Territoriality in adult female Columbian ground squirrels
- 1 May 1982
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Zoology
- Vol. 60 (5) , 1060-1066
- https://doi.org/10.1139/z82-146
Abstract
The spatial relationships among adult female Columbian ground squirrels (Spermophilus columbianus) were investigated through intensive behavioral observations at an isolated, high-density colony in southwestern Alberta in 1979 and 1980. Population size at spring emergence more than doubled during the study mainly through an increase in number of yearlings. Each adult female established a small home range and actively defended part of it as a territory. All intruding females were chased out, but exclusive use was not achieved. Territorial behavior increased after breeding, declined during late gestation, peaked during lactation, and decreased again after juveniles emerged. The adaptive significance of female territoriality seems to be related mainly to protection of juveniles.This publication has 12 references indexed in Scilit:
- Weight in relation to sex, age, and season in Columbian ground squirrels (Sciuridae: Rodentia)Canadian Journal of Zoology, 1981
- Litter Size in Columbian Ground Squirrels (Spermophilus columbianus)Journal of Mammalogy, 1980
- The Theory of Habitat Selection: Examined and Extended Using Pemphigus AphidsThe American Naturalist, 1980
- Spatial relationships and social organization of adult Richardson's ground squirrelsCanadian Journal of Zoology, 1979
- Territoriality and dominance in male Columbian ground squirrels (Spermophilus columbianus)Canadian Journal of Zoology, 1978
- Social system of round-tailed ground squirrelsAnimal Behaviour, 1977
- On Territoriality in Ungulates and an Evolutionary ModelThe Quarterly Review of Biology, 1977
- The behaviour of California ground squirrelsAnimal Behaviour, 1977
- Behaviour in a population of Columbian ground squirrels, Spermophilus columbianus columbianusAnimal Behaviour, 1976
- Socioecology of Marmots: Female Reproductive StrategiesEcology, 1976