Results 71 to 80 of about 868 (201)

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger   +4 more
wiley   +1 more source

Plant Structure Analysis of Cerrado Fragments by Remote Sensing

open access: yesAnuário do Instituto de Geociências, 2018
With the development of society to preserve the environment becomes essential. Biodiversity is a resource that has strategic value and is related to the territorial heterogeneity. The loss and fragmentation of natural habitats is one of the greatest threats to biodiversity resulting biotic and abiotic changes in the remaining.
César Claudio Cáceres Encina   +8 more
openaire   +3 more sources

Seasonality effect on the allelopathy of cerrado species

open access: yesBrazilian Journal of Biology
The Brazilian cerrado presents strong climate seasonality. During the dry season, plants may be exposed to stressful situations, such as a soil surface water deficit, that stimulate their chemical defenses.
AB Gatti   +5 more
doaj   +1 more source

Flammability of cerrado stricto sensu plant species

open access: yesJournal of Biotechnology and Biodiversity, 2019
Fire can cause damage and benefits to an ecosystem, and this relationship is influenced by two main factors: local weather conditions and fuel material characteristics. One of the main factors influencing the combustion process is the flammability of fuels, and its understanding is essential for the prevention of forest fires.
Silva, Francisca Cassia da Silva   +7 more
openaire   +1 more source

Connecting tradition and technology: The digitization of the ethnobotanical collection at the Rio de Janeiro Botanical Garden

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The digitization of RBetno (JBRJ) represents a step forward for biodiversity conservation in Brazil. Aligned with the Kunming‐Montreal Global Biodiversity Framework (Target 2, 2020–2030), this project documents the use of plants, including traditional knowledge and vernacular names, with a focus on the Atlantic Forest and Amazon.
Viviane S. Fonseca‐Kruel   +6 more
wiley   +1 more source

Análise da variabilidade genética de arnica (Lychnophora ericoides Less. - Asteraceae) usando marcadores RAPDs Genetic variability analysis of arnica (Lychnophora ericoides Less. - Asteraceae) using RAPD markers

open access: yesActa Botânica Brasílica, 2009
O objetivo deste trabalho foi analisar e quantificar a variabilidade genética entre e dentro das populações de arnica por meio de marcadores RAPD. Foram amostradas quatro populações na região geoeconômica do Distrito Federal: Parque Nacional de Brasília (
Luciana Queiroz Melo   +2 more
doaj   +1 more source

Mapping arboretum research: Trends, gaps, and opportunities for biodiversity conservation, society, and climate resilience

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Arboreta bridge people and nature while conserving tree biodiversity, supporting climate resilience, and advancing environmental education. This study maps over a century of available and indexed arboretum research, uncovering trends, knowledge gaps, and opportunities for collaboration.
Catarina Patoilo Teixeira   +1 more
wiley   +1 more source

Levantamento fitossociológico de plantas daninhas na cultura do girassol Phytosociological survey of weeds in sunflower crop

open access: yesPlanta Daninha, 2010
O levantamento fitossociológico da comunidade de plantas daninhas na cultura do girassol foi realizado em duas épocas distintas: no desenvolvimento inicial da cultura (entre 20 e 40 dias após a semeadura) e na pré-colheita do girassol.
F.S Adegas   +5 more
doaj   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

Climate and host plant characteristics effects on lepidopteran caterpillar abundance on Miconia ferruginata DC. and Miconia pohliana Cogn (Melastomataceae)

open access: yesBrazilian Journal of Biology
Folivore cerrado caterpillars are found on their host species in low frequencies, which vary between plants and throughout the year. We analysed the effects of climatic variation and of the characteristics of two host species (Miconia, Melastomataceae ...
S. Scherrer, IR. Diniz, HC. Morais
doaj   +1 more source

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