A Strategy for Conservation of Springsnails in Nevada and Utah, USA

Stevens, Lawrence E.; Holcomb, K. E.; Crookshanks, Chris; Sada, Donald W.; Jenness, Jeffrey S.; Szabo, Kristin

doi:10.3390/su14159546

Cited by 1 publication

(1 citation statement)

References 36 publications

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“…One example of a cryptic and taxonomically incomplete group of conservation concern are the freshwater snails of North America. Freshwater snails have limited dispersal abilities, narrow environmental niches, and often persist in geographically isolated habitats—all of which contribute to high levels of endemism and cryptic speciation (Hershler, Liu, & Howard, 2014; Johnson et al., 2013; Stevens et al., 2022; Young et al., 2021). This group is a focus of conservation due to pervasive habitat degradation of their native waters and competition with nonnative species invasions (Hershler, Liu, & Howard, 2014; Johnson et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous species detection and discovery with environmental DNA metabarcoding: A freshwater mollusk case study

Vanderpool,

Wilcox,

Young

et al. 2024

Ecology and Evolution

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Environmental DNA (eDNA) sampling is a powerful tool for rapidly characterizing biodiversity patterns for specious, cryptic taxa with incomplete taxonomies. One such group that are also of high conservation concern are North American freshwater gastropods. In particular, springsnails of the genus Pyrgulopsis (Family: Hydrobiidae) are prevalent throughout the western United States where >140 species have been described. Many of the described species are narrow endemics known from a single spring or locality, and it is believed that there are likely many additional species which have yet to be described. The distribution of these species across the landscape is of interest because habitat loss and degradation, climate change, groundwater mining, and pollution have resulted in springsnail imperilment rates as high as 92%. Determining distributions with conventional sampling methods is limited by the fact that these snails are often <5 mm in length with few distinguishing morphological characters, making them both difficult to detect and to identify. We developed an eDNA metabarcoding protocol that is both inexpensive and capable of rapid, accurate detection of all known Pyrgulopsis species. When compared with conventional collection techniques, our pipeline consistently resulted in detection at sites previously known to contain Pyrgulopsis springsnails and at a cost per site that is likely to be substantially less than the conventional sampling and individual barcoding that has been done historically. Additionally, because our method uses eDNA extracted from filtered water, it is non‐destructive and suitable for the detection of endangered species where “no take” restrictions may be in effect. This effort represents both a tool which is immediately applicable to taxa of high conservation concern across western North America and a case study in the broader application of eDNA sampling for landscape assessments of cryptic taxa of conservation concern.

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