Patterns of reproductive effort in male ungulates
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چکیده
منابع مشابه
Patterns of reproductive effort in male ungulates
In ungulates, males and females have contrasting life histories, as usually only the females raise the young. How reproductive effort in males varies with individual level and population level characteristics has received little attention in the literature. Using published information on direct (weight loss during the rut) and indirect (rutrelated changes in activity budgets, fighting frequency...
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Age- and density-dependent reproductive effort in male red deer.
Reproductive effort in female ungulates originates from gestation and lactation and has been studied extensively; however, no comparable studies of reproductive effort in males (due to fighting for access to mates) have, to our knowledge, previously been reported. Here, we report on weight loss of male red deer during the annual mating season--a direct measure of male reproductive effort (or so...
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The distinctive features of reproduction in squirrels are the lack of allometric influences on the duration of reproductive investment; the strong allometric influences on offspring mass; and a trade-off between number and size of young, suggesting an important developmental component to reproduction. Lengths of gestation and lactation do not vary with body size but neonatal and weaning mass do...
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ژورنال
عنوان ژورنال: Journal of Zoology
سال: 2004
ISSN: 0952-8369,1469-7998
DOI: 10.1017/s0952836904005618