Results 41 to 50 of about 383 (105)

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  

Beyond the Highlands: Climate Drives Evolutionary Connections Between Ancient Neotropical Mountains and Lowland Biomes

Global Ecology and Biogeography, Volume 35, Issue 2, February 2026.
ABSTRACT Aim The assembly of montane plant communities through time is underlain by historical and abiotic factors. However, the extent of evolutionary connectivity between ancient highland ecosystems and surrounding lowlands remains unclear. Here, we investigate the evolutionary connections between the campos rupestres, a hyperdiverse and fragmented ...
Yago Barros‐Souza, Monique Maianne, Rafael F. Barduzzi, Leonardo M. Borges   +3 more
wiley   +1 more source

Flooding in the Tamanduateí River Hydrographic Basin: A Spatial and Multifactorial Analysis

Transactions in GIS, Volume 30, Issue 1, February 2026.
ABSTRACT Understanding the occurrence of urban floods and their conditioning factors is essential for effective management of urban watersheds. However, few studies have explored the spatial variability of these factors in detail. This study investigates the spatial relationships between conditioning factors and flood occurrences in the Tamanduateí ...
Ítalo Rafael Costa de Mira, Aluizio Brito Maia, Antônio Miguel Vieira Monteiro, Leonardo Bacelar Lima Santos, Camilo Daleles Rennó   +4 more
wiley   +1 more source

Phenology of Richeria grandis Vahl: A dioecious species with wide geographical distribution and unique environmental specificity

Plant Species Biology, Volume 40, Issue 5, Page 452-471, September 2025.
Richeria grandis exhibits synchronized and highly seasonal reproductive phenology, emphasizing its strong dependence on local climate dynamics. The species' supra‐annual fruit production and evergreen vegetative habit highlight adaptive strategies for resource utilization and ecosystem balance.
Cristiane Coelho de Moura, Thaís Ribeiro Costa, Darliana da Costa Fonseca, Leovandes Soares da Silva, Simone Nunes Fonseca, Paula Alves Oliveira, Luciana Coelho de Moura, Anne Priscila Dias Gonzaga, Jaçanan Eloisa de Freitas Milani, Gislene Carvalho de Castro, Evandro Luiz Mendonça Machado   +10 more
wiley   +1 more source

Effects of Land Use and Environmental Characteristics on Condition Factor and Reproductive Aspects of Serrapinnus notomelas (Brazil)

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 8, August 2025.
ABSTRACT Changes in land use and land cover severely impact the ecological structure of aquatic ecosystems and can lead to losses in fish populations. To further examine the cause and effect, the present study aimed to evaluate (1) differences in land use and cover among subbasins of the Vacaria, Brilhante, Dourados and Lower Ivinhema Rivers, (2 ...
Bianca de Oliveira Souza, Lucilene Finoto Viana, Yzel Rondon Súarez, Sidnei Eduardo Lima‐Junior   +3 more
wiley   +1 more source

Between dunes and estuary: Forecasting mangrove forest change on primate culture and isolated livelihoods in Maranhão, Brazil

Geo: Geography and Environment, Volume 12, Issue 2, July‐December 2025.
Short Abstract The unique ecological conditions of the mangrove forests in the Rio Preguiças Estuary, Maranhão, Brazil, support a culturally isolated population of bearded capuchin monkeys and contribute significantly to the livelihoods and economy of the local community.
Andrea Presotto, Stuart E. Hamilton, Gustavo A. Castellanos‐Galindo, Ricardo R. Santos, Roberta Salmi   +4 more
wiley   +1 more source

Cálculo, mediante la aplicación del algoritmo de ajuste por mínimos cuadrados, de los componentes de velocidad para estaciones GNSS continuas

Uniciencia, 2014
El cálculo de la velocidad de una estación de observación continua GNSS representa un insumo fundamental en la geodesia moderna. El hecho de determinar la posición de las estaciones GNSS de forma diaria implica que se puedan establecer las series ...
Jorge Moya Zamora, Sara Bastos Gutiérrez, María Rivas Guzmán   +2 more
doaj   +2 more sources

Impact of the extreme 2015-2016 ENOS event on the geometry of the earth surface in the equatorial region of South America [PDF]

, 2020
El fenómeno del Niño-Oscilación del Sur (ENOS) es un fenómeno oceánico-atmosférico que se origina en las aguas ecuatoriales del Océano Pacífico. Existen dos fases, la fase cálida o El Niño y la fase fría o La Niña, y se refieren respectivamente a un ...
Brunini, Claudio Antonio, Carbonetti, Micaela Alejandra, Galván, Romina de los Ángeles, Gende, Mauricio Alfredo   +3 more
core   +3 more sources

From Disturbance to Recovery: Unveiling the Role of Goats and Ecological Drivers on Vegetation Dynamics of Trindade Island, South Atlantic, Brazil

Journal of Vegetation Science, Volume 36, Issue 3, May/June 2025.
We analyzed long‐term vegetation dynamics on Trindade Island, assessing the influence of feral goats and abiotic factors using remote sensing and field data. Vegetation cover increased over time, with forests and grasslands expanding. NDVI effectively captured these changes, revealing strong biotic and abiotic interactions.
Felipe Zuñe, Márcia Gonçalves Rogério, Ruy José Válka Alves, Nílber Gonçalves da Silva   +3 more
wiley   +1 more source

The GrassSyn dataset: Soil organic carbon stocks in Brazilian grassy ecosystems

Journal of Environmental Quality, Volume 54, Issue 2, Page 335-348, March/April 2025.
Abstract Although ecosystem management and restoration are known to enhance carbon storage, limited knowledge of ecosystem‐specific soil organic carbon (SOC) stocks and processes hinders the development of climate‐ready, biodiversity‐focused policies. Baseline SOC stocks data for specific ecosystems is essential.
Bianca Ott Andrade, Cristhian Hernandez Gamboa, Gabriel William Dias Ferreira, Martin Wiesmeier, Eduardo Delgado Assad, Carlos Eduardo Pellegrino Cerri, José Márcio Mello, Vinícius Augusto Morais, Gerhard E. Overbeck, Herval Vieira Pinto‐Junior, José Roberto Soares Scolforo, Carlos Gustavo Tornquist   +11 more
wiley   +1 more source