Results 101 to 110 of about 19,559 (292)

ANÁLISE DA DIVERSIDADE E SIMILARIDADE DE FRAGMENTOS FLORESTAIS NATIVOS NA BACIA DO RIO SÃO FRANCISCO, EM MINAS GERAIS

open access: yesCiência Florestal, 2006
The objectives of this study were: to compare and to apply indices that quantify diversity, equability and similarity in the studied area; to identify possible diversity gradients, and to apply multivariate analysis to create dendrograms of similarity.
Lucas Rezende Gomide   +2 more
doaj  

Diversidade de Leguminosae nas caatingas de Tucano, Bahia: implicações para a fitogeografia do semi-árido do Nordeste do Brasil

open access: yesRodriguésia
RESUMO A família Leguminosae é a mais diversa nas caatingas em termos de número de espécies, as quais apresentam diferentes padrões de distribuição geográfica que têm permitido inferir relações florísticas entre diferentes áreas.
Domingos Benício Oliveira Silva Cardoso   +1 more
doaj   +1 more source

The use of diatom records to establish reference conditions for UK lakes subject to eutrophication [PDF]

open access: yes, 2011
A knowledge of pre-disturbance conditions is important for setting realistic restoration targets for lakes. For European waters this is now a requirement of the European Council Water Framework Directive where ecological status must be assessed based on ...
Bennion, H, Simpson, GL
core  

Tradition, Dynamics and Sustainability of Plant Species Composition and Management in Homegardens on Organic and Non-Organic Small Scale Farms in Alpine Eastern Tyrol, Austria [PDF]

open access: yes, 2003
In Eastern Tyrol (Austria), homegardens are an integral part of the farming system. The aim of this paper is to present evidence for the development of gardening in the study area and to identify differences/similarities between gardens at organic and ...
Vogl, C. R., Vogl-Lukasser, B.
core   +1 more source

Synergistic efforts in specimen digitisation, curation and cataloguing of Brazil's megadiverse flora and funga

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The advancement of digital technologies has brought a rapid global information exchange, impacting all areas of our lives. This also applies to science. Knowledge, conservation and scientific innovation on global biodiversity are being strengthened and disseminated at unprecedented scales.
Ana Flávia Alves Versiane   +9 more
wiley   +1 more source

Banco de Sementes em Mina de Bauxita Restaurada no Sudeste do Brasil

open access: yesFloresta e Ambiente
RESUMO O objetivo deste trabalho foi caracterizar o banco de sementes do solo em mina de bauxita restaurada dez anos após implantação do projeto de restauração. O estudo foi realizado em uma área onde ocorreu exploração de bauxita e posterior restauração
Aurino Miranda Neto   +4 more
doaj   +1 more source

Flora of Tocomar and Campo Amarillo (Salta, Argentina).

open access: yesBoletín de la Sociedad Argentina de Botánica, 2015
Flora of Tocomar and Campo Amarillo (Salta, Argentina). In Salta, the puna vegetation studies are specific, sporadic, and often lack a complete picture of the floristic diversity.
Mariela Fabbroni
doaj   +1 more source

How digitisation of herbaria reveals the botanical legacy of the First World War

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Digitisation of herbarium collections is bringing greater understanding to bear on the complexity of narratives relating to the First World War and its aftermath – scientific and societal. Plant collecting during the First World War was more widespread than previously understood, contributed to the psychological well‐being of those involved and ...
Christopher Kreuzer, James A. Wearn
wiley   +1 more source

Evolution of coal-forming plants and floristic restorability of upper paleozoic coals

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2015
The floristic similarity of coal-bearing deposits of Donetsk, Karaganda, Pechora and Kuznetsk basins is caused by evolution of coal-forming plants of upper Paleozoic and is reflected in the petrographic composition of coals.
V. P. Ivanov
doaj   +1 more source

Leveraging machine learning and citizen science data to describe flowering phenology across South Africa

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Recent shifts in flowering times are an index of, and a response to, human driven climate change. However, most information on these flowering changes is heavily skewed to the northern hemisphere. This imbalance limits our understanding of how climate change is affecting ecosystems, including the mismatches of flowering times between species, increased
Ross D. Stewart   +3 more
wiley   +1 more source

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