Abstract:Drosophila hydei is more abundant under colder and drier montane habitats in the western Himalayas as compared to Drosophila repleta, but the mechanistic basis of such climatic adaptation is largely unknown. In this study of two closely related Drosophila species, D. hydei and D. repleta, we examined the role of dehydration tolerance on survival under desiccating conditions. Water loss before succumbing to death (dehydration tolerance) is much higher in D. hydei (~74%) than D. repleta (~48%). Total surface lip… Show more
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