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Cave Species Richness Hotspots
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Caves with the most aquatic and terrestrial species. The number of species is highly dependent on sampling intensity, including the number of sampling trips.
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Gallery: Cave and Karst Maps
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Study Overview Maps and Foundational Datasets
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Single Grid Cell Endemics
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Many aquatic and terrestrial species are geographically rare, often found in a single cave. This map dis[;ays the geographic distribution of endemics scattered throughout the Appalachian LCC region.
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Gallery: Cave and Karst Maps
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Study Overview Maps and Foundational Datasets
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Single County Endemic Species
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Number of endemic species at the county level throughout the Appalachian LCC region.
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Gallery: Cave and Karst Maps
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Study Overview Maps and Foundational Datasets
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Land Use and Potential Risk Maps
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This folder contains maps of land use and potential risk.
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Classification and Mapping of Cave and Karst Resources
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Gallery: Cave and Karst Maps
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Probability of Presence - Terrestrial Species
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As a first step toward a predictive model of hotspots of species richness based on the predictive variables outlined above, the probabilities of each group within each grid cell were summed (excluding fish which do not occur at all in the Central Appalachians, making predictions impossible). The probabilities were summed to indicate locations that have one or more of the species groupings. Higher values indicate that more species
are likely to be found.
For the five terrestrial groups, the major hotspot is in northeast Alabama and south central Tennessee, mimicking the observed data. However, there are also hotspots in southwest Virginia, and central West Virginia that do not appear on the map of species richness.
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Gallery: Cave and Karst Maps
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Land Use and Potential Risk Maps
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Probability of Presence - Aquatic Species
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As a first step toward a predictive model of hotspots of species richness based on the predictive variables outlined above, the probabilities of each group within each grid cell were summed (excluding fish which do not occur at all in the Central Appalachians, making predictions impossible). The probabilities were summed to indicate locations that have one or more of the species groupings. Higher values indicate that more species are likely to be found.
The map of predicted aquatic species richness has broader swaths of species richness,
especially in the Interior Low Plateau.
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Gallery: Cave and Karst Maps
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Land Use and Potential Risk Maps
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Human Population Change by County from 2001-2010
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Human population change at the county level from 2001- 2010.
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Gallery: Cave and Karst Maps
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Land Use and Potential Risk Maps
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Protected Lands
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Protected lands within the Appalachian LCC region.
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Gallery: Cave and Karst Maps
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Land Use and Potential Risk Maps
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Modeling Input Maps
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Since there were too many species (710) or even genera (131) to analyze within the scope of this project, a functional ecological approach was utilized. The ranges of nine ecological groups were analyzed, including; predaceous ground beetles, millipedes, pseudoscorpions, springtails, spiders, amphipods, isopods (Asellidae), crayfish, and fish. Collectively, they are the best studied and most abundant stygobionts and troglobionts. Species within each group have very similar ecological roles, so
interesting generalities should emerge about the conditions under which they are found. The number of species in each group ranges from 164 (beetles) to four (fish).
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Classification and Mapping of Cave and Karst Resources
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Gallery: Cave and Karst Maps
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Amphipod Species Distribution by 1 km Grid
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Distribution of the amphipod species group by 1 kilometer grids throughout the Appalachian LCC region.
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Gallery: Cave and Karst Maps
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Modeling Input Maps