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https://hdl.handle.net/1959.11/9113
Title: | Climatic adaptation of 'Drosophila buzzatii' populations in southeast Australia | Contributor(s): | Sarup, P (author); Sorensen, JG (author); Dimitrov, K (author); Barker, J S F (author)![]() |
Publication Date: | 2006 | DOI: | 10.1038/sj.hdy.6800828 | Handle Link: | https://hdl.handle.net/1959.11/9113 | Abstract: | Variation in 19 traits possibly relevant for thermal adaptation was studied in 11 populations of 'Drosophila buzzatii' collected in southeast Australia. Using stepwise multiple regression, the variation was compared to variation in geographic coordinates and to a set of climatic variables estimated for each collection site. For 13 of the traits, a significant part of the variation was explained by climatic variables and/or geographic coordinates, suggesting directional selection for adaptation to the environment in the majority of traits studied. In 10 of the traits, both geographic coordinates and climatic variables explained significant proportions of the variation, with R² ranging from 0.075 to 0.58. Although larvae, pupae and adults of 'D. buzzatii' share a common habitat, the measured traits were not correlated across life stages and gender. Also, there seemed to be special conditions in marginal populations near species borders, giving rise to nonlinear relations with latitude. Climate apparently does influence the adaptive evolution of the traits studied, but they also are affected by other factors that vary with latitude, longitude and distance to coast. These results highlight the complex challenges imposed by the environment on the adaptive process. | Publication Type: | Journal Article | Source of Publication: | Heredity, 96(6), p. 479-486 | Publisher: | Nature Publishing Group | Place of Publication: | United Kingdom | ISSN: | 1365-2540 0018-067X |
Fields of Research (FoR) 2008: | 060411 Population, Ecological and Evolutionary Genetics | Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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