Results 171 to 180 of about 132,738 (254)

Why not both? A case study in measuring cortisol and corticosterone. [PDF]

Integr Org Biol
Westrick SE, Paitz RT, Fischer EK.
europepmc   +1 more source

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Microbiological Studies on Septicemic Bullfrogs (Rana catesbeiana)

American Journal of Veterinary Research, 1974
SUMMARY Microbiological studies were made on Louisiana bullfrogs and tadpoles (Rana catesbeiana) with signs of classic red-leg disease. A group of bacteria commonly found in the aquatic environment was isolated from the blood of the diseased frogs. The same isolates induced red-leg disease when inoculated into healthy frogs and tadpoles.
J C, Glorioso, R L, Amborski, G F, Amborski, D D, Culley   +3 more
openaire   +3 more sources

Territoriality in the Bullfrog, Rana catesbeiana

Copeia, 1968
During the breeding season, adult male bullfrogs, Rana catesbeiana, establish territories from which conspecific males are aggressively excluded. Stereotyped postures, approaches, and physical encounters all function in the defense of such areas.
S. Emlen
openaire   +2 more sources

BULLFROG (RANA CATESBEIANA) INVASION OF A CALIFORNIA RIVER: THE ROLE OF LARVAL COMPETITION

Ecology, 1997
S. Kupferberg
semanticscholar   +3 more sources

Amphibian Cell Culture: Permanent Cell Line from the Bullfrog (Rana catesbeiana)

Science, 1964
K. Wolf, M. Quimby
semanticscholar   +3 more sources

Effects of dehydration on thermoregulatory behavior and thermal tolerance limits of Rana catesbeiana ().

Journal of Thermal Biology, 2020
Predicting the effects of high environmental temperatures and drought on populations requires understanding how these conditions will influence the thermoregulatory behavior and thermal tolerance of organisms.
E. C. Guevara-Molina, F. Gomes, A. Camacho   +2 more
semanticscholar   +1 more source

Hexokinase III from Rana catesbeiana

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1978
1. Hexokinase III was partially purified from the liver of the American bullfrong, Rana catesbeiana, using DEAE-cellulose column chromatography. 2. It was inhibited by glucose concentrations above 5 x 10(-5) M (pH 5.9), 10(-4) M (pH 6.7) or 10(-3) M (pH 7.5). 3. There was virtually no inhibition by excess glucose at pH 8.7. 4.
D, Balinsky, H J, Fromm
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Oxygen uptake in bullfrog tadpoles (Rana catesbeiana)

The Journal of Experimental Zoology, 1998
Weight-specific rates of aquatic oxygen consumption (VO2, microliter O2 g-1 h-1) at 23 degrees C were determined for water-breathing (e.g., forcibly submerged) bullfrog tadpoles as functions of stage of development and O2 tension (PO2). The VO2 at an O2 tension near that of air-saturated water (PO2 approximately 154 mmHg) was independent of stage of ...
W C, Crowder, M, Nie, G R, Ultsch
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Biochemical Metamorphosis of Hemoglobin in Rana catesbeiana

The Journal of Biochemistry, 1966
KINZABURO HAMADA, RYOITI SHUKUYA
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