AERIAL PREY CACHING BY SOLITARY GROUND-NESTING WASPS - A TEST OF THE PREDATOR DEFENSE HYPOTHESIS

被引：8
|
作者：
ROSENHEIM, JA
机构：
[1] Department of Entomological Sciences, University of California, Berkeley, 94720, California
来源：
JOURNAL OF INSECT BEHAVIOR | 1990年 / 3卷 / 02期
关键词：
Ammophila; antipredator behavior; foraging behavior; Formica; Hymenoptera; prey caching;
D O I：
10.1007/BF01417915
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
Many solitary ground-nesting wasps in the families Pompilidae and Sphecidae excavate nests after capturing prey for provisions. These wasps generally cache their immobilized prey temporarily during nest excavation, frequently by suspending the prey in a plant ("aerial caching"). Here I test the hypothesis that aerial caching by Ammophila spp. wasps (Sphecidae) functions to reduce prey theft by generalist predators, Formica spp. ants. Foraging ants removed baits placed on the ground more rapidly than baits suspended in plants; mean half-lives for ground and aerial baits were 14.5 and 145.7 min, respectively (mean values for experiments 1-3). Ant foraging activity decreased during the midday. Ant interference with nesting activities of Ammophila spp. also decreased during the midday, paralleling observed fluctuations in ant foraging activity. © 1990 Plenum Publishing Corporation.
引用
收藏
页码：241 / 250
页数：10
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