Courtney S P
Department of Zoology, University of Liverpool, P.O. Box 147, Liverpool, UK.
Oecologia. 1983 Sep;59(2-3):317-321. doi: 10.1007/BF00378856.
An earlier model of hostplant exploitation by insects (Courtney 1982b) fails to take account of differences between strategists in search efficiencies. Modifications which accommodate such differences are presented which increase the explanatory power of the model. Some novel deductions for insect-host coevolution arise. Hostplants may be under selection for chemical crypsis when the insect identifies the host by a positive chemical stimulus; by crypsis, a hostplant may increase the 'handling time' of females searching for oviposition sites. Contrary to earlier predictions, the evolution of a monophagous relationship is possible even when alternative hosts are present.
昆虫利用寄主植物的早期模型（考特尼，1982b）没有考虑到不同策略者在搜索效率上的差异。本文提出了适应这些差异的修正方法，从而提高了该模型的解释力。由此得出了一些关于昆虫与寄主共同进化的新推论。当昆虫通过正向化学刺激识别寄主时，寄主植物可能会因化学隐蔽而受到选择；通过隐蔽，寄主植物可能会增加雌性寻找产卵地点的“处理时间”。与早期预测相反，即使存在替代寄主，单食性关系的进化也是可能的。
