Results 41 to 50 of about 267 (149)
Seasonal Trends in Movement Patterns of Birds and Insects Aloft Simultaneously Recorded by Radar
Remote Sensing, 2021 Airspace is a key but not well-understood habitat for many animal species. Enormous amounts of insects and birds use the airspace to forage, disperse, and migrate.
Xu Shi +4 more
doaj +1 more source
, 2011 Patterns of movement and orientation of fall migrants in southwest Nova Scotia were assessed at a meso scale (6-25 km) across multiple sites. Migration did not proceed across a broad front but, rather, depended on local features of the site or more distant factors that concentrated birds in the region in such a way that counts of targets and measures ...
Matkovich, Carolyn
openaire +2 more sources
Anthropogenic Illumination as Guiding Light for Nocturnal Bird Migrants Identified by Remote Sensing
Remote Sensing, 2022 Migrant birds rely on environmental and celestial cues for navigation and orientation during their journeys. Adverse weather, such as heavy rain or fog, but also thick layers of low-level clouds, affect visibility and can challenge birds’ ability to ...
Nadja Weisshaupt +3 more
doaj +1 more source
Remote Sensing, 2020 The distributions of birds during migratory stopovers are influenced by a hierarchy of factors. For example, in temperate regions, migrants are concentrated near areas of bright artificial light at night (ALAN) and also the coastlines of large water ...
Sergio A. Cabrera-Cruz +3 more
doaj +1 more source
Remote Sensing, 2020 Migratory colonies of up to thousands or millions of Brazilian free-tailed bats (Tadarida brasiliensis) are present in temperate areas of America. The monitoring of these massive colonies is crucial to know their conservation status and to evaluate the ...
Lourdes Boero +7 more
doaj +1 more source
Comparison of bird migration in a radar wind profiler and a dedicated bird radar
Remote Sensing in Ecology and Conservation, Volume 9, Issue 6, Page 820-828, December 2023., 2023 Radar wind profilers used in meteorology have long been known to register birds, but their use in ornithology has remained limited, largely because of biologists’ unfamiliarity with these systems. Here, we compare nocturnal bird migration patterns observed by a radar wind profiler during October 2019 and April 2021 with those from a dedicated bird ...
Nadja Weisshaupt +2 more
wiley +1 more source
Geographic barriers and season shape the nightly timing of avian migration
Global Ecology and Biogeography, Volume 32, Issue 11, Page 1928-1936, November 2023., 2023 Abstract Aim Millions of birds take to the air for nocturnal migrations. Although it is widely recognized that migrants generally depart after sunset, nightly migration timing and their dependence on geographic features are hardly known at a continental scale, yet highly important for the mitigation of human‐wildlife conflicts. Using weather radars, we
Bart Kranstauber +2 more
wiley +1 more source
Insect Monitoring Radar: Maximizing Performance and Utility
Remote Sensing, 2020 Autonomously-operating radars employing the ‘ZLC configuration’ have been providing long-term datasets of insect flight activity to heights of about 1 km since the late 1990s. A unit of this type operating in Australia has recently received a
V. Alistair Drake +3 more
doaj +1 more source
Common noctules exploit low levels of the aerosphere [PDF]
Royal Society Open Science, 2019 Aerial habitats present a challenge to find food across a large potential search volume, particularly for insectivorous bats that rely on echolocation calls with limited detection range and may forage at heights over 1000 m.
M. Teague O'Mara +3 more
doaj +1 more source
Applications of thermal infrared imaging for research in aeroecology [PDF]
Integrative and Comparative Biology, 2008 (Uploaded by Plazi for the Bat Literature Project) No abstract provided.
Nickolay I, Hristov +2 more
openaire +2 more sources