Results 61 to 70 of about 15,371 (258)
A computer vision approach to classification of birds in flight from video sequences [PDF]
, 2015 Bird populations are an important bio-indicator; so collecting reliable data is useful for ecologists helping conserve and manage fragile ecosystems. However, existing manual monitoring methods are labour-intensive, time-consuming, and error-prone.
Appiah, K +4 more
core +1 more source
Movement of Walleye in Lewis and Clark Lake Inferred From Acoustic Telemetry
River Research and Applications, EarlyView.ABSTRACT Walleye Sander vitreus is an economically important sport fish species with highly variable movement patterns, with individuals exhibiting site residency and others moving up to 350 km. Movement patterns of walleye are affected by both river regulation and shifting environmental conditions.
W. J. Radigan +3 more
wiley +1 more source
The voice from the hereafter: vocalisations in three species of Atelopus from the Venezuelan Andes, likely to be extinct [PDF]
Herpetozoa, 2019 Atelopus is a species-rich group of Neotropical bufonids. Present knowledge on bioacoustics in this genus is relatively poor, as vocalisations have been described in only about one fifth of the ca. 100 species known.
Stefan Lötters +4 more
doaj +3 more sources
Sympatric song variant in mountain chickadees Poecile gambeli does not reduce aggression from black-capped chickadees Poecile atricapillus [PDF]
, 2016 When habitats overlap and species compete for resources, negative interactions frequently occur. Character displacement in the form of behavioural, social or morphological divergences between closely related species can act to reduce negative ...
LaZerte, Stefanie E +3 more
core +3 more sources
Remote Sensing in Ecology and Conservation, EarlyView.Here, we conducted the first large‐scale joint camera trap and bioacoustics survey for large African carnivores in Nyerere National Park, Tanzania. By combining the different data types that each technology produced, this led to the discovery that every leopard has a unique, identifiable roar which enables leopards to be the focus of other, more ...
Jonathan Growcott +6 more
wiley +1 more source
Rhythm and synchrony in animal movement and communication
, 2018 Animal communication and motoric behavior develop over time. Often, this temporal dimension has communicative relevance and is organized according to structural patterns.
Ravignani, A.
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Animal vocalizations encode rich biological information, making bioacoustic analysis a valuable non‐invasive tool for assessing animal welfare and population dynamics. However, traditional methods relying on manual feature selection are labour‐intensive, subjective and lack scalability for the large datasets generated by passive acoustic monitoring ...
Alastair Pickering +3 more
wiley +1 more source
Wildlife Biology, EarlyView.Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner +2 more
wiley +1 more source
Frontiers in Ecology and Evolution, 2022 Acoustic communication serves a crucial role in the social interactions of vocal animals. Duetting—the coordinated singing among pairs of animals—has evolved independently multiple times across diverse taxonomic groups including insects, frogs, birds ...
Isabel Comella +4 more
doaj +1 more source
Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]
, 2011 Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin +2 more
core +1 more source