John F. Kearney & Associates
Social and Environmental Research
Early migrants erupted over Beaver River this week. While the week began slowly, during the two nights beginning on 13 and 14 August, there was a steady of stream of migrants from about an hour after sunset to an hour before sunrise.
There was a good combination of shorebird and warbler nocturnal movements this week. True migration seemed more apparent among the warblers. The two most common warblers were Black-and-white Warbler (an estimated 58 birds) and American Redstart (56 birds). The next two most
Nocturnal migration during this last week in July poses a number of interesting questions about the migration that takes place in mid-summer. By late July, peak migration for some shorebirds species is well underway. Beaver River is not a significant stop-over area
Authors: Alexandra M. Anderson, Sjoerd Duijns, Paul A. Smith, Christian Friis, and Erica Nol Year: 2019 Publication: Frontiers in Ecology and Evolution Publication Link: https://www.frontiersin.org/articles/10.3389/fevo.2019.00251/full Access: Open Keywords: automated telemetry, body condition, carryover effects, flight speed, migration distance, optimal migration, stopover Abstract:
My full-scale monitoring of nocturnal migration for the autumn of 2019 began on the night of 15 July 2019 at my usual monitoring station at Beaver River. This site, while only a couple of hundred meters from the coastal ponds, had just
Early Shorebird Migration Monitoring. For six days this week, I set up an AudioMoth microphone and recorder at the edge of Sandyland Ponds in Beaver River. This microphone does not reach as high into the sky as my regular, highly directional microphone
Author: Erica H. Dunn Date: 2019 Publication: The Auk Publication Link: https://bioone.org/journals/The-Auk/volume-136/issue-2/ukz008/Dynamics-and-population-consequences-of-irruption-in-the-Red-breasted/10.1093/auk/ukz008.short Access: Subscription Keywords: citizen science, irruptive migration, population dynamics, Red-breasted Nuthatch, Sitta canadensis Abstract: Irruptive migration, or movements that are irregular in timing and extent, are common in many boreal
Authors: Birgen Haest, Ommo Hüppop, Martijn van de Pol, Franz Bairlein Year: 2019 Publication: Global Change Biology Publication Link: https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14746 Access: Subscription Keywords: bird migration, environmental plasticity, spatio-temporal analysis, fall, radar, time window analysis, Helgoland, rainfall Abstract: Climate change has caused a
Authors: Raphael Nussbaumer, Lionel Benoit, Gregoire Mariethoz, Felix Liechti, Silke Bauer, Baptiste Schmid Year: 2019 Publication: bioRxiv Publication Link: http://dx.doi.org/10.1101/690065 Access: Open Keywords: Aeroecology, Bird migration, Geostatistical modelling, Interactive visualisation, Kriging, Radar network, Spatio-temporal interpolation map, Weather radar Abstract: 1. Quantifying nocturnal
Author: Lykke Pedersen, Nina Munkholt Jakobsen, Roine Strandberg, Kasper Thorup, Anders P. Tøttrup Year: 2019 Publication: The Science of Nature Publication Link: https://doi.org/10.1007/s00114-019-1637-6 Keywords: Protandry, Song bird migration, Geolocator, Red-backed shrike Abstract: Protandry, the earlier arrival of males at the breeding grounds