Results 81 to 90 of about 7,691 (260)

Structural, ecological and biogeographical attributes of European vegetation alliances

open access: yesApplied Vegetation Science, Volume 27, Issue 1, January/March 2024.
This new database contains standardized attributes of 12 variables that characterize 1106 phytosociological alliances dominated by vascular plants defined in EuroVegChecklist. These variables include dominant life form, phenological optimum, substrate moisture, substrate reaction, salinity, nutrient status, soil organic matter, vegetation region ...
Zdenka Preislerová   +59 more
wiley   +1 more source

New Proposals on Portuguese Vegetation (II) [PDF]

open access: yes, 2010
As a consequence of the geobotanical studies that have been developed in west and southern areas of the Iberian Peninsula, four new phytosociological associations are proposed, integrated in the perennial mesophytic grasslands of Stipo giganteae ...
Meireles, Catarina   +2 more
core  

Diversidade da comunidade de plantas invasoras em sistemas agroflorestais com café em Turrialba, Costa Rica Diversity of weed community in agroforestry systems with coffee in Turrialba, Costa Rica

open access: yesPesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar a diversidade de plantas invasoras, em sistemas agroflorestais com cafeeiros (Coffea arabica L.) e em cafezal a pleno sol, sob manejo orgânico e convencional.
Marta dos Santos Freire Ricci   +2 more
doaj   +1 more source

Effect of long-term agricultural management systems on occurrence and composition of weed species Efeito do manejo de longo prazo em sistemas agrícolas sobre a ocorrência e composição de espécies daninhas

open access: yesPlanta Daninha, 2011
This study aims to assess the composition of weed communities as a function of distinct selection factors, at neighboring areas submitted to distinct soil management and diverse use for sixteen years.
G Concenço   +5 more
doaj   +1 more source

Ranunculo traunfellneri - Paederotetum luteae: new rock crevices association from the Julian Alps (South - Eastern Calcareous Alps)

open access: yesActa Biologica Slovenica, 2005
Vegetation of rock crevices in the Krn Mts. (the Julian Alps) isbriefly presented. The association Ranunculo traunfellneri-Paederotetum luteaeass. nova was newly described. It was classified into the alliance Cystopteridion fragilis.
Boštjan Surina
doaj   +1 more source

The Vegetation of S'Ena Arrubia lagoon (centre-western Sardinia) [PDF]

open access: yes, 2000
This study describes the vegetation of S'Ena Arrubia lagoon, in the Gulf of Oristano, in the centre-western coast of Sardinia. This lagoon is classified as: Special Protection Zone (S.P.Z.) according to EEC Directive 79/409, community importance site ...
Biondi, Edoardo   +2 more
core  

Occurrence of weed species due to the implementation of a crop succession system and early fertilization [PDF]

open access: yesRevista Ceres
The combination of management practices affects weed populations and biodiversity. The objective was to evaluate the infesting weed community in the implementation of a corn silage (Zea mays L.) /pearl millet (Pennisetum glaucum L)/corn silage succession
Karina Mendes Bertolino   +5 more
doaj   +1 more source

Perfil florístico e estrutural do componente lenhoso em seis áreas de cerradão ao longo do bioma Cerrado Structural and floristic profile of the woody component of six cerradão areas

open access: yesActa Botânica Brasílica, 2012
Inúmeros trabalhos descrevem tanto o aspecto fisionômico e florístico do cerradão, no entanto, não há padronização do critério de inclusão, esforço amostral e tamanho das unidades amostrais o que dificulta as comparações e emergência de perfil estrutural
Alexandro Solórzano   +3 more
doaj   +1 more source

The intrinsic value of HFO features as a biomarker of epileptic activity

open access: yes, 2015
High frequency oscillations (HFOs) are a promising biomarker of epileptic brain tissue and activity. HFOs additionally serve as a prototypical example of challenges in the analysis of discrete events in high-temporal resolution, intracranial EEG data ...
Gliske, Stephen V.   +3 more
core   +1 more source

Estrutura e florística de uma floresta de restinga em Ipitangas, Saquarema, Rio de Janeiro, Brasil

open access: yesRodriguésia
RESUMO A restinga de Ipitangas abriga um dos últimos remanescentes de floresta de restinga livre de inundação entre Marambaia e Cabo Frio. A estrutura desta floresta foi estudada utilizando o método de ponto quadrante central utilizandose dois critérios:
Cyl Farney Catarino de Sá   +1 more
doaj   +1 more source

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