Thermal physiology of Amazonian lizards (Reptilia: Squamata)
| Autor: | Emerson Pontes, Fernanda P. Werneck, Juan C. Santos, Teresa C. S. Avila-Pires, Laurie J. Vitt, Gabriel Henrique de Oliveira Caetano, Guarino R. Colli, Carla M. Sette, William E. Magnusson, Donald B. Miles, Barry Sinervo, Luisa Maria Diele-Viegas |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Atmospheric Science Squamata Physiology Amazonian Acclimatization lcsh:Medicine Forests 01 natural sciences Geographical locations Body Temperature Medicine and Health Sciences Critical thermal maximum lcsh:Science Phylogeny Data Management Animal Management Climatology Animalss Multidisciplinary Ecology biology Phylogenetic tree Geography Temperature Eukaryota Agriculture Lizards Thermoregulation Classification Terrestrial Environments Squamates Heat Tolerance Phylogenetics Phylogeography Habitat Physiological Parameters Biogeography Vertebrates Warming Brazil Research Article Body Temperature Regulation Computer and Information Sciences Climate Change Zoology Species Difference 010603 evolutionary biology Temperature Stress Ecosystems 03 medical and health sciences Species Specificity Genetics Environmental Temperature Animals Evolutionary Systematics Ecosystem Controlled Study Forest Taxonomy Evolutionary Biology Animal Performance Population Biology Brasil Ecology and Environmental Sciences lcsh:R Organisms Biology and Life Sciences Reptiles South America biology.organism_classification Nonhuman 030104 developmental biology Amniotes Earth Sciences Lizard lcsh:Q People and places Population Genetics |
| Zdroj: | Repositório Institucional do INPA Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA PLoS ONE, Vol 13, Iss 3, p e0192834 (2018) PLoS ONE |
| Popis: | We summarize thermal-biology data of 69 species of Amazonian lizards, including mode of thermoregulation and field-active body temperatures (Tb). We also provide new data on preferred temperatures (Tpref), voluntary and thermal-tolerance ranges, and thermal-performance curves (TPC’s) for 27 species from nine sites in the Brazilian Amazonia. We tested for phylogenetic signal and pairwise correlations among thermal traits. We found that species generally categorized as thermoregulators have the highest mean values for all thermal traits, and broader ranges for Tb, critical thermal maximum (CTmax) and optimal (Topt) temperatures. Species generally categorized as thermoconformers have large ranges for Tpref, critical thermal minimum (CTmin), and minimum voluntary (VTmin) temperatures for performance. Despite these differences, our results show that all thermal characteristics overlap between both groups and suggest that Amazonian lizards do not fit into discrete thermoregulatory categories. The traits are all correlated, with the exceptions of (1) Topt, which does not correlate with CTmax, and (2) CTmin, and correlates only with Topt. Weak phylogenetic signals for Tb, Tpref and VTmin indicate that these characters may be shaped by local environmental conditions and influenced by phylogeny. We found that open-habitat species perform well under present environmental conditions, without experiencing detectable thermal stress from high environmental temperatures induced in lab experiments. For forest-dwelling lizards, we expect warming trends in Amazonia to induce thermal stress, as temperatures surpass the thermal tolerances for these species. © 2018 Diele-Viegas et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Databáze: | OpenAIRE |
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