Constraints on the evolution of host choice by phytophagous insects

被引:16
作者
Carriere, Y [1 ]
机构
[1] Univ Laval, Dept Phytol, Ctr Rech & Hort, Quebec City, PQ G1K 7P4, Canada
关键词
D O I
10.2307/3546984
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
An important question for the evolution of host specialization in insect herbivores concerns why evolutionary changes in host choice mainly affect specificity in some species and the rank order of preference in others. A qualitative model is developed in which evolutionary change in specificity (and conservatism of the rank order of preference) results from functional and genetic integration between life history and behavioral traits. Conversely, another model proposes that a lack of such functional and genetic integration allows the expression of a potential tradeoff between the number of host used and the ability to detect or recognize them, which ultimately favors evolutionarily labile rank order of preference. Quantitative and population genetic approaches are appropriate to test both models.
引用
收藏
页码:401 / 406
页数:6
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