| a serologic survey of mule deer and elk in utah. | sera from mule deer (odocoileus hemionus) and elk (cervus canadensis) in central and northern utah were tested for the prevalence of antibodies to 11 diseases communicable to man or domestic livestock. antibodies to francisella tularensis (at 1:20) were found in 47 of 88 (53.4%) elk and 1 of 89 (1.1%) deer. a screening slide agglutination test for titers to brucella (at 1:20) showed two reactors in elk but none in deer sera. no positive antibody titers were obtained in tests for anaplasmosis, co ... | 1978 | 105153 |
| yersiniae in the soil of an infected wapiti range. | yersinia enterocolitica was isolated from 10 of 121 soil samples from an area inhabitated by infected wapiti (cervus elaphus roosevelti) in northwest california. significantly (p less than 0.05) more soil samples from a forest habitat were infected, compared to soil samples from prairie habitats. soil was found infected with yersiniae only on dates for which rainfall in excess of 17 mm had occurred during the previous 7 days. | 1979 | 522222 |
| variation amongst the neutralizing epitopes of bluetongue viruses isolated in the united states in 1979-1981. | neutralizing epitopes present on field isolates of bluetongue virus (btv) serotypes 10, 11, 13 and 17 were evaluated with a panel of polyclonal and neutralizing monoclonal antibodies (mabs). a total of 91 field isolates were evaluated, including 15 isolates of btv-10, 29 isolates of btv-11, 26 isolates of btv-13, and 21 isolates of btv-17. the viruses were isolated from cattle, goats, sheep, elk and deer in idaho, louisiana, nebraska and, predominantly, california, in the years 1979, 1980 and 19 ... | 1992 | 1379766 |
| identification of genetic variation between strains of bluetongue virus serotype 11 using cdna probes. | recombinant plasmids containing inserts representing genome segments 2, 5, 6, 8, and 9 of bluetongue virus (btv) serotype 11, with tentative coding assignments for viral proteins p2, p5, ns1, ns2, and p6, respectively, have been used to study the genetic diversity within a btv serotype using northern blot hybridization. btv 11 strains were isolated in california, nevada, oklahoma, and mexico from elk, deer, and cattle. diversity was indirectly indicated in the btv 11 strains by comparisons of el ... | 1989 | 2543132 |
| serological survey for selected diseases in the endangered san joaquin kit fox (vulpes macrotis mutica). | blood from endangered san joaquin kit foxes (vulpes macrotis mutica) inhabiting the elk hills naval petroleum reserve, kern county, and the elkhorn plain, san luis obispo county, california, was collected in 1981, 1982 and 1984 and sera were tested for antibodies against 10 selected pathogens. proportions of kit fox sera containing antibodies against pathogens were: canine parvovirus, 100% in 1981-1982 and 67% in 1984; infectious canine hepatitis virus, 6% in 1981-1982 and 21% in 1984; canine di ... | 1988 | 2836636 |
| epidemiology of two orbiviruses in california's native wild ruminants: preliminary report. | between 1978 and 1983 we collected more than 1,500 serum samples from california's native black-tailed deer (odocoileus hemionus columbianus), 4 races of mule deer (o. h. sp.), tule elk (cervus elaphus nannodes), roosevelt elk (c. e. roosevelti), pronghorn antelope (antilocapra americana), california bighorn sheep (ovis canadensis californiana), peninsular bighorn sheep (o. c. cremnobates) and desert bighorn sheep (o. c. nelsoni) and analyzed them for agar gel precipitating (agp) antibodies to b ... | 1985 | 2989899 |
| prevalence of neutralizing antibody to jamestown canyon virus (california group) in populations of elk and moose in northern michigan and ontario, canada. | blood samples were collected from free-ranging elk (cervus elaphus) harvested in michigan's northern lower peninsula, from moose (alces alces) relocated from ontario's algonquin provincial park to michigan's upper peninsula, and from moose from michigan's isle royale national park. sera were tested by serum dilution neutralization tests in vero cell culture for neutralizing antibody to california serogroup viruses, in particular jamestown canyon (jc), la crosse/snowshoe hare (lac/ssh), and trivi ... | 1986 | 3503129 |
| serological evidence of california serogroup virus activity in oregon. | we wished to demonstrate evidence of the presence of california serogroup viruses in oregon and to test for the presence of certain other arboviruses in large ungulates. blood samples from black-tailed deer (odocoileus hemionus columbianus), mule deer (o. hemionus hemionus), and roosevelt elk (cervus elaphus roosevelti) from nine counties in oregon were tested by serum-dilution plaque reduction neutralization for antibody to california serogroup viruses, including snowshoe hare, california encep ... | 1987 | 3586196 |
| paratuberculosis in tule elk in california. | | 1981 | 7328012 |
