.... Aves Nectarivory Drinking Suction feeding Fluid collection Walt Halperin Endowed Professorship Washington Research Foundation http://dx.doi.org/10.13039/100001906 As a clade, birds consume a variety of liquids for hydration or as a food source. Efficient consumption...

..., predictable way during breathing, which is important for modelling the evolution of avian ventilation and respiratory physiology. Aves Breathing X-ray reconstruction of moving morphology Sternum Vertebral rib The avian thorax is also derived relative to other amniotes ( Baumel, 1993...

... system Stroke volume Aves Ornstein–Uhlenbeck models Aerobic power (i.e. the capacity to endure intense and sustained aerobic activity) is supported by a cascade of processes nested in several organizational levels, which are ultimately constrained by circulatory adjustments ( Bernheim et al...

... of birds from 17 families in 10 orders from across Aves. Integumentary structural colours of birds include ultraviolet, dark blue, light blue, green and yellow hues. The discrete peaks in reflectance spectra do not conform to the inverse fourth power relationship predicted by Rayleigh scattering...

... as diverse as biomedical, ecological and evolutionary physiology. * Author for correspondence (e-mail: [email protected] ) 21 11 2000 01 02 2001 © 2001 by Company of Biologists 2001 intestinal absorption passive transport paracellular transport Aves Passer...

... ; Papi & Pardi, 1978). All these techniques require that the bird and the monitoring equipment always be within optical or electromagnetic ‘visibility’. 05 08 1987 © 1988 by Company of Biologists 1988 flight path recording heading sensor Aves homing pigeon...

... in the area from the nasal cavity to the orbit. Light microscopy and histochemical tests confirm the localization of inorganic iron in this region. 04 04 1986 © 1986 by Company of Biologists 1986 magnetic orientation migration magnetite bobolink Aves Many species exhibit...