Sexual selection predicts species richness across the animal kingdom

Our improving knowledge of the animal tree of life consistently demonstrates that some taxa diversify more rapidly than others, but what contributes to this variation remains poorly understood. An influential hypothesis proposes that selection arising from competition for mating partners plays a key...

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Veröffentlicht in:Proceedings of the Royal Society. B, Biological sciences Biological sciences, 2018-05, Vol.285 (1878), p.20180173-20180173
Hauptverfasser: Janicke, Tim, Ritchie, Michael G., Morrow, Edward H., Marie-Orleach, Lucas
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container_end_page 20180173
container_issue 1878
container_start_page 20180173
container_title Proceedings of the Royal Society. B, Biological sciences
container_volume 285
creator Janicke, Tim
Ritchie, Michael G.
Morrow, Edward H.
Marie-Orleach, Lucas
description Our improving knowledge of the animal tree of life consistently demonstrates that some taxa diversify more rapidly than others, but what contributes to this variation remains poorly understood. An influential hypothesis proposes that selection arising from competition for mating partners plays a key role in promoting speciation. However, empirical evidence showing a link between proxies of this sexual selection and species richness is equivocal. Here, we collected standardized metrics of sexual selection for a broad range of animal taxa, and found that taxonomic families characterized by stronger sexual selection on males show relatively higher species richness. Thus, our data support the hypothesis that sexual selection elevates species richness. This could occur either by promoting speciation and/or by protecting species against extinction.
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source MEDLINE; Jstor Complete Legacy; PubMed Central
subjects Animals
Bateman Gradient
Bateman Principles
Biological Evolution
Diversification
Environmental Sciences
Evolution
Genetic Speciation
Invertebrates - genetics
Invertebrates - physiology
Macroevolution
Mating Preference, Animal
Protected species
Reproductive Isolation
Speciation
Species Diversity
Species extinction
Species richness
Vertebrates - genetics
Vertebrates - physiology
title Sexual selection predicts species richness across the animal kingdom
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