Scaling of Activity Space in Marine Organisms across Latitudinal Gradients - Université de Bretagne Occidentale Access content directly
Journal Articles The American Naturalist Year : 2023

Scaling of Activity Space in Marine Organisms across Latitudinal Gradients

1 AIMS - Australian Institute of Marine Science
2 Flinders Univ S Australia, Coll Sci & Engn, Natl Ctr Groundwater Res & Training, GPO Box 2100, Adelaide, SA, Australia
3 Sydney Institute of Marine Science
4 Macquarie University [Sydney]
5 Queensland Bioscience Precinct
6 Environmental Research Division [USA]
7 UC Santa Cruz - University of California [Santa Cruz]
8 UTAS - University of Tasmania [Launceston]
9 Charles Darwin University [Australia]
10 Department of Biological Sciences, Macquarie University
11 CISRO Oceans and Atmosphere
12 Carleton University
13 JCU - James Cook University
14 Industry and Investment NSW, Port Stephens Fisheries Institute
15 University of Queensland [Brisbane]
16 NMFS - NOAA National Marine Fisheries Service
17 Department of Biological Sciences [North Ryde]
18 The University of Tennessee [Knoxville]
20 UTS - University of Technology Sidney
21 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)
22 UBO - Université de Brest
23 USC - University of the Sunshine Coast
24 UCR - Universidad de Costa Rica
25 Indian Ocean Marine Res Ctr
26 FIU - Florida International University [Miami]
27 New South Wales Dept Primary Ind
28 Macquarie University
29 UNSW - University of New South Wales [Sydney]
30 University of Windsor [Ca]
31 UTAS - University of Tasmania [Hobart, Australia]
32 UWA - The University of Western Australia
33 Murdoch University
34 Victorian Natl Pk Assoc
35 SCU - Southern Cross University
36 Queensland Bioscience Precinct
37 Monash university
38 SARDI - South Australian Research and Development Institute [Australia]
Kate Lee
  • Function : Author


Unifying models have shown that the amount of spaceused by animals (e.g., activity space, home range) scales allometricallywith body mass for terrestrial taxa; however, such relationships arefar less clear for marine species. We compiled movement data from1,596 individuals across 79 taxa collected using a continental passiveacoustic telemetry network of acoustic receivers to assess allometric scal-ing of activity space. We found thatectothermic marine taxa do exhibitallometric scaling for activity space, with an overall scaling exponentof 0.64. However, body mass alone explained only 35% of the varia-tion, with the remaining variation best explained by trophic positionfor teleosts and latitude for sharks, rays, and marine reptiles. Taxon-specific allometric relationships highlighted weaker scaling exponentsamong teleostfish species (0.07) than sharks (0.96), rays (0.55), andmarine reptiles (0.57). The allometric scaling relationship and scalingexponents for the marine taxonomic groups examined were lowerthan those reported from studies that had collated both marine andterrestrial species data derived using various tracking methods. Wepropose that these disparities arise because previous work integratedsummarized data across many studies that used differing methods forcollecting and quantifying activity space, introducing considerableuncertainty into slope estimates. Ourfindings highlight the benefitof using large-scale, coordinated animal biotelemetry networks to ad-dress cross-taxa evolutionary and ecological questions.
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hal-04044041 , version 1 (31-03-2023)





Vinay Udyawer, Charlie Huveneers, Fabrice Jaine, Russell C. Babcock, Stephanie Brodie, et al.. Scaling of Activity Space in Marine Organisms across Latitudinal Gradients. The American Naturalist, 2023, 201 (4), pp.501-618. ⟨10.1086/723405⟩. ⟨hal-04044041⟩
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