Results 41 to 50 of about 952 (136)

Aiouea affinis (Lauraceae): A New Tree Species From the Brazilian Atlantic Rainforest

Feddes Repertorium, Volume 137, Issue 2, June 2026.
ABSTRACT Aiouea is a Neotropical genus of Lauraceae currently comprising ca. 85 species. Descriptions of new taxa have been frequent in recent years, particularly in Brazil, which currently hosts 35 species, 24 of them being endemic. Based on a review of herbarium material and recent collections, we propose a new species, Aiouea affinis, named for its ...
Marcelo Leandro Brotto, Pedro Luís Rodrigues de Moraes   +1 more
wiley   +1 more source

Occurrence of a Cavity‐Nesting Tropical Swallow Is Associated to Riverbed Lithology

Austral Ecology, Volume 51, Issue 6, June 2026.
ABSTRACT Understanding the factors shaping species distribution is a key challenge in ecology and biogeography. While dispersal limitations, environmental features, and biotic interactions are commonly recognized as key determinants of species abundance and distribution, some species exhibit patchy distributions that remain hard to explain.
Leonardo Esteves Lopes, Fernando Verassani Laureano, Adriano Paglia, Camila Mendes Sá, Fábio Vieira, Gabriele Andreia da Silva, Mariana Neves Moura, Ricardo Camargos de Meireles, Ricardo Solar, Tiago Teixeira Dornas   +9 more
wiley   +1 more source

A soil sensing mechanism to reach carbon flux at a country scale

Soil Science Society of America Journal, Volume 90, Issue 3, May/June 2026.
Abstract Soil is the largest terrestrial carbon reservoir and can be a source or sink of CO2 for the atmosphere, depending on management practices. CO2 emissions from the soil surface (FCO2) are directly related to the biological and physicochemical soil properties. Our objective was to estimate and spatialize the net ecosystem production (NEP) for the
Heidy Soledad Rodríguez‐Albarracín, José A. M. Demattê, Miguel Palacio Pelaez Carvalho Neto, Nícolas Augusto Rosin, Carlos Eduardo Pellegrino Cerri, Carlos Antonio da Silva Junior, José R. de Sousa Lima, Eduardo S. de Souza, Mara Regina Moitinho, Aquiles Enrique Darghan Contreras, Paulo Eduardo Teodoro, Rafael Felippe Ratke, Uemeson José dos Santos, Denizard Oresca   +13 more
wiley   +1 more source

A multi‐network approach to assess how physical templates shape stream fish ecological strategies

Ecological Solutions and Evidence, Volume 7, Issue 2, April–June 2026.
This multi‐network framework identifies a continuous topological gradient of fish ecological strategies—comprising Dispersal Gateways, Integrated Connectors, and Mass Effect Dominated species—within the dendritic river template. The functional role of stream reaches is scale‐sensitive, particularly at headwater extremes where sites operate as critical ...
Mauricio Cetra, Rodrigo da Silva Almeida
wiley   +1 more source

Movimentos sociais: revisitando a participação e a institucionalização Social movements: revisiting the participation and institutionalization

Lua Nova: Revista de Cultura e Política, 2011
Este artigo analisa os efeitos da inserção institucional em arranjos participativos sobre os padrões de ação coletiva de movimentos sociais, no que se refere à formação organizacional, relacional e discursiva dos atores.
Euzeneia Carlos
doaj   +1 more source

Cactaceae na Serra da Mantiqueira, Brasil

Rodriguésia, 2020
Resumo A Serra da Mantiqueira, na Região Sudeste do Brasil, estende-se ao longo das divisas dos estados do Espírito Santo, Minas Gerais, Rio de Janeiro e São Paulo.
Diego Rafael Gonzaga, Luiz Menini Neto, Ariane Luna Peixoto   +2 more
doaj   +1 more source

Sawfishes in Brazil: A Historical Review

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 4, April 2026.
ABSTRACT Sawfishes of the genus Pristis are critically endangered rays with key ecological roles in aquatic ecosystems; however, they remain underrepresented in Brazilian scientific literature. This review presents a historical and bibliometric overview of sawfish literature in Brazil, highlighting temporal trends, geographic focus and thematic ...
Reysane de Alencar Sousa Silva, Vicente Vieira Faria, Patrícia Charvet   +2 more
wiley   +1 more source

Escola, Educação Física e juventude: caminhos para cidadania

Motrivivência, 2015
O estudo investigou as contribuições da educação física e das manifestações do lazer imersas no âmbito cultural, na formação política e cidadã de jovens. Para tanto na parte inicial foi analisado todo o marco legal referente à disciplina educação física
Marcel Ivan Dos Santos
doaj   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

Nordic Journal of Botany, Volume 2026, Issue 4, April 2026.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho, D. Victor Souza e Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

What are the vector species of the Oropouche virus?

Pest Management Science, Volume 82, Issue 4, Page 2785-2793, April 2026.
Here, we review the timeline of Oropouche virus (OROV) detection in various hematophagous Diptera, from 1955 to date, including mosquitoes and midges. All vector competence experiments also are described. The results suggest that Culicoides are the primary vectors.
Constância Flávia Junqueira Ayres, Bruna Lais Sena do Nascimento, Daniele Barbosa de Almeida Medeiros, Joaquim Pinto Nunes Neto   +3 more
wiley   +1 more source