Learn about eDNA and pest management
All living things shed genetic material like hair, scales, skin and faeces into their local environment. This is known as environmental DNA (eDNA). Environmental DNA is used to monitor or detect species within an ecosystem – including organisms that shouldn’t be there. It can detect invasive species before their populations grow, helping to stop their spread.
Background information
Environmental DNA – article
eDNA explorers – discovering life in the lakes of Aotearoa – video
DNA extraction – article
Teaching resources
Using eDNA to detect and protect taonga freshwater species in Aotearoa – three-level reading guide: read a short article and answer questions – Word document
Draw as a scientist: read two articles about how scientists are using eDNA in novel ways and communicate an idea from one of the articles via artwork – Word document
Modelling eDNA in a marine ecosystem – teacher notes: simulate how eDNA can help to identify pest species – Word document
Modelling eDNA in a marine ecosystem – student worksheet – Word document
Species cards for modelling eDNA in a marine ecosystem – PDF
Species tokens for modelling eDNA in a marine ecosystem – PDF
DNA sequences for modelling eDNA in a marine ecosystem – PDF
What can DNA in the environment tell us about an ecosystem? – teacher instructions: use a journal article to actively research and answer questions about taxonomy and eDNA – Word document
What can DNA in the environment tell us about an ecosystem? – student questions: – Word document
What can DNA in the environment tell us about an ecosystem?: journal article – PDF
Diagram: Schallenberg, L., Wood, S., Pochon, X. & Pearman, J. (2020) What Can DNA in the Environment Tell Us About an Ecosystem? Frontiers for Young Minds. 8:150. doi: 10.3389/frym.2019.00150. Released under CC BY4.0.
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