Results 11 to 20 of about 4,686 (246)

Testing the Role of Natural and Sexual Selection on Testes Size Asymmetry in Anurans

open access: yesBiology, 2023
Directional asymmetry in testes size is commonly documented in vertebrates. The degree of testes size asymmetry has been confirmed to be associated with natural and sexual selection. However, the role of natural and sexual selection driving variations in
Shengnan Chen   +3 more
doaj   +1 more source

Sex Determination in Two Species of Anuran Amphibians by Magnetic Resonance Imaging and Ultrasound Techniques

open access: yesAnimals, 2020
The objective of the present study was to evaluate whether gender determination in two amphibian species (Kaloula pulchra and Xenopus laevis) can be reliably carried out by means of magnetic resonance imaging (benchtop magnetic resonance imaging; BT-MRI)
María José Ruiz-Fernández   +9 more
doaj   +1 more source

Geographical variation of organ size in Andrew’s toad (Bufo andrewsi)

open access: yesFrontiers in Ecology and Evolution, 2022
Phenotypic variation of morphological and physiological traits is assumed to be generated from spatial heterogeneity in environments, and it has been regarded as an important concern domain in evolutionary biology.
Xin Zhu   +14 more
doaj   +1 more source

Delineating the anuran axial skeleton

open access: yesThe International Journal of Developmental Biology, 2021
The axial skeleton of the anurans has undergone an evolutionary reduction of its bone elements. This structural plan is strongly preserved throughout the order and would have emerged as a highly specialized anatomical adaptation to its locomotor jumping pattern.
Sanchez, Sara Serafina del V.   +1 more
openaire   +3 more sources

Evolutionary insights into umami, sweet, and bitter taste receptors in amphibians

open access: yesEcology and Evolution, 2021
Umami and sweet sensations provide animals with important dietary information for detecting and consuming nutrients, whereas bitter sensation helps animals avoid potentially toxic or harmful substances. Enormous progress has been made toward animal sweet/
Huaming Zhong   +3 more
doaj   +1 more source

The European Market Remains the Largest Consumer of Frogs’ Legs from Wild Species

open access: yesConservation, 2023
The loss of biodiversity due to overexploitation is well known, but a review and regulation of species used in the frogs’ legs trade has yet to be accomplished.
Mark Auliya   +5 more
doaj   +1 more source

Anuran swingers: misdirected mating attempts occurred early during anuran diversification

open access: yesBiological Journal of the Linnean Society, 2023
Abstract Promiscuity, explosive breeding and male-biased operational sex-ratios can affect the strength of male selectivity and may play major roles in the expression of misdirected matings (with conspecific males, other species, corpses or objects) in anuran amphibians.
Brischoux, François   +1 more
openaire   +2 more sources

Brain regeneration in anuran amphibians [PDF]

open access: yesDevelopment, Growth & Differentiation, 2007
Urodele amphibians are highly regenerative animals. After partial removal of the brain in urodeles, ependymal cells around the wound surface proliferate, differentiate into neurons and glias and finally regenerate the lost tissue. In contrast to urodeles, this type of brain regeneration is restricted only to the larval stages in anuran amphibians ...
Tetsuya, Endo   +3 more
openaire   +2 more sources

The importance of determining species sensitivity to environmental change: a tree frog example

open access: yesEcosphere, 2021
Conservation schemes typically place species into categories, ranging roughly from rare to common or from vulnerable to least concern. Although a species may not be categorized as rare or vulnerable, it still may be sensitive to environmental change and,
Earl D. McCoy   +2 more
doaj   +1 more source

Basidioboliasis in Anurans in Florida [PDF]

open access: yesJournal of Wildlife Diseases, 2002
Members of the genus Basidiobolus, a saprophytic fungus, have been associated with the digestive tracts of a wide variety of amphibians and reptiles. To elucidate the relationship of Basidiobolus sp. with amphibians in central Florida (USA), we document the occurrence of the fungus in the digestive tracts of Bufo terrestris, Buffo quercicus, Hyla ...
Rex T, Nelson   +3 more
openaire   +2 more sources

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