Ancient DNA Reveals the Fate of the Flightless Island Hen
Author Information
Author(s): Groenenberg Dick S. J., Beintema Albert J., Dekker René W. R. J., Gittenberger Edmund
Primary Institution: National Museum of Natural History Naturalis
Hypothesis
Are Gallinula nesiotis and Gallinula comeri different species, and what is the status of Gallinula nesiotis?
Conclusion
The study concludes that Gallinula nesiotis is extinct and that Gallinula comeri now inhabits both Tristan da Cunha and Gough Island.
Supporting Evidence
- DNA sequencing showed that G. nesiotis and G. comeri are genetically distinct.
- G. nesiotis is confirmed to be extinct based on historical DNA evidence.
- Recent specimens from Tristan are identical to G. comeri from Gough, indicating introduction.
Takeaway
Scientists studied old and new DNA from island hens to find out if one type is extinct and discovered that one type is gone forever.
Methodology
DNA sequencing of historical and recently collected specimens was performed to analyze genetic differences.
Limitations
The study is limited by the small number of specimens and sequences analyzed.
Digital Object Identifier (DOI)
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