| survey of chronic sinusitis-induced skull anomalies in desert bighorn sheep. | bone anomalies were found in 20% of 630 skulls from desert bighorn sheep (ovis canadensis) representing populations of california bighorn (o canadensis californiana), lower california bighorn (o canadensis cremnobates), mexican bighorn (o canadensis mexicana), and nelson bighorn (o canadensis nelsoni) that are native to arizona, california, nevada, new mexico, and utah. the anomalies were extremely diverse, ranging from osteonecrosis within the matrix of the paranasal sinuses to extensive lysis ... | 1981 | 7327996 |
| the distribution of dermacentor hunteri and anaplasma sp. in desert bighorn sheep (ovis canadensis). | the ixodid tick dermacentor hunteri has been collected intermittently this century, primarily from desert bighorn sheep (ovis canadensis). anaplasma spp. are intraerythrocytic rickettsial parasites of ungulates and are vectored in the western united states by ticks of the genus dermacentor. we tested the hypotheses that d. hunteri would be found infesting all populations of desert bighorn, and that all infested populations would be seropositive for anaplasma sp. dermacentor hunteri was found on ... | 1997 | 9057693 |
| infectious disease survey of gemsbok in new mexico. | exotic wildlife can introduce new diseases or act as reservoirs of endemic diseases. on white sands missile range, new mexico (usa), significant declines in populations of native ungulates generally correspond to increases in range and population density of the exotic gemsbok (oryx gazella gazella), introduced beginning in 1969. we surveyed gemsbok in 2001 for exposure to a variety of diseases potentially important for native ungulates. high seroprevalence was found for malignant catarrhal fever ... | 2003 | 14733271 |
| the rise and fall of psoroptic scabies in bighorn sheep in the san andres mountains, new mexico. | between 1978 and 1997, a combination of psoroptic scabies (psoroptes spp.), mountain lion (puma concolor) predation, and periodic drought reduced a population of native desert bighorn sheep (ovis canadensis) in the san andres mountains (sam), new mexico, from >200 individuals to a single ewe. in 1999, this ewe was captured, ensured to be psoroptes-free, and released back into the sam. eleven radio-collared rams were translocated from the red rock wildlife area (rrwa) in new mexico into the sam r ... | 2005 | 16244062 |