vehicle (ORV) use and/or dumping Improving habitat by planting or encouraging native plant species Monitor the status of S. p. hefneri, examine ecological processes, and increase public awareness of S. p. hefneri habitat and instill stewardship. Species-level conservation action is as follows: Investigate components of both occupied and unoccupied marsh rabbit habitat and determine why rabbits are present or absent Maintain and improve the GIS database for S. p. hefneri information Conduct S. p. hefneri reintroductions from natural wild populations Utilize federal regulatory mechanisms for protection Federal activities may cause jeopardy for the total population Control or eliminate free-roaming cat populations near rabbit habitat Free-roaming cats are a major threat to rabbit survival, establishing a program throughout the Lower Keys to control free roaming cats can increase their survival and colonization of restored habitats Minimize road mortality by implementing slower speed zones and increase enforcement of existing zones, and by controlling poaching. See also List of organisms named after famous people (born 1900–1949) References Sylvilagus Endangered fauna of the United States Endemic fauna of Florida Mammals described in 1984 Playboy ESA endangered species