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|Title:||Strong but opposing β-diversity-stability relationships in coral reef fish communities|
|Other Titles:||Strong but opposing beta-diversity-stability relationships in coral reef fish communities|
|Citation:||Proceedings of the Royal Society B, 2014; 281(1777):1-10|
|Publisher:||The Royal Society|
|C. Mellin, C. J. A. Bradshaw, D. A. Fordham, M. J. Caley|
|Abstract:||The 'diversity-stability hypothesis', in which higher species diversity within biological communities buffers the risk of ecological collapse, is now generally accepted. However, empirical evidence for a relationship between β-diversity (spatial turnover in community structure) and temporal stability in community structure remains equivocal, despite important implications for theoretical ecology and conservation biology. Here, we report strong β-diversity-stability relationships across a broad sample of fish taxa on Australia's Great Barrier Reef. These relationships were robust to random sampling error and spatial and environmental factors, such as latitude, reef size and isolation. While β-diversity was positively associated with temporal stability at the community level, the relationship was negative for some taxa, for example surgeonfishes (Acanthuridae), one of the most abundant reef fish families. This demonstrates that the β-diversity-stability relationship should not be indiscriminately assumed for all taxa, but that a species' risk of extirpation in response to disturbance is likely to be taxon specific and trait based. By combining predictions of spatial and temporal turnover across the study area with observations in marine-protected areas, we conclude that protection alone does not necessarily confer temporal stability and that taxon-specific considerations will improve the outcome of conservation efforts.|
|Keywords:||β-diversity; Bray–Curtis; disturbance; long-term monitoring; mantel; time series|
|Rights:||© 2014 The Author(s) Published by the Royal Society. All rights reserved|
|Appears in Collections:||Ecology, Evolution and Landscape Science publications|
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