Results 41 to 50 of about 725 (180)

Food niche overlap between two sympatric leaf-litter frog species from Central Amazonia

Zoologia (Curitiba), 2012
We studied the feeding habits and similarities in the diet of two sympatric and syntopic Amazonian frog species, Anomaloglossus stepheni (Aromobatidae) and Leptodactylus andreae (Leptodactylidae) in a forested area in Central Amazonia. The breadth of the
Leandro Talione Sabagh, Renata da Silva Mello, Carlos Frederico Duarte Rocha   +2 more
doaj   +1 more source

Cytogenetics of Edalorhina perezi(Anura, Leptodactylidae).

CYTOLOGIA, 2000
Specimens of Edalorhina perezi Jimenez de la Espada from the Brazilian Amazon were studied cytogenetically using Giemsa staining, silver staining and C-banding. The diploid complement of 2n=22 agreed with the chromosome number previously described for Edalorhina sp. Morphologically, the E.
Lourenço, L. B., Cardoso, A. J., Recco-Pimentel, S. M.   +2 more
openaire   +2 more sources

Historical Climate and Biome Association Drove Phylogeographic Patterns in the Dwarf Swamp Frog (Anura: Leptodactylidae)

Zoologica Scripta, Volume 55, Issue 2, Page 220-231, March 2026.
ABSTRACT South America, a region with high biodiversity, has been profoundly shaped by geological events during the Miocene and Pliocene, as well as by climatic changes in the Pleistocene, leading to complex phylogeographic patterns. The diverse biomes and the biotic exchanges between them, particularly between the Amazon and the Cerrado, have ...
Aline N. da Silva, Fernando J. M. Rojas‐Runjaic, Manuela V. dos Santos, Gisele L. Nunes, Ana L. C. Prudente   +4 more
wiley   +1 more source

Combining thermal and hydric constraints for spatially predicting the activity suitability of Neotropical Leptodactylid frogs

Ecography, Volume 2026, Issue 1, January 2026.
Amphibians balance their thermal and water budgets depending on their physiological state and the physical environment, with both factors capable of constraining activity. Most mechanistic assessments emphasize thermal over water constraints, potentially missing important aspects of amphibian ecophysiological patterns.
Luis M. Senzano, Milton C. Ribeiro, Sidney F. Gouveia, Denis V. Andrade   +3 more
wiley   +1 more source

Escape behaviour in the Neotropical frog Hylodes asper (Anura: Leptodactylidae)

Acta Herpetologica, 2007
Predation is an important selective pressure in natural populations, leading to the bewildering diversity of antipredation strategies found in nature. However, studies focusing on real-time assessment and management of risks by prey are underrepresented ...
Claudio E.G. Patto, Marcio R. Pie
doaj   +1 more source

Amphibia, Anura, Coastal Zone, state of Piauí, Northeastern Brazil [PDF]

Check List, 2008
Amphibians are an important component of terrestrial and aquatic freshwater communities worldwide. Especially to the Northern coastal zone of Brazil, the knowledge about amphibian communities is very scarce.
Daniel Loebmann, Ana Mai
doaj   +3 more sources

Cytogenetics of two Species of Paratelmatobius (Anura: Leptodactylidae), with Phylogenetic Comments [PDF]

Hereditas, 2004
In this paper we provide a cytogenetic analysis of Paratelmatobius cardosoi and Paratelmatobius poecilogaster. The karyotypes of both species showed a diploid number of 24 chromosomes and shared some similarity in the morphology of some pairs. On the other hand, pairs 4 and 6 widely differed between these complements.
Lourenço, Luciana B., Garcia, Paulo C. A., Recco-Pimentel, Shirlei M.   +2 more
openaire   +3 more sources

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

Environmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva, Rennan Garcias Moreira, Jim Perry, Walisson Kenedy‐Siqueira, Guilherme Costa Baião, Daniel Negreiros, Fernando Figueiredo Goulart, Josimar Daniel Gomes, Geraldo Wilson Fernandes   +8 more
wiley   +1 more source

Frog Diversity in Central Amazonian Macrophyte Beds: The Role of Local Environmental Gradients

Austral Ecology, Volume 50, Issue 12, December 2025.
ABSTRACT Ecological assemblages can be shaped by neutral, niche‐based processes, or a combination of both. Understanding the influence of these processes and evaluating diversity measures based on taxonomic, functional, and phylogenetic metrics on the structure of ecological assemblages can show patterns and unravel community assembly mechanisms ...
Mahima Hemnani, Pedro Henrique Salomão Ganança, Rubia Neris Machado, Rafael de Fraga, Igor Luis Kaefer   +4 more
wiley   +1 more source

Organização celular dos testículos em Hylidae e Leptodactylidae, no Pantanal (Estado do Mato Grosso do Sul, Brasil) = Cellular organization of the testes in Hylidae and Leptodactylidae, in the Pantanal (Mato Grosso do Sul State, Brazil)

Acta Scientiarum: Biological Sciences, 2009
O objetivo deste trabalho foi analisar e comparar a organização das células germinativas em diferentes estádios de diferenciação celular nos machos adultos de Dendropsophus nanus (Boulenger, 1889), Pseudis limellum (Cope, 1862), Pseudis paradoxa ...
Adelina Ferreira, Ana Barbara dos Santos Rosa, Mahmoud Mehanna   +2 more
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