Evolution of clutch size in birds: adaptive variation in relation to territory quality.
نویسنده
چکیده
Reproductive output from enlarged or reduced magpie broods showed that each female generally lays a clutch of optimal size. This size varies considerably between females. Approximately 85 percent of the within-years variation in clutch size was associated with differences between territories. Colonial bird species, lacking individual foraging territories, have a smaller clutch size variation than territorial species.
منابع مشابه
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ورودعنوان ژورنال:
- Science
دوره 210 4474 شماره
صفحات -
تاریخ انتشار 1980