Results 31 to 40 of about 257 (145)

Two dioecious Simarouba species with a specialized pollination system and low reproductive efficacy in Central Brazil

open access: yesRodriguésia, 2022
Several possible correlations between dioecy and eco-morphological features have been suggested to infer the conditions that would favor this sexual system. Dioecy has been associated either with specialized or generalized pollination systems.
Indiara Nunes Mesquita Ferreira   +6 more
doaj   +1 more source

New distribution record of Daceton boltoni Azorsa and Sosa-Calvo, 2008 (Insecta: Hymenoptera) in the Brazilian Amazon [PDF]

open access: yesCheck List, 2011
The presence of Daceton boltoni in Cotriguaçu municipality, state of Mato Grosso, southern Amazon is reported. Workers of D. boltoni were collected manually in nests on the branches of three Caxeta trees (Simarouba amara Aubl.
Ricardo Vicente   +2 more
doaj   +3 more sources

Flora of Ceará, Brazil: Simaroubaceae [PDF]

open access: yesRodriguésia
The aim of this study was to carry out a floristic survey and update the distribution of Simaroubaceae species in the state of Ceará, Brazil, as part of the “Flora of Ceará: from Knowledge to Conservation” project.
Ana Brenda Santos Reis   +3 more
doaj   +1 more source

Sawdust and fruit residues of Central Amazonian for Panus strigellus spawn’s production Serragem e resíduos de frutos da Amazônia Central para produção de semente-inóculo de Panus strigellus

open access: yesPesquisa Florestal Brasileira, 2012
<p>The objective of this work was to perform a screening of residues of forest species of the Central Amazon to prepare spawn of the edible mushroom Panus strigellus. Sawdust substrates from 11 forest species were tested.
Ruby Vargas-Isla   +2 more
doaj   +1 more source

PARTICLEBOARD PRODUCED WITH CHROMATED COPPER ARSENATE- AND BORATE-TREATED CAIXETA WOOD: A TECHNICAL FEASIBILITY STUDY

open access: yesEngenharia Agrícola, 2021
Brazilian flora has more than 12 thousand tropical wood species, which can be the raw material for the construction industry. Chromated copper borate (CCB) and chromated copper arsenate (CCA) are wood preservative chemicals, which can generate toxic ...
Tiago H. Almeida   +4 more
doaj   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Simaroubaceae

open access: yesRodriguésia
Resumo Simaroubaceae está representada na Serra dos Carajás por duas espécies pertencentes a Simaba (S. cedron e S. guianensis) e uma a Simarouba (S. amara).
Marcelo Fernando Devecchi   +1 more
doaj   +1 more source

Estudos de propriedades antitermíticas de extratos brutos de madeira e casca de espécies florestais da Amazônia Central, Brasil Studies on the antitermitic properties of wood and bark crude extracts of forest species from Central Amazonian, Brazil

open access: yesActa Amazonica, 2007
No ramo da preservação de madeira, a eficiência de compostos naturais há muito tem sido avaliada, visando encontrar substâncias que não só aumentem a vida útil de madeiras de baixa durabilidade, mas também causem menor dano ao meio ambiente.
Ana Paula Barbosa   +2 more
doaj   +1 more source

Home Range, Diet, and Activity Patterns of Common Marmosets (Callithrix jacchus) in Very Small and Isolated Fragments of the Atlantic Forest of Northeastern Brazil

open access: yesInternational Journal of Ecology, Volume 2015, Issue 1, 2015., 2015
We evaluate the impact of very small and isolated forest fragments on the common marmosets home range, diet, and activity patterns, in the northeastern Atlantic Forest of Brazil. Three groups were studied in three forest fragments, from January to October 2010, totaling 360 hours of observations and 1,080 field‐hours.
Herbert Leonardo Nascimento Pinheiro   +2 more
wiley   +1 more source

Morphophysiological Behavior and Cambial Activity in Seedlings of Two Amazonian Tree Species under Shade

open access: yesJournal of Botany, Volume 2015, Issue 1, 2015., 2015
Variations in light intensity can lead to important anatomical and morphophysiological changes in plants. Aiming to increase knowledge about the Amazonian tree species, this study examines the influence of shade on the cambial activity and development of Parkia gigantocarpa Ducke and Schizolobium parahyba var.
Monyck Jeane dos Santos Lopes   +4 more
wiley   +1 more source

Dimorfismo Sexual de Onchoscelis germari (Boheman) (Coleoptera: Curculionidae)

open access: yesEntomoBrasilis, 2012
Onchoscelis germari (Boheman) é uma espécie de gorgulho associada com Simarouba amara Aubl. (Simaroubaceae), popularmente conhecida como “caixeta”.
Marliton Rocha Barreto   +1 more
doaj   +3 more sources

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