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Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change [PDF]

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez   +32 more
wiley   +2 more sources

Mapping the density of giant trees in the Amazon [PDF]

open access: yesNew Phytologist, Volume 249, Issue 1, Page 152-168, January 2026.
Summary Tall trees (height ≥ 60 m) are keystone elements of tropical forests, strongly influencing biodiversity, carbon storage, and ecosystem resilience. Yet, their density and spatial distribution remain poorly quantified, especially in remote Amazonian regions, limiting our understanding of their ecological roles and contribution to forest–climate ...
Robson Borges de Lima   +20 more
wiley   +2 more sources

Biologia da polinização de espécie arbórea de Cupania: dicogamia sincronizada, fenótipo generalista e predominância de abelhas sem ferrão

open access: yesBoletín de la Sociedad Argentina de Botánica, 2022
Introdução e objetivos: Pouco sabemos acerca da biologia da polinização de espécies arbóreas tropicais com sistema de polinização por diversos insetos (DI).
Alexandre Tomaz da Fonseca   +1 more
doaj   +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

Exportação de flores tropicais no estado de Pernambuco: análise da inserção dos canais de distribuição

open access: yes, 2007
This article aims to analyze the main distribution channels in the productive chains of tropical flowers in Pernambuco state, focusing on the factors that influence its insertion into the European market. The European Union is the main destination for the tropical flowers exported by Pernambuco, responding for 99, 12 % of the total sales to foreign ...
Pedrosa Filho, Manoel Xavier   +1 more
openaire   +4 more sources

Produtividade e qualidade pós-colheita de Helicônia Golden Torch submetida a fontes e doses de silício

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2014
A adubação com silício pode aumentar a produtividade pelo aumento da resistência ao acamamento, ao estresse hídrico e a desidratação após a colheita. O objetivo deste trabalho foi avaliar a produtividade e a qualidade pós-colheita de Helicônia Golden ...
Abel W. de Albuquerque   +2 more
doaj   +1 more source

Microhabitat Variation in Feeding Places Shape Ant‐Hemiptera Interactions Within Cocoa Agroecosystems

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
Ant‐hemipteran mutualistic networks in cocoa crops maintain a stable structural organization across different microhabitats (flowers, leaves, and fruits) and management types. This stability is not intrinsic to the network, but rather an emergent result of the behavior of a few generalist ant species acting as structural buffers.
Elmo B. A. Koch   +5 more
wiley   +1 more source

Qualidade de inflorescências de Heliconia stricta e Heliconia bihai produzidas sob adubação química e orgânica

open access: yesOrnamental Horticulture, 2011
O objetivo deste trabalho foi avaliar a qualidade das inflorescências de Heliconia stricta e Heliconia bihai cultivadas a pleno sol, com irrigação, sob três tratamentos: adubação química, orgânica e sem adubação.
Andrezza da Silva Machado Neto   +3 more
doaj   +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

Fungos micorrízicos arbusculares e vermicomposto na aclimatação de Alpinia purpurata (Viell.) Schum e Zingiber spectabile Griff. (Zingiberaceae) Arbuscular mycorrhizal fungi and the use of vermicompost on the acclimatization of Alpinia purpurata (Viell.) Schum and Zingiber spectabile Griff. (Zingiberaceae)

open access: yesActa Botânica Brasílica, 2006
Visando selecionar fungos micorrízicos arbusculares (FMA) e substratos para produção de mudas micropropagadas de alpinia (Alpinia purpurata) e sorvetão (Zingiber spectabile), conhecidas espécies ornamentais tropicais, foram inoculadas mudas com 1.500 ...
Maryluce Albuquerque da Silva   +4 more
doaj   +1 more source

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