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<title lang=en>Interactive effects of three pervasive marine stressorsin a post-disturbance coral reef</title>
<creator>Gil, Michael A</creator>
<creator>Goldenberg, Silvan U.</creator>
<creator>Thai Bach, Anne ly</creator>
<creator>Mills, Suzanne C</creator>
<creator>Claudet, Joachim</creator>
<contributor>Department of Environmental Science, Policy, and Management [Berkeley] (ESPM) ; University of California [Berkeley]</contributor>
<contributor>Department of Biology ; University of Florida [Gainesville]</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>Southern Seas Ecology Laboratories ; University of Adelaide</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: 0722-4028</source>
<source>EISSN: 1432-0975</source>
<source>Coral Reefs</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01430977</identifier>
<identifier>https://hal-univ-perp.archives-ouvertes.fr/hal-01430977</identifier>
<source>https://hal-univ-perp.archives-ouvertes.fr/hal-01430977</source>
<source>Coral Reefs, Springer Verlag, 2016, 35 (4), pp.1281-1293 〈10.1007/s00338-016-1489-x〉</source>
<identifier>DOI : 10.1007/s00338-016-1489-x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00338-016-1489-x</relation>
<language>en</language>
<subject lang=en> Anthropogenic impacts</subject>
<subject lang=en> Environmental disturbance</subject>
<subject lang=en> Eutrophication</subject>
<subject lang=en> Terrestrial runoff</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<subject>[SDE.BE] Environmental Sciences/Biodiversity and Ecology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Ecosystems are commonly affected by natural, episodic disturbances that can abruptly and drastically alter communities. Although it has been shown that resilient ecosystems can eventually recover to pre-disturbed states, the extent to which communities in early stages of recovery could be affected by multiple anthropogenic stressors is poorly understood. Pervasive and rising anthropogenic stressors in coastal marine systems that could interactively affect the recovery of these systems following natural disturbances include high sedimentation, nutrient enrichment, and overfishing. Using a 6-month field experiment, we examined the effects of all combinations of these three stressors on key functional groups in the benthic community growing on simulated, post-disturbance reef patches within a system recovering from large-scale natural disturbances (corallivorous seastar outbreak and cyclone). Our study revealed that sedimentation, nutrient enrichment, and overfishing (simulated using exclusion cages) interactively affected coral survival and algal growth, with taxon-specific effects at multiple scales. First, our treatments affected corals and algae differently, with sedimentation being more detrimental to macroalgal growth but less detrimental to coral (Porites rus) survival in caged plots, driving significant interactions between sedimentation and caging for both taxa. We also observed distinct responses between coral species and between algal functional groups, with the most extensive responses from algal turf biomass, for which sedimentation suppressed the synergistic (positive) combined effect of nutrient enrichment and caging. Our findings suggest that different combinations of ubiquitous anthropogenic stressors, related to either sea- or land-based activities, interactively influence community recovery from disturbance and may alter species compositions in the resulting community. Our findings further suggest that anthropogenic stressors could promote further degradation of coral reefs following natural disturbances by inhibiting recovery to coral-dominated states that provide vital ecosystem services to coastal populations worldwide.</description>
<date>2016-08-19</date>
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