Literaturdatenbank
Literaturdatenbank |
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Refsnider, J. M., Bodensteiner, B. L., Reneker, J. L., & Janzen, F. J. (2013). Experimental field studies of species' responses to climate change: Challenges and future directions. Biological Conservation, 16(5), 498–499.
Added by: Admin (06 Jan 2014 18:25:13 UTC) |
| Resource type: Journal Article DOI: 10.1111/acv.12034 BibTeX citation key: Refsnider2013a View all bibliographic details  |
Categories: General Keywords: Fortpflanzung - reproduction, Habitat - habitat, Schildkröten - turtles + tortoises Creators: Bodensteiner, Janzen, Refsnider, Reneker Collection: Biological Conservation |
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| Abstract |
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One advantage of our experimental approach, which used natural nests under field conditions, was that nests experienced natural incubation regimes in terms of both mean and daily variation in temperature. As Georges (2013) points out, daily variation in nest temperature is as important as mean temperature in determining offspring sex ratios (Georges, 1989), and studies are increasingly finding effects of fluctuating temperatures during embryonic development on later life stages (e.g. Mullins & Janzen, 2006; Les, Paitz & Bowden, 2007; Refsnider, 2013). Moreover, whether temperature variation occurs near the upper or lower thermal limit differentially affects offspring survival (Les, Paitz & Bowden, 2009) and sex ratio (Neuwald & Valenzuela, 2011). These complications emphasize the importance of incorporating natural levels of temperature fluctuations in incubation experiments involving species with TSD. Furthermore, understanding how juvenile performance (particularly as a result of incubation temperature during development) relates to fitness in adults would enhance our ability to predict the phenotypes of later life stages from the performance of earlier ones (Refsnider, 2013; Schwanz, 2013).
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