| concurrent sick building syndrome and chronic fatigue syndrome: epidemic neuromyasthenia revisited. | sick building syndrome (sbs) is usually characterized by upper respiratory complaints, headache, and mild fatigue. chronic fatigue syndrome (cfs) is an illness with defined criteria including extreme fatigue, sore throat, headache, and neurological symptoms. we investigated three apparent outbreaks of sbs and observed another more serious illness (or illnesses), characterized predominantly by severe fatigue, that was noted by 9 (90%) of the 10 teachers who frequently used a single conference roo ... | 1994 | 8148452 |
| radiometric culture of mycobacterium avium paratuberculosis from the feces of tule elk. | to determine if mycobacterium avium paratuberculosis has persisted in tule elk (cervus elaphus nannodes) at point reyes national seashore (california, usa), 100 fresh fecal samples were collected. feces were cultured on a modified bactec 12b radiometric medium for detection of m. avium paratuberculosis. four samples, coming from two separate groups of elk tested positive for m. avium paratuberculosis. thus, a noninvasive technique was used to document the continued presence of m. avium paratuber ... | 1997 | 9249713 |
| ehrlichia spp. in cervids from california. | blood samples from six mule deer (odocoileus hemionus hemionus), 15 black-tailed deer (o. hemionus columbianus), and 29 elk (cervus elaphus nannodes) were assayed for human monocytic and human granulocytic ehrlichiosis (hge) by polymerase chain reaction (pcr), dna sequencing, and serology to determine whether or not cervids are involved in the maintenance of these potential human pathogens in california (usa). the deer were sampled in august to october 1992-95. the 29 tule elk from point reyes n ... | 1998 | 9813842 |
| direct and indirect contact rates among beef, dairy, goat, sheep, and swine herds in three california counties, with reference to control of potential foot-and-mouth disease transmission. | to estimate direct and indirect contact rates on livestock facilities and distance traveled between herd contacts. | 2001 | 11453490 |
| use of porcine zona pellucida (pzp) vaccine as a contraceptive agent in free-ranging tule elk (cervus elaphus nannodes). | the potential for the application of porcine zona pellucida (pzp) immunocontraception in wildlife population management has been tested over a 15 year period and promises to provide a useful wildlife management tool. these studies have provided evidence indicating that the use of pzp immunocontraception in wildlife: (i) is effective at both the physiological and population level (liu et al., 1989; kirkpatrick et al., 1996; turner et al., this supplement); (ii) is deliverable by remote means (kir ... | 2002 | 12220156 |
| testing for mycobacterium avium subsp. paratuberculosis infection in asymptomatic free-ranging tule elk from an infected herd. | forty-five adult tule elk (cervus elaphus nannodes) in good physical condition were translocated from a population located at point reyes national seashore, marin county (california, usa), to a holding pen 6 mo prior to release in an unfenced region of the park. because infection with mycobacterium avium subsp. paratuberculosis (mptb) had been reported in the source population, the translocated elk underwent extensive ante-mortem testing using three johne's disease assays: enzyme linked immunoso ... | 2003 | 12910759 |
| new ruminant hosts and wider geographic range identified for babesia odocoilei (emerson and wright 1970). | babesia odocoilei was found to infect two previously unknown host species, desert bighorn sheep (ovis canadensis nelsoni) and musk oxen (ovibos moschatus), both of which are members of the family bovidae. previously, b. odocoilei has been reported in only cervidae hosts. new geographic regions where b. odocoilei infections have not been reported previously include pennsylvania and new york, where fatal babesiosis has occurred in reindeer (rangifer tarandus tarandus); new hampshire, where elk (ce ... | 2005 | 16456156 |
| pathology and preliminary characterization of a parapoxvirus isolated from a california sea lion (zalophus californianus). | cutaneous pox-like lesions are a common complication in the rehabilitation of pinnipeds. however, the exact identity, taxonomy, and host range of pinniped parapoxviruses remain unknown. during a poxvirus outbreak in may 2003 in california sea lions (zalophus californianus) at a marine mammal rehabilitation facility, multiple raised, firm, 1-3-cm skin nodules from the head, neck, and thorax of one sea lion weanling pup that spontaneously died were collected. histologically, the nodules were chara ... | 2006 | 16699145 |
