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Record W4411240691 · doi:10.1002/edn3.70139

Environmental <scp>DNA</scp> (<scp>eDNA</scp>) Quantitative Polymerase Chain Reaction‐Based Assays for Surveying 125 Taxa of Importance to North America

2025· article· en· W4411240691 on OpenAlexafffundabout
Valérie S. Langlois, Mark Louie D. Lopez, Michael J. Allison, Jacob J. Imbery, Julie Couillard, Neha Acharya‐Patel, Lauren C. Bergman, Matthew Bonderud, Marie‐Pier Brochu, Marie‐Lee Castonguay, Lauren Coombe, Anna H. Dema, Emma T. Groenwold, Hajeong Lee, Gaibor Gonzales Mariela Isabel, Graeme K. Knowles, Fidji Sandré, Tuan Anh To, René L. Warren, Cecilia L. Yang, İnanç Birol, Caren C. Helbing

Bibliographic record

VenueEnvironmental DNA · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicEnvironmental DNA in Biodiversity Studies
Canadian institutionsCanada's Michael Smith Genome Sciences CentreUniversity of VictoriaInstitut National de la Recherche Scientifique
FundersNatural Sciences and Engineering Research Council of CanadaLiber Ero FoundationCanada Research ChairsGenome British ColumbiaGenome Canada
KeywordsPolymerase chain reactionBiologyGeneticsGene

Abstract

fetched live from OpenAlex

ABSTRACT Timely and accurate assessment of the presence of at‐risk or invasive species is critical for effective responses to climate change and human impacts. For example, at‐risk species are often difficult to find, while invasive species are often well established before their infiltration is detected using conventional surveying methods. However, all organisms release genetic material such as DNA into their surroundings, leaving traces of themselves that can be detected using environmental DNA (eDNA) methods. These approaches are powerful tools in the conservation toolbox, as they are transforming how risk assessments and the evaluation of mitigation and remediation effectiveness are done. Despite this, poorly performing tools hinder broad adoption of eDNA‐based detection methods, due in part to their associated high false negatives and false positives that can impair effective management decision‐making. iTrackDNA is a multi‐year, large‐scale applied research project that is addressing these concerns with researchers and end users from various sectors across North America. It is building end‐user capacity through innovative, accessible, socially responsible genomics‐based analytical eDNA tools for effective decision‐making by publishing 125 quantitative real‐time polymerase chain reaction (qPCR) primer/probe sets designed to detect key invertebrates, fish, amphibians, birds, reptiles, and mammals in coastal and inland ecosystems important to North America, with an emphasis on Canada. These 125 assays were designed to meet or exceed the new Canadian Standards Association (CSA) consensus‐based and multi‐stakeholder national standards for eDNA (CSA W214:21 and CSA W219:23). Herein, we describe how we applied eDNA assay design and validation approaches across a wide range of animal taxa to achieve compliance.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.160
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0010.002
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.002

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.013
GPT teacher head0.228
Teacher spread0.214 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations15
Published2025
Admission routes3
Has abstractyes

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