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Birds as Predators on the Brood of Polybia Wasps (Hymenoptera: Vespidae: Polistinae) in a Costa Rican Deciduous Forest
Donald M. Windsor
Vol. 8, No. 2 (Jun., 1976), pp. 111-116
Published by: Association for Tropical Biology and Conservation
Stable URL: http://www.jstor.org/stable/2989631
Page Count: 6
You can always find the topics here!Topics: Bird nesting, Ants, Predators, Predation, Dry seasons, Insect colonies, Species, Rainy seasons, Insect nests, Vegetation
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The carton nests of the polistine wasps, Polybia occidentalis and P. barbouri, are frequently destroyed by predators feeding on wasp brood in northwestern Costa Rica. The remains of these nests and the signs left by the predators closely matched those observed after several nests were destroyed by the gray-headed kite, Leptodon cayanensis. The frequency of bird predation appeared lowest during the wet season, increased through the dry season, and reached a peak of 50 percent nest destruction in May 1973. In contrast to observations from wetter tropical habitats, ants appear to be a minor source of nest destruction for highly social wasps in a lowland deciduous forest-savanna habitat.
Biotropica © 1976 Association for Tropical Biology and Conservation