A5070352282- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Rangeland and Wildlife Management
- Genetic and phenotypic traits in livestock
- Animal Behavior and Reproduction
- Conservation, Biodiversity, and Resource Management
- Ruminant Nutrition and Digestive Physiology
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Soil Carbon and Nitrogen Dynamics
- Insect Utilization and Effects
- Avian ecology and behavior
- Bioenergy crop production and management
- Animal Vocal Communication and Behavior
- Agricultural Economics and Policy
- Primate Behavior and Ecology
Mississippi State University
2023
University of British Columbia
2015
University of Saskatchewan
2009-2013
Dalhousie University
2010
Density is a fundamental driver of many ecological processes including habitat selection. Theory on density-dependent selection predicts that animals should be distributed relative to profitability habitat, resulting in reduced specialization (i.e. generalization) as density increases and competition intensifies. Despite mounting empirical support for using isodars describe coarse-grained (interhabitat) animal movements, we know little how affects fine-grained resource within habitats [e.g....
Movement away from an area or social group in response to increasing density (density-dependent dispersal) is known for most species; why it evolves fundamental our understanding of ecology and evolution. However, we have yet fully appreciate how individuals varying conditions (e.g., age sex) might differently consider effects (quorum) when deciding disperse not, scale dependence their sense quorum. We tracked movements all a naturalized population feral horses (Equus ferus caballus; Sable...
Fine-scale spatial variation in genetic relatedness and inbreeding occur across continuous distributions of several populations vertebrates; however, the basis observed is often left untested. Here we test hypothesis that prior observations patterns genetics for an island population feral horses (Sable Island, Canada) were result dynamics, itself based heterogeneity underlying habitat quality. In order to assess how structuring related habitat, used hierarchical cluster analysis water...
There is a need to achieve sustainable agricultural production secure food, fiber, and fuel for growing global population. Climate-smart (CS) actions (no-till cover crops) can reduce carbon emissions promote soil organic (SOC) storage. Contemporary voluntary markets provide producers with monetary incentive adopt CS actions. However, SOC–yield dynamics under are not well known, making it difficult judge whether additional income from credits will offset potential losses yield income. We...
Identifying the existence of population sinks is critical for conservation and management. However, because density-dependent dispersal, can sometimes be masked by immigration events, especially during phases growth. We present a large-scale, empirical demonstration within-population source-sink dynamics using feral horses (Equus ferus caballus) Sable Island National Park Reserve, Nova Scotia, Canada, as model. tracked fates movements 98.7% female (n = 190–237) across 3 demographic clusters...
Young animals in a broad range of taxa solicit care from their parents with begging displays, which are used at least partly for competition among brood or litter mates. The effect other offspring on an individual's own display varies across studies, however, increasing its intensity some, but not changing, even decreasing it, others. One possible reason this discrepancy is that the potential pay-off more intense depends only how intensely littermates begging, also long individual has been...
Abstract: Anthropogenic edge effects, whereby disturbance strength increases in proximity to ecotone boundaries, are known strongly affect individual species but we lack a general understanding of how they vary by species, type and regional context. We deployed 46 camera-trap stations for total 3545 trap-days at two sites Sulawesi, Indonesia, obtaining 937 detections five vertebrate species. Anoa ( Bubalus spp.) were more abundant near edges, booted macaque Macaca ochreata ) red jungle fowl...