Alabama’s Biodiversity

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Presentation transcript:

Alabama’s Biodiversity Alabama leads the nation in freshwater biodiversity Alabama has the 5th most diversity overall in the nation Unfortunately, Alabama is 2nd in the number of taxa lost to extinction (Hawaii is #1) Alabama is 4th in number of at-risk taxa

Alabama Wildlife Species Status Extirpated/Conservation Action Underway Priority 1/Highest Conservation Status – Priority 2/High Conservation Status – Priority 3/Moderate Conservation Status – Priority 4/Low Conservation Concern – Priority 5/Lowest Conservation Concern –

Biodiversity Rankings Risk Endemism Extinction 1 California Hawaii 2 Texas Alabama 3 Arizona Nevada 4 New Mexico Florida 5 Utah Georgia

Rank by Organism 1 2 3 4 5 Rank Plants Mammals Birds Reptiles Amphibians Fishes 1 California Texas North Carolina Alabama 2 New Mexico Arizona Georgia Tennessee 3 Virginia 4 Oregon Florida Kentucky 5 Mississippi Citation: Bruce A. Stein. 2002. States of the Union: Ranking Biodiversity. Arlington, Virginia: NatureServe.

Alabama Wildlife Species Status Extinct – taxa that historically occurred in Alabama, but are no longer alive anywhere within their former distribution Extirpated – taxa that historically occurred in Alabama, but are no now absent; may be rediscovered in the state, or be reintroduced from populations existing outside the state

Reasons for Alabama’s Biodiversity

Reasons for Alabama’s Biodiversity

Alabama River Drainages Tennessee River Drainage Mobile River Drainage Gulf of Mexico Drainage - Pascagoula River (Escatawpa) - Florida Panhandle rivers (Perdido to Choctawhatchee - Appalachicola River (Chipola & Chattahoochee

Physiographic Provinces

Reasons for Alabma’s Biodiversity

Reasons for Alabama’s Biodiversity

Reasons Why Alabama’s Biodiversity is Imperiled Dams

Reasons Why Alabama’s Biodiversity is Imperiled Turkey Creek Jefferson Co., AL Sedimentation

Reasons Why Alabama’s Biodiversity is Imperiled Pollution Unnamed tributary to Turkey Creek Jefferson Co., AL

Reasons Why Alabama’s Biodiversity is Imperiled Habitat alteration and destruction Environmental Contaminants Invasive Species Disease Exploitation

Cave Crayfish – Orconectes austalis

Noturus munitus

Alabama Cave Shrimp Palaemonias alabamae

Alabama Cave Shrimp Distribution

Hering Cave

Hering Cave

Alabama Cavefish Speoplatyrhinus poulsoni

Typhlichthys subterraneus Speoplatyrhinus poulsoni

Palaemonias sp cf. alabamae Palaemonae sp. cf. alabamae Tuscumbia Cave Shrimp Palaemonias sp cf. alabamae

Alabama Cave Shrimp Palaemonias alabamae Tuscumbia Cave Shrimp Palaemonias sp cf. alabamae

Hering Cave

Limrock Blowing Cave

Cave Crayfish – Orconectes australis