Spiderwebs: The New Frontier in Environmental DNA Collection
By Editor • August 25, 2026 • 1 min read
In the quest to assess biodiversity and monitor ecosystems, scientists are turning to an unexpected source: spiderwebs. This innovative approach leverages environmental DNA (eDNA) to capture genetic material shed by various organisms, enabling researchers to detect both endangered and invasive species.
Recent studies have spotlighted spiderwebs as a significant eDNA reservoir, collecting not only the genetic remnants of spiders but also traces from their surroundings, including pollen and saliva. Joshua Newton, a molecular ecologist at Curtin University in Australia, has found that spiderwebs outperform traditional eDNA collection methods, such as soil and water samples, in identifying vertebrate species.
However, gathering this valuable data comes at a cost; Newton had to sacrifice approximately 40 spiderwebs in his research. To circumvent this issue, Angela McGaughran from New Zealand's University of Waikato has developed a novel solution: synthetic webs. These artificial constructs successfully collected eDNA from a variety of sources, including livestock and exotic birds, paving the way for more expansive and less invasive environmental monitoring efforts.
Source: www.technologyreview.com
