Results 11 to 20 of about 5,502 (236)

Hydrological Response to Drought Occurrences in a Brazilian Savanna Basin [PDF]

open access: yesResources, 2020
The Brazilian savanna is one of the world’s 25 biodiversity hotspots. However, droughts can decrease water availability in this biome. This study aimed to analyze meteorological and hydrological droughts and their influence on the hydrological behavior ...
Rubens Junqueira   +3 more
doaj   +3 more sources

Review of Ants (Hymenoptera: Formicidae) as bioindicators in the Brazilian Savanna

open access: yesSociobiology, 2018
The Brazilian Savanna is threatened mainly by the expansion of agriculture and livestock. Regarding environmental problems, habitat loss in the biome and the need to verify studies on ants as bioindicators, the goal of this paper was to carry out a ...
Mariáh Tibcherani   +3 more
doaj   +3 more sources

ASSESSMENT OF TEXTURE FEATURES FOR BRAZILIAN SAVANNA CLASSIFICATION: A CASE STUDY IN BRASÍLIA NATIONAL PARK

open access: yesRevista Brasileira de Cartografia, 2017
Distinguishing Brazilian savanna physiognomies is an essential task to better evaluate carbon storage and potential emissions of greenhouse gases. In this study, we propose to evaluate the potential of texture features to improve the discrimination among
Cesare Di Girolamo Neto   +2 more
doaj   +3 more sources

Richness and composition of anuran assemblages from an Amazonian savanna [PDF]

open access: yesZooKeys, 2019
The Amazonian savannas occupy approximately 150,000 km2 of the Brazilian Amazon, occurring in scattered isolated patches over large areas of forest in the states of Amapá, Amazonas, Pará, Roraima and Rondônia. Despite having considerable variation in the
Carlos Eduardo Costa-Campos   +1 more
doaj   +4 more sources

Ecological phytochemistry of Cerrado (Brazilian savanna) plants [PDF]

open access: yesPhytochemistry Reviews, 2013
The Cerrado (the Brazilian savanna) is one of the vegetation formations of great biodiversity in Brazil and it has experienced strong deforestation and fragmentation. The Cerrado must contain at least 12,000 higher plant species.We discuss the ecological relevance of phytochemical studies carried out on plants from the Cerrado, including examples of ...
Novaes, Paula   +3 more
openaire   +3 more sources

Simulating the Effect of Fire Frequency on the Vegetation Biomass and Carbon Emissions in the Brazilian Savanna: BEFIRE Model

open access: yesBiodiversidade Brasileira, 2019
The Brazilian Cerrado is the savanna with the greatest biodiversity in the world. The adequate definition of fire frequency is a key factor for the success of savanna management, since frequent fires and in a short time interval may prevent the recovery
Leticia Gomes da Silva   +3 more
doaj   +5 more sources

Seasonal variation of ground spiders in a Brazilian Savanna [PDF]

open access: yesZoologia (Curitiba), 2010
The Brazilian Savanna Ecoregion (Cerrado) is one of the richest biomes in the world, with a characteristic highly seasonal climate a dry season between May and September and a rainy season from October through April. Ground-dwelling spiders from three Cerrado phytophysiognomies, "campo cerrado", "cerrado" and "cerrad o", were sampled using pitfall ...
Mineo, Marina Farcic   +2 more
openaire   +5 more sources

Estimating Pasture Biomass and Canopy Height in Brazilian Savanna Using UAV Photogrammetry

open access: yesRemote Sensing, 2019
The Brazilian territory contains approximately 160 million hectares of pastures, and it is necessary to develop techniques to automate their management and increase their production.
Juliana Batistoti   +13 more
doaj   +2 more sources

A new occurrence of Gyrodontium sacchari (Spreng.) Hjortstam Pat. (Boletales, Coniophoraceae) expands the geographic distribution of the genus in Brazil [PDF]

open access: yesCheck List, 2023
We report the first occurrence of the genus Gyrodontium Pat. from the Brazilian Cerrado based on our finding of G. sacchari (Spreng.) Hjortstam. This also represents the first record of the family Coniophoraceae from the Midwest Region of central Brazil.
Lucas Leonardo-Silva   +4 more
doaj   +3 more sources

Multiple savanna ecosystem function data in the Brazilian savanna (Cerrado)

open access: yes, 2021
This data set includes monthly climate variables, two years of litterfall, leaf and fine wood decomposition rates, soil mesofauna diversity and abundance, and 16 soil biogeochemical variables from a savanna ecosystem (cerrado sensu stricto) in the ...
Bomfim, B (via Mendeley Data)
core   +2 more sources

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