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2. Scaling of Activity Space in Marine Organisms across Latitudinal Gradients

Author

Vinay Udyawer, Charlie Huveneers, Fabrice Jaine, Russell C. Babcock, Stephanie Brodie, Marie-Jeanne Buscot, Hamish A. Campbell, Robert G. Harcourt, Xavier Hoenner, Elodie J. I. Lédée, Colin A. Simpfendorfer, Matthew D. Taylor, Asia Armstrong, Adam Barnett, Culum Brown, Barry Bruce, Paul A. Butcher, Gwenael Cadiou, Lydie I. E. Couturier, Leanne Currey-Randall, Michael Drew, Christine L. Dudgeon, Ross G. Dwyer, Mario Espinoza, Luciana C. Ferreira, Anthony Fowler, David Harasti, Alastair R. Harborne, Nathan A. Knott, Kate Lee, Matt Lloyd, Michael Lowry, Teagan Marzullo, Jordan Matley, Jaime D. McAllister, Rory McAuley, Frazer McGregor, Mark Meekan, Kade Mills, Bradley M. Norman, Beverly Oh, Nicholas L. Payne, Vic Peddemors, Toby Piddocke, Richard D. Pillans, Richard D. Reina, Paul Rogers, Jayson M. Semmens, Amy Smoothey, Conrad W. Speed, Dylan van der Meulen, Michelle R. Heupel, Australian Institute of Marine Science (AIMS), Flinders Univ S Australia, Coll Sci & Engn, Natl Ctr Groundwater Res & Training, GPO Box 2100, Adelaide, SA, Australia, Partenaires INRAE, Sydney Institute of Marine Science, Macquarie University [Sydney], Queensland Bioscience Precinct, Environmental Research Division [USA], Southwest Fisheries Science Center (SWFSC), NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA)-NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC), University of Tasmania [Launceston] (UTAS), Charles Darwin University [Australia], Department of Biological Sciences, Macquarie University, Macquarie University, Department of Biological Sciences, CISRO Oceans and Atmosphere, Carleton University, James Cook University (JCU), Industry and Investment NSW, Port Stephens Fisheries Institute, University of Queensland [Brisbane], National Oceanic and Atmospheric Administration (NOAA), Department of Biological Sciences [North Ryde], Macquarie University, The University of Tennessee [Knoxville], NSW DPI NEW SOUTH WALES GOVERNMENT DEPARTMENT OF PRIMARY INDUSTRIES FISHERIES NSW WOLLONGONG AUS, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), University of Technology Sidney (UTS), Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Brest (UBO), University of the Sunshine Coast (USC), Universidad de Costa Rica (UCR), Indian Ocean Marine Res Ctr, Florida International University [Miami] (FIU), New South Wales Dept Primary Ind, University of New South Wales [Sydney] (UNSW), University of Windsor [Ca], University of Tasmania [Hobart, Australia] (UTAS), The University of Western Australia (UWA), Murdoch University, Victorian Natl Pk Assoc, Southern Cross University (SCU), Monash university, and South Australian Research and Development Institute [Australia]

Subjects
Brownian bridge kernel utilization distribution (KUD), continental network, Integrated Marine Observing System (IMOS), spatial ecology, Integrated Marine Ob-serving System (IMOS), Brownian bridge kernel utilizationdistribution (KUD), [SDE.BE]Environmental Sciences/Biodiversity and Ecology, metabolic theory, acoustic telemetry, Ecology, Evolution, Behavior and Systematics
Abstract

Unifying models have shown that the amount of space used by animals (e.g., activity space, home range) scales allometrically with body mass for terrestrial taxa; however, such relationships are far less clear for marine species. We compiled movement data from 1,596 individuals across 79 taxa collected using a continental passive acoustic telemetry network of acoustic receivers to assess allometric scaling of activity space. We found that ectothermic marine taxa do exhibit allometric scaling for activity space, with an overall scaling exponent of 0.64. However, body mass alone explained only 35% of the variation, with the remaining variation best explained by trophic position for teleosts and latitude for sharks, rays, and marine reptiles. Taxon-specific allometric relationships highlighted weaker scaling exponents among teleost fish species (0.07) than sharks (0.96), rays (0.55), and marine reptiles (0.57). The allometric scaling relationship and scaling exponents for the marine taxonomic groups examined were lower than those reported from studies that had collated both marine and terrestrial species data derived using various tracking methods. We propose that these disparities arise because previous work integrated summarized data across many studies that used differing methods for collecting and quantifying activity space, introducing considerable uncertainty into slope estimates. Our findings highlight the benefit of using large-scale, coordinated animal biotelemetry networks to address cross-taxa evolutionary and ecological questions.

Published
2023
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