Results 1 to 10 of about 315,523 (239)

Evaluation and telemetry-based detection of GPS spoofing effects on UAV navigation using software-defined radio [PDF]

Scientific Reports
This paper presents an experimental investigation into the vulnerabilities of autonomous drone navigation systems under GPS spoofing attacks using Software Defined Radio (SDR).
Raj Hakani, Abhishek Rawat, Manan Shah, Pavan Verma   +3 more
doaj   +2 more sources

Linking GPS Telemetry Surveys and Scat Analyses Helps Explain Variability in Black Bear Foraging Strategies. [PDF]

PLoS ONE, 2015
Studying diet is fundamental to animal ecology and scat analysis, a widespread approach, is considered a reliable dietary proxy. Nonetheless, this method has weaknesses such as non-random sampling of habitats and individuals, inaccurate evaluation of ...
Rémi Lesmerises, Lucie Rebouillat, Claude Dussault, Martin-Hugues St-Laurent   +3 more
doaj   +2 more sources

Backpack satellite transmitters reduce survival but not nesting propensity or success of greater sage‐grouse

Ecology and Evolution, 2023
Telemetry technology is ubiquitous for studying the behavior and demography of wildlife, including the use of traditional very high frequency (VHF) radio telemetry and more recent methods that record animal locations using global positioning systems (GPS)
Bryan S. Stevens, Courtney J. Conway, Cody A. Tisdale, Kylie N. Denny, Andrew Meyers, Paul Makela   +5 more
doaj   +1 more source

Tracking crocodylia: a review of telemetry studies on movements and spatial use

Animal Biotelemetry, 2023
Crocodylians are top predators that play key ecological roles in aquatic ecosystems. As in other groups of large predators, crocodylian populations are often impacted by habitat loss, habitat degradation or direct exploitation for commercial purposes or ...
Paulo Braga Mascarenhas-Junior, Jozelia Maria Sousa Correia, Pedro Ivo Simões   +2 more
doaj   +1 more source

Flight heights obtained from GPS versus altimeters influence estimates of collision risk with offshore wind turbines in Lesser Black-backed Gulls Larus fuscus

Movement Ecology, 2023
The risk posed by offshore wind farms to seabirds through collisions with turbine blades is greatly influenced by species-specific flight behaviour.
Daniel T. Johnston, Chris B. Thaxter, Philipp H. Boersch-Supan, Jacob G. Davies, Gary D. Clewley, Ros M. W. Green, Judy Shamoun-Baranes, Aonghais S. C. P. Cook, Niall H. K. Burton, Elizabeth M. Humphreys   +9 more
doaj   +1 more source

Benefits and biases of VHF and GPS telemetry: A case study of American alligator spatial ecology

Wildlife Society Bulletin, 2016
American alligators (Alligator mississippiensis) historically occupied freshwater habitats such as isolated wetlands, lakes, rivers, bottomland swamps, and floodplains in coastal and inland sites.
Gregory M. Skupien, Kimberly M. Andrews, Terry M. Norton   +2 more
doaj   +1 more source

Identifying and correcting spatial bias in opportunistic citizen science data for wild ungulates in Norway

Ecology and Evolution, 2021
Many publications make use of opportunistic data, such as citizen science observation data, to infer large‐scale properties of species’ distributions. However, the few publications that use opportunistic citizen science data to study animal ecology at a ...
Benjamin Cretois, Emily G. Simmonds, John D. C. Linnell, Bram vanMoorter, Christer M. Rolandsen, Erling J. Solberg, Olav Strand, Vegard Gundersen, Ole Roer, Jan Ketil Rød   +9 more
doaj   +1 more source

Movement Patterns of Juvenile and Immature Eastern Imperial Eagles from Bulgaria

Пернатые хищники и их охрана, 2023
Eastern Imperial Eagle (Aquila heliaca) populations in Central Europe and Balkans are non-migratory while most of those in the eastern part of the range are migratory.
Stoycho A. Stoychev, Dimitar A. Demerdzhiev, Dobromir D. Dobrev, Svetoslav D. Spasov, Volen Arkumarev, Anton Stamenov, Nikolai G. Terziev, Bernd-Ulrich Meyburg, Georgi S. Popgeorgiev   +8 more
doaj   +1 more source

Influence of topography and canopy cover on argos satellite telemetry performance

Wildlife Society Bulletin, 2012
Environmental variables can affect performance of global positioning system (GPS) telemetry; however, similar assessments have not been reported for Argos satellite telemetry. We used a stratified random design and linear mixed‐effects models to evaluate
Joel D. Sauder, Janet L. Rachlow, Michelle M. Wiest   +2 more
doaj   +1 more source

GPS-Denied Navigation Aided by Synthetic Aperture Radar Using the Range-Doppler Algorithm

Navigation, 2022
The need to successfully navigate in the absence of GNSS has grown in recent years. In particular, light aircraft such as UAVs are growing in popularity for a variety of applications vulnerable to GPS denial.
Colton Lindstrom, Randall Christensen, Jacob Gunther, Scott Jenkins   +3 more
doaj   +1 more source