Results 61 to 70 of about 2,049 (218)

Fitossociologia de uma área de cerrado denso na RECOR-IBGE, Brasília-DF Phytosociology of an area of "cerrado denso" at the RECOR-IBGE, Brasília-DF, Brazil

Acta Botânica Brasílica, 2002
Foi amostrada uma área de 10ha de cerrado denso da RECOR-IBGE, Brasília-DF. Nesta foram estabelecidas parcelas experimentais de um projeto para o estudo do efeito do fogo na vegetação do cerrado com um delineamento em blocos casualizados.
Luciana A. Z. Andrade, Jeanine Maria Felfili, Luciano Violatti   +2 more
doaj   +1 more source

Introducing Rveg: An R Package for Phytosociological Data Digitizing

Journal of Vegetation Science, Volume 36, Issue 1, January/February 2025.
Rveg is an open‐source package extension for the R statistical programming language, designed to facilitate the efficient and straightforward digitization of phytosociological relevés (vegetation plot observations) into plain comma‐separated values (CSV) format. This format is easily importable into the R environment for data editing and analysis. Rveg
Přemysl Král, Jan Douda
wiley   +1 more source

Dynamic-Catenal Phytosociology for Evaluating Vegetation

, 2022
The conservation of nature is a problem that has concerned the scientific community for many years. Plants and plant communities play a main role in evaluation and land management studies, owing to their importance as natural and cultural resources. Several studies from the perspective of flora and vegetation have been carried out in the last fifty ...
Río González, Sara del, Alonso Redondo, Raquel, González Pérez, Alejandro, Álvarez Santacoloma, Aitor, Ferreiro Lera, Giovanni Breogán, Penas Merino, Ángel   +5 more
openaire   +5 more sources

International Biological Flora: Trapa natans†

Journal of Ecology, Volume 112, Issue 10, Page 2386-2420, October 2024.
The water caltrop (Trapa natans L.) was once widely distributed in its native range, but is in some part (i.e. Europe) nowadays very rare, highly threatened and of conservation concern for still unknown reasons. It has been introduced beyond its native range (e.g.
Natalie Palm, Jürgen Franzaring, Andreas H. Schweiger   +2 more
wiley   +1 more source

The phytosociology and structure of vegetation near Villa Nora, north-western Transvaal, South Africa

, 1993
The phytosociology and structure of the woody layer of the Mixed and Arid Sweet Bushveld near Villa Nora, north-western Transvaal, is presented. Relevés were compiled in 46 stratified random sample plots.
Schmidt, A.G., Theron, G.K., van Hoven, W.   +2 more
core   +1 more source

Descrição da estrutura de uma Floresta Ombrófila Mista, RS, Brasil, utilizando estimadores não-paramétricos de riqueza e rarefação de amostras Tree community structure and composition in a Mixed Ombrophilous Forest in São Francisco de Paula, Rio Grande do Sul State, Brazil

Acta Botânica Brasílica, 2007
O presente trabalho teve por objetivo descrever a estrutura e composição do estrato arbóreo de uma Floresta Ombrófila Mista na Floresta Nacional de São Francisco de Paula, Rio Grande do Sul utilizando métodos analíticos mistos de fitossociologia ...
Rubia Cristina Sonego, Albano Backes, Alexandre F. Souza   +2 more
doaj   +1 more source

Impact of pollution on weeds phytosociology [PDF]

Egyptian Journal of Botany, 2018
THE ASSOCIATED vegetation to some Assiut province farmlands was investigated between two years (2015 and 2016). The recorded flora (82 species belonging to 25 families) revealed general dominance of the annuals (65% of the total flora). Cluster analysis as a classification method yielded two distinct groups (A and B).
Taha Ramadan, Ahmed Amro, Mahmoud Abd-Almoneim   +2 more
openaire   +1 more source

Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield

Weed Research, Volume 64, Issue 5, Page 384-394, October 2024.
Abstract Agricultural intensification and changing landscape structure led to decreasing numbers of arable flora and fauna during the last decades. To counteract these declines, arable plant diversity needs to be restored. It is important to promote regional plant communities including endangered species to ensure adaption to agricultural landscapes ...
Matthias Schumacher, Rosa Witty, Roland Gerhards   +2 more
wiley   +1 more source

XI International Meeting of Phytosociology - Natural and semi-natural habitats of the Natura 2000 Network: Improving knowledge to support conservation measures [PDF]

, 2019
Livro de resumos do XI International Meeting of Phytosociology - Natural and semi-natural habitats of the Natura 2000 Network, que decorreu em Faro em Setembro de ...
Meireles, Catarina, Quinto-Canas, Ricardo, Machado, Mariana, Raposo, Mauro, Cano-Carmona, Eusébio, Pinto-Gomes, Carlos   +5 more
core  

Forest habitat diversity in the Cantabrian Mixed Forests ecoregion (NW Iberian Peninsula), a climatic refugium in western Europe

Applied Vegetation Science, Volume 27, Issue 3, July/September 2024.
The Cantabrian Mixed Forests ecoregion is a meeting‐point for deciduous, evergreen and coniferous forest diversity in southern Europe. Using a three‐step classification (1 — EUNIS expert system; 2 — modified TWINSPAN; 3 — semi‐supervised k‐means classification), we identified 24 ecological forest types: 12 broadleaved deciduous, seven broadleaved ...
Víctor González‐García, Eduardo Fernández‐Pascual, Xavier Font, Borja Jiménez‐Alfaro   +3 more
wiley   +1 more source