ArticleScientific reports2020
Ancient DNA and high-resolution chronometry reveal a long-term human role in the historical diversity and biogeography of the Bahamian hutia.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed.
- Caribbean Islands facilitated the colonization of Western Hemisphere barn owls, yet experienced rampant extinction.Proceedings. Biological sciences · 2026Article
- A Holocene bat colony collapse highlights the importance of hot caves in the Caribbean.Biology letters · 2025Article
- Quantitative Analysis of Genomic DNA Degradation ofGels (Basel, Switzerland) · 2024Article
- Changes in parrot diversity after human arrival to the Caribbean.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Ancient DNA confirms diverse origins of early post-Columbian cattle in the Americas.Scientific reports · 2023Article
- Historical DNA from a rediscovered nineteenth-century paratype reveals genetic continuity of a Bahamian hutia (Biology letters · 2023Article
- Where the wild things were: intrinsic and extrinsic extinction predictors in the world's most depleted mammal fauna.Proceedings. Biological sciences · 2021Article
- Ancient DNA from the extinct Haitian cave-rail (Biology letters · 2021Article
- Ancient mitogenomics elucidates diversity of extinct West Indian tortoises.Scientific reports · 2021Article
- Bird populations and species lost to Late Quaternary environmental change and human impact in the Bahamas.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Paleodietary reconstruction of endemic rodents from the precolumbian Dominican Republic: Discriminating wild feeding behavior from diets linked to human niche construction activities.International journal of osteoarchaeologyArticle
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9 authors.
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Abstract
Quaternary paleontological and archaeological evidence often is crucial for uncovering the historical mechanisms shaping modern diversity and distributions. We take an interdisciplinary approach using multiple lines of evidence to understand how past human activity has shaped long-term animal diversity in an island system. Islands afford unique opportunities for such studies given their robust fossil and archaeological records. Herein, we examine the only non-volant terrestrial mammal endemic to the Bahamian Archipelago, the hutia Geocapromys ingrahami. This capromyine rodent once inhabited many islands but is now restricted to several small cays. Radiocarbon dated fossils indicate that hutias were present on the Great Bahama Bank islands before humans arrived at AD ~800-1000; all dates from other islands post-date human arrival. Using ancient DNA from a subset of these fossils, along with modern representatives of Bahamian hutia and related taxa, we develop a fossil-calibrated phylogeny. We found little genetic divergence among individuals from within either the northern or southern Bahamas but discovered a relatively deep North-South divergence (~750 ka). This result, combined with radiocarbon dating and archaeological evidence, reveals a pre-human biogeographic divergence, and an unexpected human role in shaping Bahamian hutia diversity and biogeography across islands.
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