Results 11 to 20 of about 563 (143)

Advertisement call and diel pattern of Pseudis platensis (Anura, Hylidae, Pseudinae) in the Brazilian Pantanal and a bioacoustical comparison with Pseudis paradoxa

open access: yesZootaxa, 2020
Anuran advertisement calls are life history traits associated with sexual selection and reproduction, and they play an important role in premating isolation mechanisms between species. Comparative bioacoustical analyses of these calls can be useful for taxonomic purposes.
Pérez-Granados, Cristian   +2 more
core   +7 more sources

The tadpole of Pseudis minuta (Anura: Pseudidae), an apparent case of heterochrony [PDF]

open access: yesAmphibia-Reptilia, 1997
Abstract The external morphology, oral disc, and coloration pattern of the larva of Pseudis minuta are described. Tadpoles are mostly bottom dwellers that have a small, terminal oral disc with a labial tooth row formula 1(1-1)/(1-1)2.
Rafael O. de Sá, Esteban O. Lavilla
openaire   +5 more sources

Reproduction of Pseudis minuta (Anura, Hylidae) in southern Brazil

open access: yesPhyllomedusa: Journal of Herpetology, 2004
This study was based on individuals of Pseudis minuta captured or observed in the municipality of Candiota, Campanha region of the state of Rio Grande do Sul, southern Brazil. Sampling occurred along ten non-consecutive months in 2000, 2001 and 2002. The
Janaine Melchiors   +5 more
doaj   +1 more source

Chondrocranium and cranial muscle morphology in Lysapsus and Pseudis tadpoles (Anura: Hylidae: Hylinae) [PDF]

open access: yesActa Zoologica, 2006
AbstractThe chondrocranium and cranial muscles of Lysapsus limellum, Pseudis cardosoi, P. minuta and four subspecies of P. paradoxa (caribensis, occidentalis, paradoxa and platensis) are described. Lysapsus and Pseudis are related to the Hylidae by: (1) vertical processus anterolateralis of the larval crista parotica, and (2) presence of m ...
Alcalde, Leandro, Barg, Mónica Viviana
openaire   +3 more sources

Antimicrobial Peptides from Amphibian Innate Immune System as Potent Antidiabetic Agents: A Literature Review and Bioinformatics Analysis. [PDF]

open access: yesJ Diabetes Res, 2021
Antimicrobial peptides, as an important member of the innate immune system, have various biological activities in addition to antimicrobial activity. There are some AMPs with antidiabetic activity, especially those isolated from amphibians. These peptides can induce insulin release via different mechanisms based on peptide type.
Soltaninejad H   +6 more
europepmc   +2 more sources

Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements. [PDF]

open access: yesEcol Evol
By analyzing 277 anuran mitochondrial genomes, this study reconstructs a robust phylogeny for frogs and toads, tracing their origins to the Triassic and major radiations to the Cretaceous‐Neogene. The research identifies 58 distinct gene arrangement patterns, providing a novel evolutionary framework.
He J   +8 more
europepmc   +2 more sources

Gonadal Development in Larvae of the Paedomorphic Ambystoma mexicanum (Amphibia: Urodela). [PDF]

open access: yesJ Morphol
This research analyzes the gonads of Ambystoma mexicanum larvae of both sexes, revealing significant changes such as the onset of vitellogenesis in females at 9 months of age and oocytes with signs of maturity at 12 months. In males, gonadal maturity occurs earlier, with a notable cephalocaudal and lateromedial testicular regionalization, and ...
Sánchez-Ortiz JL   +2 more
europepmc   +2 more sources

Meal or mate: Exploring the evidence of sexual cannibalism among amphibians. [PDF]

open access: yesEcol Evol
Sexual cannibalism is a form of conspecific predation among adults, typically committed by females that consume potential or actual mating partners. We provide an observation of cannibalism involving an adult female green and golden bell frog, Litoria aurea, preying on a conspecific adult male during the species' breeding season.
Gould J, Beranek CT.
europepmc   +2 more sources

Osteología y relaciones filogenéticas de los anuros neobatracios del género Pseudis [PDF]

open access: yes, 2003
Los pseudidos constituyen un grupo de neobatracios acuáticos conocidos por el gran tamaño de suslarvas, el dedo dos de la mano oponible y la presencia de elementos intercalares largos entre la últimay la penúltima falange de cada dedo. Las relaciones filogenéticas del grupo son controvertidas y lasinterrelaciones entre las especies de Pseudis ...
Barg, Monica Viviana
core   +4 more sources

Selection of antimicrobial frog peptides and temporin-1DRa analogues for treatment of bacterial infections based on their cytotoxicity and differential activity against pathogens. [PDF]

open access: yesChem Biol Drug Des, 2020
With the aim of identifying antimicrobial peptides that could be further investigated as topical treatments for human or animal skin infections, we determined the MIC values of 14 naturally occurring amphibian peptides and 12 analogues of temporin‐1DRa against clinically relevant pathogens as well as probiotic lactobacilli.
Gaiser RA   +6 more
europepmc   +2 more sources

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