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Population dynamics of large herbivores: variable recruitment with constant adult survival
February 1998
February 1998
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Abstract
Recent long-term studies of population ecology of large herbivorous mammals suggest
that survival of prime-aged females varies little from year to year and across populations.
Juvenile survival, on the other hand, varies considerably from year to year. The pattern
of high and stable adult survival and variable juvenile survival is observed in contrasting
environments, independently of the main proximal sources of mortality and regardless
of whether mortality is stochastic or density-dependent. High yearly variability in
juvenile survival may play a predominant role in population dynamics.