ADAPTIVE VARIATION IN HOST-SELECTION BEHAVIOR OF ASOBARA-TABIDA, A PARASITOID OF DROSOPHILA LARVAE
ADAPTIVE VARIATION IN HOST-SELECTION BEHAVIOR OF ASOBARA-TABIDA, A PARASITOID OF DROSOPHILA LARVAE
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DOI：
10.2307/2390097
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发表时间：
1995-02-01
影响因子：
5.2
通讯作者：
NAJEM, RW
中科院分区：
文献类型：
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作者：
KRAAIJEVELD, AR;NOWEE, B;NAJEM, RW
1.灰腹圆腹茧蜂是果蝇幼虫在发酵底物中广泛寄生的一种寄生蜂.在其地理范围内，D. subobscura幼虫的存活率较高，且相当稳定;黑腹幼虫的个体差异较大.当不同品系的雌虫在两种寄主之间进行选择时，对D.幼虫在两种宿主中存活概率的差异。雌虫的寄主选择行为符合最优觅食模型的预测.生存概率D.黑腹果蝇对温度也有依赖性，寄主选择行为似乎也受温度的影响.因此，A. tabida是一种在遗传差异之上具有表型可塑性的性状。
1. The braconid Asobara tabida is a widespread parasitoid of Drosophila larvae in fermenting substrates.2. Across its geographic range, survival probability in D. subobscura larvae is high and fairly constant; survival probability in D. melanogaster larvae shows much variation.3. When females of different strains are offered a choice between larvae of the two host species, the degree of preference for D. subobscura larvae is linked to the difference in survival probability in the two host species.4. Host selection behaviour of the females matches the predictions made by an optimal foraging model.5. Survival probability in D. melanogaster also depends on temperature and host selection behaviour appears to be influenced by temperature as well.6. It is concluded that host selection behaviour of A. tabida is a trait with phenotypic plasticity on top of genetic differences.