Results 91 to 100 of about 11,322 (292)

Accounting for animal movement during aerial imaging surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Animals are not stationary during aerial surveys; if their movements are related to the movement of the aerial platform, then bias can be introduced into subsequent population count estimates. We sought to establish a framework for assessing the impacts of animal movement on count error and platform bias by comparing aggregated counts and relative ...
Rowan L. Converse, Christopher D. Lippitt, Steven E. Sesnie, David R. Stewart, Matthew J. Butler, Grant M. Harris   +5 more
wiley   +1 more source

Quantifying Shoebill (Balaeniceps rex) habitat suitability in the Bangweulu Wetlands, Zambia [PDF]

, 2013
A quantitative analysis of suitable habitat for the Shoebill (Balaeniceps rex), a large waterbird confined to African swamps, was conducted by using a combination of aerial photographs and a previously determined habitat suitability model from the ...
Musker, Seth
core  

RoxFrancis/Automated-Waterbird-Counts: Semi-automated drone counts on waterbird colonies - First release [PDF]

, 2020
<p>First release of the semi-automated drone counting methods</p ...
RoxFrancis
core   +1 more source

Distribution and Numbers of Three Globally Threatened Waterbird Species Wintering in Morocco: The Common Pochard, Marbled Teal, and White-Headed Duck

, 2021
Morocco plays a key role in the life of many migratory birds and their survival, thanks to the diversity and richness of its ecosystems. The International Waterbird Census (IWC) has been regularly implemented in Morocco since 1983. Thanks to this program,
Asmaâ Ouassou, M. Dakki, M. E. El Agbani, A. Qninba, Rhimou El Hamoumi   +4 more
semanticscholar   +1 more source

Fusion or Confusion? Assessing the Impact of Visible‐Thermal Image Fusion for Automated Wildlife Detection

Remote Sensing in Ecology and Conservation, EarlyView.
This study evaluates the performances of synchronous aerial visible (VIS) and thermal infrared (TIR) imagery for detecting great blue heron (Ardea herodias) nests and individuals using a YOLO11n model. VIS and TIR images were automatically aligned using deep learning, and both early and late fusion approaches were tested.
Camille Dionne‐Pierre, Samuel Foucher, Jérôme Théau, Jérôme Lemaître, Patrick Charbonneau, Maxime Brousseau, Mathieu Varin   +6 more
wiley   +1 more source

Using a live‐streaming webcam to assess the behavioural responses of waterbirds to changes in the density of swans Cygnus spp.

Wildlife Biology, EarlyView.
Wildlife research has benefitted from the development of new methods that allow data to be collected remotely, with less disturbance to focal animals. The proliferation of livestreaming webcams, for example, those used by nature reserves for public engagement purposes, have offered new possibilities for the study of wildlife behaviour.
Kevin A. Wood, Grace Clarke, Paul E. Rose   +2 more
wiley   +1 more source

Multiscale effects of habitat and surrounding matrices on waterbird diversity in the Yangtze River Floodplain

Landscape Ecology, 2020
Context With the expansion in urbanization, understanding how biodiversity responds to the altered landscape becomes a major concern. Most studies focus on habitat effects on biodiversity, yet much less attention has been paid to surrounding landscape ...
Bo Gao, P. Gong, Wenyuan Zhang, Jun Yang, Y. Si   +4 more
semanticscholar   +1 more source

Using programmable infusion pump in avian species – a validation methodology in geese

Wildlife Biology, EarlyView.
Wildlife face anthropogenic and natural stressors that affect their physiology and behaviour. The activity of the hypothalamic–pituitary–adrenal axis and glucocorticoid (GC) production is intrinsically linked with energy regulation and environmental stressors.
Myriam Trottier‐Paquet, Maude Gauthier‐Bouchard, Akiko Kato, Charline Parenteau, Frédéric Angelier, Pierre Legagneux   +5 more
wiley   +1 more source

Waterbird nest survival derived from drone surveys

Journal of Field Ornithology
Drone surveys provide accurate estimates of nest abundance and survival for ground-nesting waterbird species, but drones have not been used to estimate survival for waterbirds nesting in a canopied swamp habitat. We compared nest survival of Snowy Egret (
Rostam E Mirzadi, Dale E. Gawlik
doaj   +1 more source

Drone Surveys Do Not Increase Colony-wide Flight Behaviour at Waterbird Nesting Sites, But Sensitivity Varies Among Species

Scientific Reports, 2020
The popularity of using unmanned aerial vehicles (UAVs) to survey colonial waterbirds has increased in the past decade, but disturbance associated with this bourgeoning technology requires further study.
Jared R. Barr, Jared R. Barr, M. Green, Stephen J. Demaso, T. Hardy   +4 more
semanticscholar   +1 more source