Results 91 to 100 of about 90,560 (291)

A water level relationship between consecutive gauge stations along Solim\~oes/Amazonas main channel: a wavelet approach

, 2013
Gauge stations are distributed along the Solim\~oes/Amazonas main channel to monitor water level changes over time. Those measurements help quantify both the water movement and its variability from one gauge station to the next downstream.
Novo, E. M. L., Pereira, E. S., Rennó, C. D., Somoza, R. D.   +3 more
core   +1 more source

The visible and invisible drivers of biocultural loss in the Amazon

People and Nature, EarlyView.
Abstract The Amazon is rapidly approaching an ecological tipping point driven by deforestation, forest degradation and global climate change. These are visible issues that receive increasing political and public attention. However, the accelerating biocultural loss in the Amazon, including the extinction of Indigenous languages, the disruption of ...
Torsten Krause, Mairon G. Bastos Lima, Jesica López, Karolin Obert, Juan A. Samper, Ana Maria Vargas   +5 more
wiley   +1 more source

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

PLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha, Anselmo Nogueira, Matheus Colli‐Silva, Juliana Gastaldello Rando   +3 more
wiley   +1 more source

Review of river fisheries valuation in Central and South America [PDF]

, 2008
Unlike Africa and Asia, where a large part of the population are heavily dependent upon fishing for their livelihoods, fishing for a living in the interior of Central and South America (CSA) remains a marginal occupation for all but the most isolated of ...
Bennett, E., Thorpe, A.
core   +1 more source

Capsicum chinense as an African traditional vegetable: Culture, resilience, and opportunity

PLANTS, PEOPLE, PLANET, EarlyView.
Capsicum chinense is central to everyday diets, cultural identity, and smallholder livelihoods across Sub‐Saharan Africa, yet remains overlooked in agricultural research and policy. This paper reframes C. chinense as a traditional, climate‐resilient vegetable shaped by centuries of farmer stewardship and cultural selection.
Derek W. Barchenger, Herbaud P. F. Zohoungbogobo   +1 more
wiley   +1 more source

A pilot variational coupled reanalysis based on the CESAM climate model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Variational data assimilation of in‐situ and satellite ocean data and reanalysis atmospheric data into an intermediate complexity Earth system model is possible by adjusting the surface fluxes and internal model parameters. This pilot application requires nearly complete information on the atmospheric state for synchronization.
Armin Köhl, Iuliia Polkova, Guokun Lyu, Frank Lunkeit, Abhirup Banerjee, Silke Schubert, Detlef Stammer   +6 more
wiley   +1 more source

Molecular diagnosis of the arowanas Osteoglossum ferreirai Kanazawa, 1966 and O. bicirrhossum (Cuvier, 1829) from the Orinoco and Amazon River basins

Neotropical Ichthyology
The arowanas, fishes of Gondwanan origin, are represented in South America by the genus Osteoglossum. All species were initially reported as being exclusive to the Amazon region, with O. ferreirai restricted to the Negro River basin and O. bicirrhosum to
Maria Doris Escobar L., Izeni P. Farias, Donald C. Taphorn B., Miguel Landines, Tomas Hrbek   +4 more
doaj   +1 more source

Rickettsial Disease in the Peruvian Amazon Basin

PLOS Neglected Tropical Diseases, 2016
Using a large, passive, clinic-based surveillance program in Iquitos, Peru, we characterized the prevalence of rickettsial infections among undifferentiated febrile cases and obtained evidence of pathogen transmission in potential domestic reservoir contacts and their ectoparasites. Blood specimens from humans and animals were assayed for spotted fever
Kocher, Claudine, Morrison, Amy-C., Leguia, Mariana, Loyola Sosa, Steev Orlando, Castillo, Roger-M., Galvez, Hugo-A., Astete, Helvio, Flores-Mendoza, Carmen, Ampuero, Julia-S., Bausch, Daniel-G., Halsey, Eric-S., Cespedes, Manuel, Zevallos, Karine, Jiang, Ju, Richards, Allen-L.   +14 more
openaire   +5 more sources

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source

Hidden diversity in Prochilodus nigricans: A new genetic lineage within the Tapajós River basin.

PLoS ONE, 2020
Highly spread through the Amazon River basin, Prochilodus nigricans have had its taxonomic validity recently questioned, when genetic differences between Western and Eastern Amazon populations from the Brazilian shield were detected.
Ueslei Lopes, Pedro M Galetti, Patricia Domingues de Freitas   +2 more
doaj   +1 more source