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The Significance of Clutch-Size in the Partridge (Perdix perdix)
Journal of Animal Ecology
Vol. 16, No. 1 (May, 1947), pp. 19-25
Published by: British Ecological Society
Stable URL: http://www.jstor.org/stable/1503
Page Count: 7
You can always find the topics here!Topics: Eggs, Partridges, Bird nesting, Hatching, Food availability, Birds, Hens, Predators, Predation, Wild birds
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1. The first laying of the partridge (Perdix perdix) in England varies from 10 to 20 eggs, averaging 14.6. Late layings are smaller. 2. There are annual differences in the average size of first layings. 3. Average clutch-size is greater in northern and eastern Europe than in England. 4. Clutch-size is not limited by potential egg-production. 5. Hatching success is equal in clutches of between 8 and at least 20 eggs. 6. Clutch-size is considered to be selected through the food available for the brood and a method of proving this is suggested.
Journal of Animal Ecology © 1947 British Ecological Society