Results 1 to 10 of about 180 (119)

Variation in pigmentation gene expression is associated with distinct aposematic color morphs in the poison frog Dendrobates auratus [PDF]

open access: yesBMC Evolutionary Biology, 2019
Background Color and pattern phenotypes have clear implications for survival and reproduction in many species. However, the mechanisms that produce this coloration are still poorly characterized, especially at the genomic level.
Adam M. M. Stuckert   +6 more
doaj   +7 more sources

Reproductive activity of the frog Dendrobates auratus Girard in captivity breeding [PDF]

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
Research of the reproduction activities of Dendrobates auratus Girard, 1855 is part of a broader ana­ly­sis of the problems encountered when keeping frogs from the family Dendrobatidae in captivity.
Romana Křížová
doaj   +2 more sources

Sodium ion channel alkaloid resistance does not vary with toxicity in aposematic Dendrobates poison frogs: An examination of correlated trait evolution. [PDF]

open access: yesPLoS ONE, 2018
Spatial heterogeneity in the strength or agents of selection can lead to geographic variation in ecologically important phenotypes. Many dendrobatid frogs sequester alkaloid toxins from their diets and often exhibit fixed mutations at NaV1.4, a voltage ...
Michael L Yuan, Ian J Wang
doaj   +2 more sources

The mitochondrial genomes of three species of poison frogs (Anura: Dendrobates) [PDF]

open access: yesMitochondrial 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   +2 more sources

Environmental and Host Effects on Skin Bacterial Community Composition in Panamanian Frogs [PDF]

open access: yesFrontiers in Microbiology, 2018
Research on the amphibian skin microbiota has focused on identifying bacterial taxa that deter a pathogenic chytrid fungus, and on describing patterns of microbiota variation. However, it remains unclear how environmental variation affects amphibian skin
Brandon J. Varela   +6 more
doaj   +2 more sources

Kin discrimination in cannibalistic tadpoles of the Green Poison Frog, Dendrobates auratus (Anura, Dendrobatidae) [PDF]

open access: yesPhyllomedusa: Journal of Herpetology, 2009
Cannibalizing a related individual can reduce the inclusive fitness of the cannibal. Hence, mechanisms that allow a tadpole to recognize and modify its behavior toward kin may reduce the inclusive fitness costs of cannibalism.
Heather M. Gray   +2 more
doaj   +2 more sources

No evidence of quantitative honest signaling in aposematic traits of the green and black dendrobatid frog <i>Dendrobates auratus</i> in Costa Rica. [PDF]

open access: yesCurr Zool
Abstract Aposematism is an antipredator strategy in which conspicuous coloration acts as a warning of chemical defenses to potential predators. Evidence suggests that aposematism largely functions under positive frequency-dependent selection, which is thought to maintain uniformity of aposematic signals.
Porras-Brenes K, Church G, Saporito RA.
europepmc   +2 more sources

Pairing Noninvasive Surveys with Capture-Recapture Analysis to Estimate Demographic Parameters for Dendrobates auratus (Anura: Dendrobatidae) from an Altered Habitat in Costa Rica

open access: yesPhyllomedusa: Journal of Herpetology, 2014
Amphibian populations are in decline worldwide. Monitoring programas are important, but many studies use invasive techniques to handle, mark, and identify individuals.
Michael V. Cove, R. Manuel Spínola
doaj   +3 more sources

Phenotypic and molecular variation in the green and black poison-dart frog Dendrobates auratus (Anura: Dendrobatidae) from Costa Rica

open access: yesRevista de Biología Tropical, 2009
The green and black poison-dart frog Dendrobates auratus exhibits high intraspecific variation in hue color and pattern throughout its range, making it a very popular species in the pet trade.
Lisa D Patrick, Mahmood Sasa
doaj   +4 more sources

Unusual whitish eggs in the poison frogDendrobates auratusGirard, 1855 [PDF]

open access: yesTropical Zoology, 2012
Poison frogs in the genus Dendrobates (sensu Grant et al. 2006) are known to lay black pigmented eggs. During a field study in May 2010 in central Panama, a captive pair of wild-caught adult Dendrobates auratus laid a clutch of whitish eggs. The eggs developed and metamorphic froglets were similar in size and color to that of age-matched normal-colored
Eric E. Flores   +2 more
openaire   +1 more source

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