Results 21 to 30 of about 162,647 (302)

Long-Term Vegetation Dynamics in a Megadiverse Hotspot: The Ice-Age Record of a Pre-montane Forest of Central Ecuador. [PDF]

, 2018
Tropical ecosystems play a key role in many aspects of Earth system dynamics currently of global concern, including carbon sequestration and biodiversity.
Absy, Alley, Aspden, Bennett, Bernal, Bernal, Blaauw, Bush, Bush, Bush, Bush, Bush, Bush, Bush, Bush, Clark, Colinvaux, Colinvaux, Colinvaux, Colinvaux, Coplen, Correa-Metrio, Cox, Cárdenas, Cárdenas, Cárdenas, Davis, de Berc, Deplazes, Faegri, Ferdon, Finsinger, Flantua, Flantua, Gentry, Gosling, Haberle, Haffer, Hall, Harling, Haug, Heine, Hijmans, Hill, Hogg, Jacobson, Juggins, Jørgensen, Keen, Liu, Livingstone, Lombardo, Lombardo, Loughlin, Luzuriaga, Malhi, Matthews-Bird, Meyers, Mosblech, Myers, Oksanen, Puyasena, Roubik, Rull, Sierra, Stocker, Stockmarr, Urrego, Urrego, van der Hammen, van’t Veer, Von Post, Whitlock, Whitney, Whittaker, Williams   +75 more
core   +11 more sources

Pollen niche of Melipona crinita Moure & Kerr, 1950 (Hymenoptera: Apidae) in a meliponary of Acre, Brazil: a study case

Revista Chilena de Entomología, 2023
Melipona crinita is widely used in meliponiculture for the production of honey, in several places in the Amazon. Thus, the aim of this study was: (i) determine the seasonal characteristics of the pollen collected by M.
Francisco Cildomar da Silva Correia, Rui Carlos Peruquetti   +1 more
doaj   +1 more source

Increasing biomass in Amazonian forest plots [PDF]

, 2004
A previous study by Phillips et al. of changes in the biomass of permanent sample plots in Amazonian forests was used to infer the presence of a regional carbon sink.
Abel Monteagudo, Anthony Di Fiore, David A. Neill, J. Natalino M. Silva, Luzmila Arroyo, Malhi Y., Nigel C. A. Pitman, Niro Higuchi, O. L. Phillips, Oliver L. Phillips, Percy Núñez Vargas, Rodolfo Vásquez Martínez, Samuel Almeida, Simon L. Lewis, Susan G. Laurance, Terry Erwin, Timothy J. Killeen, Timothy R. Baker, William F. Laurance, Y. Malhi, Yadvinder Malhi   +20 more
core   +4 more sources

Technological development of the Western Amazon

International Journal for Innovation Education and Research, 2018
The Amazon Informatics Law derives from a National Law, but is specific to the northern region, except for Tocantis and Pará states and, in partnership with the Zona Franca de Desenvolvimento - ZFM (Development Free Zone) project regulated by the Superintendência da Zona Franca de Manaus - SUFRAMA (Superintendence of the Manaus Free Zone), it aims to ...
Mayana Fernandes Veras, Claudete Barbosa Ruschival, Karla Mazarelo Maciel Pacheco   +2 more
openaire   +2 more sources

Leveraging cloud compute and open source software to generate 3D models from drone photography [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Modern drone platforms provide the opportunity to capture large quantities of high quality, geotagged aerial imagery quickly and over large distances, at a relatively low cost. As organisations increasingly turn to digital twin technology to manage their
G. Biegel
doaj   +1 more source

Occurrence of triatomines (Hemiptera, Reduviidae) and their natural infection by Trypanosoma cruzi (Chagas, 1909) in Boca do Moa community, Cruzeiro do Sul, Acre, Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 2021
INTRODUCTION: Triatomines are insect vectors of Trypanosoma cruzi, the etiological agent of Chagas disease. METHODS: Triatomines were collected from households and by dissecting palm trees in the peri-urban areas of Cruzeiro do Sul (Acre); they were ...
Adila Costa de Jesus, Fernanda Portela Madeira, Madson Huilber da Silva Moraes, Adson Araújo de Morais, Jader de Oliveira, João Aristeu da Rosa, Luís Marcelo Aranha Camargo, Dionatas Ulises de Oliveira Meneguetti, Paulo Sérgio Berrnarde   +8 more
doaj   +1 more source

Crystallinity and Chemical Structure of Amazon Wood Species in a Log Yard After Natural Degradation

BioResources, 2023
The objective of this work was to evaluate whether the chemical composition of wood and its crystallinity can help in the analysis of degradation by fungi and insects in logs of Amazonian wood species stored in a stockyard. For this study, wood from five
Juliane da Silva Sampaio, Fernando Wallase Carvalho Andrade, Victor Hugo Pereira Moutinho, Manoel Roberval Pimentel Santos, Jessica Sabrina da Silva Ferreira   +4 more
doaj   +2 more sources

Determination of Region of Influence Obtained by Aircraft Vertical Profiles Using the Density of Trajectories from the HYSPLIT Model

Atmosphere, 2020
Aircraft atmospheric profiling is a valuable technique for determining greenhouse gas fluxes at regional scales (104–106 km2). Here, we describe a new, simple method for estimating the surface influence of air samples that uses backward trajectories ...
Henrique L. G. Cassol, Lucas G. Domingues, Alber H. Sanchez, Luana S. Basso, Luciano Marani, Graciela Tejada, Egidio Arai, Caio Correia, Caroline B. Alden, John B. Miller, Manuel Gloor, Liana O. Anderson, Luiz E. O. C. Aragão, Luciana V. Gatti   +13 more
doaj   +1 more source

Avifauna of the upper Purus River: relevant records for an area lacking ornithological surveys [PDF]

Papéis Avulsos de Zoologia, 2021
Birds are the best-known vertebrate group, although many localities in the world are considered to be knowledge gaps. This is the case of many little-known environments in the Amazon biome, the world’s largest tropical forest.
Fernando Igor de Godoy, Edson Guilherme, Diego Pedroza, Ricardo Antônio de Andrade Plácido   +3 more
doaj   +1 more source