A5063772103- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Marine animal studies overview
- Rangeland and Wildlife Management
- Avian ecology and behavior
- Genetic and phenotypic traits in livestock
- Animal Ecology and Behavior Studies
- Genetic diversity and population structure
- Bird parasitology and diseases
- Environmental DNA in Biodiversity Studies
- Rabbits: Nutrition, Reproduction, Health
- Animal Vocal Communication and Behavior
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Animal Nutrition and Physiology
University of Calgary
2019-2024
University of British Columbia
2009-2017
Western Transportation Institute
2014-2017
Montana State University
2014-2017
Despite the popular perception of protected areas as vestiges remnant wilderness, behavior and activity patterns wildlife in these are still subject to many forms anthropogenic disturbances, such roads, recreation resource extraction. In Banff National Park, Alberta, efforts mitigate effects roads on using crossing structures (WC) have been successful for a number large mammal species, when measured reduction mortality from vehicle collisions or restoration population connectivity; however,...
ABSTRACT Crossing structures (i.e., underpasses and overpasses) are becoming a widespread approach to promote movement of wildlife across roads. Studies have shown that species select for different crossing structure designs, yet little is known about intraspecific variation differences among demographic classes) in preference. Using data on grizzly bear ( Ursus arctos ) Banff National Park (AB, Canada), we focused selection by family groups (adult females travelling with young) singleton...
Wolverines are vulnerable to multiple, widespread, increasing forms of human activity so have become an indicator conservation success or failure for northern ecosystems. Logistically difficult research, the last two decades seen marked changes in technology yielding new insights. We reviewed and synthesized this recent research asked: what known drivers wolverine populations distribution, is there consensus on mechanisms dynamics, how can knowledge inform conservation? From 156...
Abstract Protected areas are important in species conservation, but high rates of human-caused mortality outside their borders and increasing popularity for recreation can negatively affect wildlife populations. We quantified wolverine ( Gulo gulo ) population trends from 2011 to 2020 > 14,000 km 2 protected non-protected habitat southwestern Canada. conducted multi-species surveys using non-invasive DNA remote camera-based methods. developed Bayesian integrated models combining spatial...
Identifying factors that contribute to the risk of wildlife‐vehicle collisions (WVCs) has been a key focus wildlife managers, transportation safety planners and road ecologists for over three decades. Despite these efforts, few generalities have emerged which can help predict occurrence WVCs, heightening uncertainty under conservation, management decisions are made. Undermining this general understanding is use study area boundaries incongruent with major biophysical gradients, inconsistent...
ABSTRACT Range declines, habitat connectivity, and trapping have created conservation concern for wolverines throughout their range in North America. Previous researchers used population models observed estimates of survival reproduction to infer that current rates limit growth, except perhaps the far north where are lower. Assessing sustainability requires demographic abundance data expensive acquire therefore usually only achievable small populations, which makes generalization risky. We...
Abstract High individual detection success enables precise estimates of density and the ability to monitor trends in abundance for wolverine other low‐density species, information that is critical implementation assessment conservation measures. We evaluated a dataset included six different capture–recapture studies over large gradient ( Gulo gulo ) provide recommendations increasing detection. examined factors related bait station components, habitat, seasonal timing. Accounting variation...
Large carnivores are sensitive to human-caused extirpation due large home ranges, low population densities, and reproductive rates. Protected areas help maintain populations by acting as sources, but mortality, habitat displacement, edge effects occurring at protected area boundaries may reduce that function. The national parks Banff, Yoho, Kootenay in the Canadian Rocky Mountains refugia for carnivores, including wolverines (Gulo gulo (Linnaeus, 1758)). Despite growing conservation concern,...
Abstract Species at the periphery of their range are typically limited in density by poor habitat quality. As a result, central–marginal hypothesis (CMH) predicts decline genetic diversity populations toward species' range. Grizzly bears ( Ursus arctos ) once ranged throughout most North America but have been extirpated from nearly half former range, mainly south. They considered species risk even Canada's remote North, where they occupy northernmost edge continental distribution...
Wolverine den in snowy areas with boulders or woody debris at below tree line montane western North America. They have naturally low reproductive rates, a fidelity to denning areas, and sensitivity human presence during denning. The goal was synthesize existing ecological information for wolverine identify risks from the categories of timing, distance, footprint, pattern use, frequency use. authors suggest commercial tenure holders private users keep recreation low-risk category minimize...
Abstract Wolverine distribution contracted along the southern periphery of its range in North America during 19th and 20th centuries due primarily to human influences. This history, with low densities, sensitivity climate change, concerns about connectivity among fragmented habitats spurred recent US federal listing threatened status special concern Canada. To help inform large scale landscape connectivity, we collected 882 genetic samples genotyped at 19 microsatellite loci. We employed...
ABSTRACT Wolverines ( Gulo gulo ) are a circumboreal species that has experienced substantial range reduction worldwide. In Canada, the wolverine been extirpated entirely from east, and prairie regions in west. The province of Alberta holds south‐central portion wolverines' Canadian range, there they have designated as Data Deficient since 2001 due to historical lack information. Our aim was provide first approximation abundance estimate at provincial scale inform science‐based management...