Altitudinal clinal variation in wing size and shape in African Drosophila melanogaster: one cline or many?

Abstract excerpt

Geographical patterns of morphological variation have been useful in addressing hypotheses about environmental adaptation. In particular, latitudinal clines in phenotypes have been studied in a number of Drosophila species. Some environmental conditions along latitudinal clines-for example, temperature-also vary along altitudinal clines, but these have been studied infrequently and it remains unclear whether...

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