Socio-economic and management implications of range-shifting species in marine systems |
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| Authors: | Elizabeth MP Madin Natalie C Ban Zoë A Doubleday Thomas H Holmes Gretta T Pecl Franz Smith |
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| Institution: | 1. Department of Environmental Sciences, University of Technology - Sydney, PO Box 123, Sydney, NSW 2007, Australia;2. Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia;3. Fisheries, Aquaculture & Coasts, Institute of Marine & Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, Tasmania 7001, Australia;4. Southern Seas Ecology Laboratories, School of Earth and Environmental Sciences, University of Adelaide, Adelaide, South Australia 5005, Australia;5. Marine Science Program, Department of Environment and Conservation, 17 Dick Perry Avenue, Kensington, Western Australia 6151, Australia;6. Marine Adaptation Network of Australia, Australia;7. CSIRO Marine & Atmospheric Research, Climate Adaptation Flagship, GPO Box 2583, Brisbane, QLD 4001, Australia |
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| Abstract: | Climate change is leading to a redistribution of marine species, altering ecosystem dynamics as species extend or shift their geographic ranges polewards with warming waters. In marine systems, range shifts have been observed in a wide diversity of species and ecosystems and are predicted to become more prevalent as environmental conditions continue to change. Large-scale shifts in the ranges of marine species will likely have dramatic socio-economic and management implications. Australia provides a unique setting in which to examine the range of consequences of climate-induced range shifts because it encompasses a diverse range of ecosystems, spanning tropical to temperate systems, within a single nation and is home to global sea surface temperature change ‘hotspots’ (where range shifts are particularly likely to occur). We draw on global examples with a particular emphasis on Australian cases to evaluate these consequences. We show that in Australia, range shifts span a variety of ecosystem types, trophic levels, and perceived outcomes (i.e., negative versus positive). The effect(s) of range shifts on socio-economic change variables are rarely reviewed, yet have the potential to have positive and/or negative effects on economic activities, human health and ecosystem services. Even less information exists about potential management responses to range-shifting species. However, synthesis of these diverse examples provides some initial guidance for selecting effective adaptive response strategies and management tools in the face of continuing climate-mediated range shifts. |
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