ArticleProceedings of the National Academy of Sciences of the United States of America2020
Disproportionate extinction of South American mammals drove the asymmetry of the Great American Biotic Interchange.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
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- The Trichinella Super-Pangenome Reveals the Evolution of Encapsulation and Predicted Host-Parasite Protein Interactions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Diverging selection on body size in specialist terrestrial mammals.Nature ecology & evolution · 2026Article
- Reviewing the Great American Biotic Interchange: climate change as a trigger for biodiversity dispersal.Proceedings. Biological sciences · 2025Review
- Two major ecological shifts shaped 60 million years of ungulate faunal evolution.Nature communications · 2025Article
- Challenges in estimating species' age from phylogenetic trees.Global ecology and biogeography : a journal of macroecology · 2024Article
- DeepDive: estimating global biodiversity patterns through time using deep learning.Nature communications · 2024Article
- Phylogenetic congruence of Plasmodium spp. and wild ungulate hosts in the Peruvian Amazon.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2024Article
- Climate change and long-term human behaviour in the Neotropics: an archaeological view from the Global South.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Review
- A global phylogeny of butterflies reveals their evolutionary history, ancestral hosts and biogeographic origins.Nature ecology & evolution · 2023Article
- Asymmetric migration dynamics of the tropical Asian and Australasian floras.Plant diversity · 2023Article
- Diversification dynamics in the Neotropics through time, clades, and biogeographic regions.eLife · 2022Article
- Satellite DNA in Neotropical Deer Species.Genes · 2021Article
- QnAs with Juan Carrillo.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Disproportionate extinction of South American mammals drove the asymmetry of the Great American Biotic Interchange.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
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Abstract
The interchange between the previously disconnected faunas of North and South America was a massive experiment in biological invasion. A major gap in our understanding of this invasion is why there was a drastic increase in the proportion of mammals of North American origin found in South America. Four nonmutually exclusive mechanisms may explain this asymmetry: 1) Higher dispersal rate of North American mammals toward the south, 2) higher origination of North American immigrants in South America, 3) higher extinction of mammals with South American origin, and 4) similar dispersal rate but a larger pool of native taxa in North versus South America. We test among these mechanisms by analyzing ∼20,000 fossil occurrences with Bayesian methods to infer dispersal and diversification rates and taxonomic selectivity of immigrants. We find no differences in the dispersal and origination rates of immigrants. In contrast, native South American mammals show higher extinction. We also find that two clades with North American origin (Carnivora and Artiodactyla) had significantly more immigrants in South America than other clades. Altogether, the asymmetry of the interchange was not due to higher origination of immigrants in South America as previously suggested, but resulted from higher extinction of native taxa in southern South America. These results from one of the greatest biological invasions highlight how biogeographic processes and biotic interactions can shape continental diversity.
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