摘要: Surveys of butterfly and moth diversity in tropical forest fragments suggest that nocturnality confers a dispersal, possibly survival, advantage. The faunas smaller were depauperate; contrast, the species richness nocturnal moths was similar all even pasture. lack correlation between among (r2 = 0.005) is best explained by movements at night when ambient conditions pasture are most similar; butterflies face substantial daytime temperature, humidity, solar radiation barriers. This interpretation supported information on birds, beetles, bats.