SEASONAL DYNAMIC SHIFTS IN PATCH EXPLOITATION BY PARASITIC WASPS

被引：118

作者：

ROITBERG, BD

MANGEL, M

LALONDE, RG

ROITBERG, CA

VANALPHEN, JJM

VET, L

机构：

[1] Behavioural Ecology Research Group, Department of Biosciences, Simon Fraser University, Burnaby

[2] Zoology Department, Center For Population Biology, University of California, Davis

[3] Behavioural Ecology Research Group, Department of Biosciences, Simon Fraser University, Burnaby

[4] Department of Biosciences, Simon Fraser University, Burnaby

[5] Division of Ecology, Department of Population Biology, University of Leiden

[6] Department of Entomology, Agricultural University

[7] Zoology Department and Center for Population Biology, University of California, Davis

来源：

BEHAVIORAL ECOLOGY | 1992年 / 3卷 / 02期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1093/beheco/3.2.156

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

We developed and tested predictions of a dynamic life history model that is concerned with how temperature-zone parasitic wasps adjust patch residence time and tendency to superparasitize when expectation of life and habitat quality varies. The theory predicts that wasps with short life expectancy should continue to search longer and superparasitize more frequently than similar wasps with long life expectancy. Similarly, wasps with long life expectancy that forage in habitats where patches are already heavily exploited should continue to search longer and superparasitize more frequently than similar wasps foraging in habitats where patches are relatively unexploited. In contrast, the theory predicts that wasps with short life expectancy will be insensitive to habitat quality. We tested the predictions on Drosophila parasitoids (Leptopilina heterotoma) by (1) rearing wasps under fall and summer photoperiod (i.e., short versus long life expectancy) and (2) giving wasps foraging experience on different quality patches (i.e., exploited versus unexploited habitats). Results of the experiments corroborated our predictions. We discuss how parasitic wasp behavior can be shaped by globally predictable and locally unpredictable events.

引用

页码：156 / 165

页数：10

共 26 条

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