Results 41 to 50 of about 2,825 (200)

Larva de Rhynchophorus palmarum L. (Coleoptera: Curculionidae): Efecto de la dieta en la síntesis de ácidos grasos esenciales

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2021
Los insectos son fuente importante de proteínas, vitaminas, aminoácidos, minerales y lípidos. En ese contexto el presente estudio, evaluó el perfil de ácidos grasos esenciales del aceite de larva de Rhynchophorus palmarum (Coleoptera: Curculionidae ...
Julio Cesar Maceda Santivañez   +1 more
doaj   +1 more source

Oral transmission of Chagas disease from a One Health approach: A systematic review

open access: yesTropical Medicine &International Health, Volume 28, Issue 9, Page 689-698, September 2023., 2023
Abstract Objective To analyse acute Chagas disease (CD) outbreaks through a qualitative systematic review and discuss the determinants for its prevention and control. Methods Review of studies in which clinical cases of oral transmission were confirmed by parasitological and/or serological tests that included an epidemiological investigation of sources
Alejandra López‐García   +1 more
wiley   +1 more source

Radiocarbon estimates of age and growth for a dominant Amazon palm species

open access: yesBiotropica, Volume 55, Issue 1, Page 7-12, January 2023., 2023
We used destructive sampling to assess 14C‐calibrated age and growth of five individuals of Oenocarpus bataua Mart. (ARECACEAE) from 7.35‐21.6 m of total height. The largest individual was 59‐years old. Age decreased from the collar to the top of the aboveground stem and was positively correlated with number of leaf‐scars and height.
Daniel Magnabosco Marra   +4 more
wiley   +1 more source

Evaluation of a compounding phospholipid base for the percutaneous absorption of high molecular weight drugs using the Franz finite dose model.

open access: yesSkin Res Technol
Abstract Background Permeation‐enhancing compounding bases are aimed to facilitate the penetration of the active pharmaceutical ingredients (APIs) across the skin barrier. Objectives The purpose of this study was to evaluate the percutaneous absorption of radiolabeled human insulin (14C‐isototpe) when incorporated in a proprietary phospholipid base ...
Banov D   +4 more
europepmc   +2 more sources

Pollination ecology in the tropical Andes: moving towards a cross-scale approach. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Plant–pollinator interactions structure ecological communities and represent a key component of ecosystem functioning. Pollination networks are expected to be more diverse and specialised in the tropics, but pollination ecology in these regions has been understudied in comparison to other areas.
Rueda-Uribe C   +25 more
europepmc   +2 more sources

The fate and transit time of carbon in a tropical forest

open access: yesJournal of Ecology, Volume 109, Issue 8, Page 2845-2855, August 2021., 2021
The transit time distribution quantifies the time it takes for photosynthates to appear in the respiration flux. For a tropical forest in Colombia, it predicts that 50% of fixed carbon is respired in <0.5 years, and 95% in <69 years. Editor's Choice Abstract Tropical forests fix large quantities of carbon from the atmosphere every year; however, the ...
Carlos A. Sierra   +2 more
wiley   +1 more source

Useful palms (Arecaceae) near Iquitos, Peruvian Amazon

open access: yesRevista Peruana de Biología, 2014
This paper describes the uses of 64 species of palms in 28 villages in Departamento de Loreto, Peru. There, the palms are of great use as food (Bactris gasipaes, Mauritia flexuosa, Euterpe precatoria, Oenocarpus bataua), for fiber production ...
Henrik Balslev   +4 more
doaj   +1 more source

Defaunation Increases Clustering and Fine-Scale Spatial Genetic Structure in a Small-Seeded Palm Despite Remaining Small-Bodied Frugivores. [PDF]

open access: yesMol Ecol
ABSTRACT Anthropogenic pressures such as hunting are increasingly driving the localised functional extinctions of large‐ and medium‐sized wildlife in tropical forests, a phenomenon broadly termed ‘defaunation’. Concurrently in these areas, smaller‐bodied species benefit from factors such as competitive release and increase in numbers.
Lamperty T   +5 more
europepmc   +2 more sources

Pleistocene climatic fluctuations promoted alternative evolutionary histories in Phytelephas aequatorialis, an endemic palm from western Ecuador

open access: yesJournal of Biogeography, Volume 48, Issue 5, Page 1023-1037, May 2021., 2021
Abstract Aim Pleistocene (2.58 Ma–11.7 ka) climatic fluctuations have shaped intraspecific genetic patterns worldwide; however, their impact on species in many regions remains unknown. In order to determine the impact of Pleistocene climatic fluctuations on the tropical rain forests of western Ecuador, we explored the evolutionary history of the ...
Sebastián Escobar   +5 more
wiley   +1 more source

Characterization of raw and thermochemically-treated mesocarp fibers of Oenocarpus bataua, an Amazon palm

open access: yesCERNE, 2023
Background: Patauá (Oenocarpus bataua Mart.) is a palm tree belonging to the botanical family Arecaceae that occurs throughout the Amazon. Like açaí, an edible pulp is extracted from its fruits, remaining a fiber-rich waste. Revealing the potential of such raw or thermochemically modified fibers for producing bioproducts is a novelty in the literature.
Orimax Monteiro Cruz   +7 more
openaire   +3 more sources

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