eDNA

The eRNA detection method could one day be used to catch early warning signs of distress in wild ecosystems. 

Environmental DNA and climate change data suggest that vegetation scarcity led to the mass extinction of herbivore species, including Arctic mammoths.

The Scientist speaks with Trier University’s Henrik Krehenwinkel, whose group recently detected traces of hundreds of arthropod species from a sample of dried plants—in this case, the contents of a tea bag.

In a trio of studies, researchers report capturing and analyzing airborne environmental DNA from a wide variety of plants and animals, suggesting a new way of monitoring which terrestrial species are present in an area.

Studies The Scientist covered this year illustrate the expanding importance of genetic and genomic research in all aspects of life science, from ecology to medicine.

The Scientist spoke with University of Wollongong ecologist Dana Bergstrom about protecting the continent’s native plants and animals in the face of climate change and a growing human presence.

A proof-of-concept study uses eDNA in the air to detect mammals, expanding the technique beyond aquatic sampling.

Monitoring the comings and goings of aquatic life with traces of DNA in water has become an established biomonitoring technique, but scientists are now using environmental DNA to assess terrestrial animals.

In addition to detecting unseen organisms in the ocean, studies of environmental DNA can shed light on the genetic structure of marine populations.

Given the speed and efficiency of environmental (eDNA) sampling, a much larger portion of the sea can be screened, in a shorter time, for patterns of diversity.

Scientists examine floating traces of DNA left by fish to better understand New York’s aquatic life.

Environmental DNA is tracking down difficult-to-detect species, from rock snot in the U.S. to cave salamanders in Croatia.