A5102976514- Wildlife Ecology and Conservation
- Rangeland and Wildlife Management
- Ecology and Vegetation Dynamics Studies
- Animal Behavior and Welfare Studies
- Ecology and biodiversity studies
- Wildlife-Road Interactions and Conservation
- Animal Ecology and Behavior Studies
- Animal Disease Management and Epidemiology
- Bat Biology and Ecology Studies
- Avian ecology and behavior
- Species Distribution and Climate Change
- Fire effects on ecosystems
- Genetic and phenotypic traits in livestock
- Marine animal studies overview
- Archaeology and Natural History
- Animal Vocal Communication and Behavior
- Ruminant Nutrition and Digestive Physiology
- Amphibian and Reptile Biology
- Land Use and Ecosystem Services
- Insect and Pesticide Research
- Rangeland Management and Livestock Ecology
- Recreation, Leisure, Wilderness Management
- Fish Ecology and Management Studies
- Dermatological diseases and infestations
- Bird parasitology and diseases
East Foundation
2016-2024
Government of Malaysia
2020
African Wildlife Foundation
2014-2015
Animal and Plant Health Inspection Service
2008-2013
United States Department of Agriculture
2004-2013
Texas A&M University – Kingsville
2000-2010
National Wildlife Research Center
2009
University of Georgia
2004-2006
The Wildlife Society
2004
Texas Tech University
2004
The movement behavior of an animal is determined by extrinsic and intrinsic factors that operate at multiple spatio-temporal scales, yet much our knowledge comes from studies examine only one or two scales concurrently. Understanding the drivers across crucial for understanding fundamentals ecology, predicting changes in distribution, describing disease dynamics, identifying efficient methods wildlife conservation management.We obtained over 400,000 GPS locations wild pigs 13 different...
Abstract: Natural resource managers and agricultural producers are seeking innovative tools to minimize damages caused by rapidly expanding feral pig ( Sus scrofa ) populations. One tool that has received little scientific inquiry is the use of exclusion fences protect economically ecologically sensitive areas. Our objectives were evaluate ability electric fencing movements in a captive setting as well rangeland agriculture land. In captivity, we tested 1‐, 2‐, 3‐strand fence. our trial,...
Abstract Contact rates vary widely among individuals in socially structured wildlife populations. Understanding the interplay of factors responsible for this variation is essential planning effective disease management. Feral swine ( Sus scrofa ) are a species which pose an increasing threat to livestock and human health, little known about contact structure. We analyzed 11 GPS data sets from across United States understand ecological demographic on co‐location rates, proxy rates....
Strategic control and eradication programs for wild pigs (Sus scrofa) are being developed to help curtail the expanding populations of this invasive, alien species. Drop nets corral traps have a long history capturing multitude wildlife species, so we evaluated effectiveness efficiency these controlling in southern Oklahoma. We also suspended metal trap that provided real-time monitoring deployment capture animals. Effectiveness each type was estimated as proportion removed from total...
Spatial genetic structure in white-tailed deer (Odocoileus virginianus) has been examined at regional scales, but markers with the resolution to detect fine-scale patterns have appeared only recently. We used a panel of microsatellite DNA markers, radiotelemetry data, and visual observations marked study social high-density population (12–20 deer/km2). collected data on 229 adult females, 102 which were assigned 28 groups. Our results consistent conceptual model structure, where philopatric...
Abstract Evaluating temporal trends in habitat and behavioral responses is critical for conservation, yet long‐term monitoring studies are rare. We used a 35‐year dataset (1982–2017) to assess multiscale use selection by an endangered carnivore, the ocelot ( Leopardus pardalis ), South Texas, USA. time series of remotely sensed imagery map changes availability woody cover, ocelots that has diminished due anthropogenic development increased road infrastructure. Our objectives were...
Abstract Habitat selection by animals is a complex, dynamic process that can vary across spatial and temporal scales. Understanding habitat vital component of managing endangered species. Ocelots ( Leopardus pardalis ), medium-sized felid, overlap in their northern range with bobcats Lynx rufus ) coyotes Canis latrans all three species sharing similar space resource use. As the potential for competition between these carnivores high, understanding differences use effect competitors on...
