Sarah Douglass, was announced as the 2021 Philip Smith Memorial Award Winner. Her submission was titled “Using environmental DNA (eDNA) to detect a rare freshwater mussel species, Salamander Mussel Simpsonaias ambigua, in the Embarras River, Illinois”. Sarah is an Malacologist with the Illinois Natural History Survey.
UBAP Ornithologist Asya Rahlin is conducting research on cryptic wetland birds utilizing eDNA. Join her as she recounts a hot, sticky day collecting samples at Volo Bog.
Read her Behind the Scenes
Environmental DNA (eDNA) is an emerging tool used to detect rare and difficult to detect species. A recent study by INHS PACE Lab herpetologists used radio telemetry to evaluate and improve the efficiency of this technique.
As part of a species reintroduction program, hatchling Alligator Snapping Turtles reared in captivity were tracked using radio telemetry to assess their survival. This work provided an ideal system for evaluating the efficacy and limitations of using eDNA to detect a bottom dwelling riverine turtle. At each radio location, water samples were collected as well as upstream and downstream of the turtle.
The researchers found that eDNA can be used to detect a benthic turtle species but that detection can be diminished by UV exposure from open canopy. This study shows the importance of continuing to use traditional methods such as radio telemetry to better understand the dynamics of eDNA in the environment.
Read the complete paper in Environmental DNA
UBAP Ornithologist Anastasia Rahlin received the Kushlan Research Award from the Waterbird Society to assist her research project entitled “Using environmental DNA sampling to determine heron and bittern occupancy in western and northern Michigan: a metagenomics approach.”
This work will improve knowledge of the ranges and population sizes of Black-crowned Night Herons, Yellow-crowned Night Herons, American Bitterns, and Least Bitterns and will inform conservation and management decisions for these rare and declining wetland birds.
UBAP Ornithologist Anastasia Rahlin presented a poster at the Ecological Society of America conference held in Portland, Oregon from August 6th-11th. The poster reported on the environmental DNA research being conducted in collaboration with Mark Davis and Matthew Niemiller to collect presence-absence data on cryptic rails in Northern Illinois. The project is testing environmental DNA for bird detection and comparing it to traditional playback surveys.
Rahlin, A.A., M.A. Niemiller, and M.A. Davis. Using environmental DNA sampling methods to determine cryptic wetland bird occupancy in Illinois.