Results 51 to 60 of about 310 (151)

Migratory connectivity and barrier‐crossing flights of Vermivora warblers are associated with synoptic weather conditions

Journal of Animal Ecology, Volume 95, Issue 2, Page 327-344, February 2026.
Tracking data from ~10 g songbirds illuminate how weather conditions affect the initiation of long‐distance migratory flights across the Gulf of Mexico during autumn and spring. Seasonal differences and weak migratory connectivity near the Gulf suggest adaptive responses to weather, with future climate trends potentially reducing crossing favorability ...
Gunnar R. Kramer, David E. Andersen, David A. Buehler, Petra B. Wood, Sean M. Peterson, Justin A. Lehman, Kyle R. Aldinger, Lesley P. Bulluck, Sergio R. Harding, John Anthony Jones, John P. Loegering, Curtis Smalling, Rachel Vallender, Henry M. Streby   +13 more
wiley   +1 more source

High Resolution Measurements and Characterization of Urban, Suburban and Country Clutter at X-Band and Related Radar Calibration

, 2018
At Tor Vergata University we are working on measurements and phenomenological characterization of urban, suburban and country radar clutter at X-band (3 cm wavelength, range resolution 8 to 10 m, azimuth resolution @ 1 km about 23.5 m) and on the related
Galati G., Galati, G, Pavan G., Pavan, G
core   +1 more source

Autonomous Radar Ornithology: Benchmarking Automated Bird Detection and Tracking

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This study evaluates the performance of the GlobAl Nearest Neighbour targEt Tracker (GANNET), a low‐cost automated algorithm for detecting and tracking bird‐like targets in X‐band marine radar imagery, using over 55,000 detections and 34,000 trajectories from the Fall of Warness tidal test site.
Amy L. Jones, David L. McCann, Lucy J. Mitchell, Jason McIlvenny, Benjamin J. Williamson   +4 more
wiley   +1 more source

Aggregating three sources of long‐term trends of swallows and martins to identify priority conservation areas in the Great Lakes region

Journal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our data integration methodology allows managers to identify regions that accumulate evidence of concerning trends across multiple wildlife monitoring schemes. These regions can thus be prioritized in conservation and management efforts. This approach can be generalized to other sources of long‐term monitoring data of different species, at different ...
Maria C. T. D. Belotti, Brian D. Gerber, Wenlong Zhao, Yuting Deng, Victoria F. Simons, Gustavo Perez, Jeffrey F. Kelly, Subhransu Maji, Daniel Sheldon, Kyle G. Horton   +9 more
wiley   +1 more source

Tracking habitat use of migratory birds in a human‐dominated stopover site using deep learning and acoustic indices

Ecosphere, Volume 16, Issue 12, December 2025.
Abstract Bird migration is a fascinating behavioral phenomenon on earth, with annual movements along migratory routes forming complex migration networks. Stopovers, which serve as fuel stations for migratory birds, are critical to the success of long‐distance migrations.
Yuxuan Duan, Shizheng Wang, Ranxing Cao, Jiawei Feng, Jianping Ge, Tianming Wang   +5 more
wiley   +1 more source

A Simulation Model of the Detection Patterns of Birds Using Marine Radars

, 2017
Many bird radar studies provide estimates of the number of birds flying past a given area, but very few of these actually estimate detectability. One of the challenges in radar ornithology is estimating the probability of detection of flying targets with
Souliere, Christopher Michael
core   +1 more source

Monitoring Pacific walrus coastal haulouts by satellite to estimate herd abundance and distribution

Wildlife Society Bulletin, Volume 49, Issue 4, December 2025.
We monitored Pacific walrus haulouts with drone and satellite imagery to derive new methods for estimating minimum population size. The largest herd observed during an 8‐year study period was on the coast of northeastern Russia at Cape Serdtse‐Kamen in autumn 2022 where the aggregation spanned over an area of 184,094 m2 with a mean density (and 90 ...
Anthony S. Fischbach, Rebecca L. Taylor, David C. Douglas   +2 more
wiley   +1 more source

New software methods in radar ornithology using WSR-88D weather data and potential application to monitoring effects of climate change on bird migration

, 2010
Radar ornithology has provided tools for studying the movement of birds,especially related to migration. Researchers have presented qualitative evidence suggestingthat birds, or at least migration events, can be identified using large broad scale radars ...
Mead, Reginald, Sojda, Richard S., Paxton, John   +2 more
core   +1 more source

Orientation of shorebirds in relation to wind: both drift and compensation in the same region

, 2013
Migratory movements in air or water are strongly affected by wind and ocean currents and an animal which does not compensate for lateral flow will be drifted from its intended direction of movement. We investigated whether arctic shorebirds during autumn
Alerstam, Thomas, Green, Martin, Johanna, Grönroos,, Green, Martin,, Alerstam, Thomas,, Grönroos, Johanna   +5 more
core   +1 more source

Automated acoustic monitoring captures timing and intensity of bird migration

, 2022
International audienceMonitoring small, mobile organisms is crucial for science and conservation, but is technically challenging. Migratory birds are prime examples, often undertaking nocturnal movements of thousands of kilometres over inaccessible and ...
Dokter, Adriaan, Salamon, Justin, Bello, Juan Pablo, Kelling, Steve, Farnsworth, Andrew, van Doren, Benjamin, M, Lostanlen, Vincent, Cramer, Aurora   +7 more
core   +1 more source