Redundancy Analysis
Mostrando 1-12 de 207 artigos, teses e dissertações.
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1. Drivers of floristic variation in biogeographic transitions: insights from the ecotone between the largest biogeographic domains of South America
ABSTRACT Ecological transitions usually represent vulnerable ecosystems and high biodiversity. Investigating their drivers is important from both biogeographic and conservationist perspectives. One of these transitions is situated between the two largest biogeographic domains of South America - the Amazon and the Cerrado. We evaluated variation in tree flori
Acta Bot. Bras.. Publicado em: 2020-03
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2. Structure and dynamics of the protoplankton community in an environmentally protected urban stream
Resumo O objetivo foi investigar, em escalas espacial e temporal, a abundância das comunidades de protozoários bem como os fatores intervenientes na estruturação das mesmas em um córrego urbano. Métodos: Amostras de água para análise de comunidades biológicas (amebas testáceas, ciliados e bactérias) e para análise de variáveis limnológicas fora
Braz. J. Biol.. Publicado em: 02/12/2019
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3. Cladocera distribution along an environmental gradient on the Cerrado-Amazon ecotone: a preliminary study
Resumo: Objetivo Nosso objetivo neste estudo é entender a distribuição de espécies de Cladocera ao longo de um gradiente ambiental em florestas e paisagens agrícolas no sul da Amazônia. Métodos Coletamos comunidades de Cladocera e variáveis ambientais em cinco riachos e verificamos suas associações com uma Análise de Redundância. Resultados Ac
Acta Limnol. Bras.. Publicado em: 25/11/2019
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4. A lima bean core collection based on molecular markers
ABSTRACT Some germplasm collections have a high number of accessions, which makes it difficult to explore the genetic variability present in the germplasm bank due to the redundancy and the difficulty of detailed analysis of all conserved accessions. Therefore, our study aimed to analyze the genetic diversity of 153 lima bean (Phaseolus lunatus) accessions f
Sci. agric. (Piracicaba, Braz.). Publicado em: 02/09/2019
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5. Intra-annual variation in rainfall and it’s influence of the adult’s Cyprideis spp (Ostracoda, Crustacea) on a eutrophic estuary (Guanabara Bay, Rio de Janeiro, Brazil).
Resumo A distribuição espacial e temporal de duas espécies de ostracodes adultos (Cyprideis sp. e Cyprideis salebrosa) foi estudada em função do padrão pluviométrico na Baía de Guanabara, Rio de Janeiro, Brasil. As amostras foram coletadas em dez estações ao longo de seis campanhas, representando três períodos (Seco, Pré e Pós Chuvoso) por dois
Braz. J. Biol.. Publicado em: 02/09/2019
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6. Does resilience influence food waste causes? A systematic literature review
Resumo Estudos que buscam relacionar a resiliência e o desperdício de alimentos encontram-se ainda em fase exploratória e de desenvolvimento. Observa-se, portanto, a necessidade de compreender como a resiliência pode influenciar a redução do desperdício de alimentos, de forma que as organizações estejam preparadas para evitá-lo e/ou reduzi-lo e, co
Gest. Prod.. Publicado em: 12/08/2019
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7. Identification of duplicates in cassava germplasm banks based on single-nucleotide polymorphisms (SNPs)
ABSTRACT: Genetic redundancy in cassava (Manihot esculenta Crantz) presents a challenge to efficient management of genetic resources. This study aimed to identify and define the genetic structure of duplicates in cassava germplasm from various Embrapa research units, using single-nucleotide polymorphism (SNP) markers. We evaluated 2,371 accessions with 20,71
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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8. Organization of fish assemblages in blackwater Atlantic Forest streams
RESUMO O objetivo do estudo foi testar se espécies de peixes ocupam diferentes mesohabitats definidos por critérios específicos de tipos de substrato em riachos de águas pretas de Mata Atlântica. Durante a estação de baixa vazão (junho-setembro/2016), foram amostrados quatorze riachos costeiros de águas pretas no litoral de São Paulo, Brasil. Para
Neotrop. ichthyol.. Publicado em: 29/04/2019
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9. Abiotic effects on the cover and richness of corticolous lichens on Araucaria angustifolia trunks
ABSTRACT Lichens play a key role in natural ecosystems, as they can function as primary producers, recycle minerals and fix nitrogen. Despite their environmental importance, little is known about lichen ecology in Brazil, and especially about how abiotic factors may influence their spatial distribution. In this study, we aimed to verify how the cover and ric
Acta Bot. Bras.. Publicado em: 21/09/2018
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10. Variations in culturable bacterial communities and biochemical properties in the foreland of the retreating Tianshan No. 1 glacier
Abstract As a glacier retreats, barren areas are exposed, and these barren areas are ideal sites to study microbial succession. In this study, we characterized the soil culturable bacterial communities and biochemical parameters of early successional soils from a receding glacier in the Tianshan Mountains. The total number of culturable bacteria ranged from
Braz. J. Microbiol.. Publicado em: 2018-09
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11. Automatic Identification of Cigarette Brand Using Near-Infrared Spectroscopy and Sparse Representation Classification Algorithm
A cigarette brand automatic classification method using near-infrared (NIR) spectroscopy and sparse representation classification (SRC) algorithm is put forward by the paper. Comparing with the traditional methods, it is more robust to redundancy because it uses non-negative least squares (NNLS) sparse coding instead of principal component analysis (PCA) for
J. Braz. Chem. Soc.. Publicado em: 2018-07
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12. VARIATION OF WATER QUALITY ALONG A RIVER IN AGRICULTURAL WATERSHED WITH SUPPORT OF GEOGRAPHIC INFORMATION SYSTEMS AND MULTIVARIATE ANALYSIS
ABSTRACT This study demonstrates using remote sensing, geographic information systems and multivariate statistics to study water quality in an agricultural watershed. The monitoring of water quality in the watershed of Lontras's river in the southwestern region of the State of Paraná had been done in 2012 and 2013 with a multi-parameter probe in ten sites t
Eng. Agríc.. Publicado em: 2018-01