| rapid plant evolution in the presence of an introduced species alters community composition. | because introduced species may strongly interact with native species and thus affect their fitness, it is important to examine how these interactions can cascade to have ecological and evolutionary consequences for whole communities. here, we examine the interactions among introduced rocky mountain elk, cervus canadensis nelsoni, a common native plant, solidago velutina, and the diverse plant-associated community of arthropods. while introduced species are recognized as one of the biggest threat ... | 2015 | 26062439 |
| a mortality event in elk ( cervus elaphus nelsoni) calves associated with malnutrition, pasteurellosis, and deer adenovirus in colorado, usa. | this report describes clinical, necropsy, and ancillary diagnostic findings for a mortality event in rocky mountain elk ( cervus elaphus nelsoni) calves attributed to malnutrition, pasteurellosis, and an alimentary presentation of adenovirus hemorrhagic disease. | 2017 | 28328349 |
| brucellosis transmission between wildlife and livestock in the greater yellowstone ecosystem: inferences from dna genotyping. | the wildlife of the greater yellowstone ecosystem carries brucellosis, which was first introduced to the area by cattle in the 19th century. brucellosis transmission between wildlife and livestock has been difficult to study due to challenges in culturing the causative agent, brucella abortus . we examined b. abortus transmission between american bison ( bison bison ), rocky mountain elk ( cervus elaphus nelsoni), and cattle ( bos taurus ) using variable number tandem repeat (vntr) markers on dn ... | 2017 | 28118557 |
| detection of prion protein in the cerebrospinal fluid of elk (cervus canadensis nelsoni) with chronic wasting disease using protein misfolding cyclic amplification. | cerebrospinal fluid (csf) has been examined as a possible source for preclinical diagnosis of prion diseases in hamsters and sheep. the present report describes the detection of chronic wasting disease (cwd) in the csf of elk and evaluates its usefulness as an antemortem test for cwd. the csf from 6 captive and 31 free-ranging adult elk was collected at necropsy and evaluated for the presence of the abnormal isoform of the prion protein that has been associated with cwd (prp(cwd)) via protein mi ... | 2012 | 22621952 |
| efficacy of a low-dosage combination of butorphanol, azaperone, and medetomidine (bam) to immobilize rocky mountain elk. | we compared dosages of a combination of sedatives, which included butorphanol tartrate, azaperone tartrate, and medetomidine hcl (bam) in captive adult rocky mountain elk (cervus elaphus nelsoni). all three bam dosages (low, medium, and high) effectively immobilized elk and produced an adequate level of sedation in all subjects. induction times were similar among the three groups (mean ± sd: low=6.9 ± 1.1 min; medium=6.3 ± 0.9 min; high=4.7 ± 1.3 min). most elk became hypoxemic regardless of bam ... | 2014 | 24807358 |
| passive transfer of maternal gnrh antibodies does not affect reproductive development in elk (cervus elaphus nelsoni) calves. | gonadotropin-releasing hormone is intermittently released from the hypothalamus in consistent patterns from before birth to final maturation of the hypothalamic-pituitary-gonadal axis at puberty. disruption of this signaling via gnrh vaccination during the neonatal period can alter reproduction at maturity. the objective of this study was to investigate the long-term effects of gnrh-antibody exposure on reproductive maturation and function in elk calves passively exposed to high concentrations o ... | 2012 | 22541328 |
| detection of prpcwd in feces from naturally exposed rocky mountain elk (cervus elaphus nelsoni) using protein misfolding cyclic amplification. | chronic wasting disease (cwd) is a transmissible spongiform encephalopathy affecting captive and free-ranging cervids. currently, tests for cwd in live animals involve relatively invasive procedures to collect lymphoid tissue biopsies and examine them for cwd-associated, protease-resistant cervid prion protein (prp(cwd)) detected by immunohistochemistry (ihc). we adapted an ultrasensitive prion detection system, protein misfolding cyclic amplification (pmca), to detect prp(cwd) in rocky mountain ... | 2012 | 22493117 |
| novel combinations of nalbuphine and medetomidine for wildlife immobilization. | we formulated novel drug combinations of nalbuphine hcl and medetomidine hcl (nalmed), with or without azaperone tartrate, for use in immobilizing rocky mountain elk (cervus elaphus nelsoni) and potentially for other wildlife species. using the lowest tested nalbuphine dose (0.3 mg/kg) that produced sedation in elk, we initially evaluated a combination of nalbuphine, medetomidine, and azaperone (nalmed-a) for immobilizing adult elk. based on initial success, we then conducted follow-up trials to ... | 2014 | 25121404 |
| use of acepromazine and medetomidine in combination for sedation and handling of rocky mountain elk (cervus elaphus nelsoni) and black bears (ursus americanus). | we opportunistically evaluated a combination of acepromazine maleate and medetomidine hcl for use in sedating rocky mountain elk (cervus elaphus nelsoni) and black bears (ursus americanus) as an alternative to scheduled drug combinations. this combination was safe and effective with limitations inherent in its sedative rather than anesthetic properties. | 2014 | 25014907 |
| whole-genome sequences of odocoileus hemionus deer adenovirus isolates from deer, moose and elk are highly conserved and support a new species in the genus atadenovirus. | we present the first complete genome sequence of odocoileus hemionus deer adenovirus 1 (odadv-1). this virus can cause sporadic haemorrhagic disease in cervids, although epizootics with high mortality have occurred in california. odadv-1 has been placed in the genus atadenovirus, based on partial hexon, pviii and fibre genes. ten field isolates recovered from naturally infected mule deer (odocoileus hemionus), white-tailed deer (odocoileus virginiana) and moose (alces alces) from wyoming, black- ... | 2017 | 28809152 |