Results 61 to 70 of about 1,388 (173)

"Efectos Hormonales "In Vivo" en la toma de Glucosa y Formación de Glucógeno Determinados en el Corazón Aislado de Sapo"

open access: yesRevista Colombiana de Endocrinología, Diabetes y Metabolismo, 2018
INTRODUCCION El propósito de este trabajo es medir la toma de glucosa y la formación de glucógeno por el corazón aislado de sapo “Bufo-Marinus” y observar el efecto de las siguientes hormonas: Prolactina, hormona de crecimiento (GH ...
M. A. Luján   +3 more
doaj   +1 more source

The genetic basis of dispersal in a vertebrate metapopulation

open access: yesMolecular Ecology, Volume 33, Issue 6, March 2024.
Abstract Dispersal affects evolutionary processes by changing population size and genetic composition, influencing the viability and persistence of populations. Investigating which mechanisms underlie variation in dispersal phenotypes and whether populations harbour adaptive potential for dispersal is crucial to understanding the eco‐evolutionary ...
Dilan Saatoglu   +7 more
wiley   +1 more source

Expresión heteróloga de ARN mensajeros de Leishmania en ovocitos de anfibios

open access: yesActa Biológica Colombiana, 2006
La técnica de expresión heteróloga en ovocitos de Xenopus laevis ha sido ampliamente utilizada para la caracterización funcional de canales iónicos.
Rubén Darío Arroyo Olarte   +1 more
doaj  

Field trials of chemical suppression of embryonic cane toads (Rhinella marina) by older conspecifics

open access: yesEcology and Evolution, 2020
Laboratory experiments have shown that the viability of embryos of the invasive cane toad (Rhinella marina) can be reduced by exposure to chemical cues from older conspecific larvae.
Samantha McCann   +3 more
doaj   +1 more source

Ventilatory behaviors of the toad Bufo marinus revealed by coherence analysis

open access: yesBrazilian Journal of Biology
Breathing in amphibians is a remarkably complex behavior consisting of irregular breaths that may be taken singly or in bouts that are used to deflate and inflate the lungs.
F. C. Coelho   +2 more
doaj   +1 more source

Electrical responses of rods in the retina of Bufo marinus

open access: yesThe Journal of Physiology, 1977
1. Intracellular responses to flashes and steps of light have been recorded from the outer segment and the cell body of rods in the retina of the Bufo marinus. The identification of the origin of recorded responses has been confirmed by intracellular marking.2.
CERVETTO, LUIGI, PASINO E, TORRE V.
openaire   +5 more sources

Moving south: effects of water temperatures on the larval development of invasive cane toads (Rhinella marina) in cool‐temperate Australia

open access: yesEcology and Evolution, 2016
The distributional limits of many ectothermic species are set by thermal tolerances of early‐developmental stages in the life history; embryos and larvae often are less able to buffer environmental variation than are conspecific adults.
Uditha Wijethunga   +2 more
doaj   +1 more source

Excitabilidad iterativa y actividad rítmica de los músculos estriados: contracción prosténica

open access: yesRevista de la Facultad de Medicina, 1957
Se hace un estudio sobre la historia de la excitabilidad iterativa. Se relaciona la excitabilidad iterativa con la contracción prosténica. Se describen los caracteres de esta variedad de contracción muscular, a saber: contracción rítmica que aparece en ...
Hernando Ordoñez
doaj  

Ventilatory behaviors of the toad Bufo marinus revealed by coherence analysis

open access: yesBrazilian Journal of Biology, 2003
Breathing in amphibians is a remarkably complex behavior consisting of irregular breaths that may be taken singly or in bouts that are used to deflate and inflate the lungs.
Coelho F. C.   +2 more
doaj  

ALIMENTACIÓN DE BUFO MARINUS (LINNAEUS, 1758) (BUFONIDAE: ANURA), EN UNA LOCALIDAD DE SUCRE, COLOMBIA

open access: yesCaldasia, 2011
Se realizaron recolectas nocturnas de Bufo marinus en una localidad del departamento de Sucre. Se recolectaron 197 ejemplares, de los cuales 128 fueron hembras y 69 machos.
Sampedro Alcides, et al
doaj  

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