Optimal patch-leaving behaviour: a case study using the parasitoid Cotesia rubecula
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چکیده
منابع مشابه
Optimal patch-leaving behavior: A case study using the parasitoid <i>Cotesia rubecula</i>
1. Parasitoids are predicted to spend longer in patches with more hosts, but previous work on Cotesia rubecula (Marshall) has not upheld this prediction. Tests of theoretical predictions may be affected by the definition of patch leaving behavior, which is often ambiguous. 2. In this study whole plants were considered as patches and assumed that wasps move within patches by means of walking or ...
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The host specificity of Cotesia rubecula (Marshall) was examined through literature searches, behavioural and ecological observations, and host specificity tests of a South Australian population. The results led to the importation and testing of C. rubecula in quarantine in New Zealand where its specificity to the genus Pieris was confirmed. Introduction of the parasitoid was approved and the s...
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Natural enemies may go through genetic bottlenecks during the process of biological control introductions. Such bottlenecks are expected to be particularly detrimental in parasitoid Hymenoptera that exhibit complementary sex determination (CSD). CSD is associated with a severe form of inbreeding depression because homozygosity at one or multiple sex loci leads to the production of diploid males...
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Resources can be aggregated both within and between patches. In this article, we examine how aggregation at these different scales influences the behavior and performance of foragers. We developed an optimal foraging model of the foraging behavior of the parasitoid wasp Cotesia rubecula parasitizing the larvae of the cabbage butterfly Pieris rapae. The optimal behavior was found using stochasti...
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ژورنال
عنوان ژورنال: Journal of Animal Ecology
سال: 2001
ISSN: 0021-8790
DOI: 10.1046/j.1365-2656.2001.00530.x