نتایج جستجو برای: 2002 forest composition around wolf canis lupus dens in eastern algonquin provincial park
تعداد نتایج: 17108054 فیلتر نتایج به سال:
Identifying the ecological dynamics underlying human-wildlife conflicts is important for the management and conservation of wildlife populations. In landscapes still occupied by large carnivores, many ungulate prey species migrate seasonally, yet little empirical research has explored the relationship between carnivore distribution and ungulate migration strategy. In this study, we evaluate the...
Research on large predator-prey interactions are often limited to the predators' primary prey, with the potential for prey switching in systems with multiple ungulate species rarely investigated. We evaluated wolf (Canis lupus) prey selection at two different spatial scales, i.e., inter- and intra-territorial, using data from 409 ungulate wolf-kills in an expanding wolf population in Scandinavi...
Progressive anthropogenic disturbance can alter ecosystem organization potentially causing shifts from one stable state to another. This potential for ecosystem shifts must be considered when establishing targets and objectives for conservation. We ask whether a predator-prey system response to incremental anthropogenic disturbance might shift along a disturbance gradient and, if it does, wheth...
BACKGROUND Sarcoptic mange, a parasitic disease caused by the mite Sarcoptes scabiei, is regularly reported on wolves Canis lupus in Scandinavia. We describe the distribution and transmission of this parasite within the small but recovering wolf population by analysing 269 necropsy reports and performing a serological survey on 198 serum samples collected from free-ranging wolves between 1998 a...
Centrality metrics evaluate paths between all possible pairwise combinations of sites on a landscape to rank the contribution of each site to facilitating ecological flows across the network of sites. Computational advances now allow application of centrality metrics to landscapes represented as continuous gradients of habitat quality. This avoids the binary classification of landscapes into pa...
Same place, different time, head up: Multiple antipredator responses to a recolonizing apex predator
Abstract Prey adjust their antipredator behavioral tactics to minimize the risk of an encounter with predators. Spatiotemporal responses prey predators have been reported, but nature response is not ubiquitous and it object increasing interest, especially considering recent recovery large carnivores in Europe, potential for elicit consequences at ecosystem level. We tested multiple by fallow de...
We assessed the relative importance of wilderness to gray wolf (Canis lupus) population dynamics over 50 years in a that 1) was long extant (i.e., not reintroduced or recolonized), 2) subject harvest our study area until recently, and 3) used both adjacent, mainly public, non-wilderness. analyzed survival radiocollared wolves (n = 756 collared-wolf tenures) during 1968–2018 Superior National Fo...
The Ethiopian wolf (Canis simensis) is the world's rarest canid; ≈500 wolves remain. The largest population is found within the Bale Mountains National Park (BMNP) in southeastern Ethiopia, where conservation efforts have demonstrated the negative effect of rabies virus on wolf populations. We describe previously unreported infections with canine distemper virus (CDV) among these wolves during ...
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