The biogeography of tropical reef fishes: endemism and provinciality through time

Cowman, Peter F., Parravicini, Valeriano, Kulbicki, Michel, and Floeter, Sergio R. (2017) The biogeography of tropical reef fishes: endemism and provinciality through time. Biological Reviews. (In Press)

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View at Publisher Website: http://dx.doi.org/10.1111/brv.12323
 
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Abstract

The largest marine biodiversity hotspot straddles the Indian and PacificOceans, driven by taxa associated with tropical coral reefs. Centred on the Indo-Australian Archipelago (IAA), this biodiversity hotspot forms the ‘bullseye’ of a steep gradient in species richness from this centre to the periphery of the vast Indo-Pacific region. Complex patterns of endemism, wide-ranging species and assemblage differences have obscured our understanding of the genesis of this biodiversity pattern and its maintenance across two-thirds of the world’s oceans. But time-calibrated molecular phylogenies coupled with ancestral biogeographic estimates have provided a valuable framework in which to examine the origins of coral reef fish biodiversity across the tropics. Herein, we examine phylogenetic and biogeographic data for coral reef fishes to highlight temporal patterns of marine endemism and tropical provinciality. The ages and distribution of endemic lineages have often been used to identify areas of species creation and demise in the marine tropics and discriminate among multiple hypotheses regarding the origins of biodiversity in the IAA. Despite a general under-sampling of endemic fishes in phylogenetic studies, the majority of locations today contain a mixture of potential paleo- and neo-endemic fishes, pointing to multiple historical processes involved in the origin and maintenance of the IAA biodiversity hotspot. Increased precision and sampling of geographic ranges for reef fishes has permitted the division of discrete realms, regions and provinces across the tropics. Yet, such metrics are only beginning to integrate phylogenetic relatedness and ancestral biogeography. Here, we integrate phylogenetic diversity with ancestral biogeographic estimation of lineages to show how assemblage structure and tropical provinciality has changed through time.

Item ID: 47861
Item Type: Article (Refereed Research - C1)
Keywords: biodiversity, biogeography, provinciality, assemblage similarity, coral reef fishes, endemism, hotspot
ISSN: 1469-185X
Funders: Foundation pour la Recherche sur la Biodiversité (FRB), Yale Institute for Biospheric Studies (YIBS), ARC Centre of Excellence for Coral Reef Studies (CECRS), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Projects and Grants: CNPq #305358/2015-4
Date Deposited: 15 Mar 2017 02:23
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060302 Biogeography and Phylogeography @ 60%
06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060309 Phylogeny and Comparative Analysis @ 20%
06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060311 Speciation and Extinction @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 50%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 50%
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