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<publisher>HAL CCSD</publisher>
<title lang=en>Understanding the Spatio-Temporal Response of Coral Reef Fish Communities to Natural Disturbances: Insights from Beta-Diversity Decomposition</title>
<creator>Lamy, Thomas</creator>
<creator>Legendre, Pierre</creator>
<creator>Chancerelle, Yannick</creator>
<creator>Siu, Gilles</creator>
<creator>Claudet, Joachim</creator>
<contributor>Département de Sciences Biologiques [Montreal] ; Université de Montréal</contributor>
<contributor>Centre de recherches insulaires et observatoire de l'environnement (CRIOBE) ; Université de Perpignan Via Domitia (UPVD) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire d'Excellence CORAIL (LabEX CORAIL) ; Institut de Recherche pour le Développement (IRD) - Université des Antilles et de la Guyane (UAG) - École des hautes études en sciences sociales (EHESS) - École pratique des hautes études (EPHE) - Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) - Université de la Réunion (UR) - Université de la Polynésie Française (UPF) - Université de Nouvelle Calédonie - Institut d'écologie et environnement</contributor>
<description>International audience</description>
<source>ISSN: 1932-6203</source>
<source>PLoS ONE</source>
<publisher>Public Library of Science</publisher>
<identifier>hal-01212344</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01212344</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01212344/document</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01212344/file/journal.pone.0138696.pdf</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01212344</source>
<source>PLoS ONE, Public Library of Science, 2015, 〈10.1371/journal.pone.0138696〉</source>
<identifier>DOI : 10.1371/journal.pone.0138696</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0138696</relation>
<language>en</language>
<subject lang=en>coral reefs</subject>
<subject lang=en>Biomass</subject>
<subject lang=en>Ecosystem</subject>
<subject lang=en>Herbivory</subject>
<subject lang=en>species diversity</subject>
<subject lang=en>Biodiversity</subject>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Understanding how communities respond to natural disturbances is fundamental to assess the mechanisms of ecosystem resistance and resilience. However, ecosystem responses to natural disturbances are rarely monitored both through space and time, while the factors promoting ecosystem stability act at various temporal and spatial scales. Hence, assessing both the spatial and temporal variations in species composition is important to comprehensively explore the effects of natural disturbances. Here, we suggest a framework to better scrutinize the mechanisms underlying community responses to disturbances through both time and space. Our analytical approach is based on beta diversity decomposition into two components, replacement and biomass difference. We illustrate this approach using a 9-year monitoring of coral reef fish communities off Moorea Island (French Polynesia), which encompassed two severe natural disturbances: a crown-of-thorns starfish outbreak and a hurricane. These disturbances triggered a fast logistic decline in coral cover, which suffered a 90% decrease on all reefs. However, we found that the coral reef fish composition remained largely stable through time and space whereas compensatory changes in bio-mass among species were responsible for most of the temporal fluctuations, as outlined by the overall high contribution of the replacement component to total beta diversity. This suggests that, despite the severity of the two disturbances, fish communities exhibited high resistance and the ability to reorganize their compositions to maintain the same level of total community biomass as before the disturbances. We further investigated the spatial congruence of this pattern and showed that temporal dynamics involved different species across sites; yet, herbivores controlling the proliferation of algae that compete with coral communities were consistently favored. These results suggest that compensatory changes in bio-mass among species and spatial heterogeneity in species responses can provide further</description>
<date>2015-09</date>
</dc>
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