Results 21 to 30 of about 1,434 (204)
Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae). [PDF]
Mol EcolABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Abondano Almeida D +4 more
europepmc +2 more sources
Mitochondrial Phylogenomics and Genome Evolution in Anura: Insights From Structure and Gene Order Rearrangements. [PDF]
Ecol EvolBy 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
Captive Breeding Reveals Insights Into the Ecology and Reproductive Biology of 11 Little-Known Malagasy Frog Species. [PDF]
Zoo BiolAmphibian conservation efforts are limited by a lack of knowledge about their life history traits. At a conservation breeding facility in Andasibe, Madagascar, we observed diverse breeding patterns and egg numbers among 11 frog species, revealing links between reproductive strategies and environmental factors.
Rakotoarisoa JC +8 more
europepmc +2 more sources
Genome size evolution and phenotypic correlates in the poison frog family Dendrobatidae. [PDF]
Evolution, 2023 Abstract Adaptive and neutral processes have produced a spectrum of genome sizes across organisms. Amphibians in particular possess a wide range in C-values, from <1 to over 125 pg. However, the genome size of most amphibians is unknown, and no single family has been comprehensively assessed.
Douglas TE +4 more
europepmc +3 more sources
Don't You Know That I'm Toxic? Wild Birds Learn to Avoid a Novel Aposematic Warning Signal. [PDF]
Ecol EvolThe foraging behaviours of predators towards aposematic prey have been studied extensively and there is much empirical evidence to support this theory. Often, studies involving wild species are relatively short‐term and so there is a possibility that any aversive behaviours exhibited by predators are merely neophobic. In this study, we ensure predators
Thompson SG, Portugal SJ.
europepmc +2 more sources
The evolution of coloration and toxicity in the poison frog family (Dendrobatidae) [PDF]
Proceedings of the National Academy of Sciences, 2001 The poison frogs (family Dendrobatidae) are terrestrial anuran amphibians displaying a wide range of coloration and toxicity. These frogs generally have been considered to be aposematic, but relatively little research has been carried out to test the predictions of this hypothesis.
Summers, Kyle, Clough, Mark E.
openaire +3 more sources
Animal medical systems from Apis to apes: history, recent advances and future perspectives. [PDF]
Biol Rev Camb Philos SocABSTRACTAnimal medical systems encompass a wide range of behaviours aimed at maintaining or improving health. It has become clear that these behaviours are not limited to animals treating themselves (self‐medication) but also include the treatment of group members, resulting in the adoption of the more inclusive term “animal medication”. Behaviour with
Pusceddu M +5 more
europepmc +2 more sources
Skin transcriptional profiles in Oophaga poison frogs [PDF]
Genetics and Molecular Biology, 2020 Aposematic organisms advertise their defensive toxins to predators using a variety of warning signals, including bright coloration. While most Neotropical poison frogs (Dendrobatidae) rely on crypsis to avoid predators, Oophaga poison frogs from South ...
Andrés Posso-Terranova, José Andrés
doaj +1 more source
The mitochondrial genomes of three species of poison frogs (Anura: Dendrobates)
Mitochondrial DNA. Part B. Resources, 2017 We reconstructed nearly complete mitogenomes for three species of poison frogs, Dendrobates auratus, D. leucomelas, and D. tinctorius, from RNAseq data. We recovered the 13 protein-coding genes, 22 tRNA genes (except tRNA-Val for D.
Mariana L. Lyra +5 more
doaj +1 more source
Ecology and Evolution, 2019 Ecological studies of species pairs showed that biotic interactions promote phenotypic change and eco‐evolutionary feedbacks. However, it is unclear how phenotypes respond to synergistic interactions with multiple taxa.
Ivan Prates +3 more
doaj +1 more source