Results 41 to 50 of about 3,070 (116)

Caracterização morfológica de partículas na atmosfera de São José dos Campos –SP, utilizando microscopia eletrônica de varredura (MEV) [PDF]

Geochimica Brasiliensis, 2012
O estudo trata da caracterização morfológica do aerossol Black Carbon (BC) co-letado durante os meses de março a novembro de 2008 num ponto de monitoramento em São José dos Campos-SP.
Franklin Velarde Rosasco, Rauda Lúcia Mariani, Maria Paulete Pereira Martins, Ênio Bueno Pereira   +3 more
doaj  

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

LA DISTRIBUCIÓN GEOGRÁFICA DEL LÉXICO EN ESPAÑOL ACTUAL [PDF]

Lingüística
El objetivo fundamental de este trabajo consiste en presentar una visión general de la distribución del léxico en los diferentes países hispánicos.
Guillermo Rojo
doaj   +1 more source

A new method to control the invasive sun corals (Tubastraea spp.): Underwater compressed‐air blasting

Ecological Solutions and Evidence, Volume 7, Issue 2, April–June 2026.
Underwater compressed‐air blasting is a novel method developed to control invasive sun corals (Tubastraea spp.). The technique removes coral soft tissue without fragmenting colonies, reducing the risk of regeneration and accidental spread. This approach offers a safer and practical tool for managing invasive corals in natural reefs and biofouling ...
Gustavo H. Piazzaroli, Fábio H. C. Sanches, Sérgio A. Coelho‐Souza, María Soledad López, Fabio S. Motta, Guilherme H. Pereira‐Filho   +5 more
wiley   +1 more source

Geostatistics applied to the study of the spatial distribution of Tibraca limbativentris in flooded rice fields

Ciência Rural, 2015
Tibraca limbativentris (rice stem bug) is an insect highly injurious to the rice crop in Brazil. The aim of this research was to define the spatial distribution of the T.
Juliano de Bastos Pazini, Robson Antonio Botta, Enio Júnior Seidel, Fernando Felisberto da Silva, José Francisco da Silva Martins, José Alexandre Freitas Barrigossi, Rodrigo Rübenich   +6 more
doaj   +1 more source

The effects of competitive intelligence on sales efficiency: an essay on manager tenure and the dispersion of competitive intelligence

Revista Eletrônica de Ciência Administrativa, 2021
This paper suggests a theoretical model, in which the manager's tenure and the dispersion of competitive intelligence have effects on sales efficiency.
Ana Carolina Molina, Valter Afonso Vieira   +1 more
doaj   +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

Unravelling the drivers of island species richness in tropical savannas

Journal of Ecology, Volume 114, Issue 4, April 2026.
Murundu island area explains a substantial proportion of the variation in tree and herb richness, consistent with Island Biogeography Theory. On average, a 10% increase in island size corresponds to increases of seven tree species and 7.8 herb species.
Henrique A. Mews, Denis S. Nogueira, Ben Hur Marimon‐Junior, Reginaldo Constantino, Oliver L. Phillips, Beatriz S. Marimon   +5 more
wiley   +1 more source

Variabilidade genética de acessos de aguapé coletados no Estado de São Paulo Genetic variability of waterhyacinth accesses collected in São Paulo State reservoirs

Planta Daninha, 2002
No presente trabalho foram coletados acessos de Eichhornia crassipes (aguapé) nos reservatórios das hidrelétricas de Barra Bonita, Bariri, Três Irmãos, Ilha Solteira, Salto Grande, Promissão, Ibitinga, Nova Avanhandava, Mogi-Guaçu, Euclides da Cunha ...
L.R. Cardoso, D. Martins, E.E. Kuramae, R.H. Tanaka, E.S. Mori   +4 more
doaj   +1 more source

Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change

Global Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez, Ben Hur Marimon‐Junior, Beatriz Schwantes Marimon, Wesley Jonatar Alves da Cruz, Norberto Gomes Ribeiro Júnior, Raiane Gonçalves Béu, Polyanna da Conceição Bispo, Aldair de Souza Medeiros, Glécio Machado Siqueira, Marcelo Leandro Bueno, Fabiana de Gois Aquino, Frederico Augusto Guimarães Guilherme, José Roberto Rodrigues Pinto, Henrique Augusto Mews, Bruno Machado Teles Walter, Sabrina do Couto de Miranda, Ricardo Flores Haidar, Eddie Lenza de Oliveira, Renata Dias Françoso Brandão, Eraldo Aparecido Trondoli Matricardi, Cássia Beatriz Rodrigues Munhoz, Edson de Souza Lima, Maria Antônia Carniello, Mercedes Maria da Cunha Bustamante, Paulo Sérgio Morandi, Edmar Almeida de Oliveira, Zenésio Finger, Eder Carvalho das Neves, Fernando Elias, Immaculada Oliveras Menor, Simone Matias de Almeida Reis, Oliver Phillips, Ted R. Feldpausch   +32 more
wiley   +1 more source