Search Results - "Tucker, V A"

The deep fovea, sideways vision and spiral flight paths in raptors by Tucker, V A

“…Raptors - falcons, hawks and eagles in this study - have two regions of the retina in each eye that are specialized for acute vision: the deep fovea and the…”
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Gliding flight: drag and torque of a hawk and a falcon with straight and turned heads, and a lower value for the parasite drag coefficient by Tucker, V A

“…Raptors - falcons, hawks and eagles in this study - such as peregrine falcons (Falco peregrinus) that attack distant prey from high-speed dives face a paradox…”
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Curved flight paths and sideways vision in peregrine falcons (Falco peregrinus) by Tucker, V A, Tucker, A E, Akers, K, Enderson, J H

“…When diving at prey straight ahead from great distances at high speeds, a peregrine has a conflict between vision and aerodynamics: it must turn its head…”
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Structure-toxicity relationships for the effects of N- and N, N'-alkyl thioureas to Tetrahymena pyriformis by SCHULTZ, T. W, TUCKER, V. A

“…Ecotoxicity testing with the freshwater ciliate Tetrahymena pyriformis allows for the examination of a sub-acute endpoint, population growth impairment, with a…”
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The Effect of Molting on the Gliding Performance of a Harris' Hawk (Parabuteo unicinctus) by Tucker, Vance A.

“…The maximum lift-to-drag ratio of a Harris' Hawk (Parabuteo unicinctus) gliding in a wind tunnel at 10.5 m/s dropped from 10.5 before the onset of molting to a…”
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Body drag, feather drag and interference drag of the mounting strut in a peregrine falcon, Falco peregrinus by TUCKER, V. A

“…ABSTRACT The mean, minimum drag coefficients (CD,B) of a frozen, wingless peregrine falcon body and a smooth-surfaced model of the body were 0.24 and 0.14,…”
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Aerodynamics of gliding flight in a Harris' hawk, Parabuteo unicinctus by TUCKER, V. A, HEINE, C

“…ABSTRACT A Harris’ hawk with a mass of 0.702 kg and a maximum wing span of 1.02 m glided freely in a wind tunnel at air speeds between 6.1 and 16.2 ms−1. The…”
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Measuring aerodynamic interference drag between a bird body and the mounting strut of a drag balance by TUCKER, V. A

“…ABSTRACT The drag of a bird body mounted on the strut of a drag balance in a wind tunnel is more than the sum of the drags of the isolated strut and the…”
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The energetic cost of moving about by Tucker, V A

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Method for oxygen content and dissociation curves on microliter blood samples by Tucker, V A

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Gliding birds: reduction of induced drag by wing tip slots between the primary feathers by TUCKER, V. A

“…ABSTRACT The feathers at the wing tips of most birds that soar over land separate both horizontally and vertically in flight to form slotted tips. The…”
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Population growth impairment of aliphatic alcohols to Tetrahymena by Schultz, T. Wayne, Seward-Nagel, Julie, Foster, Karen A., Tucker, Vera A.

“…The toxicity of a series of 120 aliphatic alcohols was evaluated using the Tetrahymena pyriformis population growth impairment assay. For tertiary propargylic…”
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Metabolism during flight in the laughing gull, Larus atricilla by Tucker, V A

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Respiratory physiology of house sparrows in relation to high-altitude flight by Tucker, V A

“…ABSTRACT Some birds perform the strenuous activity of flapping flight at altitudes in excess of 6100 m. (20,000 ft.), an altitude at which resting,…”
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Pitching equilibrium, wing span and tail span in a gliding Harris' hawk, Parabuteo unicinctus by TUCKER, V. A

“…ABSTRACT The centre of area of the wings of a Harris’ hawk gliding freely in a wind tunnel moved forward 0.09 wing chord lengths when the hawk increased its…”
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Oxygen transport by the circulatory system of the green iguana (Iguana iguana) at different body temperatures by Tucker, V A

“…ABSTRACT Oxygen consumption, stroke volume, heart rate and the difference in oxygen contents of arterial and venous blood (AV difference) were measured in the…”
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Oxygen consumption, thermal conductance, and torpor in the California pocket mouse Perognathus californicus by Tucker, V A

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Gliding birds: the effect of variable wing span by TUCKER, V. A

“…ABSTRACT The equilibrium gliding performance of a bird is described by the relationship between sinking speed (V8) and air speed (V). When V3 is plotted…”
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The relation between the torpor cycle and heat exchange in the California pocket mouse Perognathus californicus by Tucker, V A

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Gliding birds: descending flight of the white-backed vulture, Gyps africanus by TUCKER, V. A

“…ABSTRACT The air speeds and sinking speeds of birds gliding at equilibrium fall in a performance area when these quantities are plotted against one another…”
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