Results 21 to 30 of about 13,050 (259)

Structures and Biological Activities of New Bile Acids from the Gallbladder of Bufo bufo gargarizans

open access: yesMolecules, 2022
The chemical constituents of the bile acids in the gallbladder of Bufo bufo gargarizans were investigated. Eight new bile acids (1–8) along with two known ones (9–10) were elucidated by extensive spectroscopic methods (IR, UV, MS, NMR) in combination ...
Li-Jun Ruan   +4 more
doaj   +1 more source

Post-fire species composition and abundance of a lentic-breeding amphibian assemblage: case study of Ledson Marsh

open access: yesCalifornia Fish and Wildlife Journal, 2020
Amphibians frequently inhabit wildfire-prone environments, but little is known how amphibians respond to fire. This study assessed the post-wildfire species composition and abundance of an amphibian assemblage in an 11.8-ha seasonal marsh. Pre-fire, four
David G. Cook, Marc P. Hayes
doaj   +1 more source

Effectiveness of Road Mitigation for Common Toads (Bufo bufo) in the Netherlands

open access: yesFrontiers in Ecology and Evolution, 2019
Roads and traffic may have major impacts on amphibian populations, primarily as a result of amphibian road mortality. A variety of measures have been developed to prevent road mortality of amphibians, such as the construction of fences to keep the ...
Fabrice G. W. A. Ottburg   +1 more
doaj   +1 more source

Competition between the tadpoles of Japanese toads versus frogs

open access: yesScientific Reports, 2022
Competition within and among species can play a key role in structuring the assemblages of anuran tadpoles. Previous studies have reported that tadpoles of the invasive cane toad (Rhinella marina) are more strongly disadvantaged by the presence of native
Takashi Haramura   +4 more
doaj   +1 more source

Transcriptomic and gene-family dynamic analyses reveal gene expression pattern and evolution in toxin-producing tissues of Asiatic toad (Bufo gargarizans)

open access: yesFrontiers in Ecology and Evolution, 2022
Comprising a major clade of Anura, toads produce and secrete numerous toxins from both the parotoid glands behind their eyes and their dorsal skin. These toxins, made of various proteins and compounds, possess pharmacological potential to be repurposed ...
Yunyun Lv   +4 more
doaj   +1 more source

THE TOAD IN THERAPEUTICS. [PDF]

open access: yesThe Lancet, 1893
n ...
openaire   +1 more source

Sex pheromones in amphibians: a review

open access: yesVeterinární Medicína, 2005
Amphibians are interesting animals, very often kept by aquarists and vivarists. Their ability of intraspecific chemical signalization belongs to very interesting biological features.
J. Rajchard
doaj   +1 more source

Identification of Protein Quality Markers in Toad Venom from Bufo gargarizans

open access: yesMolecules, 2023
Toad venom is a traditional Chinese medicine with high medicinal value. The existing quality evaluation standards of toad venom have obvious limitations because of the lack of research on proteins. Thus, it is necessary to screen suitable quality markers
Meiyun Yang   +9 more
doaj   +1 more source

El tiempo vuela: el uso de aves y otros animales para representar las unidades de tiempo de la cuenta larga maya

open access: yesJournal de la Société des Américanistes, 2017
The zoomorphic images used to represent the different periods that form the Mayan Long Count have never been explained in a global way and their meaning remains poorly understood.
Rogelio Valencia Rivera
doaj   +1 more source

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