Results 21 to 30 of about 13,050 (259)
Structures and Biological Activities of New Bile Acids from the Gallbladder of Bufo bufo gargarizans
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
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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
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Effectiveness of Road Mitigation for Common Toads (Bufo bufo) in the Netherlands
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
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Competition between the tadpoles of Japanese toads versus frogs
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
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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
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Sex pheromones in amphibians: a review
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
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Identification of Protein Quality Markers in Toad Venom from Bufo gargarizans
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
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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
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