Results 31 to 40 of about 357,418 (307)

Wolf Responses to Experimental Human Approaches Using High-Resolution Positioning Data

open access: yesFrontiers in Ecology and Evolution, 2022
Humans pose a major mortality risk to wolves. Hence, similar to how prey respond to predators, wolves can be expected to show anti-predator responses to humans. When exposed to a threat, animals may show a fight, flight, freeze or hide response. The type
Erik Versluijs   +6 more
doaj   +1 more source

Realistic modeling of bird flight animations [PDF]

open access: yesACM Transactions on Graphics, 2003
In this paper we describe a physics-based method for synthesis of bird flight animations. Our method computes a realistic set of wingbeats that enables a bird to follow the specified trajectory. We model the bird as an articulated skeleton with elastically deformable feathers.
Jia-chi Wu, Zoran Popović
openaire   +1 more source

Radar Aeroecology

open access: yesRemote Sensing, 2020
Aeroecology is an emerging discipline founded by Tom Kunz and colleagues in the early 2000s to address the challenges of studying animal flight in the lower atmosphere [...]
Jeffrey F. Kelly, Phillip M. Stepanian
doaj   +1 more source

Perceptual modalities guiding bat flight in a native habitat [PDF]

open access: yes, 2018
Flying animals accomplish high-speed navigation through fields of obstacles using a suite of sensory modalities that blend spatial memory with input from vision, tactile sensing, and, in the case of most bats and some other animals, echolocation ...
Baillieul, John   +7 more
core   +1 more source

Bottlenose Dolphins and Antillean Manatees Respond to Small Multi-Rotor Unmanned Aerial Systems

open access: yesFrontiers in Marine Science, 2018
Unmanned aerial systems (UASs) are powerful tools for research and monitoring of wildlife. However, the effects of these systems on most marine mammals are largely unknown, preventing the establishment of guidelines that will minimize animal disturbance.
Eric A. Ramos   +6 more
doaj   +1 more source

The role of visual and mechanosensory cues in structuring forward flight in Drosophila melanogaster [PDF]

open access: yes, 2007
It has long been known that many flying insects use visual cues to orient with respect to the wind and to control their groundspeed in the face of varying wind conditions.
Budick, Seth A.   +2 more
core   +1 more source

Migration of the Western Marsh Harrier to the African wintering quarters along the Central Mediterranean flyway: a 5-year study

open access: yesAvian Research, 2017
Background The Western Marsh Harrier (Circus aeruginosus) is a partial migrant with the populations from Eastern and Northern Europe migrating south to sub-Saharan Africa.
Nicolantonio Agostini   +4 more
doaj   +1 more source

The influence of timeshift on ciradian rhythm of sensitivity to X-irradiation in mice [PDF]

open access: yes, 1984
For two groups of male C3H mice an eastbound transmeridional flight was simulated by inducing a time shift of the L:D schedule of 8 hr. The assumed flight brought about a maxima) reduction of the daily light and dark span, respectively.
Arbogast, B., Gerbes, Alexander L.
core   +1 more source

North American Animated Flight Atlas

open access: yesJournal of Maps, 2007
Abstract There are many different landscapes. The landscape mapped here forms in the sky as thousands of aircraft are carefully choreographed by ground control to ferry passengers from one place to another. It is this landscape of constantly moving air traffic that is the subject of a new atlas.
M.P. Peterson, J. Wendel
openaire   +1 more source

Protective Effect of Methyl Sulfonyl Methane on the Progression of Age-Induced Bone Loss by Regulating Oxidative Stress-Mediated Bone Resorption

open access: yesAntioxidants
Aging is associated with detrimental bone loss, often leading to fragility fractures, which may be driven by oxidative stress. In this study, the outcomes of comparing the differences among young, adult and aged C57BL/6J mice found that the trabecular ...
Duo Zhang   +5 more
doaj   +1 more source

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