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Coral reef fish vulnerability to humans and climate
EP24097
Poster Title: Coral reef fish vulnerability to humans and climate
Submitted on 20 Jun 2016
Author(s): Mellin C, Mouillot D, Kulbicki M, McClanahan TR, Caley MJ
Affiliations: Australian Institute of Marine Science
This poster was presented at 13th International Coral Reef Symposium, Honolulu, HI
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Poster Information
Abstract: Coral reefs are among the most species-rich and threatened ecosystems on Earth, yet the extent to which human stressors determine species occurrences, compared to biogeography or environmental conditions, remains largely unknown over broad spatial scales. With ever-increasing human-mediated disturbances on these ecosystems, an important question is not only how many species can inhabit local communities, but also which biological traits determine species that can persist (or not) above particular disturbance thresholds. Here we show that human pressure and seasonal climate variability are disproportionately and negatively associated with the occurrence of large-bodied and geographically small-ranging fishes within local coral reef communities. These species are 67 % less likely to occur where human impact and temperature seasonality exceed critical thresholds, such as in the marine biodiversity hotspot: the Coral Triangle. Our results identify the most sensitive species and critical thresholds of human and climatic stressors, providing opportunity for targeted conservation intervention to prevent local extinctions.Summary: Here we show that human pressure and seasonal climate variability are disproportionately and negatively associated with the occurrence of large-bodied and geographically small-ranging fishes within local coral reef communities. References: Mellin C, Mouillot D, Kulbicki M, McClanahan TR, Vigliola L, Bradshaw CJA, Brainard RE, Chabanet P, Edgar GJ, Fordham DA, Friedlander AM, Parravicini V, Sequeira AMM, Stuart-Smith RD, Wantiez L, Caley MJ (2016). Humans and seasonal climate variability threaten large-bodied coral reef fish with small ranges. Nature Communications 7: 10491. doi:10.1038/ncomms10491.Report abuse »
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