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Abstract

Sexual segregation occurs widely in ungulates, and four principal hypotheses (predation, forage quality, social preferences and activity patterning) have been suggested as possible explanations. However, no single explanation has so far received widespread support. We used data on the grouping...

Author(s)
Calhim, S.; Shi JianBin; Dunbar, R. I. M.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Behaviour, 2006, 72, 1, pp 31-41
Abstract

In 1978, 1979 and 1980 a total of 72 male lambs were castrated within 1 or 2 days of birth on St Kilda. They survived much longer than entire rams (marked as controls) and ewes of the cohorts the same years. The daily pattern of activity of castrates was similar to that of ewes rather than to that...

Author(s)
Jewell, P. A.
Citation
Journal of Zoology, 1997, 243, 3, pp 623-636