Results 41 to 50 of about 357,418 (307)
Limitations on Animal Flight Performance [PDF]
ABSTRACT Flight performance seems to change systematically with body size: small animals can hover and fly over a wide range of speeds, but large birds taxi for takeoff and then fly over a narrow speed range. The traditional explanation for this is that the mass-specific power required for flight varies with speed according to a U-shaped
openaire +1 more source
White-tailed deer response to vehicle approach: evidence of unclear and present danger. [PDF]
The fundamental causes of animal-vehicle collisions are unclear, particularly at the level of animal detection of approaching vehicles and decision-making. Deer-vehicle collisions (DVCs) are especially costly in terms of animal mortality, property damage,
Bradley F Blackwell +2 more
doaj +1 more source
Constructing a Stochastic Model of Bumblebee Flights from Experimental Data [PDF]
PMCID: PMC3592844This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
A James +39 more
core +3 more sources
Flight morphological variations and its consequences on animal performance are common in winged insects. In the butterfly Heliconius charithonia, sex-related differences in the wing morphological design have been described resulting in differences in ...
Velia I Ramos-Pérez +4 more
doaj +1 more source
Animal Locomotion: Near-Ground Low-Cost Flights [PDF]
Flying animals expend considerable energy. A new study reveals that bats reduce their flight power requirements by nearly a third when flying in 'ground effect' close to the surface.
openaire +3 more sources
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Rethinking the Age of Zoo Reform
Lisa Uddin, Zoo Renewal: White Flight and the Animal Ghetto. Minneapolis: University of Minnesota Press, 2014. xi + 277 pp. with 8 color plates.
Takashi Ito
doaj +1 more source
Adaptive Bird-like Genome Miniaturization During the Evolution of Scallop Swimming Lifestyle
Genome miniaturization drives key evolutionary innovations of adaptive traits in vertebrates, such as the flight evolution of birds. However, whether similar evolutionary processes exist in invertebrates remains poorly understood. Derived from the second-
Yuli Li +10 more
doaj +1 more source
Of hummingbirds and helicopters: Hovering costs, competitive ability, and foraging strategies [PDF]
Wing morphology and flight kinematics profoundly influence foraging costs and the overall behavioral ecology of hummingbirds. By analogy with helicopters, previous energetic studies have applied the momentum theory of aircraft propellers to estimate ...
Altshuler, Douglas L. +2 more
core +1 more source
Mechanisms and Implications of Animal Flight Maneuverability [PDF]
Accelerations and directional changes of flying animals derive from interactions between aerodynamic force production and the inertial resistance of the body to translation and rotation. Anatomical and allometric features of body design thus mediate the rapidity of aerial maneuvers.
openaire +2 more sources

