Marco Fusi
The trade-off between heat tolerance and metabolic cost drives the bimodal life strategy at the air-water interface
Fusi, Marco; Cannicci, Stefano; Daffonchio, Daniele; Mostert, Bruce; P�rtner, Hans-Otto; Giomi, Folco
Authors
Stefano Cannicci
Daniele Daffonchio
Bruce Mostert
Hans-Otto P�rtner
Folco Giomi
Abstract
The principle of oxygen and capacity limitation of thermal tolerance in ectotherms suggests that the long-term upper limits of an organism's thermal niche are equivalent to the upper limits of the organism's functional capacity for oxygen provision to tissues. Air-breathing ectotherms show wider thermal tolerances, since they can take advantage of the higher availability of oxygen in air than in water. Bimodal species move from aquatic to aerial media and switch between habitats in response to environmental variations such as cyclical or anomalous temperature fluctuations. Here we tested the prediction that bimodal species cope better with thermal stress than truly aquatic species using the crab Pachygrapsus marmoratus as a model species. When in water, oxygen consumption rates of P. marmoratus acutely rise during warming. Beyond a temperature threshold of 23 °C the crab's aerobic metabolism in air remains lower than in water. In parallel, the haemolymph oxygen partial pressure of submerged animals progressive decreases during warming, while it remains low but constant during emersion. Our results demonstrate the ability of a bimodal breathing ectotherm to extend its thermal tolerance during air-breathing, suggesting that there are temperature-related physiological benefits during the evolution of the bimodal life style.
Citation
Fusi, M., Cannicci, S., Daffonchio, D., Mostert, B., Pörtner, H., & Giomi, F. (2016). The trade-off between heat tolerance and metabolic cost drives the bimodal life strategy at the air-water interface. Scientific Reports, 6(1), https://doi.org/10.1038/srep19158
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 14, 2015 |
Online Publication Date | Jan 13, 2016 |
Publication Date | 2016-05 |
Deposit Date | Apr 22, 2020 |
Publicly Available Date | Apr 23, 2020 |
Journal | Scientific Reports |
Publisher | Nature Publishing Group |
Peer Reviewed | Peer Reviewed |
Volume | 6 |
Issue | 1 |
DOI | https://doi.org/10.1038/srep19158 |
Public URL | http://researchrepository.napier.ac.uk/Output/2654941 |
Files
The trade-off between heat tolerance and metabolic cost drives the bimodal life strategy at the air-water interface
(1.6 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
You might also like
Oxygen dynamics in marine productive ecosystems at ecologically relevant scales
(2023)
Journal Article
Downloadable Citations
About Edinburgh Napier Research Repository
Administrator e-mail: repository@napier.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search