Results 31 to 40 of about 1,535 (176)

A review of chemical defense in harlequin toads (Bufonidae; Atelopus)

open access: yesToxicon: X, 2021
Toads of the genus Atelopus are chemically defended by a unique combination of endogenously synthesized cardiotoxins (bufadienolides) and neurotoxins which may be sequestered (guanidinium alkaloids). Investigation into Atelopus small-molecule chemical defenses has been primarily concerned with identifying and characterizing various forms of these ...
Kannon C. Pearson, Rebecca D. Tarvin
openaire   +7 more sources

Amphibia and Reptilia, Quebrada de los Cuervos, Departamento de Treinta y Tres, Uruguay [PDF]

open access: yesCheck List, 2011
We present an annotated list of the herpetofauna at the Protected Area Quebrada de los Cuervos, Departamento de Treinta y Tres, Uruguay. We recorded 24 species of amphibians and 29 of reptiles, accounting for near half of the species already reported ...
Carlos Prigioni   +2 more
doaj   +3 more sources

Frog tongue surface microstructures: functional and evolutionary patterns

open access: yesBeilstein Journal of Nanotechnology, 2016
Frogs (Lissamphibia: Anura) use adhesive tongues to capture fast moving, elusive prey. For this, the tongues are moved quickly and adhere instantaneously to various prey surfaces.
Thomas Kleinteich, Stanislav N. Gorb
doaj   +1 more source

Hematología y citoquímica de las células sanguíneas de Rhinella fernandezae (Anura: Bufonidae) en Espinal y Delta-Islas del río Paraná, Argentina

open access: yesRevista de Biología Tropical, 2011
La descripción de la hematología de los anfibios anuros es escasa, habiéndose realizado la mayoría de los trabajos en especies de Norteamérica, Asia y Europa. Con el propósito de obtener datos hematológicos para Rhinella fernandezae, fueron estudiados 23
Mariana C Cabagna Zenklusen   +6 more
doaj   +2 more sources

Uso dehabitats naturais e antrópicos pelos anuros em uma localidade no estado de Rondônia, Brasil (Amphibia: Anura) [PDF]

open access: yesActa Amazonica, 1999
Neste trabalho é apresentado a lista de espécies de anfíbios anuros da Fazenda Jaburi. Município de Espigão D'Oeste, Estado de Rondônia, enfocando os ambientes utilizados durante a atividade reprodutiva em áreas de floresta primária c campos de pastagens.
Paulo Sérgio BERNARDE   +3 more
doaj   +1 more source

Antipredatory Strategies of Anurans: An Updated Conceptual Review

open access: yesEthology, Volume 132, Issue 9, Page 662-708, September 2026.
To unravel the evolutionary dynamics of predator–prey interactions, we propose an updated, three‐tiered classification of anuran antipredatory strategies. By mapping non‐behavioral, individual, and group defenses across five functional phases, this integrative framework introduces the concept of synergetic coupling.
Ubiratã Ferreira Souza   +3 more
wiley   +1 more source

Where Lineages Persist: Phylogenetic Patterns and Evolutionary Vulnerability in South Africa's Herpetofauna

open access: yesDiversity and Distributions, Volume 32, Issue 8, August 2026.
ABSTRACT Aim Conservation under the current global biodiversity crisis demands strategic prioritisation to maximise the impact of limited resources. This study aims to integrate evolutionary history, an often‐overlooked component of biodiversity, alongside extinction risk to identify priority species and regions, assessing both the feasibility and ...
J. Alexander Nieto Lawrence   +3 more
wiley   +1 more source

Behavioral, physiological and morphological correlates of parasite intensity in the wild Cururu toad (Rhinella icterica)

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2017
Large numbers of parasites are found in various organs of anuran amphibians, with parasite intensities thought to modulate the host's Darwinian fitness traits.
Eduardo Hermógenes Moretti   +5 more
doaj   +1 more source

Exploring the Role of Prey Availability as a Driver of Seasonal Shifts in Local Distribution of Vipers (Trimeresurus spp)

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
We investigated how seasonal shifts in precipitation and prey availability affect the distribution of arboreal pit vipers (Trimeresurus spp.) in northern Thailand. Trimeresurus were confined to streamside habitats during the dry season but expanded into hillsides during the wet season, mirroring amphibian movements.
Alexander H. Murray   +5 more
wiley   +1 more source

Study on Life History Strategies of Anurans in Tropical Rainforest: Lifespan and Age at Sexual Maturity

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
This study presents the first comprehensive analysis of lifespan and age at sexual maturity in seven common anuran species from Hainan Island's tropical rainforest, filling a critical gap in tropical amphibian ecology. The results reveal significant interspecific variation in lifespan (5 ~ 9 years) and maturity age (3 ~ 5 years), indicating a “slow ...
Rui Guo   +5 more
wiley   +1 more source

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