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Globally consistent reef size spectra integrating fishes and invertebrates
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Abstract
The frequency distribution of individual body sizes in animal communities (i.e. the size spectrum) provides powerful insights for understanding the energy flux through food webs. However, studies of size spectra in rocky and coral reef communities typically focus only on fishes or invertebrates due to taxonomic and data constraints, and consequently ignore energy pathways involving the full range of macroscopic consumer taxa. We analyse size spectra with co‐located fish and mobile macroinvertebrate data from 3369 reef sites worldwide, specifically focusing on how the addition of invertebrate data alters patterns. The inclusion of invertebrates steepens the size spectrum, more so in temperate regions, resulting in a consistent size spectrum slope across latitudes, and bringing slopes closer to theoretical expectations based on energy flow through the system. These results highlight the importance of understanding contributions of both invertebrates and fishes to reef food webs worldwide.
Item Type: | Article |
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Authors/Creators: | Heather, FJ and Blanchard, JL and Edgar, GJ and Trebilco, R and Stuart-Smith, RD |
Keywords: | benthic, biomass equivalence rule, coastal, community, fish, macroecology, size distribution, size spectrum, trophic pathways |
Journal or Publication Title: | Ecology Letters |
Publisher: | Blackwell Publishing Ltd |
ISSN: | 1461-023X |
DOI / ID Number: | 10.1111/ele.13661 |
Copyright Information: | Copyright 2021 John Wiley & Sons Ltd |
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Item Statistics: | View statistics for this item |
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