Interactions between cougars (Puma concolor) and gray wolves (Canis lupus) in Banff National Park, Alberta

Ecoscience ◽  
2007 ◽  
Vol 14 (2) ◽  
pp. 214-222 ◽  
Author(s):  
Andrea D. KORTELLO ◽  
Thomas E. HURD ◽  
Dennis L. MURRAY
Keyword(s):  
Canis Lupus ◽  
National Park ◽  
Puma Concolor ◽  
Gray Wolves ◽  
Banff National Park

Oslerus osleri (Metastrongyloidea; Filaroididae) in Gray Wolves (Canis lupus) from Banff National Park, Alberta, Canada

2013 ◽  
Vol 49 (2) ◽  
pp. 422-426 ◽  
Author(s):  
Guilherme G. Verocai ◽  
Danna M. Schock ◽  
Manigandan Lejeune ◽  
Amy L. Warren ◽  
Pádraig J. Duignan ◽  
...  
Keyword(s):  
Canis Lupus ◽  
National Park ◽  
Gray Wolves ◽  
Banff National Park

scholarly journals Table scraps: inter-trophic food provisioning by pumas

2012 ◽  
Vol 8 (5) ◽  
pp. 776-779 ◽  
Author(s):  
L. Mark Elbroch ◽  
Heiko U. Wittmer
Keyword(s):  
Canis Lupus ◽  
National Park ◽  
Puma Concolor ◽  
Large Carnivores ◽  
Food Provisioning ◽  
Ecological Functions ◽  
Natural Systems ◽  
Food Subsidies ◽  
Vultur Gryphus ◽  
Natural Communities

Large carnivores perform keystone ecological functions through direct predation, or indirectly, through food subsidies to scavengers or trophic cascades driven by their influence on the distributions of their prey. Pumas ( Puma concolor ) are an elusive, cryptic species difficult to study and little is known about their inter-trophic-level interactions in natural communities. Using new GPS technology, we discovered that pumas in Patagonia provided 232 ± 31 kg of edible meat/month/100 km 2 to near-threatened Andean condors ( Vultur gryphus ) and other members of a diverse scavenger community. This is up to 3.1 times the contributions by wolves ( Canis lupus ) to communities in Yellowstone National Park, USA, and highlights the keystone role large, solitary felids play in natural systems. These findings are more pertinent than ever, for managers increasingly advocate controlling pumas and other large felids to bolster prey populations and mitigate concerns over human and livestock safety, without a full understanding of the potential ecological consequences of their actions.

scholarly journals Gray Wolves, Canis lupus, Killed by Cougars, Puma concolor, and a Grizzly Bear, Ursus arctos, in Montana, Alberta, and Wyoming

2008 ◽  
Vol 122 (1) ◽  
pp. 76 ◽  
Author(s):  
Michael D. Jimenez ◽  
Valpa J. Asher ◽  
Carita Bergman ◽  
Edward E. Bangs ◽  
Susannah P. Woodruff
Keyword(s):  
United States ◽  
Canis Lupus ◽  
Ursus Arctos ◽  
Puma Concolor ◽  
Western United States ◽  
Grizzly Bear ◽  
Grey Wolf ◽  
Gray Wolves ◽  
Large Predators

Four cases where large predators caused Grey Wolf (Canis lupus) mortality are recorded. We describe two incidents of Cougars (Puma concolar) killing Wolves in Montana and one incident of a Cougar killing a Wolf in Alberta. We report the first recorded incident of a Grizzly Bear (Ursus arctos) killing a Wolf in the western United States.

scholarly journals River Otter (Lontra canadensis) Killed by Wolves (Canis lupus) during Winter in Northern Minnesota

2018 ◽  
Vol 131 (3) ◽  
pp. 252-253
Author(s):  
Thomas D. Gable ◽  
Steve K. Windels ◽  
Ian C. Rautio
Keyword(s):  
Canis Lupus ◽  
National Park ◽  
Lontra Canadensis ◽  
River Otter ◽  
Gray Wolves ◽  
Mammalian Predators ◽  
Voyageurs National Park

Few accounts exist of Gray Wolves (Canis lupus) killing small sympatric mammalian predators. In January 2017, we observed a River Otter (Lontra canadensis) that had been killed by wolves on the ice in Voyageurs National Park, Minnesota. This is one of only a few documented instances of wolves killing otters.

scholarly journals Breeding displacement in gray wolves (Canis lupus): Three males usurp breeding position and pup rearing from a neighboring pack in Yellowstone National Park

2021 ◽  
Author(s):  
Jeremy SunderRaj ◽  
Jack W. Rabe ◽  
Kira A. Cassidy ◽  
Rick McIntyre ◽  
Daniel R. Stahler ◽  
...  
Keyword(s):  
Canis Lupus ◽  
Yellowstone National Park ◽  
National Park ◽  
Dominance Hierarchy ◽  
Group Living ◽  
Female Mate Choice ◽  
Gray Wolves ◽  
Adult Females ◽  
Dominant Female ◽  
Territorial Group

