| modeling and mitigating winter hay bale damage by elk in a low prevalence bovine tuberculosis endemic zone. | wildlife causes extensive crop damage throughout much of north america and these shared feeds are a key risk factor in the transmission of diseases between wildlife and livestock, including bovine tuberculosis (tb). predicting wildlife use of agricultural crops can provide insight directed toward targeted disease mitigation at areas of potential indirect interaction. in this study, we quantified use of hay bales by elk (cervus canadensis) during the winter in southwestern manitoba, canada using ... | 2014 | 24486094 |
| field evaluation of three blood-based assays for elk (cervus canadensis) naturally infected with mycobacterium bovis. | diagnosis of mycobacterium bovis in wild populations is very challenging due to complications imposed by the use of traditional skin tests, poor sensitivity of gold standard tests which rely on culture of m. bovis from tissues and wide variations in severity of disease. various combinations of a lymphocyte stimulation test (lst), fluorescence polarization assay (fpa) and the cervid tb stat-pak were evaluated using two different validation approaches: a latent class analysis and classical statist ... | 2014 | 24315383 |
| density-dependent effects on group size are sex-specific in a gregarious ungulate. | density dependence can have marked effects on social behaviors such as group size. we tested whether changes in population density of a large herbivore (elk, cervus canadensis) affected sex-specific group size and whether the response was density- or frequency-dependent. we quantified the probability and strength of changes in group sizes and dispersion as population density changed for each sex. we used group size data from a population of elk in manitoba, canada, that was experimentally reduce ... | 2013 | 23326502 |
| identification of dorsal-spined larvae from free-ranging wapiti (cervus elaphus) in southwestern manitoba, canada. | dorsal-spined first-stage larvae recovered from feces of free-ranging wapiti (cervus elaphus) were passaged through snails (triodopsis multilineata) and two hand-raised white-tailed deer fawns (odocoileus virginianus). a total of 74 adult parelaphostrongylus tenuis were recovered from the fawns; no other protostrongylid nematodes were recovered. the study indicates that wapiti may be infected with natural infections of meningeal worm and pass larvae suitable for transmission to gastropod interme ... | 1989 | 2716114 |
| temporal variation in site fidelity: scale-dependent effects of forage abundance and predation risk in a non-migratory large herbivore. | large herbivores are typically confronted by considerable spatial and temporal variation in forage abundance and predation risk. although animals can employ a range of behaviours to balance these limiting factors, scale-dependent movement patterns are expected to be an effective strategy to reduce predation risk and optimise foraging opportunities. we tested this prediction by quantifying site fidelity of global positioning system-collared, non-migratory female elk (cervus canadensis manitobensi ... | 2013 | 23552985 |
| density-dependent habitat selection and partitioning between two sympatric ungulates. | theory on density-dependent habitat selection predicts that as population density of a species increases, use of higher quality (primary) habitat by individuals declines while use of lower quality (secondary) habitat rises. habitat partitioning is often considered the primary mechanism for coexistence between similar species, but how this process evolves with changes in population density remains to be empirically tested for free-ranging ungulates. we used resource-selection functions to quantif ... | 2014 | 24913777 |