Spatial Structure
Mostrando 1-12 de 811 artigos, teses e dissertações.
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1. Population structure, diametric distribution and use of Commiphora leptopholoeos (Mart.) JB Gillett in arboreal Caatinga
ABSTRACT The objective of this work was to characterize the population structure, analyze the spatial distribution pattern and identify the potential use of the Commiphora leptopholoeos in the Contendas do Sincorá National Forest, BA. Thus, three disjoint transects of 40 x 160 m were installed for the phytosociological study and spatial distribution and sub
Revista Ceres. Publicado em: 2022
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2. SPATIAL AUTOCORRELATION OF PHYSICAL ATTRIBUTES OF AN OXISOL
ABSTRACT Studies that seek to identify a smaller number of soil attributes that represent others can generate less expenditure of time and financial resources for monitoring cultivated areas. Thus, this study aimed to analyze the spatial distribution and spatial autocorrelation of physical attributes of an Oxisol (Latossolo Vermelho Amarelo, Brazilian Soil C
Eng. Agríc.. Publicado em: 2021-04
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3. Species representativeness of Fabaceae in restrictive soils explains the difference in structure of two types of Chaco vegetation
ABSTRACT The distributions of species of Fabaceae are strongly related to the soil. Their presence can alter restrictive conditions and favour the establishment of other species. However, it is still not known how the relationship between species of Fabaceae and edaphic factors interact in structuring woody Chaco vegetation. In this context, we aimed to test
Acta Bot. Bras.. Publicado em: 2020-09
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4. Patterns of species diversity in different spatial scales and spatial heterogeneity on beta diversity
ABSTRACT Patterns of species diversity are essential to understand community structure. We aimed to determine species diversity and patterns of beta diversity in different spatial scales. We sampled three thousand individuals between the coordinates 22°10'S to 22°16'S and 47°47'W to 48°00'W to assess species diversity in three spatial scales (maximum dis
Acta Bot. Bras.. Publicado em: 2020-03
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5. Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that
Acta Bot. Bras.. Publicado em: 2020-03
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6. Population density, depressive symptoms, and suicidal thoughts
Objective: To conduct a geospatial analysis of suicide deaths among young people in the state of Paraná, southern Brazil, and evaluate their association with socioeconomic and spatial determinants. Methods: Data were obtained from the Mortality Information System and the Brazilian Institute of Geography and Statistics. Data on suicide mortality rates (SMR
Braz. J. Psychiatry. Publicado em: 2020-02
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7. Suicide mortality among youth in southern Brazil: a spatiotemporal evaluation of socioeconomic vulnerability
Objective: To conduct a geospatial analysis of suicide deaths among young people in the state of Paraná, southern Brazil, and evaluate their association with socioeconomic and spatial determinants. Methods: Data were obtained from the Mortality Information System and the Brazilian Institute of Geography and Statistics. Data on suicide mortality rates (SMR
Braz. J. Psychiatry. Publicado em: 2020-02
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8. The effects of two abundant ant species on soil nutrients and seedling recruitment in Brazilian Atlantic Forest
ABSTRACT Ants can influence soil fertility and the spatial distribution of seeds, with possible effects on seedling recruitment. The ant species Pachycondyla striata Fr. Smith, 1858 and Odontomachus chelifer (Latreille, 1802) co-occur in many forest areas in the Neotropics. We assessed soil fertility and seed bank structure in soil samples close and distant
Rev. Bras. entomol.. Publicado em: 13/01/2020
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9. G-SIVAR: A GLOBAL SPATIAL INDICATOR BASED ON VARIOGRAM
Abstract: Among the exploratory spatial data analysis tools, there are indicators of spatial association, which measure the degree of spatial dependence of analysed data and can be applied to quantitative data. Another procedure available is geostatistics, which is based on the variogram, describing quantitatively and qualitatively the spatial structure of a
Bol. Ciênc. Geod.. Publicado em: 05/12/2019
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10. Grupos econômicos e acumulação urbana na cidade do Rio de Janeiro: Odebrecht e Carvalho Hosken
Resumo As estratégias de acumulação e de poder dos grupos econômicos são centrais para o debate sobre a economia política urbana contemporânea. Sua influência na produção desigual do espaço urbano e na sociedade em geral tem sido cada vez mais proeminente. A partir do referencial analítico das teorias não convencionais sobre grupos econômicos,
Rev. Bras. Estud. Urbanos Reg.. Publicado em: 05/12/2019
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11. Estruturas invisíveis de segregação na Região Metropolitana de Goiânia
Resumo Este artigo visa investigar a estrutura invisível de segregação da Região Metropolitana de Goiânia (RMG), a partir das inter-relações entre processos de produção do espaço urbano, princípios de planejamento e dinâmicas populacionais. Essas inter-relações são fundamentais para compreender a estruturação de desigualdades socioeconômica
Rev. bras. estud. popul.. Publicado em: 02/12/2019
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12. Dinâmica espaço-temporal da paisagem e estrutura populacional de Euterpe precatoria Mart. em fragmento florestal no município mato-grossense de Alta Floresta, Brasil
Resumo O Euterpe precatoria Mart., é utilizado na indústria de cosmético e alimentícia e vem sendo cada vez mais explorado no ambiente Amazônico. O objetivo deste trabalho é analisar a dinâmica espaço-temporal da paisagem e o efeito da fragmentação na estrutura e no padrão de distribuição espacial da espécie Euterpe precatoria, tendo como model
Ciênc. Florest.. Publicado em: 02/12/2019