A5051340424- Wildlife Ecology and Conservation
- Animal Behavior and Welfare Studies
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Animal Disease Management and Epidemiology
- Genetic and phenotypic traits in livestock
- Ecology and biodiversity studies
- Medicine and Dermatology Studies History
- Environmental DNA in Biodiversity Studies
- Rangeland and Wildlife Management
- Rangeland Management and Livestock Ecology
- Multidisciplinary Science and Engineering Research
- UAV Applications and Optimization
- Remote Sensing and LiDAR Applications
- Video Surveillance and Tracking Methods
- Molecular Biology Techniques and Applications
- Animal Vocal Communication and Behavior
- Insect and Arachnid Ecology and Behavior
- Human-Animal Interaction Studies
- Identification and Quantification in Food
- Animal testing and alternatives
- Digital Imaging for Blood Diseases
- Bat Biology and Ecology Studies
- Advanced Neural Network Applications
- Animal Nutrition and Physiology
Duke University
2013-2024
Wildlands Network
2020-2024
Statistical Research (United States)
2024
SAS Institute (United States)
2015-2022
Wildlife Information Liaison Development
2022
North Carolina State University
2017
Fauna and Flora International
2001
Abstract Monitoring free‐ranging animals in their natural habitat is a keystone of ecosystem conservation and increasingly important the context current rates loss biological diversity. Data collected from individuals endangered species inform policies. Conservation professionals assume that these data are reliable—that whom representative physiology, ecology, behavior populations which they drawn. In last few decades, there has been an enthusiastic adoption invasive techniques for gathering...
Abstract Forty‐six female black rhino were immobilized 113 times in the Sinamatella Intensive Protection Zone, Zimbabwe, from August 1992 to October 1997. The effects of immobilization on inter‐calving interval (ICI), calving rate (calves/female/year), conception and calves born/year assessed. mean ICI ( n = 17) was 40.24 ± 4.96 months. There a significant linear relationship between number immobilizations preconception (PCI) duration ICI; further investigations made overcome possible...
Acquiring reliable data on large felid populations is crucial for effective conservation and management. However, felids, typically solitary, elusive nocturnal, are difficult to survey. Tagging following individuals with VHF or GPS technology the standard approach, but costs high these methodologies can compromise animal welfare. Such limitations restrict use of techniques at population landscape levels. In this paper we describe a robust technique identify sex individual pumas from...
Abstract An objective, non‐invasive technique was developed for identifying individual black rhino from their footprints (spoor). Digital images were taken of left hind spoor tracks (spoor pathways) 15 known in Hwange National Park, Zimbabwe. Thirteen landmark points manually placed on the image and them, using customized software, a total 77 measurements (lengths angles) generated. These subjected to discriminant canonical analyses. Discriminant analysis all animals, employing 30 with...
Apex predator populations are in decline around the world. Many exist at low density and elusive, making acquisition of reliable data on their numbers distribution a considerable challenge. The Amur tiger (Panthera tigris altaica) is largest five extant sub-species tiger. single most significant, contiguous population, an estimated 550 animals, exists Russian Far East, with smaller far eastern Sino-Russian border. For last few decades, active efforts part Chinese authorities have encouraged...
ABSTRACT The Amur tiger ( Panthera tigris altaica ) population in China, once widespread, is now reduced to an estimated 20 individuals widely dispersed over a large area. Chinese government making concerted efforts restore this from the contiguous Russian population. However, they face challenge finding effective monitoring technique. We report on development of robust, non‐invasive and cost‐effective technique identify sex tigers snow footprints. Between December 2011 2012, we collected...
The cheetah (Acinonyx jubatus) is Africa's most endangered large felid and listed as Vulnerable with a declining population trend by the IUCN(1). It ranges widely over sub-Saharan Africa in parts of Middle East. Cheetah conservationists face two major challenges, conflict landowners killing domestic livestock, concern range contraction. Understanding latter remains particularly poor(2). Namibia believed to support largest number cheetahs any country, around 30%, but estimates from 2,905(3)...
To protect endangered species and understand extinction threats, we need effectivemonitoring techniques. Biologists have documented around one million species, which represent only 1–10% of all those on earth. Less quantified, however, is how human activity elevates local rates, particularly in vulnerable endemic populations.1 Furthermore, existing methods for monitoring are variable effectiveness. One approach to attach telemetry devices wildlife,2 but this can negative effects the animal,...
