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Predicting the fate of eDNA in the environment and implications for studying biodiversity

Proceedings of the Royal Society. B, Biological sciences, 2019-11, Vol.286 (1915), p.20191409-20191409 [Peer Reviewed Journal]

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Title:
Predicting the fate of eDNA in the environment and implications for studying biodiversity
Author: Harrison, Jori B ; Sunday, Jennifer M ; Rogers, Sean M
Subjects: Review
Is Part Of: Proceedings of the Royal Society. B, Biological sciences, 2019-11, Vol.286 (1915), p.20191409-20191409
Description: Environmental DNA (eDNA) applications are transforming the standard of characterizing aquatic biodiversity via the presence, location and abundance of DNA collected from environmental samples. As eDNA studies use DNA fragments as a proxy for the presence of organisms, the ecological properties of the complex and dynamic environments from which eDNA is sampled need to be considered for accurate biological interpretation. In this review, we discuss the role that differing environments play on the major processes that eDNA undergoes between organism and collection, including shedding, decay and transport. We focus on a mechanistic understanding of these processes and highlight how decay and transport models are being developed towards more accurate and robust predictions of the fate of eDNA. We conclude with five recommendations for eDNA researchers and practitioners, to advance current best practices, as well as to support a future model of eDNA spatio-temporal persistence.
Publisher: England: The Royal Society
Language: English
Identifier: ISSN: 0962-8452
EISSN: 1471-2954
DOI: 10.1098/rspb.2019.1409
PMID: 31744434
Source: PubMed Central

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