| mycobacterium avium subspecies paratuberculosis and mycobacterium avium subsp. avium infections in a tule elk (cervus elaphus nannodes) herd. | between 2 august and 22 september 2000, 37 hunter-killed tule elk (cervus elaphus nannodes) were evaluated at the grizzly island wildlife area, california, usa, for evidence of paratuberculosis. elk were examined post-mortem, and tissue and fecal samples were submitted for radiometric mycobacterial culture. acid-fast isolates were identified by a multiplex polymerase chain reaction (pcr) that discriminates among members of the mycobacterium avium complex (mac). histopathologic evaluations were c ... | 2006 | 17255437 |
| mineral deficiencies in tule elk, owens valley, california. | male tule elk (cervus elaphus nannodes) are susceptible to high rates of antler breakage in owens valley, california. we hypothesized that a mineral deficiency in the diet predisposed male elk to antler breakage. we analyzed elk antler, liver, and forage samples to identify mineral imbalances. we compared the mineral content of livers and antlers from elk in owens valley to samples taken from tule elk at grizzly island wildlife area, a population experiencing normal rates (<5%) of antler breakag ... | 2007 | 17347394 |
| influence of a large herbivore reintroduction on plant invasions and community composition in a california grassland. | despite many successful reintroductions of large mammalian herbivores throughout the world, remarkably little attention has focused on how these actions affect native and exotic vegetation at reintroduction sites. one such herbivore is tule elk (cervus elaphus nannodes), which was on the brink of extinction in the mid 1800s, but now has numerous stable populations due to intensive reintroduction efforts. here, we summarize results from a 5-year exclosure experiment that explored the effects of t ... | 2007 | 17391201 |
| effectiveness of action to reduce exposure of free-ranging california condors in arizona and utah to lead from spent ammunition. | california condors (gymnogyps californianus) released into the wild in arizona ranged widely in arizona and utah. previous studies have shown that the blood lead concentrations of many of the birds rise because of ingestion of spent lead ammunition. condors were routinely recaptured and treated to reduce their lead levels as necessary but, even so, several died from lead poisoning. we used tracking data from vhf and satellite tags, together with the results of routine testing of blood lead conce ... | 2008 | 19107211 |
| climate alters response of an endemic island plant to removal of invasive herbivores. | islands experience higher rates of species extinction than mainland ecosystems, with biological invasions among the leading causes; they also serve as important model systems for testing ideas in basic and applied ecology. invasive removal programs on islands are conservation efforts that can also be viewed as powerful manipulative experiments, but few data are available to evaluate their effects. we collected demographic and herbivore damage data for castilleja mollis pennell, an endangered pla ... | 2009 | 19769104 |
| prevalence, distribution, and diversity of salmonella enterica in a major produce region of california. | a survey was initiated to determine the prevalence of salmonella enterica in the environment in and around monterey county, ca, a major agriculture region of the united states. trypticase soy broth enrichment cultures of samples of soil/sediment (n = 617), water (n = 252), wildlife (n = 476), cattle feces (n = 795), and preharvest lettuce and spinach (n = 261) tested originally for the presence of pathogenic escherichia coli were kept in frozen storage and later used to test for the presence of ... | 2011 | 21378057 |
| corrected misidentification of first instars of the bot flies cephenemyia apicata and c. jellisoni, with a review of the biology and life history of both species. | first instars obtained from the uteri of host-seeking females, and compared with previously published descriptions of larvae collected from columbian black-tailed deer (odocoileus hemionus columbianus), revealed that larvae described as cephenemyia apicata bennett & sabrosky (diptera: oestridae) actually are c. jellisoni townsend. several new characters are added to supplement the original descriptions of the first instars of these species. collections of all larvae from deer autopsied during di ... | 2011 | 22168389 |
| male group size, female distribution and changes in sexual segregation by roosevelt elk. | sexual segregation, or the differential use of space by males and females, is hypothesized to be a function of body size dimorphism. sexual segregation can also manifest at small (social segregation) and large (habitat segregation) spatial scales for a variety of reasons. furthermore, the connection between small- and large-scale sexual segregation has rarely been addressed. we studied a population of roosevelt elk (cervus elaphus roosevelti) across 21 years in north coastal california, usa, to ... | 2017 | 29121076 |