Ecological constraints coupled with deep-time habitat dynamics predict the latitudinal diversity gradient in reef fishes
Gaboriau, T.; Albouy, C.; Descombes, P.; Mouillot, D.; Pellissier, L.; Leprieur, F. (2019). Ecological constraints coupled with deep-time habitat dynamics predict the latitudinal diversity gradient in reef fishes. Proc. - Royal Soc., Biol. Sci. 286(1911): 20191506. https://dx.doi.org/10.1098/rspb.2019.1506
In: Proceedings of the Royal Society of London. Series B. The Royal Society: London. ISSN 0962-8452; e-ISSN 1471-2954, meer
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| Trefwoorden |
Diversification
Pisces [WoRMS]
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| Author keywords |
latitudinal diversity gradient, mechanistic model, palaeohabitat, reef fish |
| Auteurs | | Top |
- Gaboriau, T.
- Albouy, C.
- Descombes, P.
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- Mouillot, D.
- Pellissier, L.
- Leprieur, F.
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| Abstract |
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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