Results 1 to 10 of about 3,371 (226)

Phenology and Seasonal Ecosystem Productivity in an Amazonian Floodplain Forest [PDF]

Remote Sensing, 2019
Several studies have explored the linkages between phenology and ecosystem productivity across the Amazon basin. However, few studies have focused on flooded forests, which correspond to c.a. 14% of the basin.
Thiago S F Silva, Yadvinder Malhi, Costa G B   +2 more
exaly   +6 more sources

Seed dispersal by macaws shapes the landscape of an Amazonian ecosystem. [PDF]

Sci Rep, 2017
AbstractSeed dispersal is one of the most studied plant–animal mutualisms. It has been proposed that the dispersal of many large-seeded plants from Neotropical forests was primarily conducted by extinct megafauna, and currently by livestock. Parrots can transport large fruits using their beaks, but have been overlooked as seed dispersers.
Baños-Villalba A, Blanco G, Díaz-Luque JA, Dénes FV, Hiraldo F, Tella JL.   +5 more
europepmc   +6 more sources

Andean Tectonics and Mantle Dynamics as a Pervasive Influence on Amazonian Ecosystem. [PDF]

Sci Rep, 2019
AbstractThe Amazonian landscape evolution is the result of the combined effect of Andean tectonism, climate and the Earth’s interior dynamics. To reconstruct the landscape evolution and its influence on paleoenvironmental variations within Amazonia since the Oligocene, we conducted numerical experiments that incorporate different surface and geodynamic
Bicudo TC, Sacek V, de Almeida RP, Bates JM, Ribas CC.   +4 more
europepmc   +5 more sources

Could more efficient utilization of ecosystem services improve soil quality indicators to allow sustainable intensification of Amazonian family farming?

Ecological Indicators, 2021
In the Amazonian periphery, there are sources of numerous disservices, including deforestation, loss of wildlife habitat and biodiversity erosion. However, there are great opportunities to adopt appropriate agricultural management practices to take ...
Lorena Campos, Sacha Mooney
exaly   +3 more sources

Prevalence and risk factors associated with ectoparasite infestation of buffaloes in an Amazonian ecosystem. [PDF]

Parasit Vectors, 2018
The water buffalo (Bubalus bubalis) is well adapted in some regions of the Amazon. Of all Brazilian states, Pará contains the largest number of this species, with 510,000 animals, approximately 38% of the Brazilian buffaloes. Despite the socioeconomic importance of bubaline farming in the northern region, little is known about the prevalence of ...
Batista HR, Sarturi C, Stelmachtchuk FN, Oliveira DR, Morini AC, Gennari SM, Marcili A, Bastos FAN, Barata LES, Minervino AHH.   +9 more
europepmc   +5 more sources

Conservation strategies for Arapaima gigas (Schinz, 1822) and the Amazonian várzea ecosystem [PDF]

Brazilian Journal of Biology, 2007
In the present study we report a spatial autocorrelation analysis of molecular data obtained for Arapaima gigas, and the implication of this study for conservation and management. Arapaima is an important, but critically over-exploited giant food fish of the Amazonian várzea.
Izeni Pires Farias, Tomáš Hrbek
exaly   +6 more sources

MICROPHYTOPLANKTON DYNAMICS IN CURUPERÉ ESTUARY AT THE AMAZONIAN MANGROVE ECOSYSTEM

Boletim do Instituto de Pesca, 2020
The aim of this study was to evaluate microphytoplankton dynamics and environmental parameters in the estuary of the Curuperé River, located in an Amazonian mangrove ecosystem.
Fernanda Nogueira REIS, Lucinice Ferreira BELÚCIO, Fábio Campos PAMPLONA, Luciana Thaila Lopes REIS, Giselle Damasceno VEIGA, Nuno Filipe Alves Correia MELO   +5 more
doaj   +4 more sources

Prospective analysis of deforestation determinants in the Amazonian landscapes

World Development Sustainability, 2023
Amazonian landscapes are socio-ecological systems that provide fundamental ecosystem services for the maintenance of landscape regulation, biodiversity, and climate regulation.
Erika Mayerly Chavarría Rodríguez, Johan Manuel Redondo   +1 more
doaj   +1 more source

Species-Specific Shifts in Diurnal Sap Velocity Dynamics and Hysteretic Behavior of Ecophysiological Variables During the 2015–2016 El Niño Event in the Amazon Forest

Frontiers in Plant Science, 2019
Current climate change scenarios indicate warmer temperatures and the potential for more extreme droughts in the tropics, such that a mechanistic understanding of the water cycle from individual trees to landscapes is needed to adequately predict future ...
Bruno O. Gimenez, Kolby J. Jardine, Niro Higuchi, Robinson I. Negrón-Juárez, Israel de Jesus Sampaio-Filho, Leticia O. Cobello, Clarissa G. Fontes, Todd E. Dawson, Charuleka Varadharajan, Danielle S. Christianson, Gustavo C. Spanner, Alessandro C. Araújo, Jeffrey M. Warren, Brent D. Newman, Jennifer A. Holm, Charles D. Koven, Nate G. McDowell, Jeffrey Q. Chambers, Jeffrey Q. Chambers   +18 more
doaj   +1 more source

Nutrient Cycling of Cover Crops in an Amazonian Ecosystem

Journal of Agricultural Science, 2022
Cover crops act to improve the chemical and physical quality of the soil and provide sustainability in agricultural systems. Studying the decomposition of these cover crops is key to understand the process of nutrient cycling in cultivation. The purpose of the study was to assess the decomposition and release of nutrients from cover crops in an ...
Mauro da Silva Alves, Laís Alves da Gama, Bruna Nogueira Leite, Karla Gabrielle Dutra Pinto, Letícia de Paula Neves de Souza, Sônia Maria Figueiredo Albertino   +5 more
openaire   +1 more source