Results 151 to 160 of about 519,340 (333)

Forest carbon emissions from cropland expansion in the Brazilian Cerrado biome

open access: yes, 2017
Land use, land use change, and forestry accounted for two-thirds of Brazil’s greenhouse gas emissions profile in 2005. Amazon deforestation has declined by more than 80% over the past decade, yet Brazil’s forests extend beyond the Amazon biome.
P. Noojipady   +6 more
semanticscholar   +1 more source

The Influence of Spatial Extent and Distance on Macroinvertebrate‐Environment Relationships in Conterminous USA Stream Sites

open access: yesJournal of Biogeography, EarlyView.
ABSTRACT Aim The relationships between environmental variables and macroinvertebrate assemblages depend on spatial extent, but the relative importance of local and regional factors remains unclear. Understanding these scale‐dependent relationships is crucial for improving biodiversity assessments and ecosystem management.
Bruno S. Godoy   +2 more
wiley   +1 more source

Aspecto estrutural e social da pesca artesanal na planí­­cie de inundação do Alto Rio Paraná

open access: yesBoletim do Instituto de Pesca, 2018
Este trabalho descreve aspectos estruturais e sociais dos pescadores da planí­­cie de inundação do alto Rio Paraná, localizada entre os reservatórios de Porto Primavera e Itaipu (PR) e circundada por 26 hidrelétricas a montante, que controlam a ...
Adriana Rosa Carvalho
doaj  

Alfa and Beta diversity in the cerrado sensu stricto [PDF]

open access: yes, 2001
O bioma cerrado possui uma das mais ricas florasdentre as savanas mundiais com mais de 6000 espécies, abrange uma vasta extensão territorial, contém as três maioresbacias hidrográficas sul americanas, e se destaca pela elevada biodiversidade.
Felfili, Jeanine Maria   +1 more
core   +1 more source

Origins and Diversification of the Caatinga Dry Forest Endemic Avifauna

open access: yesJournal of Biogeography, EarlyView.
ABSTRACT Aim Understanding the geographic origin of lineages is critical to comprehending their biogeographical and evolutionary histories and the historical connections among biomes. In northeastern Brazil, the Caatinga dry forest represents the largest and most biologically diverse patch of Seasonally Dry Tropical Forest in the Neotropics.
Hevana S. Lima   +5 more
wiley   +1 more source

Sentidos do diagnóstico por câncer de mama feminino para casais que o vivenciaram

open access: yesInterface: Comunicação, Saúde, Educação, 2008
A lacuna de compreensão dos sentidos construídos por casais que vivenciaram o câncer de mama da parceira motivou a realização deste estudo, que objetivou descrever e analisar os sentidos que casais constroem sobre o câncer de mama da parceira e sobre as ...
Cintia Bragheto Ferreira   +2 more
doaj  

Shade images of forested areas obtained from LANDSAT MSS data [PDF]

open access: yes
The pixel size in the present day Remote Sensing systems is large enough to include different types of land cover. Depending upon the target area, several components may be present within the pixel. In forested areas, generally, three main components are
Shimabukuro, Yosio Edemir   +1 more
core   +1 more source

Distribuição de espécies vegetais nativas em distintos macroambientes na região do oeste da Bahia [PDF]

open access: yes, 2010
Os objetivos deste trabalho foram em sete municípios do Oeste Baiano: i) realizar o levantamento das espécies vegetais em parcelas estabelecidas; ii) delimitar os ambientes savânicos de interflúvios, hidromórficos e de transição Cerrado/Caatinga; iii ...
Cardoso, Wellington dos Santos   +6 more
core  

Ensuring Pollinator Presence in Expanding Oil Crops: The Case of Mystrops debilis (Nitidulidae) and the Macauba Palm (Acrocomia aculeata, Arecaceae)

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The macauba palm (Acrocomia aculeata, Arecaceae) is a Neotropical native oil palm, increasingly important in Central and South America due to rising demand for raw materials and its potential for bioenergy. Understanding its pollinator ecology is crucial to identify new areas for cultivation. This study examines the structure of floral visitor
Javier Carreño‐Barrera   +3 more
wiley   +1 more source

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