Marine dispersal scales are congruent over evolutionary and ecological time

Pinsky, Malin L., Saenz-Agudelo, Pablo, Salles, Océane C., Almany, Glenn R., Bode, Michael, Berumen, Michael L., Andréfouët, Serge, Thorrold, Simon R., Jones, Geoffrey P., and Planes, Serge (2017) Marine dispersal scales are congruent over evolutionary and ecological time. Current Biology, 27 (1). pp. 149-154.

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Abstract

The degree to which offspring remain near their parents or disperse widely is critical for understanding population dynamics, evolution, and biogeography, and for designing conservation actions. In the ocean, most estimates suggesting short-distance dispersal are based on direct ecological observations of dispersing individuals, while indirect evolutionary estimates often suggest substantially greater homogeneity among populations. Reconciling these two approaches and their seemingly competing perspectives on dispersal has been a major challenge. Here we show for the first time that evolutionary and ecological measures of larval dispersal can closely agree by using both to estimate the distribution of dispersal distances. In orange clownfish (Amphiprion percula) populations in Kimbe Bay, Papua New Guinea, we found that evolutionary dispersal kernels were 17 km (95% confidence interval: 12-24 km) wide, while an exhaustive set of direct larval dispersal observations suggested kernel widths of 27 km (19-36 km) or 19 km (15-27 km) across two years. The similarity between these two approaches suggests that ecological and evolutionary dispersal kernels can be equivalent, and that the apparent disagreement between direct and indirect measurements can be overcome. Our results suggest that carefully applied evolutionary methods, which are often less expensive, can be broadly relevant for understanding ecological dispersal across the tree of life.

Item ID: 50717
Item Type: Article (Research - C1)
ISSN: 0960-9822
Funders: National Science Foundation (NSF), Department of Defence (DoD), USA, International Society for Reef Studies (ISRS), Alfred P. Sloan Foundation (APSF), King Abdullah University of Science and Technology (KAUST)
Projects and Grants: NSF Graduate Fellowship, DoD National Defense Science and Engineering Graduate Fellowship Program, ISRS Fellowship, APSF Research Fellowship BR2014-044, NSF Grant OCE-1430218
Date Deposited: 20 Sep 2017 11:18
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060302 Biogeography and Phylogeography @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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