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A lake fauna in a shot-glass
Date:12/11/2011

can even be used to estimate population sizes. This is crucial in the monitoring of rare animals, where one often wants to know whether the population is large or small.

"The UN has agreed to halt the decline of biodiversity, but a prerequisite to do so is that we are capable of properly documenting the status of threatened species. Our new approach is a huge step forward making it cheaper and faster to monitor the endangered species, and thus prioritise efforts to the benefit of biodiversity at a broad scale," says Jos Kielgast.

The researchers have documented that DNA traces of animals are nearly ubiquitous in the freshwater environment and, as a proof-of-concept, these findings may have wider implications reaching disciplines far beyond threatened species monitoring. With DNA sequencing technology advancing at rapidly dropping costs, environmental DNA research is set to change from being merely a scientific curiosity to become an important tool in applied biology. It is for example conceivable that fishing quota may in the future be based on DNA traces rather than fish catches.


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Contact: PhD student, Philip Francis Thomsen
pfthomsen@snm.ku.dk
01-145-271-42046
University of Copenhagen
Source:Eurekalert

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