Ecologists have shown that the genetic material that species shed into their environments can reveal not only the presence of the species but also a broad range of information about the genetics of whole populations. This information can assist researchers in pinpointing the origin of a newly invasi
the researchers demonstrated that their methodology was successful in field sampling of invasive round goby fish throughout the Great Lakes and the New York Finger Lakes.
The breakthrough can also help scientists understand the demographics of imperiled species without requiring the physical capture of animals that are already rare and vulnerable. Species experiencing population declines can suffer from a loss of genetic diversity, and eDNA may allow researchers to detect those declines earlier, according to the first author of the study, Kara Andres.
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