Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Gaboriau T., Leprieur F., Mouillot D., Hubert Nicolas. (2018). Influence of the geography of speciation on current patterns of coral reef fish biodiversity across the Indo-Pacific. Ecography, 41 (8), 1295-1306. ISSN 0906-7590

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1111/ecog.02589

Titre
Influence of the geography of speciation on current patterns of coral reef fish biodiversity across the Indo-Pacific
Année de publication2018
Type de documentArticle référencé dans le Web of Science WOS:000440287200006
AuteursGaboriau T., Leprieur F., Mouillot D., Hubert Nicolas.
SourceEcography, 2018, 41 (8), p. 1295-1306. ISSN 0906-7590
RésuméThe role of speciation processes in shaping current biodiversity patterns represents a major scientific question for ecologists and biogeographers. Hence, numerous methods have been developed to determine the geography of speciation based on co-occurrence between sister-species. Most of these methods rely on the correlation between divergence time and several metrics based on the geographic ranges of sister-taxa (i.e. overlap, asymmetry). The relationship between divergence time and these metrics has scarcely been examined in a spatial context beyond regression curves. Mapping this relationship across spatial grids, however, may unravel how speciation processes have shaped current biodiversity patterns through space and time. This can be particularly relevant for coral reef fishes of the Indo-Pacific since the origin of the exceptional concentration of biodiversity in the Indo-Australian Archipelago (IAA) has been actively debated, with several alternative hypotheses involving species diversification and dispersal. We reconstructed the phylogenetic relationships between three species-rich families of coral reef fish (Chaetodontidae, Labridae, Pomacentridae) and calculated co-occurrence metrics between closely related lineages of those families. We demonstrated that repeated biogeographic processes can be identified in present-day species distribution by projecting co-occurrence metrics between related lineages in a geographical context. Our study also evidence that sister-species do not co-occur randomly across the Indo-Pacific, but tend to overlap their range within the IAA. We identified the imprint of two important biogeographic processes that caused this pattern in 48% of the sister-taxa considered: speciation events within the IAA and repeated divergence between the Indian and Pacific Ocean, with subsequent secondary contact in the IAA.
Plan de classementEcologie, systèmes aquatiques [036]
Descr. géo.OCEAN INDIEN ; PACIFIQUE ; INDONESIE ; MALAISIE ; PHILIPPINES ; TIMOR ORIENTAL ; PAPOUASIE NOUVELLE GUINEE ; AUSTRALIE
LocalisationFonds IRD [F B010073689]
Identifiant IRDfdi:010073689
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010073689

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Cayenne

Nouméa

Papeete

Abidjan

Dakar

Niamey

Ouagadougou

Tunis

La Paz

Quito