Results 21 to 30 of about 3,694 (192)

Buccal rhythmogenesis and CO2 sensitivity in Lithobates catesbeianus tadpole brainstems across metamorphosis. [PDF]

open access: yesRespir Physiol Neurobiol, 2019
Bullfrog tadpoles ventilate both the buccal cavity and lung. In isolated brainstems, the midbrain/pons influences CO2 responsiveness and timing of lung ventilatory bursting, depending on larval development. However, little is known about midbrain/pons influences on buccal burst patterns.
Reed MD   +3 more
europepmc   +4 more sources

Combating adult invasive American bullfrog Lithobates catesbeianus [PDF]

open access: yesEuropean Journal of Wildlife Research, 2014
American bullfrog Lithobates catesbeianus is considered as one of the world’s worst alien invasive species. Currently, the species is present over almost all continents and is suspected to cause substantial ecological damage. Knowledge about its population density, as well as catchability of the species with commonly used sampling gear, is very useful ...
Louette, Gerald   +2 more
openaire   +1 more source

iTRAQ-based comparative proteomic analysis of the Lithobates catesbeianus bullfrog spleen following challenge with Citrobacter freundii

open access: yesAquaculture Reports, 2022
As a common aquaculture pathogen, Citrobacter freundii has resulted in inconceivable economic losses in aquaculture. In this study, we investigated the spleen immune response of Lithobates catesbeianus to C. freundii infection at the protein level.
Peikui Yang   +8 more
doaj   +1 more source

Urbanization Facilitates Bullfrog Invasion Success and Exacerbates Native Amphibian Declines: A Natural Experiment From the COVID-19 Lockdown. [PDF]

open access: yesEcol Evol
This study investigates how urbanization amplifies the invasion of American bullfrogs and exacerbates declines in native amphibians in China's Yangtze Basin, using the COVID‐19 lockdown as a natural experiment. It finds that urban areas have higher bullfrog densities, likely due to human dispersal networks and permanent water sources, while native ...
Shi J   +9 more
europepmc   +2 more sources

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina [PDF]

open access: yes, 2017
Nearly a third (32.4%) of the world?s amphibian species are either threatened with extinction or already extinct (1). The chytrid fungus Batrachochytrium dendrobatidis (Bd) (Chytridiomycetes: Ryzophydiales) (2) has been recognized as responsible for mass
Ghirardi, Romina   +4 more
core   +1 more source

Investigating differences across host species and scales to explain the distribution of the amphibian pathogen Batrachochytrium dendrobatidis. [PDF]

open access: yesPLoS ONE, 2014
Many pathogens infect more than one host species, and clarifying how these different hosts contribute to pathogen dynamics can facilitate the management of pathogens and can lend insight into the functioning of pathogens in ecosystems.
Anna C Peterson, Valerie J McKenzie
doaj   +1 more source

Lithobates catesbeianus (American Bullfrog) oocytes: a novel heterologous expression system for aquaporins. [PDF]

open access: yesBiol Open, 2018
Xenopus laevis oocytes are a valuable tool for investigating the function of membrane proteins. However, regulations around the world, specifically in Brazil, render the import of Xenopus laevis frogs impractical, and, in some cases, impossible. Here, as an alternative, we evaluate the usefulness of the North American aquatic bullfrog Lithobates ...
Kabutomori J   +3 more
europepmc   +4 more sources

Multihost saprobes are facultative pathogens of bullfrog Lithobates catesbeianus eggs [PDF]

open access: yesDiseases of Aquatic Organisms, 2012
Pathogens that infect more than one host species create complex linkages in ecological communities. We tested whether saprobes that grow on multiple host species in aquatic systems can be facultative pathogens of amphibian eggs. We isolated oomycetes from dead arthropods, vertebrates, plant leaves, and frog eggs that coexisted in a small pond. Analysis
Gregory R, Ruthig   +1 more
openaire   +2 more sources

Topografia e irrigação do oviduto da rã-touro Lithobates catesbeianus (Shaw, 1802)

open access: yesBiotemas, 2013
A rã-touro (Lithobates catesbeianus) é uma espécie nativa da América do Norte. Ela pode atingir aproximadamente 20 cm de comprimento e um peso corpóreo de 500 g.
Marcela Cristina Lisboa   +3 more
doaj   +1 more source

CHORUSING PATTERNS OF A DIVERSE ANURAN COMMUNITY, WITH AN EMPHASIS ON SOUTHERN CRAWFISH FROGS (LITHOBATES AREOLATUS AREOLATUS) [PDF]

open access: yes, 2016
Wildlife surveys have a critical role in conservation efforts and the collection of life history data. For anuran amphibians these surveys often focus on calling males.
Ligon, Day B., McKnight, Donald T.
core   +2 more sources

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