ArticleProceedings of the National Academy of Sciences of the United States of America2016
Body mass scaling of passive oxygen diffusion in endotherms and ectotherms.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 56 citations in OpenAlex.
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- Geographical and taxonomic patterns in aerobic traits of marine ectotherms.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- 3D Morphological Scanning and Environmental Correlates ofAnimals : an open access journal from MDPI · 2024Article
- Tail shape and the swimming speed of sharks.Royal Society open science · 2023Article
- Isometric spiracular scaling in scarab beetles-implications for diffusive and advective oxygen transport.eLife · 2022Article
- Impact of warming on aquatic body sizes explained by metabolic scaling from microbes to macrofauna.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Comparison of metabolic scaling between triploid and diploid common carp.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2021Article
- Respiratory capacity is twice as important as temperature in explaining patterns of metabolic rate across the vertebrate tree of life.Science advances · 2021Article
- Investigating the gill-oxygen limitation hypothesis in fishes: intraspecific scaling relationships of metabolic rate and gill surface area.Conservation physiology · 2021Article
- Oxygen limitation may affect the temperature and size dependence of metabolism in aquatic ectotherms.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Gill slits provide a window into the respiratory physiology of sharks.Conservation physiology · 2020Article
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- Phenotypic plasticity and local adaptations to dissolved oxygen in larvae fire salamander (Salamandra infraimmaculata).Oecologia · 2019Article
- Evolution and Functional Differentiation of the Diaphragm Muscle of Mammals.Comprehensive physiology · 2019Review
- Bridging disciplines to advance elasmobranch conservation: applications of physiological ecology.Conservation physiology · 2019Article
- The Performance of Two Supertree Schemes Compared Using Synthetic and Real Data Quartet Input.Journal of molecular evolution · 2018Article
- Upper limits to body size imposed by respiratory-structural trade-offs in Antarctic pycnogonids.Proceedings. Biological sciences · 2017Article
- A broad-scale comparison of aerobic activity levels in vertebrates: endotherms versus ectotherms.Proceedings. Biological sciences · 2017Article
- Article
- Common metabolic constraints on dive duration in endothermic and ectothermic vertebrates.PeerJ · 2016Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The area and thickness of respiratory surfaces, and the constraints they impose on passive oxygen diffusion, have been linked to differences in oxygen consumption rates and/or aerobic activity levels in vertebrates. However, it remains unclear how respiratory surfaces and associated diffusion rates vary with body mass across vertebrates, particularly in relation to the body mass scaling of oxygen consumption rates. Here we address these issues by first quantifying the body mass dependence of respiratory surface area and respiratory barrier thickness for a diversity of endotherms (birds and mammals) and ectotherms (fishes, amphibians, and reptiles). Based on these findings, we then use Fick's law to predict the body mass scaling of oxygen diffusion for each group. Finally, we compare the predicted body mass dependence of oxygen diffusion to that of oxygen consumption in endotherms and ectotherms. We find that the slopes and intercepts of the relationships describing the body mass dependence of passive oxygen diffusion in these two groups are statistically indistinguishable from those describing the body mass dependence of oxygen consumption. Thus, the area and thickness of respiratory surfaces combine to match oxygen diffusion capacity to oxygen consumption rates in both air- and water-breathing vertebrates. In particular, the substantially lower oxygen consumption rates of ectotherms of a given body mass relative to those of endotherms correspond to differences in oxygen diffusion capacity. These results provide insights into the long-standing effort to understand the structural attributes of organisms that underlie the body mass scaling of oxygen consumption.
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