Quantifying dispersal between marine protected areas by a highly mobile species, the bottlenose dolphin, Tursiops truncatus

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dc.contributor.authorNykänen, Milaja
dc.contributor.authorDillane, Eileen
dc.contributor.authorEnglund, Anneli
dc.contributor.authorFoote, Andrew D.
dc.contributor.authorIngram, Simon N.
dc.contributor.authorLouis, Marie
dc.contributor.authorMirimin, Luca
dc.contributor.authorOudejans, Machiel
dc.contributor.authorRogan, Emer
dc.contributor.funderHeritage Councilen
dc.contributor.funderNational Parks and Wildlife Serviceen
dc.contributor.funderDepartment of Culture, Heritage and the Gaeltachten
dc.contributor.funderNational University of Irelanden
dc.contributor.funderGovernment of Irelanden
dc.contributor.funderHigher Education Funding Council for Walesen
dc.contributor.funderWelsh Governmenten
dc.contributor.funderHorizon 2020en
dc.date.accessioned2019-10-28T07:31:41Z
dc.date.available2019-10-28T07:31:41Z
dc.date.issued2018-08-23
dc.description.abstractAbstract The functioning of marine protected areas (MPAs) designated for marine megafauna has been criticized due to the high mobility and dispersal potential of these taxa. However, dispersal within a network of small MPAs can be beneficial as connectivity can result in increased effective population size, maintain genetic diversity, and increase robustness to ecological and environmental changes making populations less susceptible to stochastic genetic and demographic effects (i.e., Allee effect). Here, we use both genetic and photo-identification methods to quantify gene flow and demographic dispersal between MPAs of a highly mobile marine mammal, the bottlenose dolphin Tursiops truncatus. We identify three populations in the waters of western Ireland, two of which have largely nonoverlapping core coastal home ranges and are each strongly spatially associated with specific MPAs. We find high site fidelity of individuals within each of these two coastal populations to their respective MPA. We also find low levels of demographic dispersal between the populations, but it remains unclear whether any new gametes are exchanged between populations through these migrants (genetic dispersal). The population sampled in the Shannon Estuary has a low estimated effective population size and appears to be genetically isolated. The second coastal population, sampled outside of the Shannon, may be demographically and genetically connected to other coastal subpopulations around the coastal waters of the UK. We therefore recommend that the methods applied here should be used on a broader geographically sampled dataset to better assess this connectivity.en
dc.description.sponsorshipNational University of Ireland (Crawford-Hayes studentship); Government of Ireland (Sea Change Programme, Beaufort Marine Research Award in Fish Population Genetics); Higher Education Funding Council for Wales (Sêr Cymru National Research Network for Low Carbon, Energy and Environment); Welsh Government (Sêr Cymru National Research Network for Low Carbon, Energy and Environment)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationNykänen, M., Dillane, E., Englund, A., Foote, A.D., Ingram, S.N., Louis, M., Mirimin, L., Oudejans, M. and Rogan, E., 2018. Quantifying dispersal between marine protected areas by a highly mobile species, the bottlenose dolphin, Tursiops truncatus. Ecology and evolution, 8(18), pp. 9241-9258. DOI:10.1002/ece3.4343en
dc.identifier.doi10.1002/ece3.4343en
dc.identifier.endpage9258en
dc.identifier.issn2045-7758
dc.identifier.issued18en
dc.identifier.journaltitleEcology and Evolutionen
dc.identifier.startpage9241en
dc.identifier.urihttps://hdl.handle.net/10468/8896
dc.identifier.volume8en
dc.language.isoenen
dc.publisherJohn Wiley and Sons Ltden
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::MSCA-COFUND-FP/663830/EU/Strengthening International Research Capacity in Wales/SIRCIWen
dc.relation.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/ece3.4343
dc.rights© 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectBottlenose dolphinen
dc.subjectConnectivityen
dc.subjectMPAsen
dc.subjectPhoto-identificationen
dc.subjectPopulation structureen
dc.titleQuantifying dispersal between marine protected areas by a highly mobile species, the bottlenose dolphin, Tursiops truncatusen
dc.typeArticle (peer-reviewed)en
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