The study of large carnivores in semi-arid ecosystems presents inherent challenges due to their low densities, extensive home ranges, and elusive nature. We explore the potential for synthesis traditional knowledge (i.e. art tracking) modern technology address conservation wildlife research these challenging environments. Our focuses on African lion ( Panthera leo ) Central Kalahari region Botswana as a model system demonstrate this integrative approach. Combining GPS tracking San trackers’...
Routinely censusing rhinoceros' populations is central to their conservation and protection from illegal killing. In Namibia, both white (Ceratotherium simum) black (Diceros bicornis) rhinoceros occur on private land, in the latter case under a custodianship program of Namibian Ministry Environment Tourism (MET). Black custodian landowners are responsible for rhinoceroses land required report regularly MET. Monitoring imposes financial burden custodians yet many techniques used involve...
Background As a landscape architect and major seed disperser, the lowland tapir ( Tapirus terrestris ) is an important indicator of ecological health certain habitats. Therefore, reliable data regarding populations are fundamental in understanding ecosystem dynamics, including those associated with Atlantic Forest Brazil. Currently, many population monitoring studies use invasive tagging radio or satellite/Global Positioning System (GPS) collars. These techniques can be costly unreliable,...
Abstract Radio-collaring is widely used as a monitoring tool in the conservation of black rhinoceros Diceros bicornis . We examined rates and causes radio-transmitter collar failure on rhino Sinamatella Intensive Protection Zone (IPZ), Zimbabwe, between September 1993 February 2000. Two designs, hose strap, were fitted immobilized rhinos four main collaring operations. Eighty nine collars monitored: 28 61 strap. Within 12 months placement, all had failed. Of strap collars, 73 per cent those...
Abstract For those vertebrate species that create sufficiently complex footprints, identifying individuals from their footprints promises to be a noninvasive technique of great potential for wildlife studies and conservation, but with statistical challenges. Various approaches employing identification appear in the literature, doubt often remains as information contained therefore reliability procedures. represented by landmarks, we propose using pre‐assigned measures shape size...
Recognition of animals via images their footprints is a non-invasive technique recently adopted by researchers interested in monitoring endangered species. One the challenges that they face extraction features from these images, which are required for this approach. These points along boundary curve footprints. In paper, we propose an innovative extracting curves depth images. We formulate problem identification footprint as pattern recognition stochastic process over manifold. This...
The cheetah (Acinonyx jubatus) is Africa's most endangered large felid and listed as Vulnerable with a declining population trend by the IUCN1. It ranges widely over sub-Saharan Africa in parts of Middle East. Cheetah conservationists face two major challenges, conflict landowners killing domestic livestock, concern range contraction. Understanding latter remains particularly poor2. Namibia believed to support largest number cheetahs any country, around 30%, but estimates from 2,9053...
Assessing the numbers and distribution of at-risk megafauna such as black rhino (Diceros bicornis) is key to effective conservation, yet data are difficult obtain. Many current monitoring technologies invasive target animals expensive. Satellite emerging a potential tool for very large (e.g., elephant) but detecting smaller species requires higher resolution imaging. Drones can deliver required speed monitoring, challenges remain in delivering automated systems where internet connectivity...
Many wildlife species have sex specific habitat requirements. Due to the unique requirements for birthing and raising offspring, female reproductive is often a limiting factor population has been identified in many as priority conservation. Therefore, ability detect where females persist on landscape identify these potential areas essential creating effective conservation strategies. Here we describe development of non-invasive method based track images collected at plate stations using...
Radio-collaring is widely used as a monitoring tool in the conservation of black rhinoceros Diceros bicornis. We examined rates and causes radio-transmitter collar failure on rhino Sinamatella Intensive Protection Zone (IPZ), Zimbabwe, between September 1993 February 2000. Two designs, hose strap, were fitted immobilized rhinos four main collaring operations. Eighty nine collars monitored: 28 61 strap. Within 12 months placement, all had failed. Of strap collars, 73 per cent those males 44...
Numerous species of Earth's biota are at risk extinction and wildlife conservation is more important than ever. Reliable baseline data essential for management to inform on the numbers distribution endangered species. A promising non-invasive cost-effective method monitoring Footprint Identification Technology (FIT). It lends itself both research as well citizen science can be combined with other collection methods. FIT extracts uses morphometrics from animal footprints create geometric...
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