Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs
Abstract Environmental temperature affects physiological functions, representing a barrier for the range expansions of ectothermic species. To understand the link between thermal physiology and biogeography, a key question is whether among-species thermal sensitivity of metabolic rates is mechanisti...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-37637-z |
| _version_ | 1797836364899680256 |
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| author | Yuuki Y. Watanabe Nicholas L. Payne |
| author_facet | Yuuki Y. Watanabe Nicholas L. Payne |
| author_sort | Yuuki Y. Watanabe |
| collection | DOAJ |
| description | Abstract Environmental temperature affects physiological functions, representing a barrier for the range expansions of ectothermic species. To understand the link between thermal physiology and biogeography, a key question is whether among-species thermal sensitivity of metabolic rates is mechanistically constrained or buffered through physiological remodeling over evolutionary time. The former conception, the Universal Temperature Dependence hypothesis, predicts similar among- and within-species thermal sensitivity. The latter conception, the Metabolic Cold Adaptation hypothesis, predicts lower among-species thermal sensitivity than within-species sensitivity. Previous studies that tested these hypotheses for fishes overwhelmingly investigated teleosts with elasmobranchs understudied. Here, we show that among-species thermal sensitivity of resting metabolic rates is lower than within-species sensitivity in teleosts but not in elasmobranchs. Further, species richness declines with latitude more rapidly in elasmobranchs than in teleosts. Metabolic Cold Adaptation exhibited by teleosts might underpin their high diversity at high latitudes, whereas the inflexible thermal sensitivity approximated by Universal Temperature Dependence of elasmobranchs might explain their low diversity at high latitudes. |
| first_indexed | 2024-04-09T15:08:44Z |
| format | Article |
| id | doaj.art-974dc7b2c02c47e4899d66e3418a890f |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-09T15:08:44Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-974dc7b2c02c47e4899d66e3418a890f2023-04-30T11:21:30ZengNature PortfolioNature Communications2041-17232023-04-011411810.1038/s41467-023-37637-zThermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchsYuuki Y. Watanabe0Nicholas L. Payne1National Institute of Polar ResearchSchool of Natural Sciences, Trinity College DublinAbstract Environmental temperature affects physiological functions, representing a barrier for the range expansions of ectothermic species. To understand the link between thermal physiology and biogeography, a key question is whether among-species thermal sensitivity of metabolic rates is mechanistically constrained or buffered through physiological remodeling over evolutionary time. The former conception, the Universal Temperature Dependence hypothesis, predicts similar among- and within-species thermal sensitivity. The latter conception, the Metabolic Cold Adaptation hypothesis, predicts lower among-species thermal sensitivity than within-species sensitivity. Previous studies that tested these hypotheses for fishes overwhelmingly investigated teleosts with elasmobranchs understudied. Here, we show that among-species thermal sensitivity of resting metabolic rates is lower than within-species sensitivity in teleosts but not in elasmobranchs. Further, species richness declines with latitude more rapidly in elasmobranchs than in teleosts. Metabolic Cold Adaptation exhibited by teleosts might underpin their high diversity at high latitudes, whereas the inflexible thermal sensitivity approximated by Universal Temperature Dependence of elasmobranchs might explain their low diversity at high latitudes.https://doi.org/10.1038/s41467-023-37637-z |
| spellingShingle | Yuuki Y. Watanabe Nicholas L. Payne Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs Nature Communications |
| title | Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| title_full | Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| title_fullStr | Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| title_full_unstemmed | Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| title_short | Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| title_sort | thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs |
| url | https://doi.org/10.1038/s41467-023-37637-z |
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