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Title

Lost at sea: Genetic, oceanographic and meteorological evidence for storm-forced dispersal

AuthorsMonzón-Argüello, C.; Dell'Amico, F.; Morinière; Marco, Adolfo ; López-Jurado, Luis F.; Hays, G.C.; Scott, R.; Marsh, Robert; Lee, P.L.M.
Issue Date2012
PublisherRoyal Society (Great Britain)
CitationJournal of the Royal Society Interface 9: 1725- 1732 (2012)
AbstractFor many species, there is broad-scale dispersal of juvenile stages and/or long-distance migration of individuals and hence the processes that drive these various wide-ranging movements have important life-history consequences. Sea turtles are one of these paradigmatic long-distance travellers, with hatchlings thought to be dispersed by ocean currents and adults often shuttling between distant breeding and foraging grounds. Here, we use multidisciplinary oceanographic, atmospheric and genetic mixed stock analyses to show that juvenile turtles are encountered 'downstream' at sites predicted by currents. However, in some cases, unusual occurrences of juveniles are more readily explained by storm events and we show that juvenile turtles may be displaced thousands of kilometres from their expected dispersal based on prevailing ocean currents. As such, storms may be a route by which unexpected areas are encountered by juveniles which may in turn shape adult migrations. Increased stormy weather predicted under climate change scenarios suggests an increasing role of storms in dispersal of sea turtles and other marine groups with life-stages near the ocean surface. © 2012 The Royal Society.
URIhttp://hdl.handle.net/10261/64281
DOI10.1098/rsif.2011.0788
Identifiersdoi: 10.1098/rsif.2011.0788
issn: 1742-5689
Appears in Collections:(EBD) Artículos
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