Results 41 to 50 of about 81,659 (162)

Variáveis de impacto no sequenciamento de lavra

Research, Society and Development, 2022
O planejamento de mina é desenvolvido considerando variáveis econômicas, teores, litologia, posição espacial. Estas variáveis são utilizadas para determinar o limite final de cava e sequenciamento das operações. Normalmente são amostradas exaustivamente somente as variáveis relacionadas ao teor.
Barbara Isabela Silva Campos, Felipe Ribeiro Souza, Hernani Mota de Lima   +2 more
openaire   +1 more source

Phenological description for the initial development stage of five Brazilian native forest species according to BBCH scale

Annals of Applied Biology, EarlyView.
Morphology of the two main growth stages—germination and initial development of the forest species Ceiba speciosa (co, cotyledon; eo, eophyll; hp, hypocotyl; me, metaphyll; pk, prickles; pr, primary root; se, seed; sr, secondary root). Abstract A specific phenological scale designated for each forest species facilitates the standardization of different
Mábele de Cássia Ferreira, Fabrina Bolzan Martins, Haroldo Felipe da Costa   +2 more
wiley   +1 more source

Effects of soil physical properties on dung beetle assemblages in pasture landscapes of the Brazilian Cerrado

Agricultural and Forest Entomology, EarlyView.
We assessed the effect of the type of soil texture (loamy sand and sandy loam) and its physical properties on dung beetle species assemblages in a pastureland region of the Brazilian Cerrado. We found a reduction in the total and paracoprid beetle abundances in loamy sand soil. Furthermore, the increase of soil compaction negatively affected the entire
César Murilo de Albuquerque Correa, Renato Portela Salomão, Anderson Puker, Fernando Z. Vaz‐de‐Mello, Alfredo Raúl Abot   +4 more
wiley   +1 more source

Study of the relationship pedo-geomorphological in the soil distribution with argillic horizons in the landscape of Lavras (MG), Brazil [PDF]

, 2008
O entendimento das relações entre geologia, geomorfologia e pedologia auxilia nas atividades de classificação dos solos e na avaliação da distribuição pedológica de uma área. Este trabalho foi motivado pela escassez de estudos dessa natureza na região de
Alves, Helena Maria Ramos, Andrade, Hélcio, Lacerda, Marilusa Pinto Coelho, Queménéur, Jean Joel Gabriel, Vieira, Tatiana Grossi Chiquiloff   +4 more
core   +1 more source

Análise do comércio de bananas em Lavras: Minas Gerais Analysis of banana trade in Lavras: Minas Gerais

Ciência e Agrotecnologia, 2009
A participação de Lavras na oferta de banana no mercado local é muito pequena, considerando-se que o Brasil é o segundo país maior produtor com 6,6 milhões de toneladas e Minas Gerais é o quarto entre os Estados produtores dessa fruta. Visando a quantificar a participação de Lavras e região na oferta de banana no mercado local, realizou-se esse ...
Pereira, Lair Victor, Andrade, José Clélio de, Fráguas, José Carlos, Abrahão, Enilson, Alvarenga, Ângelo Albérico   +4 more
openaire   +2 more sources

Seasonality as a structuring factor of the dung beetle community in burned neotropical savannas

Ecological Entomology, EarlyView.
We tested the effects of fire, vegetation cover and seasonality on dung beetle communities, focusing on species richness, composition and co‐occurrence patterns in savannas. Fire did not affect species richness. However, seasonality was the dominant factor influencing species composition, followed by fire and vegetation cover.
Nayara Letícia Reis, Kênia A. Santos, Luiz Cortez, Julio Louzada   +3 more
wiley   +1 more source

The architecture of predator-prey and the relationship between complexity and stability [PDF]

, 2010
Theoretical studies predict that the stability of an ecosystem is negatively correlated with its complexity, measured by the number of interacting species. On the other hand, empirical evidence indicates that food webs are highly interconnected.
Chrystian Paixao, Iraziet Charret, Jose Alberto Nogales Vera, Karen Luz Burgoa Rosso, Lucas Faria   +4 more
core   +1 more source

Dose‐Dependent Effect of Plant Volatiles on the Oviposition Preference of the Corn Leafhopper Dalbulus maidis

Journal of Applied Entomology, EarlyView.
ABSTRACT Maize (Zea mays L.) is a major annual crop cultivated worldwide. In the Americas, the corn leafhopper Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae) is a key pest of this crop, causing direct damage to plants through phloem feeding and indirect damage by transmitting phytopathogens.
Tatiane Cristina Barbosa Cândido, Enggel Beatriz Silva Carmo, Vinícius Xavier Nogueira dos Reis, M. Fernanda G. V. Peñaflor   +3 more
wiley   +1 more source

A species-specific satellite DNA family in the genome of the coffee root-knot nematode Meloidogyne exigua : Application to molecular diagnostics of the parasite [PDF]

, 2002
A new Bg/II satellite DNA has been isolated, cloned and sequenced from the coffee root-knot nematode, Meloidogyne exigua (Nematoda: Tylenchida). It is represented as tandemly repeated sequences with a monomeric unit of 277 bp. The monomers are present at
Bongiovanni, Michel, Carneiro, Regina Maria Dechechi Gomes, Castagnone Sereno, Philippe, Randig, Onivaldo, Sarah, Jean-Louis   +4 more
core   +2 more sources

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source