| sarcocystis sigmodontis n. sp. from the cotton rat (sigmodon hispidus). | sarcocystis sarcocysts were found in 3 of 4 cotton rats (sigmodon hispidus) from atlanta, georgia. sarcocysts were several centimetres long and were present only in skeletal muscles. the sarcocyst wall appeared thin (less than 1 micron), with minute projections in the light microscope. by transmission electron microscopy, the sarcocyst wall had 0.6-1.0 x 0.21-0.36-micron villar protrusions without microtubules. the metrocytes were 6.5 x 3.8 micron, and the bradyzoites were 8 x 2.7 micron. the sa ... | 1988 | 3138400 |
| natural occurrence and characterization of the lyme disease spirochete, borrelia burgdorferi, in cotton rats (sigmodon hispidus) from georgia and florida. | this is the first report of natural infection by borrelia burgdorferi in the cotton rat sigmodon hispidus. nine b. burgdorferi isolates were obtained from ear tissues, urinary bladders, or both, by culturing tissues in bskii medium. the rat from which the si-3 isolate was cultured was from the same site (sapelo island, georgia) as an infected cotton mouse peromyscus gossypinus and ixodes scapularis tick reported previously. the 8 b. burgdorferi isolates from rats in florida included 1 (ai-1) fro ... | 1995 | 7876974 |
| genetic heterogeneity of borrelia burgdorferi sensu lato in the southern united states based on restriction fragment length polymorphism and sequence analysis. | fifty-six strains of borrelia burgdorferi sensu lato, isolated from ticks and vertebrate animals in missouri, south carolina, georgia, florida, and texas, were identified and characterized by pcr-restriction fragment length polymorphism (rflp) analysis of rrf (5s)-rrl (23s) intergenic spacer amplicons. a total of 241 to 258 bp of intergenic spacers between tandemly duplicated rrf (5s) and rrl (23s) was amplified by pcr. msei and drai restriction fragment polymorphisms were used to analyze these ... | 2001 | 11427560 |
| effects of prescribed fire, supplemental feeding, and mammalian predator exclusion on hispid cotton rat populations. | predation and food resources can strongly affect small mammal population dynamics directly by altering vital rates or indirectly by influencing behaviors. fire may also strongly influence population dynamics of species inhabiting fire-adapted habitats because fire can alter food and cover availability. we used capture-mark-recapture and radio-telemetry studies to experimentally examine how supplemental feeding, mammalian predator exclusion, and prescribed fire affected survival, abundance, and r ... | 2011 | 21706331 |
| the rare ospc allele l of borrelia burgdorferi sensu stricto, commonly found among samples collected in a coastal plain area of the southeastern united states, is associated with ixodes affinis ticks and local rodent hosts peromyscus gossypinus and sigmodon hispidus. | the rare ospc allele l was detected in 30% of borrelia burgdorferi sensu stricto strains cultured from a tick species, ixodes affinis, and two rodent host species, peromyscus gossypinus and sigmodon hispidus, collected in a coastal plain area of georgia and south carolina, in the southeastern united states. | 2013 | 23220965 |
| free-ranging farm cats: home range size and predation on a livestock unit in northwest georgia. | this study's objective was to determine seasonal and diurnal vs. nocturnal home range size, as well as predation for free-ranging farm cats at a livestock unit in northwest georgia. seven adult cats were tracked with attached gps units for up to two weeks for one spring and two summer seasons from may 2010 through august 2011. three and five cats were tracked for up to two weeks during the fall and winter seasons, respectively. feline scat was collected during this entire period. cats were fed a ... | 2015 | 25894078 |