Results 41 to 50 of about 130 (88)

Métodos de amostragem e avaliação utilizados em estudos fenológicos de florestas tropicais Methods applied for sampling and estimate tropical forest phenology

open access: yesActa Botânica Brasílica, 2004
Nos últimos 30 anos não foram levadas em consideração questões metodológicas importantes relativas ao estudo da fenologia de plantas. O uso de vários métodos na amostragem e avaliação dos dados fenológicos tem levado a uma grande dificuldade na ...
Fernanda F. d'Eça-Neves   +1 more
doaj   +1 more source

Isolated Trees in a Fragmented Tropical Landscape: A View Through the Soil Seed Bank

open access: yesBiotropica, Volume 57, Issue 5, September 2025.
Here, we investigated patterns of plant species diversity, abundance, and composition in the soil seed banks of cattle pastures, under fleshy‐fruited, and nonfleshy‐fruited trees within pastures, and in secondary forest patches at ten study sites in Brazil.
Samantha A. Allbee   +3 more
wiley   +1 more source

Crescimento e teor de metais de mudas de espécies arbóreas cultivadas em solo contaminado com metais pesados Growth and metal concentration of seedlings of woody species in a heavy metal contaminated soil

open access: yesPesquisa Agropecuária Brasileira, 2000
O objetivo do trabalho foi avaliar o teor de metais pesados e o crescimento de mudas de 20 espécies arbóreas tropicais em solo com elevado grau de contaminação com metais pesados.
Teresa Cristina Lara Lanza de Sá e Melo Marques   +2 more
doaj   +1 more source

Tree traits are a stronger predictor of bee traits and species richness than taxonomic diversity

open access: yesFunctional Ecology, Volume 39, Issue 1, Page 281-292, January 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Functional traits help to understand biological diversity and the mechanism by which ecological communities are structured and how they respond to the environment. For example, the high tree species diversity within tropical forests can be grouped into a few functional ...
Adrian González‐Chaves   +5 more
wiley   +1 more source

Impacts of higher daytime temperatures on viable pollen and fruit production in common Cerrado tree Byrsonima pachyphylla (Malpighiaceae)

open access: yesBiotropica, Volume 56, Issue 5, September 2024.
Temperatures in the Brazilian Cerrado—an important, complex, and biodiverse savannah ecosystem–are increasing, potentially impacting many aspects of plant development and function, including sexual reproduction, which is thought to be particularly sensitive to temperature stress.
Georgina A. Werkmeister   +11 more
wiley   +1 more source

Interference of Pteridium arachnoideum (Kaulf.) Maxon. (Dennstaedtiaceae) on the establishment of rainforest trees

open access: yesBrazilian Journal of Biology
In order to identify the effect of P. arachnoideum, we studied 11 native tree species commonly used in reforestation projects. Bioassays were conducted in laboratory to evaluate the effect of bracken leachate on the germination and morphology of ...
DM. Silva Matos, TA. Belinato
doaj   +1 more source

Ecosystem type affects how Amazonian tree species invest in stem and twig wood

open access: yesFunctional Ecology, Volume 38, Issue 7, Page 1486-1496, July 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Wood density (WD) is a key functional trait for its importance in tree performance and in biomass calculations of forests. Yet, the variation of WD among different woody tree parts, how this varies across ecosystems, and how this influences estimates of forest carbon ...
Gisele Biem Mori   +7 more
wiley   +1 more source

Dieta de morcegos frugívoros em remanescente de Cerrado em Bandeirantes, Mato Grosso do Sul

open access: yesBiotemas, 2014
http://dx.doi.org/10.5007/2175-7925.2014v27n2p129 A frugivoria é difundida entre mamíferos e aves, que consomem mais de 75% das espécies de frutos de árvores tropicais.
Mariana Veiga Martins   +2 more
doaj   +1 more source

Influência da distância geográfica na riqueza e composição de espécies arbóreas em uma Floresta Ombrófila Densa na Amazônia Oriental

open access: yesRodriguésia
Duas teorias em ecologia explicam a distribuição de espécies em florestas tropicais: a Teoria Neutra e a Teoria do Nicho. Na primeira a distribuição de espécies está relacionada a processos como dispersão, enquanto a segunda prediz que é devido às ...
Darley C. Leal Matos   +2 more
doaj   +1 more source

Permeability - impermeability: canopy trees as biodiversity filters Permeabilidade - impermeabilidade: árvores do dossel como filtros da biodiversidade

open access: yesScientia Agricola, 2007
Each tropical and subtropical forest canopy species may create specific microsite conditions below its crown, which works as a filter for those species that attempt to regenerate below it.
Sergius Gandolfi   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy