The future of biodiversity monitoring and conservation utilizing environmental DNA

Deiner, Kristy; Yamanaka, Hiroki; Bernatchez, Louis

doi:10.1002/edn3.178

Cited by 66 publications

(62 citation statements)

References 27 publications

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“…Therefore, more research is needed to understand the ecology of listed species. To increase data collection and gain knowledge on species occurrence, or support monitoring at banks, environmental DNA (eDNA) might be used [65,66]. eDNA is defined as 'genetic material obtained directly from environmental samples (soil, sediment, water, etc.)…”

Section: Challenges To Standardized Metricsmentioning

confidence: 99%

Metrics and Equivalence in Conservation Banking

Grimm

2021

Land

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Offsets are increasingly used to compensate for unavoidable development impacts on species and habitats. Many offset programs pursue no net loss, but research on the success of these programs is lacking, including research on conservation banking’s success in conserving protected species under the US Endangered Species Act. This article provides a case study analysis of two conservation banks in the state of California, comparing the conservation gains provided by banks with the losses from development impacts. It provides an analysis of credits and metrics to determine whether the gains are equal to the losses in terms of type, condition, and amount. Results do show that the gains exceed the losses in terms of acreage. However, the program uses indirect metrics (acreage), and the equivalence of the losses and gains, besides habitat type and size, is not reflected. Banks provide a baseline in their documentation and conduct monitoring of species abundance and habitat quality, but they do not use it to measure additional conservation gains. More detailed metrics and transparent indices to certify the acres in production could allow for a quantification of conservation benefits and an evaluation of program success. However, selecting standardized metrics is challenging because they need to be species-specific to reflect the goal of species recovery, and still be operational in practice.

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Section: Challenges To Standardized Metricsmentioning

confidence: 99%

Metrics and Equivalence in Conservation Banking

Grimm

2021

Land

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“…Although the first step in any ecological study is the correct identification of organisms in the focal system, there are numerous challenges in conducting biodiversity inventories (Bik et al 2012;Bohmann et al 2014;Taberlet et al 2018;Deiner et al 2021). Traditional surveys involving morphological classification and other techniques provide essential data, including abundance information.…”

Section: Introductionmentioning

confidence: 99%

“…However, many taxa remain difficult to detect and describe due to a combination of their microscopic or cryptic natures, collection logistics, lack of taxonomic expertise and labour-intensive morphological assessments, leading to uncertain species identifications and biodiversity estimates. Rapid, effective and standardised approaches are needed to guide more detailed investments and cost-effectively complement morphological data for comprehensive management through improved biodiversity information (Bik et al 2012;Bohmann et al 2014;Rees et al 2014;Taberlet et al 2018;Deiner et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Multiple organisms can be identified simultaneously from genetic material extracted from environmental samples (e.g. water, air and sediment) by sequencing and analysing specific marker genes using primers that target their conserved flanking regions (Taberlet et al 2018;Deiner et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Environmental DNA has numerous advantages, offers high-throughput presence, absence and relative abundance data, and can improve representation of microscopic or cryptic taxa (Bik et al 2012;Bohmann et al 2014;Taberlet et al 2018;Deiner et al 2021). Environmental DNA metabarcoding is low-impact, efficient, cost-effective, rapid and replicable.…”

Section: Introductionmentioning

confidence: 99%

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18S rRNA amplicon sequence data (V1–V3) of the Bronx river estuary, New York

Ingala¹,

Werner²,

Fitzgerald³

et al. 2021

MBMG

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Characterising and monitoring biological diversity to foster sustainable ecosystems is highly recommended as urban centres rapidly expand. However, much of New York City’s biodiversity remains undescribed, including in the historically degraded, but recovering Bronx River Estuary. In a pilot study to identify organisms and characterise biodiversity patterns there, 18S rRNA gene amplicons (V1–V3 region), obtained from river sediments and surface waters of Hunts Point Riverside and Soundview Parks, were sequenced. Across 48 environmental samples collected over three seasons in 2015 and 2016, following quality control and contaminant removal, 2,763 Amplicon Sequence Variants (ASVs) were identified from 1,918,463 sequences. Rarefaction analysis showed sufficient sampling depth, and community composition varied over time and by substrate at the study sites over the sampling period. Protists, plants, fungi and animals, including organisms of management concern, such as Eastern oysters (Crassostrea virginica), wildlife pathogens and groups related to Harmful Algal Blooms, were detected. The most common taxa identified in river sediments were annelid worms, nematodes and diatoms. In the water column, the most commonly observed organisms were diatoms, algae of the phylum Cryptophyceae, ciliates and dinoflagellates. The presented dataset demonstrates the reach of 18S rRNA metabarcoding for characterising biodiversity in an urban estuary.

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Environmental DNA as an emerging tool in botanical research

Johnson

Freeland

Parducci

et al. 2023

American J of Botany

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Over the past quarter century, environmental DNA (eDNA) has been ascendant as a tool to detect, measure, and monitor biodiversity (species and communities), as a means of elucidating biological interaction networks, and as a window into understanding past patterns of biodiversity. However, only recently has the potential of eDNA been realized in the botanical world. Here we synthesize the state of eDNA applications in botanical systems with emphases on aquatic, ancient, contemporary sediment, and airborne systems, and focusing on both single-species approaches and multispecies community metabarcoding. Further, we describe how abiotic and biotic factors, taxonomic resolution, primer choice, spatiotemporal scales, and relative abundance influence the utilization and interpretation of airborne eDNA results. Lastly, we explore several areas and opportunities for further development of eDNA tools for plants, advancing our knowledge and understanding of the efficacy, utility, and cost-effectiveness, and ultimately facilitating increased adoption of eDNA analyses in botanical systems. K E Y W O R D Sancient botanical eDNA, aquatic botanical eDNA, botanical eDNA, eDNA, organism derived botanical eDNA, review

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The future of biodiversity monitoring and conservation utilizing environmental DNA

Cited by 66 publications

References 27 publications

Metrics and Equivalence in Conservation Banking

Metrics and Equivalence in Conservation Banking

18S rRNA amplicon sequence data (V1–V3) of the Bronx river estuary, New York

Environmental DNA as an emerging tool in botanical research

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