Results 81 to 90 of about 29,053 (211)

ANFIBIOS Y PARADOJAS: PERSPECTIVAS SOBRE LA DIVERSIDAD Y LAS POBLACIONES DE ANFIBIOS

Ecología Aplicada, 2016
La perdida de diversidad biologica es un hecho finalmente reconocido y establecido, tanto a nivel de la comunidad cientifica como del publico en general (Santini & Angulo, 2001). Esta perdida se viene dando a todo nivel taxonomico, y mayormente por causales tales como cambios climaticos, disminucion y fragmentacion de habitats y contaminacion del medio 
openaire   +3 more sources

Exceptional Visual‐Opsin Coexpression and Phenotypic Diversity in Outer‐Retinal Photoreceptors of Caenophidian Snakes

Journal of Comparative Neurology, Volume 533, Issue 10, October 2025.
In snakes, profound differences in retinal architecture are observed between diurnal and nocturnal species. Additionally, in the rod‐dominated retinas of nocturnal snakes, coexpression of the cone opsins SWS1 and LWS in individual cones is common, while rhodopsin (RH1) is restricted to typical rods.
Einat Hauzman, Silke Haverkamp, Juliana H. Tashiro, Irene L. Gügel, Natalia F. Torello‐Viera, Thaís B. Guedes, Pavel Němec, Nicholas R. Casewell, Cassandra M. Modahl, Maria Ermelinda Oliveira, Ana Lúcia C. Prudente, Daniel O. Mesquita, Dora Fix Ventura, David J. Gower   +13 more
wiley   +1 more source

Diversity of amphibians in rice fields from northeastern Argentina [PDF]

, 2008
Se registró y analizó la diversidad y riqueza de una comunidad de anfibios que habita campos de arroz en el nordeste de Ar.gentina. Las muestras fueron obtenidas en el período comprendido entre octubre 2001 y junio 2003.
Duré Pitteri, Marta Inés, Kehr, Arturo Ignacio, Marangoni, Federico, Schaefer, Eduardo Federico   +3 more
core  

Using Environmental DNA Sampling for Simultaneous Detection of Hosts and Their Pathogens: A Case Study With the Critically Endangered Frog Genus Atelopus

Animal Conservation, Volume 28, Issue 5, Page 663-674, October 2025.
Environmental DNA is a powerful tool for simultaneous detection of rare species and their pathogens. We confirmed the presence of Atelopus at multiple sampling locations and found that the concentration of the amphibian pathogen Bd in eDNA samples was correlated with stream characteristics and the pathogen load of the amphibian community.
Jamie Voyles, Corinne L. Richards‐Zawacki, Allison Q. Byrne, Angie Estrada, Roberto Ibáñez, Keely M. Rodriguez, Caren S. Goldberg   +6 more
wiley   +1 more source

Estudando os anfíbios: uma proposta didática

Revista Eletrônica Ludus Scientiae, 2019
O presente trabalho teve como objetivo avaliar uma proposta didática para abordar a temática sobre anfíbios em quatro turmas do 2º ano do ensino médio de uma escola pública do Distrito Federal.
Antonia Adriana Mota Arrais
doaj   +1 more source

Dendrobates leucomelas [PDF]

, 2012
Number of Pages: 6Integrative BiologyGeological ...
Doan, Tiffany M., Nowacki, Anthony M., Roberts, Perry A.   +2 more
core   +1 more source

Analysis of morphological attributes as a driver of trade in poison dart frogs

Conservation Biology, Volume 39, Issue 5, October 2025.
Abstract The unsustainable use of wildlife is a threat to biodiversity on a global scale, and the insatiable demand is driven by the attributes of the species, their parts, and derivatives. However, not all species are equally valued; certain attributes command a higher price. One example is the exotic pet trade in amphibians and reptiles.
Puja Jaichand, David L. Roberts, Iain M. Fraser   +2 more
wiley   +1 more source

Anfibios y reptiles (Herpetofauna) en las asociaciones vegetales de la Laguna de Gandoca, Limón, Costa Rica

Tecnología en Marcha, 2018
Los anfibios y reptiles en zonas costeras presenta patrones de distribución y el número de individuos cambiantes, influenciados por factores ambientales físicos y químicos.
Josimar Estrella-Morales, Lilliana Piedra-Castro   +1 more
doaj   +1 more source

Lista anotada y clave para las ranas (género Eleutherodactylus) chocoanas del Valle del Cauca, y apuntes sobre las especies de la Cordillera Occidental adyacente

Caldasia, 1999
Twenty-three species of the genus Eleutherodactylus are reported fram 24 localities in the western lowlands of Valle del Cauca, Colombia, with notes on their identificacion and distributions. Up to 16 species have been taken from a single site. The cloud
Lynch John Douglas
doaj  

Influence of Natural and Artificial Habitats and Microhabitats on Urban Amphibian Diversity and Behavior

Diversity
Species presence in urban landscapes is driven by complex biological and environmental interactions. In this study, we evaluated habitat and microhabitat selection by amphibians in urban environments using correspondence analysis, multiple correspondence
Rocio Pamela Demartín, Romina Ghirardi, Javier Alejandro López   +2 more
doaj   +1 more source