Environmental DNA, or eDNA, is a molecular sampling technology that collects information about organisms using DNA shed by them into their environment. While eDNA holds exciting potential to become an efficient, low-cost, non-invasive ecological monitoring method, a lack of standardization of approaches and purpose-built sampling equipment make it hard to compare results and determine its actual effectiveness across studies. Detection success and accuracy also vary greatly among species and environments, making standardization a challenge.
However, as eDNA moves toward becoming an industry standard method for species detection and management, the equipment is beginning to transition from largely do-it-yourself experimental contraptions to professionally engineered tools. For example, Smith-Root Inc. recently developed the first-ever purpose-built eDNA sampling system, which they call ANDe™. We’re also seeing an expansion of eDNA applications from mainly marine to freshwater and even terrestrial environments, although the latter still requires substantial growth.
As this nascent field develops, it is critical for the conservation tech community to explore and identify how eDNA applies to management needs, and to ensure that continued development meets those needs. Beyond indicating species presence, research so far suggests that eDNA can contribute to conservation by deepening understanding of population dynamics, resource usage, disease presence, invasion pathways of non-native species, and population genetics, to name a few. This indicates that it could be a critical tool for managing imperiled and invasive species.
If you're new to eDNA and genomics, check out our Tech Tutors episode "How Do I Use Portable Genomics in the Field?" featuring Ineke Knot. You'll also find a bank of resources on that page, including a handy glossary of terms in our collaborative notes document!
Does your work involve eDNA and genomics, or are you curious about incorporating this type of technology into your field or lab work? Start a discussion in our group forum!
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Am a conservation biologist/primatologist passionate about conservation of endangered species, biodiversity monitoring, climate change studies and local livelihoods
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Postdoc using genomics and ancient DNA to help conserve a critically endangered cockatoo species
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Assistant Professor of Anthropology and Biology at Boston University studying non-human primate genomics and evolution.
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Board of Directors, Skagit Fisheries Enhancement Group. Interests include AI applications supporting salmonid species recovery
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In 2014, when Mariah Pfleger volunteered to sift through water samples from Alabama’s Mobile River Basin, she wasn’t expecting to solve one of biology’s most frustrating missing fishes cases.
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Do you work on conserving Neotropical migratory birds? Do you need funding? Why not apply for a grant from the U.S. Fish and Wildlife Service through the Neotropical Migratory Bird Conservation Act's grant program? The...
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Dr. Claude Miaud, Professor at the Ecole Pratique des Hautes Etudes, is a pioneer of eDNA research. He describes how a species’ DNA can be detected in the environment in which that species is found. This monitoring...
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David Gruber, a National Geographic Emerging Explorer, is a marine biologist working to develop fluorescent proteins into modulatable probes with neurobiological and medical applications. In his talk for the WWF Fuller...
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Article
Environmental DNA (eDNA) is nuclear or mitochondrial DNA that is released from an organism into the environment. Sources of eDNA include secreted faeces, mucous, gametes, shed skin, hair and carcasses. In this article,...
2 November 2015
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Description | Activity | Replies | Groups | Updated |
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Ah! Well you're in luck.. We're doing acoustics first thing next year. Late January some time, so in good time for your field season. We also had the audiomoth team give a... |
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eDNA & Genomics | 4 years 5 months ago | |
Hi Emily, Rachel has some practical suggestions about rigging your current centrifuge up to fit the small tubes. What do you think - vIable? 1) If you're... |
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eDNA & Genomics | 6 years 1 month ago | |
Interesting new article on in-the-field DNA analysis. |
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eDNA & Genomics | 6 years 7 months ago | |
This could be huge for monitoring territorial species, not to mention have the potential to reduce the number of... |
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eDNA & Genomics | 8 years 3 months ago | |
Please share your experiences and how you are using eDNA. |
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eDNA & Genomics | 8 years 3 months ago | |
There will be an eDNA talk at the Mares Conference, February 1st to 5th 2016, Olhão, Portugal The talk is titled: "Species detections in environmental DNA using... |
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eDNA & Genomics | 8 years 3 months ago | |
Article about Claude Miaud's presentation at the Fuller Symposium: https://www.wildlabs.net/resources/thought-pieces/biodiversity-drop-water-new-opportunity-edna |
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eDNA & Genomics | 8 years 4 months ago | |
Thank you for sharing! |
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eDNA & Genomics | 8 years 5 months ago | |
Dear eDNA community, Take a look at this eDNA news blog: http://www.spygen.com/blog/ |
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eDNA & Genomics | 8 years 5 months ago | |
eDNA is a complex topic and getting a start in the field can be intimidating. However, this excellent review from 2014 can be very... |
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eDNA & Genomics | 8 years 5 months ago |