Description: <span style="font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;">Karst Zones are delineated areas that inform the likelihood of rare or endangered species being present. Each Karst Zone is delineated within the boundaries of an established Karst Fauna Region, primarily based on lithology (i.e., general physical characteristics of rock types). The Zone definitions are as follows:</span><div style="font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;"><ul><li><b>Karst Zone 1</b>. Areas known to contain endangered karst invertebrate species.</li><li><b>Karst Zone 2</b>. Areas having a high probability of suitable habitat for endangered or other endemic karst invertebrate species.</li><li><b>Karst Zone 3a</b>. Areas suitable for endangered karst invertebrate species but which have a low probability of containing endangered karst species because the habitat is occupied by other karst invertebrate species.</li><li><b>Karst Zone 3b</b>. Areas which have a low probability of containing endangered karst invertebrate species because they are poorly suited for karst invertebrate species.</li><li><b>Karst Zone 4a</b>. Areas suitable for karst invertebrate species but which do not contain endangered karst species because the habitat is occupied by other karst invertebrate species.</li><li><b>Karst Zone 4b</b>. Areas which do not contain karst invertebrate species.</li></ul></div>
Copyright Text: Veni G, Jones M. 2021. Statistical Analysis and Revision of Endangered Karst Species Distribution, Austin Area, Texas.
National Cave and Karst Research Institute Report of Investigation 10, Carlsbad, New Mexico.
Description: For the purpose of the Travis and Williamson Counties Karst Invertebrates Recovery Plan, Karst Fauna Regions (KFRs) are geographic areas delineated based on potential environmental and biological barriers or restrictions that control the distribution of karst invertebrates.<div><br /></div><div>Eleven formal KFRs occupied by federally endangered karst invertebrates were originally established by Veni (1992) and are revised here: Cedar Park, Central Austin, Georgetown, Jollyville Plateau, McNeil, North Hays County, North Williamson County, Post Oak Ridge, Rollingwood, Round Rock, and South Travis County. In this revision, the Cedar Park KFR has now been split into the East Cedar Park and West Cedar Park KFRs, and the McNeil and Round Rock KFRs have been combined. Additionally, eight informal KFRs have been defined here, which are occupied by non-listed karst invertebrates: Blanco-Cypress, Downtown Austin, Marble Falls, Pedernales, Pflugerville, South Bell County, South Fort Hood, and Undesignated (Veni and Jones 2021).</div>
Copyright Text: Veni G, Jones M. 2021. Statistical Analysis and Revision of Endangered Karst Species Distribution, Austin Area, Texas. National Cave and Karst Research Institute Report of Investigation 10, Carlsbad, New Mexico.