Cited by 962Physiological and biochemical adaptationsAmphibian and Reptile BiologySpecies Distribution and Climate Change

Why tropical forest lizards are vulnerable to climate warming

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Huey, Raymond B., Deutsch, Curtis A., Tewksbury, Joshua J., Vitt, Laurie J., Hertz, Paul E., Álvarez Pérez, Héctor J., Garland, Theodore·2009·Proceedings of the Royal Society B: Biological Sciences

Abstract

Biological impacts of climate warming are predicted to increase with latitude, paralleling increases in warming. However, the magnitude of impacts depends not only on the degree of warming but also on the number of species at risk, their physiological sensitivity to warming and their options for behavioural and physiological compensation. Lizards are useful for evaluating risks of warming because their thermal biology is well studied. We conducted macrophysiological analyses of diurnal lizards from diverse latitudes plus focal species analyses of Puerto Rican Anolis and Sphaerodactyus . Although tropical lowland lizards live in environments that are warm all year, macrophysiological analyses indicate that some tropical lineages (thermoconformers that live in forests) are active at low body temperature and are intolerant of warm temperatures. Focal species analyses show that some tropical forest lizards were already experiencing stressful body temperatures in summer when studied several decades ago. Simulations suggest that warming will not only further depress their physiological performance in summer, but will also enable warm-adapted, open-habitat competitors and predators to invade forests. Forest lizards are key components of tropical ecosystems, but appear vulnerable to the cascading physiological and ecological effects of climate warming, even though rates of tropical warming may be relatively low.

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Crossref · 10.1098/rspb.2008.1957

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  • Predictions of tropical ectotherm vulnerability have been verified in a variety of tropical reptiles, amphibians, and invertebrates.

    “These predictions have been verified in a variety of tropical reptiles, amphibians, and invertebrates (4–8).”
  • There was a significant positive linear regression of the proportion of days per year when temperature equaled or exceeded 29 °C on MnMaxT at El Verde.

    “However, there was a significant positive linear regression of proportion of days per year when the temperature equaled or exceeded 29 °C on MnMaxT at El Verde (SI Appendix, Fig. S8K), suggesting that our measure reflects significant exposure to extremes rather than ephemeral spikes in temperature (6, 20).”
  • As ambient temperatures increase, thermal stress can lead to extinction by lowering performance, restricting activity time, and lessening food intake.

    “As ambient temperatures increase, thermal stress can lead to extinction by lowering performance, restricting activity time, and lessening food intake.”
  • This vulnerability results from lower critical thermal maxima than basking species, limited acclimation via thermoregulation, and reduced thermal safety margins.

    “This vulnerability results from lower critical thermal maxima than basking species, limited acclimation via thermoregulation, and reduced thermal safety margins.”
  • Huey et al. proposed that thermal-conforming lizards inhabiting shaded tropical forests should be especially vulnerable to climate warming.

    “Huey et al. (6) proposed that thermal-conforming lizards inhabiting shaded tropical forests should be especially vulnerable to climate warming.”

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Research works printed but not linked: 2

  1. Huey, R. B. 1982 Temperature, physiology, and the ecology of reptiles. In Biology of the Reptilia , vol. 12 (eds C. Gans & F. H. Pough), Physiology (C), pp. 25-91. London, UK: Academic Press.
  2. Travis, J. & Futuyma, D. J. 1993 Global change: lessons from and for evolutionary biology. In Biotic interactions and global change (eds P. M. Kareiva, J. G. Kingsolver & R. B. Huey), pp. 251-263. Sunderland, MA: Sinauer Associates.

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Authors
Huey, R. B., Deutsch, C. A., Tewksbury, J. J., Vitt, L. J., Hertz, P. E., Álvarez Pérez, H. J., & Garland, T.
Affiliations
  • University of Washington (US)
  • University of California, Los Angeles (US)
  • University of Oklahoma (US)
  • Barnard College (US)
  • Faculty of Education, University of Puerto RicoRio Piedras, PR 00931, USA
  • University of California, Riverside (US)
Corresponding author
Huey, Raymond B.
Venue
Proceedings of the Royal Society B: Biological Sciences
Published
2009-03-04
Volume
276
Issue
1664
Pages
1939-1948
ISSN
  • 0080-4649 (ISSN-L)
  • 0962-8452
  • 1471-2954
OpenAlex
W2168689121
Cited by
962
References
106
Citations by year
2026: 37 · 2025: 55 · 2024: 52 · 2023: 63 · 2022: 68 · 2021: 69 · 2020: 62 · 2019: 69 · 2018: 63 · 2017: 61 · 2016: 63 · 2015: 54 · 2014: 52 · 2013: 58 · 2012: 53
FWCI
39.44
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the Royal Society B Biological Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Science Foundation
Topics
  • Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
  • Physical Sciences › Environmental Science › Global and Planetary Change › Amphibian and Reptile Biology
  • Physical Sciences › Environmental Science › Ecological Modeling › Species Distribution and Climate Change
Keywords
global warming, thermal biology, Anolis, latitudinal gradient, body temperature, invasive species, physiological performance
MeSH terms
Acclimatization, Animals, Body Temperature, Geography, Lizards, Phylogeny, Puerto Rico, Temperature, Tropical Climate, Greenhouse Effect, Ecosystem

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