ArticleProceedings. Biological sciences2017
Upper limits to body size imposed by respiratory-structural trade-offs in Antarctic pycnogonids.
Article in Proceedings. Biological sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 26 citations in OpenAlex.
- Isometric spiracular scaling in scarab beetles-implications for diffusive and advective oxygen transport.eLife · 2022Article
- White Paper: An Integrated Perspective on the Causes of Hypometric Metabolic Scaling in Animals.Integrative and comparative biology · 2022Article
- Scaling of thermal tolerance with body mass and genome size in ectotherms: a comparison between water- and air-breathers.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Will giant polar amphipods be first to fare badly in an oxygen-poor ocean? Testing hypotheses linking oxygen to body size.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Polar gigantism and the oxygen-temperature hypothesis: a test of upper thermal limits to body size in Antarctic pycnogonids.Proceedings. Biological sciences · 2019Article
- Widespread use of emersion and cutaneous ammonia excretion in Aplocheiloid killifishes.Proceedings. Biological sciences · 2018Article
- Does plasticity in thermal tolerance trade off with inherent tolerance? The influence of setal tracheal gills on thermal tolerance and its plasticity in a group of European diving beetles.Journal of insect physiology · 2018Article
- Thermal limits in native and alien freshwater peracarid Crustacea: The role of habitat use and oxygen limitation.Functional ecology · 2018Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Across metazoa, surfaces for respiratory gas exchange are diverse, and the size of those surfaces scales with body size. In vertebrates with lungs and gills, surface area and thickness of the respiratory barrier set upper limits to rates of metabolism. Conversely, some organisms and life stages rely on cutaneous respiration, where the respiratory surface (skin, cuticle, eggshell) serves two primary functions: gas exchange and structural support. The surface must be thin and porous enough to transport gases but strong enough to withstand external forces. Here, we measured the scaling of surface area and cuticle thickness in Antarctic pycnogonids, a group that relies on cutaneous respiration. Surface area and cuticle thickness scaled isometrically, which may reflect the dual roles of cuticle in gas exchange and structural support. Unlike in vertebrates, the combined scaling of these variables did not match the scaling of metabolism. To resolve this mismatch, larger pycnogonids maintain steeper oxygen gradients and higher effective diffusion coefficients of oxygen in the cuticle. Interactions among scaling components lead to hard upper limits in body size, which pycnogonids could evade only with some other evolutionary innovation in how they exchange gases.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.