Repository logo
 
Publication

Oceanographic conditions limit the spread of a marine invader along Southern African shores

2015Journal article Open Access
Simple item page
dc.contributor.authorAssis, J.
dc.contributor.authorZupan, Mirta
dc.contributor.authorNicastro, Katy
dc.contributor.authorZardi, Gerardo I.
dc.contributor.authorMcQuaid, Christopher D.
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2018-12-07T14:53:40Z
dc.date.available2018-12-07T14:53:40Z
dc.date.issued2015
dc.description.abstractInvasive species can affect the function and structure of natural ecological communities, hence understanding and predicting their potential for spreading is a major ecological challenge. Once established in a new region, the spread of invasive species is largely controlled by their dispersal capacity, local environmental conditions and species interactions. The mussel Mytilus galloprovincialis is native to the Mediterranean and is the most successful marine invader in southern Africa. Its distribution there has expanded rapidly and extensively since the 1970s, however, over the last decade its spread has ceased. In this study, we coupled broad scale field surveys, Ecological Niche Modelling (ENM) and Lagrangian Particle Simulations (LPS) to assess the current invaded distribution of M. galloprovincialis in southern Africa and to evaluate what prevents further spread of this species. Results showed that all environmentally suitable habitats in southern Africa have been occupied by the species. This includes rocky shores between Rocky Point in Namibia and East London in South Africa (approx. 2800 km) and these limits coincide with the steep transitions between cool-temperate and subtropical-warmer climates, on both west and southeast African coasts. On the west coast, simulations of drifting larvae almost entirely followed the northward and offshore direction of the Benguela current, creating a clear dispersal barrier by advecting larvae away from the coast. On the southeast coast, nearshore currents give larvae the potential to move eastwards, against the prevalent Agulhas current and beyond the present distributional limit, however environmental conditions prevent the establishment of the species. The transition between the cooler and warmer water regimes is therefore the main factor limiting the northern spread on the southeast coast; however, biotic interactions with native fauna may also play an important role.
dc.description.sponsorshipPortuguese National Science Foundation (FCT) [EXCL/AAG-GLO/0661/2012, EXPL/BIA-BIC/1471/2012, CCMAR/BPD/0045/2013]; South African Research Chairs Initiative of the Department of Science and Technology; National Research Foundation
dc.identifier.doi10.1371/journal.pone.0128124
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10400.1/11628
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPublic Library Science
dc.subjectSpecies Distribution Models
dc.subjectIndigenous Perna-Perna
dc.subjectInvasive Mytilus-Galloprovincialis
dc.subjectBlue Mussels Mytilus
dc.subjectMosaic Hybrid Zone
dc.subjectIntertidal Mussels
dc.subjectLarval-Dispersal
dc.subjectSpatial Autocorrelation
dc.subjectPopulation Connectivity
dc.subjectGenetic-Structure
dc.titleOceanographic conditions limit the spread of a marine invader along Southern African shores
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.startPagee0128124
oaire.citation.titlePlos One
oaire.citation.volume10
person.familyNameAssis
person.familyNameZupan
person.familyNameNicastro
person.familyNameSerrao
person.givenNameJorge
person.givenNameMirta
person.givenNameKaty
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-id5C1D-05B6-29F7
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0002-6624-4820
person.identifier.orcid0000-0001-5781-1718
person.identifier.orcid0000-0002-7071-141X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridG-9688-2012
person.identifier.ridD-2259-2012
person.identifier.scopus-author-id53463298700
person.identifier.scopus-author-id12646675100
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationc794f76b-9001-4ac1-913a-bb0f3aab6ef5
relation.isAuthorOfPublicationfd34a868-d05e-4284-b90a-f37dede475d3
relation.isAuthorOfPublication6268844a-b0a2-4aa5-9616-c3afaba0e2ca
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery6268844a-b0a2-4aa5-9616-c3afaba0e2ca

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Oceanographic conditions limit the spread of a marine invader along Southern African shores.PDF
Size:
1.27 MB
Format:
Adobe Portable Document Format
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)