Testing the Role of Habitat Isolation among Ecologically Divergent Gall Wasp Populations

<table>Mean (±SE) of relative host preference expressed by individual (A) males and (B) females in the interpopulation (<i>Q. geminata</i> × <i>Q. virginiana</i>) mating trials as a function of copulation success. The greater observed host preference of males in those mating trials that did not result in a copulation further support the role of habitat isolation as an important premating reproductive barrier among gall wasp populations.</table>

International Journal of Ecology

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Figure 3

Figure 3: Testing the Role of Habitat Isolation among Ecologically Divergent Gall Wasp Populations 