作者: D. S. SMITH , J. K. BAILEY , S. M. SHUSTER , T. G. WHITHAM
DOI: 10.1111/J.1420-9101.2010.02178.X
关键词:
摘要: Genetic variation in plants is known to influence arthropod assemblages and species interactions. However, these influences may be contingent upon local environmental conditions. Here, we examine how plant genotype-based trophic interactions patterns of natural selection change across environments. Studying the cottonwood tree, Populus angustifolia, galling aphid, Pemphigus betae its avian predators, used three common gardens an gradient effects genotype on gall abundance, size, aphid fecundity predation rate galls. Three emerged: (i) explained abundance predation, (ii) G×E fecundity, environment (iii) size changed from directional stabilizing