Results 41 to 50 of about 12,097 (227)

Restoration age, distance from reference ecosystems, and host plant feeding guilds shape the diversity of frugivorous butterflies in ecological restoration areas in the Atlantic Forest

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction The fragmentation of the Atlantic Forest has caused severe biodiversity loss. In Paraná State, more than 96% of the original vegetation, predominantly semideciduous seasonal forest, has been degraded. Ecological restoration is a key strategy to reverse this scenario, aiming to recover environmental conditions equivalent to the ...
Julia Sebben   +4 more
wiley   +1 more source

Germination of aspidosperma discolor a. Dc. Under Different light and Temperature Conditions

open access: yesRevista de Gestão Social e Ambiental
Theoretical framework: Among the genera of the Apocynaceae family found in Brazil, Aspidosperma is among the most important, because of its high medicinal and economic value.
Tarcísio Viana de Lima   +5 more
semanticscholar   +1 more source

Climate‐induced shifts in long‐term tropical tree reproductive phenology: Insights from species dependent on and independent of biotic pollination

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1286-1298, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The dependence on biotic pollination may constrain plant phenological responses because flowering time ultimately defines reproductive success. We proposed a local‐scale study combining long‐term phenology and experimental data to evaluate how a key functional trait—the
Amanda Eburneo Martins   +3 more
wiley   +1 more source

Diameter distribution of an Atlantic Forest fragment at Santa Maria de Jetibá county, ES [PDF]

open access: yes, 2013
O objetivo do trabalho foi analisar a distribuição diamétrica de um fragmento de Floresta Atlântica localizado na Reserva Biológica Sítio Palmares, Espírito Santo.
Conceição, Cláudio de Almeida   +4 more
core   +2 more sources

Total Syntheses of Dihydroindole Aspidosperma Alkaloids: Reductive Interrupted Fischer Indolization Followed by Redox Diversification

open access: yesOrganic Letters, 2020
We report a novel reductive interrupted Fischer indolization process for the concise assembly of the 20-oxoaspidospermidine framework. This rapid complexity generating route paves the way toward various dihydroindole Aspidosperma alkaloids with different
Gábor Martin   +4 more
semanticscholar   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Use of Neurospora crassa as fungus model for systems biology of Moniliophthora perniciosa hyphae proteins: case study of polygalacturonases : S01P13 [PDF]

open access: yes, 2013
Moniliophthora perniciosa, the fungus responsible for the witches' broom disease, brought serious problems to cacao (Theobroma cacao L.) cultivation in the infected areas such as in Southern Bahia, Brazil.
Carvalho, H.A.S.   +2 more
core  

Total Synthesis of Aspidosperma and Strychnos Alkaloids through Indole Dearomatization.

open access: yesChemistry, 2019
Monoterpenoid indole alkaloids are the major class of tryptamine-derived alkaloids found in nature. Together with their structural complexity, this has attracted great interest from synthetic organic chemists.
Jordy M. Saya, Eelco Ruijter, R. Orru
semanticscholar   +1 more source

Multiplicação in vitro de Aspidosperma ramiflorum Muell. Arg. (Apocynaceae) - DOI: 10.4025/actascihealthsci.v29i1.108

open access: yesActa Scientiarum. Health Sciences, 2007
O presente estudo relata um método simples e promissor para multiplicação in vitro de Aspidosperma ramiflorum, uma espécie encontrada no sudeste do Brasil e seriamente ameaçada de extinção, utilizada com propósitos medicinais e como fonte de compostos ...
Heltion Ivan Hubner   +6 more
doaj   +1 more source

Apocynaceae de Vitória da Conquista, Bahia

open access: yesPaubrasilia, 2023
Apresentamos aqui o levantamento das Apocynaceae de Vitória da Conquista, Bahia, Brasil. São reconhecidos 18 gêneros e 26 espécies nativas, incluindo 11 ocorrências novas para o município: Asclepias curassavica,  Aspidosperma polyneuron, Blepharodon ...
Cecília Oliveira de Azevedo   +1 more
doaj   +1 more source

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