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Donald R. Powers
Donald R. Powers
Professor of Biology, George Fox University
Bestätigte E-Mail-Adresse bei georgefox.edu - Startseite
Titel
Zitiert von
Zitiert von
Jahr
Aerodynamics of the hovering hummingbird
DR Warrick, BW Tobalske, DR Powers
Nature 435 (7045), 1094-1097, 2005
4132005
Three-dimensional kinematics of hummingbird flight
BW Tobalske, DR Warrick, CJ Clark, DR Powers, TL Hedrick, GA Hyder, ...
Journal of Experimental Biology 210 (13), 2368-2382, 2007
2932007
Lift production in the hovering hummingbird
DR Warrick, BW Tobalske, DR Powers
Proceedings of the Royal Society B: Biological Sciences 276 (1674), 3747-3752, 2009
1232009
Take-off mechanics in hummingbirds (Trochilidae)
BW Tobalske, DL Altshuler, DR Powers
Journal of Experimental Biology 207 (8), 1345-1352, 2004
992004
The effect of food availability on time and energy expenditures of territorial and non-territorial hummingbirds
DR Powers, T McKee
The Condor 96 (4), 1064-1075, 1994
941994
Field metabolic rate and food consumption by free-living Anna's hummingbirds (Calypte anna)
DR Powers, KA Nagy
Physiological Zoology 61 (6), 500-506, 1988
811988
Field metabolic rate and food consumption of two sympatric hummingbird species in southeastern Arizona
DR Powers, TM Conley
The Condor 96 (1), 141-150, 1994
691994
Diurnal variation in mass, metabolic rate, and respiratory quotient in Anna's and Costa's hummingbirds
DR Powers
Physiological Zoology 64 (3), 850-870, 1991
641991
Blue-throated hummingbird song: a pinnacle of nonoscine vocalizations
M Sigler Ficken, KM Rusch, SJ Taylor, DR Powers
The Auk 117 (1), 120-128, 2000
612000
Effect of temperature and humidity on evaporative water loss in Anna's hummingbird (Calypte anna)
DR Powers
Journal of Comparative Physiology B 162 (1), 74-84, 1992
601992
Effects of variation in food quality on the breeding territoriality of the male Anna's hummingbird
DR Powers
The Condor 89 (1), 103-111, 1987
601987
Citizen‐science data provides new insight into annual and seasonal variation in migration patterns
SR Supp, FA La Sorte, TA Cormier, MCW Lim, DR Powers, ...
Ecosphere 6 (1), 1-19, 2015
552015
Citizen‐science data provides new insight into annual and seasonal variation in migration patterns
SR Supp, FA La Sorte, TA Cormier, MCW Lim, DR Powers, ...
Ecosphere 6 (1), 1-19, 2015
552015
Effects of flight speed upon muscle activity in hummingbirds
BW Tobalske, AA Biewener, DR Warrick, TL Hedrick, DR Powers
Journal of Experimental Biology 213 (14), 2515-2523, 2010
522010
Influence of normal daytime fat deposition on laboratory measurements of torpor use in territorial versus nonterritorial hummingbirds
DR Powers, AR Brown, JA Van Hook
Physiological and Biochemical Zoology 76 (3), 389-397, 2003
452003
Are hummingbirds facultatively ammonotelic? Nitrogen excretion and requirements as a function of body size
TJ McWhorter, DR Powers, C Martínez del Rio
Physiological and Biochemical Zoology 76 (5), 731-743, 2003
342003
Broad-billed Hummingbird(Cynanthus latirostris)
DR Powers, SM Wethington
The birds of North America, 20, 1999
221999
Magnificent hummingbird: Eugenes fulgens
DR Powers
American Ornithologists' Union, 1996
221996
Reproductive behavior and communication in blue-throated hummingbirds
MS Ficken, KM Rusch, SJ Taylor, DR Powers
The Wilson Bulletin 114 (2), 197-209, 2002
212002
Arthropod foraging by a southeastern Arizona hummingbird guild
DR Powers, JA Van Hook, EA Sandlin, TJ McWhorter
The Wilson Journal of Ornithology 122 (3), 494-502, 2010
132010
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