciurus aberti)" Trip Lamb, Thomas R. Jones and Peter J. Wettstein
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elevations, other Abert's squirrel subspecies returned to the Grand Canyon area, filling in their former niches on the South Rim.
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Woodhouse, S.W. (1853). "Description of a new species of
Sciurus".
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Proceedings of the
Academy of Natural Sciences of Philadelphia
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In the past the Kaibab squirrel was given species status (
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Kaibab squirrel at Grand Canyon
National Park North Rim
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369:"North Kaibab Plateau, Gateway to the Grand Canyon"
398:"Kaibab Plateau – North Rim National Scenic Byway"
294:), but it is now considered a subspecies of the
519:Vol. 78, No. 1 (Feb., 1997), pp. 117–133
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530:Photographs of Kaibab squirrels in the wild
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420:"Famous Kaibab White-Tailed Squirrel"
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305:The Kaibab squirrel is an example of
16:Subspecies of rodent found in Arizona
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715:Endemic rodents of the United States
231:not found anywhere else in the world
725:Natural history of the Grand Canyon
497:"Macroevolution: Species Formation"
730:Taxa named by Clinton Hart Merriam
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275:relationship. The squirrel eats
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218:and the northern section of
214:forests of the North Rim of
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554:Sciurus aberti kaibabensis
535:Kaibab squirrel on YouTube
216:Grand Canyon National Park
196:Sciurus aberti kaibabensis
174:Sciurus aberti kaibabensis
40:Grand Canyon National Park
735:Mammals described in 1904
235:National Natural Landmark
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51:Scientific classification
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720:Endemic fauna of Arizona
208:Southwest United States
466:Cite journal requires
400:. Arizona Scenic Roads
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220:Kaibab National Forest
156:S. a. kaibabensis
343:National Park Service
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200:tassel-eared squirrel
517:Journal of Mammalogy
311:geographic isolation
375:. February 16, 2012
292:Sciurus kaibabensis
224:Jacob Lake, Arizona
222:around the town of
309:occurring through
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266:A Kaibab squirrel.
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202:that lives in the
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682:Open Tree of Life
546:Taxon identifiers
339:"Kaibab squirrel"
229:This squirrel is
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300:Sciurus aberti
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212:ponderosa pine
204:Kaibab Plateau
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165:Trinomial name
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656:NatureServe
617:iNaturalist
502:October 26,
430:October 26,
404:October 26,
379:October 26,
373:Sierra Club
348:October 26,
241:Description
704:Categories
325:References
315:subspecies
307:evolution
273:symbiotic
136:Species:
118:Sciuridae
74:Kingdom:
68:Eukaryota
661:2.102215
648:12400080
569:Q1721379
563:Wikidata
114:Family:
108:Rodentia
98:Mammalia
88:Chordata
84:Phylum:
78:Animalia
64:Domain:
710:Sciurus
609:5706638
596:4465366
449:(110).
258:Ecology
206:in the
198:) is a
181:Merriam
129:Sciurus
124:Genus:
104:Order:
94:Class:
44:Arizona
687:866978
635:930412
622:119111
283:, and
277:acorns
183:, 1904
674:10006
583:5L3P7
285:fungi
281:fruit
669:NCBI
630:ITIS
604:GBIF
504:2013
472:help
432:2013
406:2013
381:2013
350:2013
190:The
643:MSW
591:EoL
578:CoL
302:).
38:In
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457:{{
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
