Results 41 to 50 of about 6,875 (169)
A haven for hummingbirds [PDF]
, 2009 This Forestry and Natural Resources Fact Sheet by Clemson University Extension Services provides information on attracting hummingbirds to ...
Cummings, Candace +1 more
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Journal of Anatomy, EarlyView.Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley +1 more source
Brazilian Journal of BiologyWe studied hummingbirds and their food plants in an area of caatinga vegetation. We specifically examined their seasonal use of this habitat, migratory and non-migratory status, their foraging strategies and community roles The study was conducted in an ...
FMG Las-Casas +2 more
doaj +1 more source
The Orientation of Visual Space from the Perspective of Hummingbirds
Frontiers in Neuroscience, 2018 Vision is a key component of hummingbird behavior. Hummingbirds hover in front of flowers, guide their bills into them for foraging, and maneuver backwards to undock from them.
Luke P. Tyrrell +5 more
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Nectar as food for birds: The physiological consequences of drinking dilute sugar solutions [PDF]
, 2003 Nectarivory has evolved many times in birds: although best known in hummingbirds, sunbirds and honeyeaters, it also occurs on an opportunistic basis in a varied assortment of birds. We present a phylogenetic analysis of the distribution of nectarivory in
Fleming, P.A., Nicolson, S.W.
core
The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds
Journal of Anatomy, EarlyView.The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley +1 more source
Wild, free-living rufous hummingbirds do not use geometric cues in a spatial task
, 2014 In the laboratory, many species orient themselves using the geometric properties of an enclosure or array and geometric information is often preferred over visual cues.
Pritchard, David J +9 more
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EcologiesPlant–animal interactions have shaped much of Earth’s biodiversity. Their structure probably results from a combination of neutrality and constraints imposed by species’ traits, such as phenotypes, phenologies, and spatial distributions, which may affect
Sergio Díaz-Infante +3 more
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Noûs, EarlyView.ABSTRACT Philosophers often think agency is essentially connected with rationality, intention, or control. However, Minimalists argue that agency is just the power to cause a change; acids and boulders are agents too. Many philosophers treat Minimalism as a wild outlier, assuming its falsity without argument.
William Hornett
wiley +1 more source
PicoCam: High‐resolution 3D imaging of live animals and preserved specimens
Methods in Ecology and EvolutionThe PicoCam system is a multi‐camera photogrammetry rig used for generating high‐resolution 3D models of animals in the field, or preserved specimens in laboratory or museum settings.
Josh Medina +9 more
doaj +1 more source