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pro vyhledávání: '"Ronald D. Gettinger"'
Autor:
Ronald D. Gettinger
Publikováno v:
American Midland Naturalist. 124:181
Publikováno v:
Acta Zoologica. 66:55-60
The brain of an adult, female manatee (Trichechus manatus) was prepared for histological examination of the region of the diencephalon and mesencephalon, where the pineal body typically would be located. Careful examination of hematoxylin-eosin stain
Autor:
Ronald D. Gettinger
Publikováno v:
Physiological Zoology. 48:311-322
Publikováno v:
Physiological Zoology. 57:468-473
Patterns of growth and metabolism by turtle embryos were examined in groups of eggs incubated on artificial substrates differing in water potential. Snapping turtle embryos in eggs incubated under wetter conditions attained larger size and consumed m
Autor:
Ronald D. Gettinger
Publikováno v:
Journal of Mammalogy. 65:76-84
Activity of pocket gophers, Thomomys bottae, which were tagged with radioactive gold wires, was distributed throughout the 24-h day but was significantly more common between 1600-2000 h. Pocket gophers spent 15 h/day in underground nest chambers at d
Autor:
Ronald D. Gettinger
Publikováno v:
Ecology. 65:740-751
Seasonal influences on the patterns of energy and H20 metabolism by free-ranging pocket gophers, Thomomys bottae, were investigated using 3HH 180 procedures. Metabolic rates of adult, nonreproductive gophers did not differ significantly in summer, wi
Autor:
Charles L. Ralph, Ronald D. Gettinger
Publikováno v:
Journal of Experimental Zoology. 234:335-340
The influence of photoperiod on resting oxygen consumption and nonshivering thermogenesis of winter-acclimatized kangaroo rats was determined by exposing freshly captured animals to 10-week controlled photoperiod treatments. Three treatments were emp
Publikováno v:
Oecologia. 29(1)
The weight-specific oxygen consumption ([Formula: see text]) of prairie voles caught in winter is 24% higher at 27.5° C and 29% higher at 7.5° C than that of summer animals, thus affording a higher weight-specific thermogenesis in winter than in su
Autor:
Ronald D. Gettinger
Publikováno v:
Comparative biochemistry and physiology. A, Comparative physiology. 78(4)
1. 1. Adult pocket gophers, fed diets of natural vegetation in the laboratory during summer and winter, remained in positive N balance in all feeding trials. 2. 2. Nitrogen budgets for free-ranging pocket gophers were calculated and revealed that tot
Autor:
Ronald D. Gettinger, David S. Dobkin
Publikováno v:
Journal of Herpetology. 19:271
The thermal properties of terrestrial foam nests of Physalaemus pustulosus (Anura, Leptodactylidae) were investigated in Trinidad, West Indies. Diurnal temperature variation within foam nests resulted from the interaction of several factors: duration