Results 21 to 30 of about 281 (133)

Body size but not warning signal luminance influences predation risk in recently metamorphosed poison frogs. [PDF]

Ecol Evol, 2015
During early development many aposematic species have bright and conspicuous warning appearance, but have yet to acquire chemical defenses, a phenotypic state which presumably makes them vulnerable to predation. We deployed artificial prey of green‐and‐black poison frogs in the field, and show that rates of attack by bird predators were significantly ...
Flores EE, Stevens M, Moore AJ, Rowland HM, Blount JD.   +4 more
europepmc   +2 more sources

Investigating signal modalities of aposematism in a poison frog

Journal of Evolutionary Biology, Volume 36, Issue 7, Page 1003-1009, July 2023., 2023
In this manuscript, we asked if predators avoid poison frogs by their sense of smell alone. We found that experienced predators can indeed avoid poison by smell alone, indicating the importance of examining other modalities of potential communication in aposematic vertebrates.
Adam M. M. Stuckert, Kyle Summers
wiley   +1 more source

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

Tropical 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, Allen J. Moore, Jonathan D. Blount   +2 more
openaire   +1 more source

An investigation of toe‐tapping behaviour in anurans by analysis of online video resources

Journal of Zoology, Volume 312, Issue 3, Page 158-162, November 2020., 2020
A database of online videos featuring feeding toads and frogs, particularly Dendrobatidae, was constructed in order to investigate factors affecting toe tapping, a behaviour which has been noted to accompany feeding across various taxa. The collected data revealed 19 species which have previously not been reported to exhibit the behaviour and a ...
L. S. A. Claessens, N. O. Ganchev, M. M. Kukk, C. J. Schutte, J. J. Sloggett   +4 more
wiley   +1 more source

Evolutionary integration of the frog cranium

Evolution, Volume 74, Issue 6, Page 1200-1215, June 2020., 2020
Abstract Evolutionary integration (covariation) of traits has long fascinated biologists because of its potential to elucidate factors that have shaped morphological evolution. Studies of tetrapod crania have identified patterns of evolutionary integration that reflect functional or developmental interactions among traits, but no studies to date have ...
Carla Bardua, Anne‐Claire Fabre, Margot Bon, Kalpana Das, Edward L. Stanley, David C. Blackburn, Anjali Goswami   +6 more
wiley   +1 more source

Experimental evidence that toe-tapping behavior in the green-and-black poison frog (Dendrobates auratus) is related to prey detection

acta ethologica, 2023
AbstractToe-tapping, the quick movement of the middle toes of the hind legs, has been observed in many frogs and toads, and is usually associated with feeding, calling, or courtship behaviors. While plenty of observations of toe-tapping exist for different species, experimental evidence regarding the stimuli triggering this behavior is almost non ...
Lisa M. Schulte, Yannis König
openaire   +1 more source

Infection with Batrachochytrium dendrobatidis is common in tropical lowland habitats: Implications for amphibian conservation

Ecology and Evolution, Volume 9, Issue 8, Page 4917-4930, April 2019., 2019
We conducted a survey testing for the fungal pathogen Batrachochytrium dendrobatidis (Bd) in four lowland sites in Costa Rica to identify local host‐pathogen dynamics and to describe the abiotic environment for this pathogen. We found evidence that lowland study sites exhibit enzootic dynamics with low infection intensity and moderate to high ...
Héctor Zumbado‐Ulate, Adrián García‐Rodríguez, Vance T. Vredenburg, Catherine Searle   +3 more
wiley   +1 more source

Dendrobates auratus skin transcriptome

, 2018
<p>A skin transcriptome from the Neotropical poison frog Dendrobates auratus.
Stuckert, Adam M M, Stuckert, Adam M M (8223894)   +1 more
core   +1 more source

Development and gastrulation in Hyloxalus vertebralis and Dendrobates auratus (Anura: Dendrobatidae)

, 2014
Hervas, Francisca, Torres, Karina P., Montenegro-Larrea, Paola, del Pino, Eugenia M. (2015): Development and gastrulation in Hyloxalus vertebralis and Dendrobates auratus (Anura: Dendrobatidae).
Hervas, Francisca, Torres, Karina P., Montenegro-Larrea, Paola, del Pino, Eugenia M.   +3 more
openaire   +3 more sources

Adult poison dart frogs avoid potential heterospecific competitors using their sense of smell

Ethology, Volume 130, Issue 8, August 2024.
Little is known about the use of chemical senses in frogs. Using a two‐choice testing arena, we tested the reaction of adult poison dart frogs to different odours. We show first evidence of the avoidance of heterospecific odours and conclude that olfaction in these frogs plays a more prominent role than previously believed.
Elisa Schulze, Konrad Lipkowski, Diana Abondano Almeida, Lisa M. Schulte   +3 more
wiley   +1 more source