Results 31 to 40 of about 416 (142)

A simplified table for staging embryos of the pipid frog Pipa arrabali

Anais da Academia Brasileira de Ciências
Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P.
OLÍVIA G.S. ARAÚJO, CÉLIO F.B. HADDAD, HÉLIO R. DA SILVA, LOURDES A. PUGENER   +3 more
doaj   +1 more source

Reversal to air-driven sound production revealed by a molecular phylogeny of tongueless frogs, family Pipidae

BMC Evolutionary Biology, 2011
Background Evolutionary novelties often appear by conferring completely new functions to pre-existing structures or by innovating the mechanism through which a particular function is performed.
Glaw Frank, San Mauro Diego, Vences Miguel, Irisarri Iker, Zardoya Rafael   +4 more
doaj   +1 more source

Chromosome Banding in Amphibia. XXXII. The Genus Xenopus (Anura, Pipidae) [PDF]

Cytogenetic and Genome Research, 2015
Mitotic chromosomes of 16 species of the frog genus <i>Xenopus</i> were prepared from kidney and lung cell cultures. In the chromosomes of 7 species, high-resolution replication banding patterns could be induced by treating the cultures with 5-bromodeoxyuridine (BrdU) and deoxythymidine (dT) in succession, and in 6 of these species the BrdU/
Schmid, Michael, Steinlein, Claus
openaire   +3 more sources

Dual processing of sulfated steroids in the olfactory system of an anuran amphibian

Frontiers in Cellular Neuroscience, 2015
Chemical communication is widespread in amphibians, but if compared to later diverging tetrapods the available functional data is limited. The existing information on the vomeronasal system of anurans is particularly sparse.
Alfredo eSansone, Thomas eHassenklöver, Thomas eHassenklöver, Thomas eOffner, Thomas eOffner, Xiaoyan eFu, Timothy E Holy, Ivan eManzini, Ivan eManzini   +8 more
doaj   +1 more source

Amphibians and Reptiles of Ethiopia—Biogeography, Conservation Priority Areas, and Potentials for “One Plan Approach” Conservation Measures 埃塞俄比亚的两栖爬行动物——生物地理学、保育优先区及“一体化方案”保育措施的潜力

Integrative Conservation, Volume 4, Issue 3, Page 442-463, September 2025.
In this study, we analyze the conservation status of Ethiopia's amphibian and reptile diversity in terms of coverage with protected areas and global representation in conservation breeding facilities. We identify conservation gaps and suggest priorities for improvement.
Kolja Sperling, Helen Isselhard, Thomas Ziegler, Dennis Rödder   +3 more
wiley   +1 more source

Impacts of sequential and simultaneous coinfection by major amphibian pathogens on disease outcomes

Ecosphere, Volume 16, Issue 8, August 2025.
Abstract In natural environments, hosts frequently experience infections from multiple pathogenic species or strains, significantly influencing disease dynamics. Despite shared susceptible hosts and overlapping distributions, the impacts of coinfections by the two most threatening global amphibian pathogens, Batrachochytrium dendrobatidis (Bd) and ...
Evelyn Faust, Tamilie Carvalho, Francisco De Jesus Andino, Jacques Robert, Timothy Y. James   +4 more
wiley   +1 more source

Interplay of Genotypic and Thermal Effects on Sex Determination Shapes Climatic Distribution in Herpetofauna

Global Ecology and Biogeography, Volume 34, Issue 7, July 2025.
ABSTRACT Aim Sex is a fundamental trait of many organisms, and sex‐determination systems are diverse across the tree of life. Environmental temperature can influence sexual development not only in temperature‐dependent sex‐determination systems, but also in species with genotypic sex determination (GSD). Temperature‐induced sex reversal, resulting from
Edina Nemesházi, Veronika Bókony
wiley   +1 more source

Evidence for directional selection at a novel major histocompatibility class I marker in wild common frogs (Rana temporaria) exposed to a viral pathogen (Ranavirus).

PLoS ONE, 2009
Whilst the Major Histocompatibility Complex (MHC) is well characterized in the anuran Xenopus, this region has not previously been studied in another popular model species, the common frog (Rana temporaria).
Amber G F Teacher, Trenton W J Garner, Richard A Nichols   +2 more
doaj   +1 more source

Pheomelanin in the skin of Hymenochirus boettgeri (Amphibia: Anura: Pipidae)

Experimental Dermatology, 2012
AbstractPheomelanin is supposed to be the first type of melanin found in vertebrates, in contrast to the main type – eumelanin. Our study aimed at detecting pheomelanin in the skin of Hymenochirus boettgerii. We employed electron paramagnetic resonance (EPR) spectroscopy, and transmission electron microscopy (TEM), supplemented with standard histology ...
Wolnicka-Głubisz, Agnieszka, Pecio, Anna, Podkowa, Dagmara, Kołodziejczyk, Łukasz M., Płonka, Przemysław   +4 more
openaire   +3 more sources

The morphology and attachment of Protopolystoma xenopodis (Monogenea: Polystomatidae) infecting the African clawed frog Xenopus laevis

Parasite, 2014
The African clawed frog Xenopus laevis (Anura: Pipidae) is host to more than 25 parasite genera encompassing most of the parasitic invertebrate groups. Protopolystoma xenopodis Price, 1943 (Monogenea: Polystomatidae) is one of two monogeneans infecting X.
Theunissen Maxine, Tiedt Louwrens, Du Preez Louis H.   +2 more
doaj   +1 more source