Results 31 to 40 of about 428 (159)

Geodesia as a Support Tool for the Pantanal Neotectonics Understanding: the Corumbá Fluviometric Station Example, Mato Grosso do Sul, Brazil [PDF]

Anuário do Instituto de Geociências, 2018
Global Navigation Satellite Systems (GNSS) were initially designed to extend the coverage and accuracy of navigation systems, but given the possible applications, it is possible to analyze the different terrestrial phenomena from a specific methodology.
Antônio Conceição Paranhos Filho, Gustavo Marques e Amorim, Rômulo Machado, José Marcato Junior, Fabricio dos Santos Prol, Jose Renato Silva de Oliveira, Camila Leonardo Mioto   +6 more
doaj   +1 more source

Desarrollo de un modelo de corrección de la influencia del vapor de agua troposférico en el procesamiento DInSAR con el aporte de GNSS y ERA5.

Revista Cartográfica
El presente trabajo analiza la influencia del vapor de agua troposférico en una de las más novedosas técnicas de monitoreo de deformaciones corticales: la Interferometría Diferencial de Imágenes de Radar de Apertura Sintética (DInSAR).
Patricia Alejandra Rosell, María Virginia Mackern Oberti, Pablo Andrés Euillades   +2 more
doaj   +1 more source

Estimativas do Nível do Mar na América do Sul a partir de Registros Maregráficos e Coordenadas SIRGAS-CON

Revista Brasileira de Cartografia, 2020
Neste estudo, avaliou-se a taxa relativa do nível do mar em 20 estações maregráficas, com dados mensais do Permanet Service for Mean Sea Level (PSMSL), na América do Sul.
Lucas Gonzales Lima Pereira Calado, Silvio Jacks dos Anjos Garnés, Karoline Paes Jamur   +2 more
doaj   +1 more source

Spatial Distribution and Bioprospecting of Phytopathogenic Fungi on Amaranthus for Biological Control in Brazil

Weed Research, Volume 66, Issue 5, September/October 2026.
ABSTRACT The genus Amaranthus comprises approximately 70 species with a global distribution, particularly in tropical and subtropical regions. In Brazil, Amaranthus hybridus is a highly harmful weed characterised by aggressive ecophysiology, producing more than 250 000 viable seeds per plant and forming extensive soil seed banks.
Werik P. Dias, Adryelle A. Sousa, Lucas H. V. V. Carvalho, Mike S. J. Ferreira, André L. Firmino, Bruno S. Vieira   +5 more
wiley   +1 more source

A quantitative analysis to detect mass mortality events (wrecks) in Procellariiformes

Journal of Applied Ecology, Volume 63, Issue 7, July 2026.
Our study provides the first systematic assessment of seabird mass mortality events in the South Atlantic and introduces a transferable statistical framework for detecting MMEs in other taxa and regions lacking baseline mortality information. By identifying recurrent temporal anomalies, high‐risk areas and vulnerable species, we could establish ...
Laura Baes, Ana Carolina Ewbank, Henrique Chupil, Carolina Reigada   +3 more
wiley   +1 more source

Social roles and resource competition mediate intraspecific interactions of Chilean Flamingo (Phoenicopterus chilensis) in southern Brazil

Journal of Zoology, Volume 329, Issue 3, Page 257-270, July 2026.
In social birds such as flamingos, intraspecific interactions are frequent and play a key role in flock cohesion, communication, and the establishment of social networks. Understanding the patterns and drivers of these interactions can provide valuable ecological insights and inform management, husbandry, and conservation practices.
H. C. Delfino, P. Rose, C. J. Carlos
wiley   +1 more source

Southern Perú coseismic subsidence: 23 June 2001 8.4-Mw earthquake [PDF]

Advances in Geosciences, 2008
The 23-June-2001 8.4-Mw magnitude earthquake partially filled the 1868-seismic-gap in southern Perú. This earthquake produced a thrust faulting dislocation with a rupture that started at about ~200 km SE from the 1996's Nazca earthquake epicenter ...
L. Ocola
doaj  

Simultaneous Generation of Topographic Models and Manning Roughness Coefficient Maps From Tri‐Stereoscopic Satellite Images: Application to the Huarmey River, Peru

The Photogrammetric Record, Volume 41, Issue 195, July‐September 2026.
Tri‐stereoscopic PeruSat‐1 imagery enables the simultaneous generation of 0.70 m‐resolution topography and spatially distributed Manning roughness maps, achieving 0.434 m vertical accuracy. Integrated into HEC‐RAS, these products provide consistent, high‐resolution inputs that improve hydraulic modelling and flood risk assessment in data‐scarce river ...
Jorge L. Miranda‐Pita, Pedro A. Plaza‐Álvarez, Jorge Lopez‐Rebollo, Diego González‐Aguilera   +3 more
wiley   +1 more source

Diet composition of the Red‐billed curassow (Crax blumenbachii) and its role as seed disperser in the Atlantic Forest: conservation insights

Restoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Forest fragmentation and defaunation are major drivers of biodiversity loss in the Atlantic Forest of Brazil, where 70–90% of tree species depend on animal‐mediated seed dispersal. Reintroduction of large frugivores, such as cracids, is being used to restore species populations and lost ecological functions.
Maria P. M. X. Rufino, Carlos M. M. E. Torres, Peter van der Sleen, Lausanne S. de Almeida, Fabiano R. de Melo, Kesleyane P. Camilo, Otávio M. Verly, Walter da Silva Costa, Jacinto M. de Lana, Marielos Peña‐Claros   +9 more
wiley   +1 more source

Evaluación del comportamiento cinemático de una serie de estaciones del Sistema Geocéntrico para las Américas procesadas con Precise Point Positioning en línea

Uniciencia, 2014
Mediante un cálculo en la modalidad Precise Point Positioning (PPP) en línea, se procesaron más de dos años de observaciones diarias de 14 estaciones de operación continua pertenecientes al Sistema Geocéntrico para las Américas (SIRGAS), las cuales están
Jorge Moya Zamora, Sara Bastos Gutiérrez, María José Rivas Guzmán, Gabriela Cordero Gamboa   +3 more
doaj