Abstract Competition is a complex ecological process involving individual and community interactions at evolutionary time scales. Individuals within between species can compete through two mechanisms: exploitative interference competition. These mechanisms often co‐occur, making it difficult to develop mechanistic understanding of We used movement data from 19 GPS‐collared white‐tailed deer ( Odocoileus virginianus ) associated with an experimental cattle Bos taurus stocking event...
Reliable estimates of white-tailed deer (Odocoileus virginianus) population parameters are needed for effective management. We used radiotelemetry to compare survival and cause-specific mortality rates between male female present reproductive data a high-density herd in the central Appalachians West Virginia during February 1999–May 2002. recorded 343 winter captures. Our capture rate 78 fawns/100 adult females was similar visual observations known fawns winter. In-utero adults (≥1 year old)...
Sympatric ocelots (Leopardus pardalis) and bobcats (Lynx rufus) in South Texas show substantial overlap body size, food habits, habitat use. Consequently, we explore whether temporal niche partitioning may explain ocelot bobcat coexistence. We investigated the influence of sun angle, lunar illumination, maximum diurnal temperature on movement rates sympatric (n = 8) 6) using a combination high-frequency GPS locations bi-axial accelerometer data. demonstrated that data could be used to...
ABSTRACT White‐tailed deer ( Odocoileus virginianus ) browsing in forest regeneration sites can affect current and future stand structure species composition. Removal of social units (localized management) has been proposed as a strategy to alleviate overbrowsing systems. We conducted an experimental localized removal high‐density population the central Appalachians West Virginia, USA, during winter 2002. removed 51 within 1.1‐km 2 area that encompassed (14 ha). During summer following...
ABSTRACT In west‐central Texas, USA, abatement efforts for the gray fox ( Urocyon cinereoargenteus ) rabies epizootic illustrate difficulties inherent in large‐scale management of wildlife disease. The has been managed through a cooperative oral vaccination program (ORV) since 1996. Millions edible baits containing vaccine have distributed annually 16‐km to 24‐km zone around perimeter epizootic, which encompasses geographic area >4 × 10 5 km 2 . ORV successfully halted expansion into...
Wild boars (Sus scrofa) are increasing in abundance and geographic distribution throughout North America. Our objectives were to determine daily hourly activity patterns. We placed global-positioning-system collars on 25 wild from two sites southern Texas. at both displayed highly nocturnal patterns, during the dormant early growing season, increased with rising temperatures.
By definition, contact denotes the junction of at least two objects. In context disease transmission, implies interaction with potential to spread disease. Mischaracterization contacts may result in inaccurate estimates transmission rates. To collect more-accurate data among white-tailed deer (Odocoileus virginianus), we built a deer-borne detection system (DCDS) consisting camera and proximity logger installed on GPS (Global Positioning System) collar. We outfitted 26 adult male DCDSs...
Understanding the interrelationship of environmental and biological factors that influence population growth rates invasive Sus scrofa (Wild Pig) is a requisite for management species. Such information can be used to evaluate various types control ensure most cost-effective damage-abatement methods are used. We developed sex- age-structured model simulate general dynamics Wild Pigs in Texas. Our objectives were estimate potential statewide Pig population-growth Texas, identify parameters...
Abstract We present a comparison of woody browse availability and white-tailed deer (Odocoileus virginianus) use among clearcut interiors, skidder trail edges, mature forest an evaluation the relative importance aboitic factors in predicting browsing pressure within regenerating clearcuts central Appalachians West Virginia. sampled 810 1-m2 plots or adjacent to nine (8–19 ha) during summer 2001. Availability did not differ between interior for any species observed. Plots had less higher...
The deleterious effects of white-tailed deer (Odocoileus virginianus) on forest regeneration are well documented in many forested systems, but potential solutions to these problems remote landholdings limited number and scope. Localized management proposes that a persistent area (<2 km2) low density can be created by removing all individuals within matriarchal social groups deer. Our objective was assess the feasibility using localized as tool areas. We present comparison seasonal home-range...
Planimetric comparisons of home range sizes white-tailed deer (Odocoileus virginianus Zimmermann) from across their may not be appropriate due to regional differences in topography. We compare seasonal topographic diversity between male and female ranges the central Appalachians using percent increase planimetric areas as a measure. Mean size for all deer-seasons combined was 3.1 (range = 1.3–6.4). No occurred sexes or among seasons. The relatively low area lack variation seasons validates...