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The Jollyville Plateau salamander, Eurycea tonkawae, inhabits springs and spring-runs in tributaries draining the Jollyville Plateau area of Travis and Williamson counties, Texas. The species is considered a "species of concern" by the U.S. Fish and Wildlife Service, and as such, it may be in need of concentrated conservation actions. A previous 2-year study by the City of Austin provided baseline water chemistry, sediment chemistry, habitat, and ecological data at salamander sites. Examination of 6 years of data at five salamander sites shows that salamander counts are declining at two sites. The declining counts appear to be related to habitat degradation due to urban development in the assumed watershed of the springs. Chemical water quality at the salamander sites has also degraded over this period. Data obtained during this period also indicate a detectable seasonal reproductive cycle that may be regulated by rainfall or springflow. Open Access See Extended description for more information.
Biology, Cave Ecology, Resource Management
City of Austin Watershed Protection and Development Review Department
Turner, Martha, "Jollyville salamander data analysis: 1997 – 2003" (2003). KIP Data Sets and Technical Reports. 93.