2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/20/2019 | 11:15 AM - 11:30 AM | IMPROVING ESTIMATES OF RICHNESS, HABITAT ASSOCIATIONS, AND ASSEMBLAGE CHARACTERISTICS OF FRESHWATER GASTROPODS | 250 CF
IMPROVING ESTIMATES OF RICHNESS, HABITAT ASSOCIATIONS, AND ASSEMBLAGE CHARACTERISTICS OF FRESHWATER GASTROPODS
Freshwater gastropods are imperiled globally and are among North America’s most vulnerable major animal groups. Habitat loss and inadequate information about species distributions and assemblages impair efforts to conserve freshwater gastropods. Conservation efforts are also exacerbated by difficulty obtaining and using distributional data, which are required to assess habitat associations. We developed a gastropod-specific sampling protocol and used it to survey 110 sites from 24 subbasins in two major river basins in Wyoming. We also examined habitat associations of individual taxa and groups of taxa that co-occurred together more frequently than expected by chance. We found snails at most sites, even in regions where macroinvertebrates had previously been sampled but snails had not been recorded. Thus, we conclude that general macroinvertebrates surveys do not accurately reflect the diversity of freshwater gastropods. In most cases, we found that taxa from the same gastropod family co-occurred more frequently with taxa from different gastropod families. This resulted in different habitat associations for taxa within families. For diverse inconspicuous taxa, like freshwater gastropods, class-specific sampling methods and analyses of habitat associations based on co-occurring taxa rather than relatedness may facilitate conservation efforts.
- Invertebrate
- Monitoring
- Biodiversity
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Presenters/Authors
Charlotte Narr
(), Colorado State University, charlotte.narr@colostate.edu;
ASHA DISCLOSURE:
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Amy Krist
(), University of Wyoming, krist@uwyo.edu;
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