Airborne eDNA reveals hidden wildlife in the Wheatbelt

8 Sept

Between March and April 2025, Wheatbelt NRM, in partnership with EnviroDNA and supported by dedicated citizen scientists, deployed 50 passive air-sampling eDNA devices across Brookton, Newdegate, Narembeen, Merredin, and Mukinbudin.

This innovative monitoring method uses environmental DNA (eDNA) to detect animals by collecting trace DNA they shed into the air. It offers a non-invasive, efficient way to gather biodiversity data, particularly valuable in fragmented ecosystems like the Wheatbelt, where endangered Eucalypt Woodlands patches persist among the farmland.

Key Findings:

No Chuditch (Western Quoll) DNA was detected — highlighting the species’ elusive nature or low local numbers
A high diversity of native birds and mammals was recorded, showing that even small woodland remnants support important biodiversity
All targeted vertebrate pest species were detected, underscoring the ongoing need for feral animal control in conservation efforts

These results reinforce the ecological importance of habitat continuity and Threatened Ecological Communities (TECs), which act as refuges for native species in agricultural landscapes.

What is eDNA air sampling?

Airborne eDNA sampling is a cutting-edge, non-invasive technique that complements traditional wildlife surveys. However, it does have limitations:

Not all species leave behind detectable DNA
Weather, environmental conditions, and timing can affect results
It provides a snapshot in time, not a complete species list

As noted by EnviroDNA, this technology is most effective when used alongside other tools like camera traps, acoustic monitors, and field observations.

Want to get Involved?

Wheatbelt NRM is NOW inviting landholders and residents to participate in the next phase of this project. Selected participants could win a free eDNA air-sampling survey on their property, in conjunction with funding for activities like fencing, revegetation, or feral animal control.

To learn more or to join our mailing list, contact Kate, Senior Project Delivery Officer at Wheatbelt NRM.

Email Kate

This project is proudly funded by the Australian Government’s Natural Heritage Trust and delivered by Wheatbelt NRM, a member of the Regional Delivery Partners panel.