Results 61 to 70 of about 12,097 (227)
The spatial pattern of regeneration of Aspidosperma polyneuron Müll.Arg. was studied in a remnant sector of the Paranaense forest in the Misiones province, Argentina. All individuals were mapped in a 210 m x 100 m area (2,1 ha).
Martín Martín Pinazo +3 more
doaj +1 more source
Bryophytes from some Caatinga areas in the state of Bahia (Brazil) [PDF]
The caatinga is a deciduous and xerophilous vegetation that covers large areas in Brazil. An irregular rainfall with a marked dry period is a characteristic feature.
Albertos, Belén +2 more
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Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
João C. F. Cardoso +6 more
wiley +1 more source
Estudo das estruturas anatômicas e de algumas propriedades físicas da madeira de 14 espécies ocorrentes em áreas de Caatinga [PDF]
Foram estudadas as madeiras de 14 espécies, ocorrentes em áreas de caatingas do Nordeste. Além das análises das estruturas anatômicas, foi considerado o peso específico e as espécies em questão submetidas ao teste de luz ultravioleta de ondas ...
Alves, José Luiz de Hamburgo +1 more
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Mapping the density of giant trees in the Amazon
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 +1 more source
O objetivo deste estudo foi estimar os parâmetros genéticos para os caracteres silviculturais em Aspidosperma polyneuron Müll.Arg. e Aspidosperma cylindrocarpon Müll.Arg., para fins de conservação ex situ e uso em programas de recuperação ambiental.
Camila Regina Silva Baleroni Recco +7 more
doaj
Conversão de capoeira alta da Amazônia em povoamento de produção madeireira: o método do "recru" e espécies promissoras. [PDF]
bitstream/item/30793/1/CPATU-BP25 ...
CARPANEZZI, A. A., YARED, J. A. G.
core +1 more source
Seed production in relation to fruit size of quebracho blanco (Aspidosperma quebracho-blanco) in the semiarid Chaco forest [PDF]
Para manejar y conservar una población biológica es necesario conocer las etapas de su ciclo de vida. El quebracho blanco es una especie clave en el ecosistema chaqueño y es necesario emprender estudios relacionados con su producción de semillas.
Cardozo, Silvana +2 more
core +1 more source
Chemical evolution of alkaloids inspired the synthesis of a monoterpene alkaloid‐inspired pseudo‐natural product compound collection and revealed a novel de novo pyrimidine biosynthesis inhibitor chemotype. ABSTRACT In pseudo‐natural product (PNP) design, natural product fragments are combined in arrangements not found in nature to afford novel ...
Animesh Biswas +9 more
wiley +1 more source
Chemical and biological evaluation of rejects from the wood industry. [PDF]
Este estudo visa a caracterização química e a avaliação da atividade antimicrobiana de extratos obtidos a partir de rejeitos resultantes do beneficiamento de madeiras nobres comercializadas no Paraná: Peroba-Rosa (Aspidosperma sp.), Roxinho (Peltogyne sp.
GLINSKI, A. +6 more
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