The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
A Framework for Elucidating the Temperature Dependence of Fitness
Abstract
Climate warming is predicted to cause large-scale extinctions, particularly of ectothermic species. A striking difference between tropical and temperate ectotherms is that tropical species experience a mean habitat temperature that is closer to the temperature at which fitness is maximized (T(opt)) and an upper temperature limit for survival (T(max)) that is closer to T(opt) than do temperate species. Thus, even a small increase in environmental temperature could put tropical ectotherms at high risk of extinction, whereas temperate ectotherms have a wider temperature cushion. Although this pattern is widely observed, the mechanisms that produce it are not well understood. Here we develop a mathematical framework to partition the temperature response of fitness into its components (fecundity, mortality, and development) and test model predictions with data for insects. We find that fitness declines at high temperatures because the temperature responses of fecundity and mortality act in opposite ways: fecundity decreases with temperature when temperatures exceed the optimal range, whereas mortality continues to increase. The proximity of T(opt) to T(max) depends on how the temperature response of development mediates the interaction between fecundity and mortality. When development is highly temperature sensitive, mortality exceeds reproduction only after fecundity has started to decline with temperature, which causes fitness to decline rapidly to zero when temperatures exceed T(opt). The model correctly predicts empirically observed fitness-temperature relationships in insects from different latitudes. It also suggests explanations for the widely reported phenological shifts in many ectotherms and the latitudinal differences in fitness responses.
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Ecological responses to recent climate change.
Walther, G.-R., Post, E., Convey, P., Menzel, A., Parmesan, C., Beebee, T. J. C., Fromentin, J.-M., Hoegh-Guldberg, O., & Bairlein, F. (2002) · Nature · doi:10.1038/416389a · Cited by 9,975
Ecological and Evolutionary Responses to Recent Climate Change
Parmesan, C. (2006) · Annual Review of Ecology, Evolution, and Systematics · doi:10.1146/annurev.ecolsys.37.091305.110100 · Cited by 8,652
Fingerprints of global warming on wild animals and plants
Root, T. L., Price, J. T., Hall, K. R., Schneider, S. H., Rosenzweig, C., & Pounds, J. A. (2003) · Nature · doi:10.1038/nature01333 · Cited by 4,774
Impacts of climate warming on terrestrial ectotherms across latitude
Deutsch, C. A., Tewksbury, J. J., Huey, R. B., Sheldon, K. S., Ghalambor, C. K., Haak, D. C., & Martin, P. R. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0709472105 · Cited by 3,840
Effects of Size and Temperature on Metabolic Rate
Gillooly, J. F., Brown, J. H., West, G. B., Savage, V. M., & Charnov, E. L. (2001) · Science · doi:10.1126/science.1061967 · Cited by 3,810
Self-citationErosion of Lizard Diversity by Climate Change and Altered Thermal Niches
Sinervo, B., Méndez-de-la-Cruz, F., Miles, D. B., Heulin, B., Bastiaans, E., Villagrán-Santa Cruz, M., Lara-Resendiz, R., Martínez-Méndez, N., Calderón-Espinosa, M. L., Meza-Lázaro, R. N., et al. (2010) · Science · doi:10.1126/science.1184695 · Cited by 1,902
Life History Invariants: Some Explorations of Symmetry in Evolutionary Ecology
Charnov, E. L. (1993) · doi:10.1093/oso/9780198540724.001.0001 · Cited by 1,254
Why tropical forest lizards are vulnerable to climate warming
Huey, R. B., Deutsch, C. A., Tewksbury, J. J., Vitt, L. J., Hertz, P. E., Álvarez Pérez, H. J., & Garland, T. (2009) · Proceedings of the Royal Society B: Biological Sciences · doi:10.1098/rspb.2008.1957 · Cited by 962
A proximate model for thermal tolerance in ectotherms
Van Der Have, T. M. (2002) · Oikos · doi:10.1034/j.1600-0706.2002.980115.x · Cited by 110
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Metadata
- Authors
- Amarasekare, P., & Savage, V.
- Venue
- The American Naturalist
- Publisher
- University of Chicago Press
- Published
- 2012-02
- Volume
- 179
- Issue
- 2
- Pages
- 178-191
- ISSN
- 0003-0147 (ISSN-L)
- 1537-5323
- OpenAlex
- W2096139847
- Cited by
- 234
- References
- 9
- FWCI
- 14.19
- Type
- journal article
- Language
- en
- Open access
- closed
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