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Shedding DNA Clues

In this photo taken Wednesday, Feb. 11, 2015, a sign posted at an urban watershed trailhead reminds people to pick-up after their dogs to help maintain the health of the nearby salmon-bearing stream in Bellevue, Wash. Scientists are turning to environmental DNA, or eDNA, an emerging surveillance tool that detects the presence of an organism by analyzing cellular material such as urine, hair, feathers or skin cells that are left behind in the environment. From Asian carp in the Great Lakes basin to salamanders in Kentucky to great crested newts in the United Kingdom, the tool is helping biologists look for reclusive or rare imperiled species, monitor unwanted creatures or gauge the overall biodiversity of a lake or stream. (AP Photo/Elaine Thompson)
Detalii fotografie
Loc:     Bellevue, United States
Sursa:   AP / Mediafax Foto
Data:   3 Martie 2015
Dimensiuni:   5184 x 3456 (3.72 MB)
Aceasta imagine este din sursa AP Images. Mediafax Foto este unic distribuitor in Romania a fotografiilor AP Images. Descarcarea acestei imagini poate genera costuri suplimentare.
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