Gray Wolves (Canis lupus) are territorial, group living carnivores that live in packs typically consisting of a dominant breeding pair and their offspring. Breeding tenures are relatively short and competitive, with vacancies usually occurring following a breeder’s death, and are often filled by unrelated immigrants or by relatives of the previous breeder. The frequency and conditions of active breeder displacements are poorly understood. Position changes in the dominance hierarchy are common yet rarely documented in detail. We describe a turnover in male breeding position in a wolf pack by males from a neighboring pack in mid-summer 2016 in Yellowstone National Park. Over the course of two months, three males from the Mollie’s pack displaced the breeding male of the neighboring Wapiti Lake pack, joined the pack’s two adult females, and subsequently raised the previous male’s four approximately three-month old pups. In the four years following the displacement (2017 to 2020), at least one of the intruding males has successfully bred with the dominant female and most years with a subordinate female (who was one of the pups at the time of displacement). The pack reared pups to adulthood each year. Male breeding displacements are likely influenced by male-male competition and female mate choice. These changes are the result of individuals competing to improve breeding position and may lead to increased pack stability and greater reproductive success. We report in detail on the behavior of a closely observed breeding displacement and we discuss the adaptive benefits of the change.

scholarly journals Social environment and genetics underlie body site‐specific microbiomes of Yellowstone National Park gray wolves ( Canis lupus )

2021 ◽  
Author(s):  
Alexandra L. DeCandia ◽  
Kira A. Cassidy ◽  
Daniel R. Stahler ◽  
Erin A. Stahler ◽  
Bridgett M. vonHoldt
Keyword(s):  
Social Environment ◽  
Canis Lupus ◽  
Yellowstone National Park ◽  
National Park ◽  
Body Site ◽  
Site Specific ◽  
Gray Wolves

scholarly journals Interactions of Brown Bears, Ursus arctos, and Gray Wolves, Canis lupus, at Katmai National Park and Preserve, Alaska

2004 ◽  
Vol 118 (2) ◽  
pp. 247 ◽  
Author(s):  
Tom S. Smith ◽  
Steven T. Partridge ◽  
John W. Schoen
Keyword(s):  
Canis Lupus ◽  
National Park ◽  
Ursus Arctos ◽  
Behavioral Plasticity ◽  
Additional Insight ◽  
Brown Bears ◽  
Gray Wolves ◽  
Katmai National Park

We describe several encounters between Brown Bears (Ursus arctos) and Gray Wolves (Canis lupus) that were observed at Katmai National Park and Preserve in southwest Alaska. Katmai Brown Bears and Gray Wolves were observed interacting in a variety of behavioral modes that ranged from agonistic to tolerant. These observations provide additional insight regarding the behavioral plasticity associated with bear-wolf interactions.

Leadership behavior in relation to dominance and reproductive status in gray wolves, Canis lupus

2002 ◽  
Vol 80 (8) ◽  
pp. 1405-1412 ◽  
Author(s):  
Rolf O Peterson ◽  
Amy K Jacobs ◽  
Thomas D Drummer ◽  
L David Mech ◽  
Douglas W Smith
Keyword(s):  
Travel Time ◽  
Parental Investment ◽  
Canis Lupus ◽  
Yellowstone National Park ◽  
National Park ◽  
Leadership Behavior ◽  
Scent Marking ◽  
Male And Female ◽  
Gray Wolves ◽  
Males And Females

We analyzed the leadership behavior of breeding and nonbreeding gray wolves (Canis lupus) in three packs during winter in 1997–1999. Scent-marking, frontal leadership (time and frequency in the lead while traveling), initiation of activity, and nonfrontal leadership were recorded during 499 h of ground-based observations in Yellowstone National Park. All observed scent-marking (N = 158) was done by breeding wolves, primarily dominant individuals. Dominant breeding pairs provided most leadership, consistent with a trend in social mammals for leadership to correlate with dominance. Dominant breeding wolves led traveling packs during 64% of recorded behavior bouts (N = 591) and 71% of observed travel time (N = 64 h). During travel, breeding males and females led packs approximately equally, which probably reflects high parental investment by both breeding male and female wolves. Newly initiated behaviors (N = 104) were prompted almost 3 times more often by dominant breeders (70%) than by nonbreeders (25%). Dominant breeding females initiated pack activities almost 4 times more often than subordinate breeding females (30 vs. 8 times). Although one subordinate breeding female led more often than individual nonbreeders in one pack in one season, more commonly this was not the case. In 12 cases breeding wolves exhibited nonfrontal leadership. Among subordinate wolves, leadership behavior was observed in subordinate breeding females and other individuals just prior to their dispersal from natal packs. Subordinate wolves were more often found leading packs that were large and contained many subordinate adults.

Wolf homesite attendance patterns

2004 ◽  
Vol 82 (9) ◽  
pp. 1512-1518 ◽  
Author(s):  
Marcel J Potvin ◽  
Rolf O Peterson ◽  
John A Vucetich
Keyword(s):  
Social Status ◽  
Canis Lupus ◽  
National Park ◽  
Prey Density ◽  
Isle Royale ◽  
Pack Size ◽  
Gray Wolves ◽  
Isle Royale National Park ◽  
Attendance Patterns ◽  
Size Number

Adult gray wolves, Canis lupus L., 1758, frequent den and rendezvous sites (homesites) during summer to bring food to pups and to ensure security of the pups. We monitored homesite attendance of several adult wolves from a single pack in Isle Royale National Park, Michigan, for 6 years. Pack size, number of pups, and prey density varied during the period of monitoring. Given the effect of prey density on wolf behavior, we predicted that wolf homesite attendance patterns would vary with prey density. We also examined the effects of varying pack size, social status, and number of pups on homesite attendance. Contrary to our expectations, prey density did not appear to be a significant predictor of homesite attendance statistics such as hours per day at the homesite or length of absence from the homesite. Furthermore, when prey density and social status remained the same, homesite attendance (hours/day) of individual wolves monitored for multiple years varied substantially. Our results show homesite attendance to be highly variable and not well predicted by prey density.

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