Yellowstone wolf (Canis lupus) density predicted by elk (Cervus elaphus) biomass
نویسندگان
چکیده
منابع مشابه
Context dependence of elk (Cervus elaphus) vigilance and wolf (Canis lupus) predation risk
To assess the relationship between predation risk perceived by elk (Cervus elaphus L., 1758) as evidenced by vigilance, we conducted focal animal observations in elk winter range.We stratified our observations in Glacier National Park, Montana, USA, andWaterton Lakes National Park, Alberta, Canada, in valleys with three wolf (Canis lupus L., 1758) population levels (Saint Mary Valley: no wolf; ...
متن کاملEffects of predation risk on elk (Cervus elaphus) landscape use in a wolf (Canis lupus) dominated system
Food acquisition and predation avoidance are key drivers of herbivore behaviour. We investigated the interaction of top-down (predator) and bottom-up (food, fire, thermal) effects by measuring the relationship between wolf (Canis lupus L., 1758) predation risk perceived by elk (Cervus elaphus L., 1758) and elk landscape use. We conducted fecal pellet and wolf scat surveys in three valleyswith t...
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A naturally occurring outbreak of Mycobacterium bovis infection in captive wild elk (wapiti) in Montana was confirmed by mycobacteriologic examination. Twenty-eight of 143 elk responded to M. bovis purified protein derivative (PPD) tuberculin injected intradermally in the cervical region (SCT). The results of comparative cervical tuberculin skin tests conducted within 9 days of SCT revealed gre...
متن کاملEctoparasites from elk (Cervus elaphus nelsoni) from Wyoming.
Hides of nine elk, collected during the winter of 1986-1987 from the National Elk Refuge, Wyoming (USA) were examined for ectoparasites. Parasites recovered were mites, Psoroptes sp. (five elk); lice, Solenopotes ferrisi and Bovicola (Bovicola) longicornis (seven elk); and winter ticks, Dermacentor albipictus (nine elk). Three elk with severe scabies had an estimated 0.6 x 10(6), 3.8 x 10(6) an...
متن کاملAbomasal parasite syndrome in North American elk (Cervus elaphus canadensis).
CASE HISTORY An 18-month clinical course of chronic ill-thrift, weight loss and emaciation, and eventual death occurred in a group of 520 translocated elk of mixed age and sex. Translocation was carried out without regard to animal welfare or health risks associated with the translocation. Mortality was approximately 84% (436/520) despite supportive nutritional and medical treatment. PATHOLOG...
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ژورنال
عنوان ژورنال: Canadian Journal of Zoology
سال: 2015
ISSN: 0008-4301,1480-3283
DOI: 10.1139/cjz-2015-0002