Results 181 to 190 of about 3,445,847 (236)
Some of the next articles are maybe not open access.
Developmental and Comparative Immunology, 2023
American bullfrogs are thought to be carriers of ranaviruses and contribute to their global spread via trade. Bullfrog tadpoles succumb to ranaviral infection's more severe and deadly effects than bullfrog adults.
N. T. Vo, Eric Leis, S. DeWitte-Orr
semanticscholar +1 more source
American bullfrogs are thought to be carriers of ranaviruses and contribute to their global spread via trade. Bullfrog tadpoles succumb to ranaviral infection's more severe and deadly effects than bullfrog adults.
N. T. Vo, Eric Leis, S. DeWitte-Orr
semanticscholar +1 more source
Aquatic conservation
Areas with aquatic ecosystems invaded by the American bullfrog face the challenge of managing its proliferation worldwide. This amphibian is native to eastern North America and is now invasive in several regions.
Z. Salinas +7 more
semanticscholar +1 more source
Areas with aquatic ecosystems invaded by the American bullfrog face the challenge of managing its proliferation worldwide. This amphibian is native to eastern North America and is now invasive in several regions.
Z. Salinas +7 more
semanticscholar +1 more source
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
openaire +3 more sources
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
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Parasitology international
American Bullfrogs, Aquarana catesbeiana, are invasive anuran species distributed worldwide. One of the adverse impacts that this species causes in native communities is as a reservoir host for pathogens and parasites.
K. M. Campião +5 more
semanticscholar +1 more source
American Bullfrogs, Aquarana catesbeiana, are invasive anuran species distributed worldwide. One of the adverse impacts that this species causes in native communities is as a reservoir host for pathogens and parasites.
K. M. Campião +5 more
semanticscholar +1 more source
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
openaire +2 more sources