Results 41 to 50 of about 4,604 (212)

Positive Darwinian selection results in resistance to cardioactive toxins in true toads (Anura: Bufonidae)

open access: yes, 2016
Members of the Family Bufonidae, true toads, are famous for their endogenously synthesized cardioactive steroids that serve as defensive toxins. Evolution of resistance to these toxins is not understood.
Keogh, J Scott   +4 more
core   +1 more source

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

Tree cavities as keystone structures in a semiarid region: Interspecific aggregations of anurans in the Brazilian Caatinga

open access: yesEcosphere, Volume 17, Issue 9, September 2026.
Abstract Tree cavities function as key microclimatic refuges for anurans in the semiarid Caatinga biome of northeastern Brazil, where we document previously unreported interspecific aggregations during the dry season. Observations from fauna rescue operations preceding vegetation clearance revealed eight distinct aggregations within cavities of two ...
Jaqueiuto Silva Jorge   +4 more
wiley   +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

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

An integrated physiological perspective on anthropogenic stressors in the Gulf coast toad (Incilius nebulifer)

open access: yesFrontiers in Ecology and Evolution, 2023
Anthropogenic environmental change, including climate change and urbanization, results in warmer temperatures in both terrestrial and aquatic habitats and changes in community assemblages including invasive species introductions, among many other ...
Dillon J. Monroe   +4 more
doaj   +1 more source

Impacts of Climate Change on Alpha and Beta Diversity Patterns of Cerrado anurans

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
We modeled the distribution of 139 anuran species to assess how climate change will reshape biodiversity patterns in the Brazilian Cerrado. Our results predict widespread species loss and reveal that biotic communities will be primarily restructured through species replacement.
Amanda Sabino   +4 more
wiley   +1 more source

Ontogeny and Homology of the Shoulder Joint and Forelimb Muscles in Frogs and Toads (Lissamphibia: Anura)

open access: yesJournal of Morphology, Volume 287, Issue 8, August 2026.
The ontogenetic development, innervation, and morphology of the shoulder joint and forelimb muscles were investigated in 11 anuran species. The results reveal largely conserved splitting patterns of the dorsal and ventral pre‐muscle masses, alongside interspecific variation in muscle subdivision and morphology.
Robin Saulnier Masson, Karolin Engelkes
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

The tadpole of the red-bellied toad, Melanophryniscus dorsalis (Mertens, 1933) (Anura: Bufonidae)

open access: yes, 2022
Freire, Marcelo D., Regnet, Ruth A., Machado, Ibere F., Loebmann, Daniel, Verrastro, Laura (2022): The tadpole of the red-bellied toad, Melanophryniscus dorsalis (Mertens, 1933) (Anura: Bufonidae). Zootaxa 5129 (3): 442-446, DOI: https://doi.org/10.11646/
Regnet, Ruth A.   +4 more
core   +1 more source

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