Results 61 to 70 of about 175 (133)
Comparing imaging, acoustics, and radar to monitor Leach’s storm-petrel colonies [PDF]
PeerJ, 2019 Seabirds are integral components of marine ecosystems and, with many populations globally threatened, there is a critical need for effective and scalable seabird monitoring strategies.
Rachael A. Orben +10 more
doaj +2 more sources
Development of a networked photonic‐enabled staring radar testbed for urban surveillance
IET Radar, Sonar &Navigation, Volume 18, Issue 1, Page 41-55, January 2024.Integration of a quantum photonics oscillator into the microwave reference source of an L‐band fully digital staring radar. Networked radar testbed to demonstrate the utility of ultra‐low phase noise highly stable oscillators for detection of low observable targets in complex urban environment.
Mohammed Jahangir +11 more
wiley +1 more source
The grand challenges of migration ecology that radar aeroecology can help answer
Ecography, 2018 Many migratory species have experienced substantial declines that resulted from rapid and massive expansions of human structures and activities, habitat alterations and climate change. Migrants are also recognized as an integral component of biodiversity and provide a multitude of services and disservices that are relevant to human agriculture, economy
Bauer, Silke +10 more
openaire +2 more sources
Movement Ecology, 2023 Background Millions of birds travel every year between Europe and Africa detouring ecological barriers and funnelling through migratory corridors where they face variable weather conditions.
Paolo Becciu +4 more
doaj +1 more source
High-Resolution Spatial Distribution of Bird Movements Estimated from a Weather Radar Network
Remote Sensing, 2020 Weather radars provide detailed information on aerial movements of organisms. However, interpreting fine-scale radar imagery remains challenging because of changes in aerial sampling altitude with distance from the radar.
Bart Kranstauber +6 more
doaj +1 more source
Physiological Aeroecology: Anatomical and Physiological Adaptations for Flight
, 2017 Flight has evolved independently in birds, bats, and insects and was present in the Mesozoic pterosaurians that have disappeared. Of the roughly one million living animal species, more than three-quarters are flying insects. Flying is an extremely successful way of locomotion. At first glance, this seems surprising because leaving the ground and moving
Jenni-Eiermann, Susanne +1 more
openaire +2 more sources
Radar aeroecology – a missing piece of the puzzle for studying the migration ecology of animals [PDF]
Ecography, 2019 In a recent Ecography article, Bauer et al. (2019) identified the most pressing questions for advancing our understanding of how anthropogenic changes in the environment affect aerial migrants at the macroscale and how these changes consequently influence humans.
openaire +1 more source
Radar quantifies migrant concentration and Dawn reorientation at a Great Lakes shoreline
Movement Ecology, 2018 Background Millions of flying migrants encounter the Great Lakes and other large water bodies on long-distance flights each spring and fall, but quantitative data regarding how they traverse these obstacles are limited.
Kevin W. Heist +9 more
doaj +1 more source
Supplementary figures from Aeroecology of a solar eclipse
, 2018 Three supplementary figures with ...
Nilsson, Cecilia +4 more
openaire +1 more source
A Weather Radar Ground Clutter Suppression Method Using Adaptive Coherent Pulse Integration
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingGround clutter poses a significant challenge to the accuracy of weather radar products, especially for aeroecology monitoring. Operational weather radar commonly employs a fixed coherent pulse integration (CPI) for clutter suppression.
Rui Wang +6 more
doaj +1 more source