Community dynamics of rodents, fleas and plague associated with black-tailed prairie dogs

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dc.contributor.author Thiagarajan, Bala
dc.date.accessioned 2006-12-14T19:42:48Z
dc.date.available 2006-12-14T19:42:48Z
dc.date.issued 2006-12-14T19:42:48Z
dc.identifier.uri http://hdl.handle.net/2097/246
dc.description.abstract Black-tailed prairie dogs (Cynomys ludovicianus) are epizootic hosts for plague (Yersinia pestis); however, alternate enzootic hosts are important for the maintenance of the pathogen. We determined small rodents and prairie dog associations and quantified rodent and flea relationships in the presence and absence of prairie dog colonies and plague. We identified potential alternate hosts and flea vectors for the maintenance and transmission of plague in the prairie ecosystem. This is the first multi-year study to investigate associations between prairie dogs, rodents and fleas across the range of the black-tailed prairie dog. Few rodent species associated with black-tailed prairie dogs and were found to be highly abundant on colonies. Rodent species implicated in plague were present at study areas with and without plague. Peromyscus maniculatus and Onychomus leucogaster, two widely occurring species, were more abundant in areas with a recent history of plague. Flea community characteristics varied within each study area in the presence and absence of prairie dogs. Based on flea diversity on rodents, and the role of rodents and fleas in plague, we identified P. maniculatus and O. leucogaster and their associated fleas, Aetheca wagneri, Malareus telchinus, Orchopeas leucopus, Peromyscopsylla hesperomys, and Pleochaetis exilis to be important for the dynamics of sylvatic plague in our study areas. Peromyscus maniculatus and O. leucogaster were consistently infected with Bartonella spp., another blood parasite. Presence of prairie dog fleas on other rodents at both off and on prairie dog colonies suggests the potential for intra and interspecific transmission of fleas between rodent hosts, and between other small rodents and prairie dogs. en
dc.description.sponsorship NSF/NIH joint program in Ecology of Infectious Diseases (DEB-0224328); National Center for Environmental Research (NCER) STAR program of the US-EPA (R-82909101-0); USGS Species at Risk program. en
dc.format.extent 1234631 bytes
dc.format.mimetype application/PDF
dc.language.iso en_US en
dc.publisher Kansas State University en
dc.subject plague en
dc.subject rodent en
dc.subject fleas en
dc.subject prairie dogs en
dc.subject disease ecology en
dc.title Community dynamics of rodents, fleas and plague associated with black-tailed prairie dogs en
dc.type Dissertation en
dc.description.degree Doctor of Philosophy en
dc.description.level Doctoral en
dc.description.department Department of Biology en
dc.description.advisor Jack F. Cully, Jr. en
dc.subject.umi Biology, Ecology (0329) en
dc.date.published 2006 en
dc.date.graduationmonth December en


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