Results 11 to 20 of about 943 (169)

Bait attractiveness changes community metrics in dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae). [PDF]

Ecol Evol, 2023
Assemblages sampled by baited pitfall traps tend to show lower diversity and higher dominance than those sampled by unbaited flight interception traps. Therefore, for ecological questions focused on species relative abundance, baited pitfall traps may lead to inaccurate conclusions regarding assemblage structure.
Bach A, Mateus LAF, Peres CA, Haugaasen T, Louzada J, Hawes JE, Azevedo RA, Lucena EF, Ferreira JVA, Vaz-de-Mello FZ.   +9 more
europepmc   +2 more sources

A step to disentangle diversity patterns in Uruguayan grasslands: Climatic seasonality, novel land‐uses, and landscape context drive diversity of ground flora

Conservation Science and Practice, Volume 5, Issue 9, September 2023., 2023
We analyzed overlaying regional patterns of species diversity in Uruguayan grasslands driven by climate seasonality and land‐use shaping taxonomic richness at local scale. Landscape configuration affects diversity patterns of native ground flora, which is mainly sustained by the “old growth grassland” species pool.
Ina Säumel, Leonardo R. Ramírez, Julia Santolin, Karla Pintado   +3 more
wiley   +1 more source

Molecular systematics, species limits, and diversification of the genus Dendrocolaptes (Aves: Furnariidae): Insights on biotic exchanges between dry and humid forest types in the Neotropics

Journal of Zoological Systematics and Evolutionary Research, Volume 59, Issue 1, Page 277-293, January 2021., 2021
We analyzed sequences from all species and most subspecies of Dendrocolaptes. We recovered the monophyly of Dendrocolaptes and that of most Dendrocolaptes species, except D. picumnus, which was paraphyletic to D. hoffmannsi. A coalescent‐based test supported 15 different evolutionary distinct lineages in Dendrocolaptes, indicating that the genus ...
Antonita Santana, Sofia Marques Silva, Romina Batista, Iracilda Sampaio, Alexandre Aleixo   +4 more
wiley   +1 more source

Ecology and Spatial Distribution of Magnetotactic Bacteria in Araguaia River Floodplain. [PDF]

Environ Microbiol Rep
Magnetotactic bacteria, with their unique intracellular magnetic nanocrystals and magnetic field orientation, are widespread in aquatic environments. However, the discovery of these bacteria in the Araguaia River, a part of two crucial biomes in South America, the Cerrado and the Amazon, marks a significant breakthrough.
Taveira I, Cypriano J, Guimarães J, Vieira LCG, Junior JFG, Enrich-Prast A, Abreu F.   +6 more
europepmc   +2 more sources

The ghosts of forests past and future: deforestation and botanical sampling in the Brazilian Amazon

Ecography, Volume 43, Issue 7, Page 979-989, July 2020., 2020
The remarkable biodiversity of the Brazilian Amazon is poorly documented and threatened by deforestation. When undocumented areas become deforested, in addition to losing the fauna and flora, we lose the opportunity to know which unique species had occupied a habitat.
J. Stropp, B. Umbelino, R. A. Correia, J. V. Campos‐Silva, R. J. Ladle, A. C. M. Malhado   +5 more
wiley   +1 more source

Preoperative intraocular pressure for the control of primary angle closure treated with clear lens extraction

Revista Habanera de Ciencias Médicas, 2021
Introduction: Clear lens extraction is considered in patients older than 50 years with primary angle closure and intraocular pressure greater than or equal to 30 mm Hg or damage due to glaucoma.
Henry Pérez González, Juan Raúl Hernández Silva, Teddy Osmin Tamargo Barbeito, Yanet Garcia Concha   +3 more
doaj  

Sistemas cristalinos bidimensionales

Revista de Investigación de Física, 2014
Desde la obtención experimental del grafeno en el 2004, los sistemas cristalinos bidimensionales han sido objeto de un profundo estudio tanto teórico como experimental. Los métodos de análisis de la estructura electrónica han abarcado desde el tight binding, la ecuación de Dirac para los puntos K y K’ hasta los métodos de funcionales de densidad.
D. I. Arrieta, M. C. Gutiérrez, R. A. Montalvo, P. H. Rivera, Y. E. Huamán   +4 more
openaire   +3 more sources

Contribuição à Ficologia da Amazônia.2. Desmidioflórula dos lagos Cristalino e São Sebastião, Estado do Amazônas: Gêneros Filamentosos () [PDF]

Acta Amazonica, 1980
Resumo O presente trabalho é uma contribuição ao levantamento qualitativo das algas desmídias filamentosas dos lagos Cristalino e São Sebastião, Estado do Amazonas, Brasil.
Dayse Vasques Martins
doaj   +1 more source

Relação entre a biometria ultra-sonográfica em modo B do bulbo ocular e os diâmetros fronto occiptal e bizigomático em Canis familiaris B-Mode Ultrasound biometry of the ocular globe related with fronto-occiptal and bizigomatic diameters in Canis familiaris

Pesquisa Veterinária Brasileira, 2009
Avaliou-se 31 cães saudáveis, sem raça definida, sendo 10 machos e 21 fêmeas, com 8 meses a 7 anos de idade e peso de1,5-28 kg. Inicialmente foram mensurados os diâmetros fronto-occiptal (DFO) e bizigomático (DBZ) do crânio com o auxílio de um paquímetro.
Poliana S. Beserra, Gustavo A. Sales, Expedito J.M. Santana, Stefânia A. Miranda, Adriel B. Brito, Elizabete Nickolak, Sheyla F.S. Domingues   +6 more
doaj   +1 more source

Sistemas cristalinos: nomenclatura e convenções

Terrae Didatica, 2018
Os livros de introdução à cristalografia apresentam os sistemas cristalinos de acordo com o conjunto de elementos de simetria e as orientações axiais dos cristais. Entretanto, o que é fundamental para a definição do sistema cristalino é apenas o conjunto dos elementos de simetria e não as orientações axiais. Alguns dos sistemas cristalinos possuem seus
Daniel Atencio, Andrezza de Almeida Azzi
openaire   +3 more sources