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- W2896215337 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 607:143-154 (2018) - DOI: https://doi.org/10.3354/meps12792 Limited dispersal explains the spatial distribution of siblings in a reef fish population C. C. D’Aloia1,2,*, A. Xuereb2, M.-J. Fortin2, S. M. Bogdanowicz3, P. M. Buston4 1Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 2Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, ON M5S 3B2, Canada 3Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA 4Department of Biology and Marine Program, Boston University, Boston, MA 02215, USA *Corresponding author: cassidy.daloia@gmail.com ABSTRACT: Extensive larval dispersal and a high degree of planktonic cohort mixing were long presumed to disrupt kin aggregations in marine environments. Yet, recent genetic studies of diverse marine taxa have suggested that kin may be found in close proximity to each other after settlement, raising interesting questions about the ecological and behavioral processes that could generate these patterns. We drew on sibship reconstruction to test whether kin cohesion and/or the scale of dispersal could explain patterns of relatedness in the coral reef fish Elacatinus lori. We genotyped 4074 recently settled individuals along a 41 km transect on the Belize Barrier Reef. Because most individuals in the population were unrelated, we found that high-confidence sibling assignments required a large number of microsatellites (≥55). Using 71 microsatellites, we documented 371 sibling pairs which were non-randomly distributed on the reef: 50% were ≤3 km apart and 99% were ≤18 km apart. The spatial distribution of sibling pairs was congruent with predictions from the limited dispersal hypothesis, and we found no evidence that siblings disperse cohesively. These results underscore the importance of (1) accounting for the relative abundance of different relationship types within a population to accurately identify siblings and (2) carefully applying spatial analyses to discriminate between alternative ecological kin structuring mechanisms. More broadly, this study provides a framework for linking spatial distributions of siblings to the processes that generate them, highlighting the potential for sibship data to provide new insights into marine larval dispersal. KEY WORDS: Genetic relatedness · Kinship · Collective dispersal · Larval dispersal · Coral reef · Spatial ecology · Microsatellite sequencing Full text in pdf format Supplementary material PreviousNextCite this article as: D’Aloia CC, Xuereb A, Fortin MJ, Bogdanowicz SM, Buston PM (2018) Limited dispersal explains the spatial distribution of siblings in a reef fish population. Mar Ecol Prog Ser 607:143-154. https://doi.org/10.3354/meps12792 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 607. Online publication date: December 06, 2018 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2018 Inter-Research." @default.
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- W2896215337 title "Limited dispersal explains the spatial distribution of siblings in a reef fish population" @default.
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