Results 21 to 30 of about 82 (82)

Sociobiodiversidade e conservação na Amazônia: o caso da feira livre de Abaetetuba, Pará, Brasil

open access: yesMundo Amazónico, 2021
O trabalho objetivou identificar os recursos vegetais presentes na feira livre de Abaetetuba-PA, analisando a pressão de uso das espécies amazônicas mais comercializadas fornecendo indicações para prioridades de conservação.
Thyago Gonçalves Miranda   +1 more
doaj   +1 more source

Aspectos etnobotánicos de Cuspón, Perú: Una comunidad campesina que utiliza 57 especies de plantas en sus diversas necesidades

open access: yesScientia Agropecuaria, 2020
Se sabe que las comunidades Andino-Amazónicas a través de la historia han hecho un correcto y eficaz uso de sus recursos florísticos, que al domesticarlas inteligentemente se han constituido en verdaderos aportes del Perú para la humanidad. Por ello esta
Linder Ramírez   +4 more
doaj   +1 more source

Extracts from Amazonian plants have inhibitory activity against tyrosinase: an in vitro evaluation

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2009
Dermatological disorders related to pigmentation result in tenuous hyper or hypopigmentation Cosmetic and pharmaceutical products containing depigmenting substances are used in the treatment of patients who have high pigmentation disorders, such as ...
Daclé Juliani Macrini   +4 more
doaj   +1 more source

Respiração edáfica e nutrientes na Amazônia (Região de Manaus): floresta arenícola, campinarana e campina () [PDF]

open access: yesActa Amazonica, 1978
Resumo Medições da respiração edáfica (método de Walter & Haber) em floresta arenícola, campinarana e campina, na Reserva INPA-SUFRAMA e arredores (02°38'S, 60°01'W).
Fernando Roberto Martins   +1 more
doaj   +1 more source

Uso de plantas medicinais por agentes comunitários de saúde da zona rural e urbana no município de Cruzeiro do Sul, Acre

open access: yesBiodiversidade Brasileira
O uso de plantas medicinais possui raízes antigas e está ganhando interesse crescente na sociedade, tanto em áreas urbanas desenvolvidas quanto em regiões remotas.
Cawana da Silva do Nascimento   +2 more
doaj   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): II. Solute Concentrations and Flux Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Trees can redirect large volumes of rainwater to the base of their stems. This stemflow not only redistributes water but also channels canopy‐derived solutes to the forest floor. Building on research showing canopy geometry and bark properties govern stemflow volumes, we examined how those same traits modulate the biogeochemical side of this flux. Over
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Small understory trees increase growth following sustained drought in the Amazon

open access: yesNew Phytologist, Volume 249, Issue 6, Page 2787-2799, March 2026.
Summary Droughts pose a major threat to the Amazon rainforest, yet the mechanisms enabling trees to maintain growth under prolonged drought remain poorly understood, particularly in the understory layer. We leveraged a 22‐yr Throughfall Exclusion (TFE) in a 1‐ha plot in eastern Amazonia, paired with a Control plot, to test whether small understory ...
Mateus C. Silva   +16 more
wiley   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley   +9 more
wiley   +1 more source

OS REFLEXOS DA CDB NA LEGISLAÇÃO BRASILEIRA COMO INSTRUMENTO DE COMBATE A BIOPIRATARIA NA AMAZÔNIA

open access: yesAmbiente, 2014
O objeto de estudo do presente trabalho consiste numa analise dos mecanismos e resultados da CDB - Convenção sobre Diversidade Biológica - tratado assinado durante a ECO-92, como  instrumento de combate a biopirataria na Amazônia brasileira.
Israel Edu Dantas Andrade   +1 more
doaj   +1 more source

Species functional traits affect regional and local dominance across western Amazonian forests

open access: yesJournal of Ecology, Volume 114, Issue 1, January 2026.
Dominant tree species in western Amazonian forests show distinct functional trait combinations linked to habitat type: conservative traits in stressful habitats and greater plant size in less stressful environments. Local dominants are defined by resource conservation strategies and widespread dominants are defined by resource acquisition strategies. A
Laura Matas‐Granados   +45 more
wiley   +1 more source

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