Ecological constraints coupled with deep-time habitat dynamics predict the latitudinal diversity gradient in reef fishes

Type Article
Date 2019-09
Language English
Author(s) Gaboriau Théo1, 2, Albouy CamilleORCID3, Descombes Patrice4, 5, 6, Mouillot David1, 7, Pellissier Loïc5, 6, Leprieur Fabien1, 8
Affiliation(s) 1 : MARBEC, Université de Montpellier, CNRS, Ifremer, IRD, Montpellier, France
2 : Department of Computational Biology, University of Lausanne, Rue du Bugnon 27, 1011 Lausanne, Switzerland
3 : IFREMER, Unité Ecologie et Modèles pour l'Halieutique, Rue de l'Ile d'Yeu, BP21105, 44311 Nantes cedex 3, France
4 : Unit of Ecology and Evolution, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland
5 : Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland
6 : Landscape Ecology, Institute of Terrestrial Ecosystems, ETH Zürich, 8044 Zürich, Switzerland
7 : Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland 4811, Australia
8 : Institut Universitaire de France, Paris, France
Source Proceedings Of The Royal Society B-biological Sciences (0962-8452) (The Royal Society), 2019-09 , Vol. 286 , N. 1911 , P. 20191506 (10p.)
DOI 10.1098/rspb.2019.1506
WOS© Times Cited 13
Keyword(s) diversification, latitudinal diversity gradient, mechanistic model, palaeohabitat, reef fish

We develop a spatially explicit model of diversification based on palaeohabitat to explore the predictions of four major hypotheses potentially explaining the latitudinal diversity gradient (LDG), namely, the ‘time-area’, ‘tropical niche conservatism’, ‘ecological limits’ and ‘evolutionary speed’ hypotheses. We compare simulation outputs to observed diversity gradients in the global reef fish fauna. Our simulations show that these hypotheses are non-mutually exclusive and that their relative influence depends on the time scale considered. Simulations suggest that reef habitat dynamics produced the LDG during deep geological time, while ecological constraints shaped the modern LDG, with a strong influence of the reduction in the latitudinal extent of tropical reefs during the Neogene. Overall, this study illustrates how mechanistic models in ecology and evolution can provide a temporal and spatial understanding of the role of speciation, extinction and dispersal in generating biodiversity patterns.

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Gaboriau Théo, Albouy Camille, Descombes Patrice, Mouillot David, Pellissier Loïc, Leprieur Fabien (2019). Ecological constraints coupled with deep-time habitat dynamics predict the latitudinal diversity gradient in reef fishes. Proceedings Of The Royal Society B-biological Sciences, 286(1911), 20191506 (10p.). Publisher's official version : , Open Access version :