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Interactions within and between clades shaped the diversification of terrestrial carnivores

Artikel i vetenskaplig tidskrift
Författare M. M. Pires
Daniele Silvestro
T. B. Quental
Publicerad i Evolution
Volym 71
Nummer/häfte 7
Sidor 1855-1864
ISSN 0014-3820
Publiceringsår 2017
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 1855-1864
Språk English
Länkar 10.1111/evo.13269
Ämnesord Carnivora, competition, diversification, fossils, mammals, north-american, taxonomic diversity, continental scales, species-diversity, ecological limits, competition, extinction, mammals, macroevolution, speciation, by 4. 0
Ämneskategorier Miljövetenskap

Sammanfattning

A longstanding debate in evolutionary biology and paleontology is whether ecological interactions such as competition impose diversity dependence on speciation and extinction rates. Here, we analyze the fossil record of terrestrial mammalian carnivores in North America and Eurasia using a Bayesian framework to assess whether their diversity dynamics were affected by diversity dependence within and between families (12 in Eurasia, 10 in North America). We found eight instances of within-clade diversity dependence suppressing speciation rates and detected between-clade effects increasing extinction rates in six instances. Diversity dependence often involved lineages that migrated between continents and we found that speciation was more responsive to diversity changes within the clade, whereas extinction responded to diversity of taxa in other clades. The analysis of the fossil record of Carnivora suggests that interactions within and between clades are associated with different speciation and extinction regimes, opening room for a broader theory of diversity dependence.

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