Vertical differentiation in tropical forest butterflies: a novel mechanism generating insect diversity?
| Autor: | Matthew L. Forister, James A. Fordyce, Zachariah Gompert, Katherine L. Bell, Phil DeVries, Chris C. Nice |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Canopy media_common.quotation_subject Population Insect Biology Forests 010603 evolutionary biology 01 natural sciences Trees 03 medical and health sciences Animals education Ecosystem 030304 developmental biology media_common 0303 health sciences Tree canopy education.field_of_study Tropical Climate Evolutionary Biology Ecology Tropics Understory Agricultural and Biological Sciences (miscellaneous) Biological Evolution Habitat Butterfly Ecuador General Agricultural and Biological Sciences Butterflies |
| Zdroj: | Biology letters. 15(1) |
| ISSN: | 1744-957X |
| Popis: | Many tropical fruit-feeding nymphalid butterflies are associated with either the forest canopy or the understorey; however, the exceptions offer insights into the origins of tropical diversity. As it occurs in both habitats of tropical forests in Ecuador and Peru,Archaeoprepona demophonis one such exception. We compared patterns of occurrence ofA. demophonin the canopy and understorey and population genomic variation for evidence of ecological and genetic differentiation between habitats. We found that butterfly occurrences in the canopy were largely uncorrelated with occurrences in the understorey at both localities, indicating independent demographic patterns in the two habitats. We also documented modest, significant genome-level differentiation at both localities. Genetic differentiation between habitat types (separated by approx. 20 m in elevation) was comparable to levels of differentiation between sampling locations (approx. 1500 km). We conclude that canopy and understorey populations ofA. demophonrepresent incipient independent evolutionary units. These findings support the hypothesis that divergence between canopy and understorey-associated populations might be a mechanism generating insect diversity in the tropics. |
| Databáze: | OpenAIRE |
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