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Observations on the Ecology of the Tassel-Eared Squirrel
R. C. Farentinos
The Journal of Wildlife Management
Vol. 36, No. 4 (Oct., 1972), pp. 1234-1239
Stable URL: http://www.jstor.org/stable/3799253
Page Count: 6
You can always find the topics here!Topics: Squirrels, Juveniles, Female animals, Mammals, Population density, Melanosis, Mating behavior, Age distribution, Sex ratio, Testes
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Data on the sex and age distribution, population density, and frequency of melanism were obtained on a tassel-eared squirrel (Sciurus aberti ferreus) population in northern Colorado from December 1969 through May 1971. The sex ratio was unbalanced, with a preponderance of males. By the end of the study, the age structure had shifted toward a younger population, reflecting a successful spring (1970) breeding season. Density of the population, although subject to seasonal fluctuations, remained relatively stable over a 1-year period. The ratio for coat color polymorphism in the population was 56.7 percent black color phase and 43.3 percent gray color phase. Observations on reproduction, longevity, movements, and predation are also presented and discussed.
The Journal of Wildlife Management © 1972 Wiley