Results 61 to 70 of about 46,881 (279)

Sensitivity of the Amazon biome to high resolution climate change projections [PDF]

Acta Amazonica, 2016
: Despite the reduction in deforestation rate in recent years, the impact of global warming by itself can cause changes in vegetation cover. The objective of this work was to investigate the possible changes on the major Brazilian biome, the Amazon ...
Andre de Arruda LYRA, Sin Chan CHOU, Gilvan de Oliveira SAMPAIO   +2 more
doaj   +1 more source

On Avatar: digital commerce as activist pedagogy? [PDF]

, 2013
Contemporary media allow digital environments to function as transnational classrooms, a multidimensional public sphere accessible to people with Internet connection.
Tzanelli, R
core   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

PLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo, Surangi W. Punyasena, Daurys de Alba, Roxana Alveo, Angelica Arcila, Jorge Bermudez, Jonatan Bustos, Dayenari Caballero‐Rodriguez, Karen Cardenas, David Caro, Francy Carvajal, Ivonne Marcela Castañeda, Shara Chaves, Carlos D'Apolito, Andres Diaz‐Jaramillo, Laura Diaz, Luisa Gomez, Mauricio León‐Carreño, Paula Lopera, Maria Alejandra Lopez, Priscila Lopez, Luke Mander, Jhonatan Martínez Murcia, Carlos Moreno, Enrique Moreno, Enrique Neyra, Brenda Orosco, Jhon Ortiz, Natalia Ossa, Natalia Ovalle, Carolina Ovalle, Angelo Plata, Ingrid Romero, Bruno Scudeiro, Silane A. F. da Silva Caminha, Axel Tejada‐Fajardo, Vinicius Do Valle, Thiago Wood   +37 more
wiley   +1 more source

Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]

, 2019
The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core   +2 more sources

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger, Raquel C. Pizzardo, Bruno Vilela, Thuane Bochorny, Juliana Gastaldello Rando   +4 more
wiley   +1 more source

Unexpected seasonality in quantity and composition of Amazon rainforest air reactivity

Nature Communications, 2016
The degree to which biogenic volatile organic compounds released by the Amazon canopy impact oxidation capacity remains uncertain. Here, the authors evaluate the vertical distribution of total hydroxyl radical reactivity and individual trace gases in the
A. C. Nölscher, A. M. Yañez-Serrano, S. Wolff, A. Carioca de Araujo, J. V. Lavrič, J. Kesselmeier, J. Williams   +6 more
doaj   +1 more source

XGBOOST and Multitemporal DETER Data for Deforestation Forecasting [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This paper reports research that is part of a project to combat deforestation in the Brazilian Amazon rainforest by developing an online system designed to forecast deforestation risk over the short term, spanning 2 to 4 weeks.
L. E. C. La Rosa, L. E. C. La Rosa, F. Ferrari, F. G. S. Bezerra, R. A. de Souza, R. V. Maretto, A. P. D. de Aguiar, A. P. D. de Aguiar, L. Vinhas, P. N. Happ, R. Q. Feitosa   +10 more
doaj   +1 more source

Uncovering the genomic potential of the Amazon River microbiome to degrade rainforest organic matter

Microbiome, 2020
Background The Amazon River is one of the largest in the world and receives huge amounts of terrestrial organic matter (TeOM) from the surrounding rainforest. Despite this TeOM is typically recalcitrant (i.e.
Célio Dias Santos-Júnior, Hugo Sarmento, Fernando Pellon de Miranda, Flávio Henrique-Silva, Ramiro Logares   +4 more
doaj   +1 more source

Screening for Human T-Cell Lymphotropic Virus (HTLV) in Pregnant Women in the Peruvian Amazon and Systematic Review with Meta-Analysis of HTLV Infection in Peru

Pathogens, 2021
Background. Human T-cell lymphotropic virus type 1 (HTLV-1) is responsible for tropical spastic paraparesis and HTLV-1-associated leukemia/lymphoma. The infection is endemic in some areas of Peru, but its prevalence in the Peruvian Amazon is not well ...
José-Manuel Ramos-Rincón, Sonia Ortiz-Martínez, María-Esteyner Vásquez-Chasnamote, Eva de-Miguel-Balsa, Olga-Nohelia Gamboa-Paredes, Michael-John Talledo-Albujar, Giovanni López-Campana, Juan Carlos Celis-Salinas, Laura Prieto-Pérez, Miguel Górgolas-Hernández, Martin Casapía-Morales   +10 more
doaj   +1 more source

Comparing the cost-effectiveness of methods for estimating population density for primates in the Amazon rainforest Peru [PDF]

, 2015
With increasingly extreme fluctuations in flood levels in the Amazon basin (Malhi et al. 2008, Marengo et al. 2012, Bodmer et al. 2014) the future of its' fauna is becoming more uncertain.
Bowles, Matthew David
core