Results 21 to 30 of about 180 (119)

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

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

ESTUDIO DE LAS RANAS Y SAPOS DE LAS TIERRAS COLECTIVAS DEL RÍO BALSAS, DARIÉN, PANAMÁ

Tecnociencia
El objetivo de este estudio fue inventariar los anuros de los bosques antiguos durante los años 2019 y 2022 en las Tierras Colectivas Emberá del Río Balsas, en Darién, Panamá. En la cuenca del Rio Balsas se realizaron muestreos diurnos y en las primeras
Heather M. Gray , Roberto Ibáñez, Héctor Barrios , Catherine Potvin McGill , Delfino Casamá , Andrés Olea , Irvin Salazar   +6 more
doaj   +1 more source

Tap dancing frogs: Posterior toe tapping and feeding in Dendrobates tinctorius

Ethology, Volume 130, Issue 7, July 2024.
Various species of amphibians are known to tap their toes, but the precise function of this behavior remains mysterious. We demonstrated that Dendrobates tinctorius poison frogs tap more while feeding, especially in the presence of a conspecific. Tap rate was also higher when prey was accessible and when on pliable surfaces. We suggest tapping may stir
Thomas Q. Parrish, Eva K. Fischer
wiley   +1 more source

Bromeliad-Dwelling Frogs Revealed by Citizen Scientists

Diversity
Understanding species composition across temporal and spatial scales through participatory monitoring has contributed to the development of several studies focused on biodiversity in Neotropical ecosystems.
Cássio Zocca, Natalia Pirani Ghilardi-Lopes, Rodrigo Barbosa Ferreira   +2 more
doaj   +1 more source

Ultrastructural patterns of secretory activity in poison cutaneous glands of larval and juvenile Dendrobates auratus (Amphibia, Anura)

Toxicon, 2003
A transmission electron-microscope study has been performed on larval and juvenile skin of the Central American arrow-frog Dendrobates auratus to investigate early secretory processes and maturational changes in the serous (poison) glands. Poison biosynthesis involves the endoplasmic reticulum (both smooth and rough types), as well as Golgi stacks ...
DELFINO, GIOVANNI, R. ANGEL, J. PARRA
openaire   +3 more sources

Desarrollo neural, somitogénesis y morfología interna de los embriones de Hyloxalus vertebralis y Dendrobates auratus (Anura: Dendrobatidae)

Revista Ecuatoriana de Medicina y Ciencias Biológicas, 2017
Se analizaron y compararon las características de la neurulación, morfología interna de los embriones desde la néurula hasta la eclosión del renacuajo y el modo de miogénesis de dos especies de ranas de la familia Dendrobatidae (Hyloxalus vertebralis y Dendrobates auratus) con otras especies de la misma familia y Xenopus laevis.
Francisca Hervas Sotomayor, Eugenia M. del Pino   +1 more
openaire   +1 more source

Análisis de tablas de vida de dos poblaciones aisladas de Dendrobates auratus (Anura: Dendrobatidae) en Costa Rica

Revista Biodiversidad Neotropical, 2011
Life-tables are important tools for population knowledge and conservation. This study analyzes life- tables for two isolated populations of Dendrobates auratus from Costa Rica. A direct visual survey with direct capture was completed at La Suerte Biological Station in a secondary Humid Tropical Forest on the Caribbean coast and Playa Hermosa ...
José F. González-Maya, Marianela Calvo, Marco Aguilar, Iván Cruz-Lizano, Armando H. Escobedo-Galván   +4 more
openaire   +1 more source

ANFIBIOS EN LA RESERVA FORESTAL LA TRONOSA: DIVERSIDAD Y ESTADO DE CONSERVACIÓN

Tecnociencia, 2006
    Confirmamos 16 anfibios correspondientes a 11 géneros que pertenecen a 6 familias y 2 órdenes en la Reserva Forestal La Tronosa, Provincia de Los Santos, República de Panamá.
Johana Cedeño, Víctor Martínez Cortés, Humberto Fossatti   +2 more
doaj