Seascape features, rather than dispersal traits, predict spatial genetic patterns in co-distributed reef fishes

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dc.citation.issue2
dc.citation.volume43
dc.contributor.authorLiggins L
dc.contributor.authorTreml EA
dc.contributor.authorPossingham HP
dc.contributor.authorRiginos C
dc.date.available2016-02
dc.date.issued2015
dc.description.abstractAim: To determine which seascape features have shaped the spatial genetic patterns of coral reef fishes, and to identify common patterns among species related to dispersal traits [egg type and pelagic larval duration (PLD)]. Location: Indian and Pacific Oceans, including the Indo-Australian Archipelago. Methods: We sampled coral reef fishes with differing dispersal traits (Pomacentrus coelestis, Dascyllus trimaculatus, Hailchoeres hortulanus and Acanthurus triostegus) and characterized spatial (mtDNA) genetic patterns using AMOVA-clustering and measures of genetic differentiation. Similarity in the spatial genetic patterns among species was assessed using the congruence among distance matrices method and the seascape features associated with the genetic differentiation of each species were identified using multiple regression of distance matrices (MRDM) and stepwise model selection. Results: Similar spatial genetic patterns were found for P. coelestis and H. hortulanus, despite their differing egg type (benthic versus pelagic). MRDM indicated that geographical distance was underlying their correlated genetic patterns. Species with pelagic eggs (A. triostegus and H. hortulanus) also had correlated patterns of genetic differentiation (Dest); however, a common underlying seascape feature could not be inferred. Additionally, the common influence of the Torres Strait and the Lydekker/Weber's line was identified for the genetic patterns of differentiation for P. coelestis and A. triostegus, despite their differing dispersal traits, and the uncorrelated spatial genetic patterns of these species. Main conclusions: Our study demonstrates the value of a quantitative, hypothesis-testing framework in comparative phylogeography. We found that dispersal traits (egg type and PLD) did not predict which species had similar spatial genetic patterns or which seascape features were associated with these patterns. Furthermore, even in the absence of visually similar, or correlated spatial genetic patterns, our approach enabled us to identify seascape features that had a common influence on the spatial genetic patterns of co-distributed species.
dc.description.publication-statusPublished
dc.format.extent256 - 267
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000368271000004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationJOURNAL OF BIOGEOGRAPHY, 2016, 43 (2), pp. 256 - 267
dc.identifier.doi10.1111/jbi.12647
dc.identifier.eissn1365-2699
dc.identifier.elements-id256931
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0305-0270
dc.identifier.urihttps://hdl.handle.net/10179/17396
dc.publisherWiley
dc.relation.isPartOfJOURNAL OF BIOGEOGRAPHY
dc.subjectbiophysical model
dc.subjectcomparative phylogeography
dc.subjectcoral reef fish
dc.subjectearly life history traits
dc.subjectIndo-Australasian Archipelago
dc.subjectIndo-Pacific Ocean
dc.subjectlarval dispersal
dc.subjectpelagic larval duration
dc.subjectseascape genetics
dc.subjectstatistical phylogeography
dc.subject.anzsrc04 Earth Sciences
dc.subject.anzsrc05 Environmental Sciences
dc.subject.anzsrc06 Biological Sciences
dc.titleSeascape features, rather than dispersal traits, predict spatial genetic patterns in co-distributed reef fishes
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Natural Sciences
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