Results 61 to 70 of about 315,523 (239)

Insights from tracking white-bellied pangolins, and implications for telemetry-based research on Phataginus species

Oryx
Pangolins are one of the least studied mammal groups, with major gaps in our knowledge of their population status and ranging behaviour. These shortfalls arise from their elusive habits and the lack of telemetry devices suited to their biology and ...
Charles A. Emogor, Francis Muyorkem Akor, Benedict Ashindobe Atsu, Omini Iferi Bassey, Frederick Mkpe Bassey, John Osang Bisong, Alasdair Davies, Isa Bassey Ebri, Edet Etim Ekpo, Roland Kays, Michael Noonan, Shadrach Dominic Ogar, Andrew Balmford   +12 more
doaj   +1 more source

Comparison of daily activity patterns across seasons using GPS telemetry and camera trap data for a widespread mammal

Ecosphere, 2023
Daily activity patterns of animals can be dynamic across seasons in response to changing environmental conditions. Daily activity, though, has rarely been evaluated in relation to multiple factors (e.g., seasons, demographics, and data collection methods)
David W. Wolfson, Peter E. Schlichting, Raoul K. Boughton, Ryan S. Miller, Kurt C. VerCauteren, Jesse S. Lewis   +5 more
doaj   +1 more source

UAV‐Based Precision Seed Dropping for Automated Reforestation

Journal of Field Robotics, EarlyView.
ABSTRACT Wildfires and deforestation pose significant threats to forest ecosystems, motivating scalable methods for reforestation beyond labor‐intensive cultivation of native forest seedlings in nurseries. To enable large‐scale direct seeding of native species, this paper presents the design, analysis, and field evaluation of a UAV‐based seed‐dropping ...
Qi Rui Lee, Henrik Hesse, Khuanphirom Naruangsri, Worayut Takaew, Stephen Elliott, Dinesh Bhatia   +5 more
wiley   +1 more source

What Wildlife Managers Should Know When Using Radio Telemetry Data [PDF]

, 2018
This fact sheet includes a history of wildlife radio-telemetry; a description of GPS technology, telemetry bias, and sage-grouse; using marked individuals to represent the population, and services that are available to ...
Kohl, Michel, Messmer, Terry, Dahlgren, David   +2 more
core   +1 more source

A Tracking‐By‐Detection Framework to Automatically Count Rare and Elusive Megafauna in Aerial Video Surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring programs of vulnerable megafauna increasingly rely on aerial surveys from drones or planes fitted with cameras. However, automated methods are still lacking to accurately count individuals across entire surveys. Here, we leverage a tracking‐by‐detection framework to not only detect individuals but also link the resulting detections across ...
Laura Mannocci, Auguste Verdier, Louis Bézard, Valentine Fleuré, Gerard Subsol, Marc Chaumont, David Mouillot   +6 more
wiley   +1 more source

Simulation of Navigation Receiver for Ultra-Small Satellite

Приборы и методы измерений, 2019
Currently, ultra-small satellite aresubjectstostringentrequirementsintermsoftheaccuracyof determining the position of the satellite in orbit, while the satellite is the subject to restrictions on mass, size and power consumption.
A. A. Spiridonov, D. V. Ushakov, V. A. Saechnikov   +2 more
doaj   +1 more source

One Size Does Not Fit All—Ignoring Spatial Variation in Occupancy and Detectability Underestimates the Required Number of Camera Trap Sites

Remote Sensing in Ecology and Conservation, EarlyView.
Camera trap occupancy studies often rely on simple rules of thumb that assume constant occupancy and detection across sites. Using simulations, we show that accurate occupancy estimates require 10–40 sites with no spatial variation, 20–120 with simple variation and 40–600 with complex spatial structures.
Pradeep Raj Joshi, Andreas Zedrosser, Rahel Sollmann, Nuria Selva, Simone Santoro   +4 more
wiley   +1 more source

An evaluation of the accuracy and performance of lightweight GPS collars in a suburban environment. [PDF]

PLoS ONE, 2013
The recent development of lightweight GPS collars has enabled medium-to-small sized animals to be tracked via GPS telemetry. Evaluation of the performance and accuracy of GPS collars is largely confined to devices designed for large animals for ...
Amy L Adams, Katharine J M Dickinson, Bruce C Robertson, Yolanda van Heezik   +3 more
doaj   +1 more source

Improving Interoperability of GPS and L-Band Telemetry With Shaped-Pattern Antennas [PDF]

, 2006
Abstract : In a study sponsored by the Air Force Flight Test Center at Edwards AFB, California, Toyon Research Corporation, Goleta, California, demonstrated that shaped pattern antennas could be used to mitigate interference caused by telemetry signals on GPS systems.
Robert Selbrede, Guy Williams, Gary Johnson, Robert Ellington, Stuart McNamee, David Clark, Andrew Richen   +6 more
openaire   +1 more source

Artificial intelligence and venture capital: Revisiting sourcing, selection, and nurturing activities

Strategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Venture capital (VC) is an information‐intensive form of entrepreneurial finance conducted under extreme uncertainty. Investors must originate promising opportunities, select ventures with sparse and strategically disclosed information, and monitor and support firms after investment.
Gary Dushnitsky
wiley   +1 more source