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Journal article
Intraspecific scaling of home range size and its bioenergetic association
Ecology, Vol.106(2), e70003
2025
Abstract
Home range size and metabolic rate of animals are theorized to scale in relation to body mass with similar exponents. This expectation has only been indirectly tested using lab-derived estimates of basal metabolic rate as proxies for field energy requirements. Therefore, it is unclear if existing theory aligns with observed patterns of home range scaling since field metabolic rates may scale differently than basal metabolic rates. We conducted the first direct field test of the relationship between home range and metabolic rate allometry. Using acoustic telemetry, we simultaneously measured the home range sizes and field metabolic rates of lemon sharks (Negaprion brevirostris) spanning one order of magnitude in body mass and compared the allometric scaling exponents of these traits. Similarity between allometric scaling exponents confirmed an expected strong association between metabolic rate and home range size. However, a nonsignificant but negative association between standard metabolic rate (SMR) and home range size suggests a complex relationship between metabolism and home range, contrasting previous assumptions of a positive relationship. Nevertheless, an overall positive association between home range size and total metabolic rate persisted, driven by a strong association between active energy expenditure and home range size. These findings underscore the intricate relationship between energetics and home range size, emphasizing the need for additional direct field investigations and the potential for modern tagging technologies to gather relevant data.
Details
- Title
- Intraspecific scaling of home range size and its bioenergetic association
- Authors/Creators
- Evan Byrnes - Murdoch UniversityJenna Hounslow - Murdoch University, Centre for Sustainable Aquatic EcosystemsVital Heim - University of BaselClemency E White - University of ExeterMatthew Smukall - Bimini Biological Field Station FoundationStephen Beatty - Murdoch University, Centre for Sustainable Aquatic EcosystemsAdrian Gleiss - Murdoch University, Centre for Molecular Medicine and Innovative Therapeutics
- Publication Details
- Ecology, Vol.106(2), e70003
- Publisher
- Wiley Periodicals LLC on behalf of The Ecological Society of America.; HOBOKEN
- Number of pages
- 12
- Grant note
- Save Our Seas Foundation: 260, 402 Save Our Seas Foundation grantsCouncil of Australian University Librarians
The authors would like to thank Bimini Biological Field Station staff, S. Hart, C. Mason, A. Warrior, J. Whicheloe, and K. Yang, as well as interns who assisted with capturing and tagging of sharks. We thank the late Dr. S. Gruber for his dedication to furthering the understanding of elasmobranch ecology and in generating a large body of foundational work on lemon shark physiology and ecology. In addition, we thank two anonymous reviewers and the handling and associate editors for their constructive feedback that we feel greatly improved this manuscript. This work was funded by Save Our Seas Foundation grants 260 and 402. Open access publishing facilitated by Murdoch University, as part of the Wiley - Murdoch University agreement via the Council of Australian University Librarians.
- Identifiers
- 991005741591507891
- Copyright
- © 2025 The Author(s).
- Murdoch Affiliation
- Centre for Sustainable Aquatic Ecosystems; School of Environmental and Conservation Sciences; Harry Butler Institute; Centre for Molecular Medicine and Innovative Therapeutics
- Resource Type
- Journal article
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- 3.35.721 Rodent Ecology
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