Life history mediates the association between parasite abundance and geographic features.

Autor: Williams MA; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA.; Department of Biology, McDaniel College, Baltimore, MD, USA., Faiad S; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Claar DC; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., French B; Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA., Leslie KL; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Oven E; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Guerra AS; Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA., Micheli F; Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA.; Center for Ocean Solutions, Stanford University, Pacific Grove, CA, USA., Zgliczynski BJ; Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA., Haupt AJ; Scripps Institution of Oceanography, La Jolla, CA, USA.; Department of Marine Science, California State University Monterey Bay, CA, USA., Sandin SA; Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA., Wood CL; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA.
Jazyk: angličtina
Zdroj: The Journal of animal ecology [J Anim Ecol] 2022 May; Vol. 91 (5), pp. 996-1009. Date of Electronic Publication: 2022 Apr 07.
DOI: 10.1111/1365-2656.13693
Abstrakt: Although parasites are ubiquitous in marine ecosystems, predicting the abundance of parasites present within marine ecosystems has proven challenging due to the unknown effects of multiple interacting environmental gradients and stressors. Furthermore, parasites often are considered as a uniform group within ecosystems despite their significant diversity. We aim to determine the potential importance of multiple predictors of parasite abundance in coral reef ecosystems, including reef area, island area, human population density, chlorophyll-a, host diversity, coral cover, host abundance and island isolation. Using a model selection approach within a database of more than 1,200 individual fish hosts and their parasites from 11 islands within the Pacific Line Islands archipelago, we reveal that geographic gradients, including island area and island isolation, emerged as the best predictors of parasite abundance. Life history moderated the relationship; parasites with complex life cycles increased in abundance with increasing island isolation, while parasites with direct life cycles decreased with increasing isolation. Direct life cycle parasites increased in abundance with increasing island area, although complex life cycle parasite abundance was not associated with island area. This novel analysis of a unique dataset indicates that parasite abundance in marine systems cannot be predicted precisely without accounting for the independent and interactive effects of each parasite's life history and environmental conditions.
(© 2022 The Authors. Journal of Animal Ecology © 2022 British Ecological Society.)
Databáze: MEDLINE
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