Temperature-dependent sex determination and global change: are some species at greater risk?
| Autor: | Jean-Michel Guillon, Vincent Hulin, Virginie Delmas, Matthew H. Godfrey, Marc Girondot |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Greenhouse Effect
Extinction Temperature-dependent sex determination Ecology Range (biology) Temperature Climate change Global change Sex Determination Processes Biology Models Biological Turtles Animal science Species Specificity Animals Sex Determination Process Sex Ratio Ecology Evolution Behavior and Systematics Sex ratio Ovum Egg incubation |
| Zdroj: | Oecologia. 160:493-506 |
| ISSN: | 1432-1939 0029-8549 |
| Popis: | In species with temperature-dependent sex determination (TSD), global climate change may result in a strong sex ratio bias that could lead to extinction. The relationship between sex ratio and egg incubation at constant temperature in TSD species is characterized by two parameters: the pivotal temperature (P) and the transitional range of temperature that produces both sexes (TRT). Here, we show that the proportion of nests producing both sexes is positively correlated to the width of the TRT by a correlative approach from sex ratio data collected in the literature and by simulations of TSD using a mechanistic model. From our analyses, we predict that species with a larger TRT should be more likely to evolve in response to new thermal conditions, thus putting them at lower risk to global change. |
| Databáze: | OpenAIRE |
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