703 gastropod species are documented, with 74% classified as imperiled or extinct. The American Fisheries Society's Endangered Species Freshwater Gastropod Subcommittee produced this first conservation status review for freshwater snails of Canada and the United States in 2013. It provides taxonomic authority, state and province distributions, and conservation assessments.
Use Cases
- Analyze the relationship between conservation status categories (e.g., endangered, threatened, vulnerable) and geographic distribution by state or province.
- Map species richness and threat hotspots using the assigned state and province distribution data for each of the 703 taxa.
- Study recovery potential by linking species records to the provided examples of habitat recovery and resilience.
- Validate taxonomic lists and state-level occurrences against the compiled supporting literature references organized by location.
Strengths
- Covers 703 distinct gastropod species with documented conservation status.
- Provides state and province level distribution maps for each species.
- Includes a literature compilation with references organized by state, province, and region.
Limitations
- Exact geographic limits for species distributions are not provided, as considerable fieldwork is still required.
- The literature compilation is noted as not being comprehensive.
- Data reflects the 2013 assessment and may not include more recent population changes.
Provenance
- Source
- American Fisheries Society's Endangered Species Freshwater Gastropod Subcommittee.
- Collection Method
- Committee evaluation of conservation status using state and regional publications and expert assessment.
- Time Range
- Assessment published in 2013.
- Freshness
- null
- Geography
- Native freshwater gastropods of Canada and the United States.