Physiological climatic limits in Drosophila: patterns and implications
Journal of Experimental Biology | COMPANY OF BIOLOGISTS LTD | Published : 2010
Physiological limits determine susceptibility to environmental changes, and can be assessed at the individual, population or species/lineage levels. Here I discuss these levels in Drosophila, and consider implications for determining species susceptibility to climate change. Limits at the individual level in Drosophila depend on experimental technique and on the context in which traits are evaluated. At the population level, evidence from selection experiments particularly involving Drosophila melanogaster indicate high levels of heritable variation and evolvability for coping with thermal stresses and aridity. An exception is resistance to high temperatures, which reaches a plateau in selec..View full abstract
A.A.H.'s research is supported by the Australian Research Council (Discovery, Federation Fellowship) and the Commonwealth Environment Research Facilities. He thanks Steven Chown and an anonymous reviewer for comments on the manuscript.