Results 201 to 210 of about 315,523 (239)
The Accuracy of GPS for Wildlife Telemetry and Habitat Mapping [PDF]
Journal of Applied Ecology, 2001 Summary Decision support tools used for vegetation management require accurate information on the spatial array of different plant communities and a herbivore’s grazing location. We tested the accuracy and precision of locations derived using the satellite navigation global positioning system (GPS).
Hulbert, IAR, French, J
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GPS Telemetry of Forest Elephants in Central Africa: Results of a Preliminary Study
African Journal of Ecology, 2001AbstractFew data exist on the ranging behaviour of forest elephants. A feasibility study on the use of GPS telemetry as a tool to study ranging, seasonal movements and distribution was implemented in the Dzanga‐Sangha and Nouabalé‐Ndoki National Parks Complex of Central African Republic and Congo. The study consisted of two parts – a thorough hand‐held
William Karesh
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An Investigation of GPS-Denied Navigation Using Airborne Radar Telemetry
2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2020A supplementary sensor being explored in the field of GPS-denied navigation is Synthetic Aperture Radar (SAR) with its resulting images. In contrast to passive, camera-based methods, SAR provides illumination of a scene, direct measurement of range, and can operate day and night or through incliment weather.
Colton Lindstrom +2 more
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Quantification and Accuracy of Activity Data Measured With VHF and GPS Telemetry
Wildlife Society Bulletin, 2006Quantifying activity budgets and determining the accuracy of behavioral data obtained by telemetry is essential to understand the behavior of animals that are difficult to observe. We fitted 8 captive white-tailed deer (Odocoileus virginianus) with VHF or GPS collars to determine the accuracy of VHF variable-pulse sensors and GPS dual-axis sensors and ...
Steeve D. Côté
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Inferred Spatial Use by Elephants Is Robust to Landscape Effects on GPS Telemetry [PDF]
South African Journal of Wildlife Research, 2010 Global Positioning System (GPS) telemetry provides data to study spatial utilization patterns of animals. Spatial uncertainty due to poor accuracy and fix rates, however, may detract from inferences based on such data. The exclusion of two-dimensional (2D) locations may improve such inferences, but the prevalence of 2D locations may be a factor of ...
Rudi J van Aarde
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Accuracy of GPS Telemetry Collar Locations with Differential Correction
The Journal of Wildlife Management, 1997Global Positioning System (GPS) units in telemetry collars provide an unbiased and precise estimate of animal locations. Under ideal conditions at least 50% of locations are expected to be within 40 m in uncorrected mode GPS, and within 5 m in differential mode GPS.
Ron Moen, John Pastor, Yosef Cohen
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GPS-based vehicle tracking with meteor-burst telemetry
Proceedings of MILCOM '94, 2002The Advanced Research Projects Agency (ARPA) has established the Advanced Meteor-Burst Test Bed (AMBTB) between NISE EAST in Charleston, South Carolina, and Rome Laboratory facilities in Verona, New York. This link has been used to demonstrate multi-media communications, including transmission of text and digitized voice messages.
R.I. Desourdis +7 more
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First ocelot (Leopardus pardalis) monitored with GPS telemetry
European Journal of Wildlife Research, 2006We report the first study to monitor ocelot (Leopardus pardalis) spatial patterns with Global Positioning System (GPS) telemetry. The study area was in southern Texas in areas of dense thornshrub (closed habitat) and open grasslands interspersed with small patches of dense thornshrub cover (open habitat).
Aaron M. Haines +3 more
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Wildlife Society Bulletin, 2017 ABSTRACT Studies using global positioning system (GPS) telemetry rarely result in 100% fix success rates (FSR), which may bias datasets because data loss is systematic rather than a random process. Previous spatially explicit models developed to correct for sampling bias
David C. Stoner +2 more
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Optimizing the Positioning of Wildlife Crossing Structures Using GPS Telemetry
Journal of Applied Ecology, 2018Abstract Development of transportation corridors has accelerated globally, with infrastructure projects being implemented across remote ecosystems, particularly in the tropics. Such developments can have negative impacts on wildlife and their ecosystems.
Guillaume Bastille-Rousseau +2 more
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