From simulated data on three populations, I calculate different measures of “reproductive success”: clutch size, egg success (the proportion of eggs that produce young), nest success (the proportion of clutches that produce young), and the annual reproductive success per female in terms of both number of broods and number of young reared successfully during a breeding season. These measures of success are not correlated. Differences in egg success or nest success do not necessarily translate into differences in annual reproductive success, and differences in annual reproductive success do not necessarily translate into evolutionary success.
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1 May 2000
MEASURING ANNUAL REPRODUCTIVE SUCCESS IN BIRDS
Bertram G. Murray Jr.
The Condor
Vol. 102 • No. 2
May 2000
Vol. 102 • No. 2
May 2000
broods
clutch size
clutch size equation
egg success
nest success