Metabolic cold adaptation contributes little to the interspecific variation in metabolic rates of 65 species of Drosophilidae.

Metabolic cold adaptation (MCA) is a controversial hypothesis suggesting that cold adapted species display an elevated metabolic rate (MR) compared to their warm climate relatives. Here we test for the presence of MCA in 65 species of drosophilid flies reared under common garden conditions. MR was measured at both 10 and 20°C for both sexes and data were… CONTINUE READING