Premium
Home range characteristics and correlates in tree squirrels
Author(s) -
DON B. A. C.
Publication year - 1983
Publication title -
mammal review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.574
H-Index - 76
eISSN - 1365-2907
pISSN - 0305-1838
DOI - 10.1111/j.1365-2907.1983.tb00273.x
Subject(s) - sciurus , range (aeronautics) , ecology , home range , sciurus carolinensis , population , biology , geography , resource (disambiguation) , demography , habitat , sociology , computer network , materials science , computer science , composite material
Home range patterns of squirrels in the genera Sciurus and Tamiasciurus are reviewed. Emphasis is placed on the need to use analytical techniques which are appropriate to the questions of interest, and certain weaknesses in published studies are outlined. Variation in home range size between different species, populations of the same species and individuals of the same population is discussed in relation to ecological theory and the biology of tree squirrels. Larger species do not necessarily have larger home ranges. There is an inverse relationship between home range size and population density, but its interpretation is not clear in the absence of experimental studies. Differential utilization of space within the home range is considered to be a common pattern, although it is rarely explicitly described in tree squirrel studies. In general, species of the genus Tamiasciurus defend exclusive territories, whilst those of the genus Sciurus do not. Explanations for these patterns are discussed in terms of ‘economic defendability’ and resource heterogeneity. Problems for future study are suggested.