Table 4: Studies presenting data consistent with habitat avoidance alleles causing problems in hybrids. Each cross-generated hybrids displaying reduced response relative to parents in habitat choice. Host plant or locality information is in parentheses.

TaxonHybrid crossReduced hybrid responseReference

Rhagoletis fruit fliesR. pomonella (apple) × R. pomonella (haw)Upwind flight to host odor[82]
Rhagoletis fruit fliesR. pomonella (apple) × R. nr. pomonella (dogwood)Upwind flight to host odor[82]
Rhagoletis fruit fliesR. pomonella (haw) × R. nr. pomonella (dogwood)Upwind flight to host odor[82]
Rhagoletis fruit fliesR. pomonella (apple) × R. mendax (blueberry)Electroantennogram to fruit odor[43]
Neochlamisus leaf beetlesN. bebbianae (maple) × N. bebbianae (willow)Time spent on foraging on parental host plantsEgan and Funk, unpubl.; [83]
Leptopilina parasitoidsL. boulardi (Nasrallah) × L. boulardi (Brazzaville)Probing response to fruit odor1[84]

1 Only in one direction of the F1 hybrid cross (Nasrallah female × Brazzaville male).