Lifetime selection on heritable life-history traits in a natural population of red squirrels . Evolution 57 : 2416 – 2423 .Réale D, Berteaux D, McAdam A.G, Boutin S. Lifetime selection on heritable life-history traits in a natural population of red squirrels. Evolution. 2003; 57 :2416...
WITHIN-SEX DENSITY DEPENDENCE AND POPULATION DYNAMICS OF RED SQUIRRELS .Social organization and dispersal of red squirrels (L.) differ between sexes, and intrasexual competition is intense. Therefore, we predicted that demographic parameters should be gender-specific: that is density-dependent factors ...
The potential importance of life history traits to population growth rates has been well explored theoretically but has rarely been documented in wild mammals. In this study we used 18 consecutive years of data from a population of North American red squirrels (Tamiasciurus hudsonicus) in the so...
Bulletin of the Institute of Zoology, Academia Sinica 31: 89 – 103 . i1545-1410-45-1-60-Yo2Yo, S.-P., W. E. Howard, and Y.-S. Lin. 1992 b. Population dynamics and regulation of red-bellied tree squirrels ( Callosciurus erythraeus ) in Japanese fir plantations...
South Carolina, constituent state of the U.S., one of the 13 original colonies. Shaped like an inverted triangle, it is bounded on the north by North Carolina, on the southeast by the Atlantic Ocean, and on the southwest by Georgia. Columbia, located in
Here, we used a long-term study of an individually marked population of North American red squirrels (Tamiasciurus hudsonicus) to look for evidence of (1) additive genetic variance in lifetime reproductive success and (2) fitness trade-offs between fitness components, such as male and female...
Manitoba, province of Canada, one of the Prairie Provinces, lying midway between the Atlantic and Pacific oceans. It is bounded to the north by Nunavut territory, to the northeast by Hudson Bay, to the east by Ontario, to the south by the U.S. states of
11and red foxes (Vulpes vulpes)12. Isolation of populations, coupled with small population sizes, will exacerbate the effects of genetic drift and can result in reduced genetic diversity within and greater genetic differentiation among urban populations, as has been shown for a number of species, ...
An interference model simulating the effects of competition between the grey and red squirrels was incorporated where both species occupied the same habitat blocks. The model was used to investigate the spread of grey squirrels and its impact on the distribution of red squirrels in Norfolk, UK, ...
New England is home to both red and gray squirrels. Known for their bushy tails, the rodents are a common sight in city parks and backyards, and people enjoy watching their frenetic movements. In this Tuesday, Sept. 11, 2018 photo a squirrel pauses before jumping onto a tire of a parked...