Historical and contemporary determinants of global phylogenetic structure in tropical reef fish faunas

Leprieur, Fabien, Colosio, Simona, Descombes, Patrice, Parravicini, Valeriano, Kulbicki, Michel, Cowman, Peter F., Bellwood, David R., Mouillot, David, and Pellissier, Loïc (2016) Historical and contemporary determinants of global phylogenetic structure in tropical reef fish faunas. Ecography, 39 (9). pp. 825-835.

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Abstract

Identifying the main determinants of tropical marine biodiversity is essential for devising appropriate conservation measures mitigating the ongoing degradation of coral reef habitats. Based on a gridded distribution database and phylogenetic information, we compared the phylogenetic structure of assemblages for three tropical reef fish families (Labridae: wrasses, Pomacentridae: damselfishes and Chaetodontidae: butterflyfishes) using the net relatedness (NRI) and nearest taxon (NTI) indices. We then related these indices to contemporary and historical environmental conditions of coral reefs using spatial regression analyses. Higher levels of phylogenetic clustering were found for fish assemblages in the Indo-Australian Archipelago (IAA), and more particularly when considering the NTI index. The phylogenetic structure of the Pomacentridae, and to a lower extent of the Chaeotodontidae and Labridae, was primarily associated with the location of refugia during the Quaternary period. Phylogenetic clustering in the IAA may partly result from vicariance events associated with coral reef fragmentation during the glacial periods of the Quaternary. Variation in the patterns among fish families further suggest that dispersal abilities may have interacted with past habitat availability in shaping the phylogenetic structure of tropical reef fish assemblages.

Item ID: 46088
Item Type: Article (Refereed Research - C1)
ISSN: 1600-0587
Funders: Fondation pour la Recherche sur la Biodiversité (FRB)
Projects and Grants: FRB project CESAB-GASPAR
Date Deposited: 19 Oct 2016 07:49
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060302 Biogeography and Phylogeography @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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