Estimating dispersal potential for marine larvae: dynamic models applied to scleractinian corals. Settlement-competency period of planulae and genetic differentiation of the scleractinian coral Acropora digitifera. IPCC Climate Change 2014: Impacts, Adaptation, and Vulnerability (eds Field, C. Going with the flow: the role of ocean circulation in global marine ecosystems under a changing climate. Climate change and coral reef connectivity. Increased local retention of reef coral larvae as a result of ocean warming. Plasticity of larval pre-competency in response to temperature: observations on multiple broadcast spawning coral species. Effects of elevated temperature on larval settlement and post-settlement survival in scleractinian corals, Acropora solitaryensis and Favites chinensis. Ecologically relevant dispersal of corals on isolated reefs: implications for managing resilience. The cumulative impact of annual coral bleaching can turn some coral species winners into losers. Lipids and stable carbon isotopes in two species of Hawaiian corals, Porites compressa and Montipora verrucosa, following a bleaching event. Global warming transforms coral reef assemblages. Coral reef ecosystems under climate change and ocean acidification. Global trajectories of the long-term decline of coral reef ecosystems. The Economics of Worldwide Coral Reef Degradation (Cesar Environmental Economics Consulting, 2003). Such changes make protections more effective locally, but may require reducing spacing between protected areas.Ĭesar, H., Burke, L. Collectively, these shifts imply that 2 ☌ of warming will reduce inter-reef connectivity, hampering recovery after disturbances and reducing the spread of warm-adapted genes. Overall, there was on average a 7% decrease in the distance larvae disperse (among-reef interquartile range (IQR), −10% to −4%), an 8% decrease in the number of connections into each reef (IQR, −11% to −3%) and a 20% increase in local retention (IQR, 0% to +49%). Using a high-resolution (as high as 200 m), empirically calibrated biophysical model of coral larval dispersal for the southern Great Barrier Reef, we show that the increased larval mortality and reduced competency duration under a 2 ☌ warming alter dispersal patterns, whereas projected changes in large-scale currents have limited effects. Global warming is killing corals however, the effects of warming on population connectivity, a process fundamental to reef recovery, are largely unexplored.
0 kommentar(er)
