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Temperature effects on auditory nerve fiber response in the American bullfrog
Hearing Research, 1990Single fiber recordings were made from auditory nerve fibers of the American bullfrog (Rana catesbeiana). As temperature was raised: (1) Best frequencies of fibers from the amphibian papilla (N = 15) increased. Below 600 Hz best frequency changes up to 0.06 oct/degrees C were found; above 600 Hz changes were less than 0.03 oct/degrees C. In the basilar
VANDIJK, P, LEWIS, ER, WIT, HP
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Impact of Introduction of American Bullfrogs on Species Diversity
2023This module explores the introduction of the American bullfrog on their ecosystem. Using species diversity calculations and data collection techniques, students explore how the bullfrog affected the species in its community. Students are introduced to calculations like species richness, species evenness, and species diversity indices.
Zimbler-DeLorenzo, Heather +3 more
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Archives of Environmental Contamination and Toxicology, 2021
Nonnutritive sweeteners used in food and beverage products are widespread, persistent aquatic pollutants. Despite this, their impact on aquatic organisms, particularly vertebrates, is not well-studied. Recent findings in rodents suggest sucralose, a chlorinated disaccharide, alters thyroid hormone (TH) metabolism.
Ethan A. Abbott, Caren C. Helbing
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Nonnutritive sweeteners used in food and beverage products are widespread, persistent aquatic pollutants. Despite this, their impact on aquatic organisms, particularly vertebrates, is not well-studied. Recent findings in rodents suggest sucralose, a chlorinated disaccharide, alters thyroid hormone (TH) metabolism.
Ethan A. Abbott, Caren C. Helbing
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American bullfrog Lithobates catesbeianus (Shaw, 1802) invasion in Argentina
Biological Invasions, 2009The American bullfrog (Lithobates catesbeianus) has been introduced throughout the world over the past two centuries. This taxa is a potentially devastating invader because of its large size, prolific reproductive output, and broad ecological niche. Consequently, the extent of this ongoing biological invasion is an increasing conservation concern.
Mauricio Sebastián Akmentins +1 more
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The labyrinth of the American bullfrog.
Advances in oto-rhino-laryngology, 1979The labyrinth of the American bullfrog (Rana catesbiana) has been studied by aid of light and electron microscopy. Cell counts and sensory area mapping has been made and it has been shown that scanning electron microscopy is the most appropriate technique at present for cell counts.
H, Engström, B, Engström, K, Watanuki
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Steroid biosynthesis by the American bullfrog (Rana catesbeiana) interrenals
General and Comparative Endocrinology, 1971Abstract Incubations of various tissue preparations (surviving sections, homogenates and subcellular fractions) of bullfrog interrenals with progesterone-4- 14 C yielded the following identifiable metabolites 4 : 18-hydroxycorticosterone, aldosterone, 11-dehydrocorticosterone, corticosterone, 11β-hydroxyprogesterone, and 11-deoxycorticosterone. The
A.Z. Mehdi, A. Carballeira
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Vitamin C supplementation has no effect on American bullfrog's immune response
Journal of Animal Physiology and Animal Nutrition, 2014SummaryAmerican bullfrog (Lithobates catesbeianus) is the only species raised in Brazilian commercial frog farms, and the intensive culture of these animals has gained great popularity in Brazil over the past several years. Stress is one of the major obstacles in frog culture.
R, Knoop +8 more
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Chelonian Conservation and Biology
. Knowledge about the distributions of species and the variables influencing their occurrence is important for their management and conservation, but factors affecting occurrence can vary across the range of a species.
B. Halstead +3 more
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. Knowledge about the distributions of species and the variables influencing their occurrence is important for their management and conservation, but factors affecting occurrence can vary across the range of a species.
B. Halstead +3 more
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Albinism in American bullfrog (Rana catesbeiana) tadpoles from Virginia
2005(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Mitchell, Joseph C, Mcgranaghan, Liam
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Wiener kernel analysis of inner ear function in the American bullfrog
The Journal of the Acoustical Society of America, 1994The response of 17 primary auditory nerve fibers in the American bullfrog (Rana catesbeiana) to acoustic noise stimulation of the tympanic membrane was recorded. For each fiber, the first- and second-order Wiener kernels, k1(τ1) and k2(τ1,τ2), were computed by cross correlation of the stimulus and the response.
Van Dijk, Pim +3 more
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