Rodent ectoparasites from two locations in northwestern Florida

Area of Science:

• Zoology
• Ecology
• Parasitology

Background:

• Rodents serve as hosts for various ectoparasites, influencing disease transmission dynamics.
• Understanding ectoparasite communities on rodents is crucial for ecological and public health assessments.
• Florida's diverse ecosystems support a wide range of rodent and ectoparasite species.

Purpose of the Study:

• To document the species diversity and prevalence of ectoparasitic arthropods on rodents in two Florida locations.
• To identify notable ectoparasite records, including range extensions and new host-parasite associations.
• To assess the potential role of collected ectoparasites as vectors for zoonotic pathogens.

Main Methods:

• Ectoparasites were collected from rodents trapped between February and April 1999 at Tall Timbers Research Station and Panama City, Florida.
• Rodents were identified to species, and ectoparasites were classified to the lowest feasible taxonomic level.
• Arthropods from arboreal nests were also examined.

Main Results:

• A total of 19 ectoparasite species were recovered from 106 rodents at Tall Timbers and 13 species from 57 rodents in Panama City.
• Ixodes minor and Stenoponia americana were recorded, extending their known geographical and host distribution.
• Potential vectors for Rickettsia rickettsii and Borrelia burgdorferi, Dermacentor variabilis and Ixodes scapularis, were found at both sites.

Conclusions:

• The study highlights the significant ectoparasite diversity on rodents in these Florida locations.
• Extended geographical ranges for certain ectoparasites were confirmed, emphasizing the need for ongoing surveillance.
• The presence of potential tick vectors underscores the importance of monitoring zoonotic disease risks in the region.