| 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 |
| phenotypic and phylogenetic characterization of ruminal tannin-tolerant bacteria. | the 16s rrna sequences and selected phenotypic characteristics were determined for six recently isolated bacteria that can tolerate high levels of hydrolyzable and condensed tannins. bacteria were isolated from the ruminal contents of animals in different geographic locations, including sardinian sheep (ovis aries), honduran and colombian goats (capra hircus), white-tail deer (odocoileus virginianus) from upstate new york, and rocky mountain elk (cervus elaphus nelsoni) from oregon. nearly compl ... | 1998 | 9758806 |
| tannins as nutritional constraints for elk and deer of the coastal pacific northwest. | | 1999 | 10800474 |
| density-dependent effects on physical condition and reproduction in north american elk: an experimental test. | density dependence plays a key role in life-history characteristics and population ecology of large, herbivorous mammals. we designed a manipulative experiment to test hypotheses relating effects of density-dependent mechanisms on physical condition and fecundity of north american elk (cervus elaphus) by creating populations at low and high density. we hypothesized that if density-dependent effects were manifested principally through intraspecific competition, body condition and fecundity of fem ... | 2004 | 15586292 |
| dna-based identification of a hepatic trematode in an elk calf. | liver fluke infection was identified as a probable cause of clinical disease in an approximately 6-mo-old elk (cervus elaphus) in coastal oregon. clinical pathology and necropsy findings are described. the alcohol-fixed flukes that were submitted for identification were similar in size to fasciola hepatica, but their shape resembled fascioloides magna in that they lacked a distinctive anterior cone. a few structures consistent with the eggs of f. magna were observed in liver lesions, suggesting ... | 2007 | 17984277 |
| population density of north american elk: effects on plant diversity. | large, herbivorous mammals have profound effects on ecosystem structure and function and often act as keystone species in ecosystems they inhabit. density-dependent processes associated with population structure of large mammals may interact with ecosystem functioning to increase or decrease biodiversity, depending on the relationship of herbivore populations relative to the carrying capacity (k) of the ecosystem. we tested for indirect effects of population density of large herbivores on plant ... | 2009 | 19484268 |
| surveys for disease agents in introduced elk in arkansas and kentucky. | surveys for disease agents were conducted in introduced free-ranging elk (cervus elaphus nelsoni) in arkansas and kentucky. elk had been captured in colorado and nebraska and released in arkansas during 1981-1985. from 1997 through 2002 elk were captured in arizona, kansas, north dakota, new mexico, oregon, and utah and released in southeastern kentucky. specimens were collected from 170 hunter-killed elk in arkansas during 1998-2006, and 44 elk in kentucky during 2001-2004. significant findings ... | 2010 | 20090032 |
| lead poisoning of bald (haliaeetus leucocephalus) and golden (aquila chrysaetos) eagles in the u.s. inland pacific northwest region--an 18-year retrospective study: 1991-2008. | to determine risk factors and seasonal trends of lead poisoning in bald (haliaeetus leucocephalus) and golden (aquila chrysaetos) eagles, blood lead levels were evaluated in eagles admitted from the inland pacific northwest region of the united states to the raptor rehabilitation program, college of veterinary medicine at washington state university from 1991 to 2008. admissions were from washington (32 bald eagles, 27 golden eagles), northern idaho (21 bald eagles, 25 golden eagles), northeaste ... | 2010 | 21302758 |
| serosurvey for antibody to deerpox virus in five cervid species in oregon, usa. | five cervid species in oregon, usa were tested with a serum neutralization assay for antibody to deerpox virus (dpv). none of the 50 elk (cervus elaphus ssp. roosevelti and nelsonii) had detectable antibody. prevalence of antibody to dpv in the remaining species was: 52% (n=55) in black-tailed deer (odocoileus hemionus columbianus), 32% (n= 59) in mule deer (o. hemionus hemionus), and 36% (n=50) in columbian white-tailed deer (o. virginianus leucurus), with an overall antibody prevalence of 40.2 ... | 2013 | 23307387 |