Parasite removal and its impact on litter size and body condition in Columbian ground squirrels (Spermophilus columbianus)
نویسندگان
چکیده
منابع مشابه
Parasite removal and its impact on litter size and body condition in Columbian ground squirrels (Spermophilus columbianus).
The current interest in studies of parasite-host relationships is focusing on the impact of parasites on mate choice, sexual selection and individual fitness. While most studies have been done on birds and fishes, little is known about the interactions between parasites and reproductive success in mammals. In this study, I experimentally removed ectoparasites (mainly fleas) from some female Col...
متن کاملThe relative importance of global and local landmarks in navigation by Columbian ground squirrels (Spermophilus columbianus).
In order to survive, small burrowing mammals need to remember the locations of escape burrows. Therefore, it is important to know what types of landmarks are used to aid navigation in the wild. The author tested the ability of free-ranging Columbian ground squirrels (Spermophilus columbianus) to locate escape burrows when local (e.g., vegetation pattern, local relief), global (e.g., forest edge...
متن کاملMating order and reproductive success in male Columbian ground squirrels (Urocitellus columbianus)
Shirley Raveh, Dik Heg, F. Stephen Dobson, David W. Coltman, Jamieson C. Gorrell, Adele Balmer, and Peter Neuhaus University of Neuchâtel, Institute of Biology, Eco-Ethology, Rue Emile-Argand 11, Case postale 158, 2009 Neuchâtel, Switzerland, Department of Behavioural Ecology, University of Bern, Wohlenstr. 50a, 3032 Hinterkappelen, Switzerland, Groupe d’Ecologie Comportementale, Centre d’Ecolo...
متن کاملKin selection in Columbian ground squirrels (Urocitellus columbianus): littermate kin provide individual fitness benefits.
Since W. D. Hamilton's seminal work on the evolution of sociality, a large body of research has accumulated on how kin selection might explain the evolution of cooperation in many group-living species. Our study examined the evolutionary basis of philopatry and cooperation; specifically, whether individuals benefit from the presence of close kin. We applied an individual fitness approach to a 1...
متن کاملEnvironmental influences on spatial and temporal patterns of body-size variation in California ground squirrels (Spermophilus beecheyi)
Change in body size across geographical and temporal scales is a common way in which species, particularly mammals, respond to environmental variation (Dayan et al., 1991; Hadly, 1997; Ashton et al., 2000; Meiri & Dayan, 2003; Smith & Betancourt, 2006). Numerous studies have identified factors that influence geographical variation in body size within species, mainly focusing on climatic variabl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2003
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rsbl.2003.0073