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Registros recuperados: 217 | |
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Oliveira,Ana Paula de; Schiavini,Ivan; Vale,Vagner Santiago do; Lopes,Sérgio de Faria; Arantes,Carolina de Silvério; Gusson,André Eduardo; Júnior,Jamir Afonso Prado; Dias-Neto,Olavo Custódio. |
The area evaluated in this study was a continuous stretch comprising three vegetation formations: gallery forest, semideciduous seasonal forest and cerradão (woodland savanna). The aim of this study was to examine the tree community dynamics in a forest gradient-from gallery forest to cerradão-at Panga Ecological Station, in the city of Uberlandia, located in the state of Minas Gerais, Brazil. The study was based on data from a previous inventory of the continuous forest conducted in 211 permanent 10 × 10 m sample plots in eight parallel transect running perpendicular to Panga Creek. Trees with a diameter at breast height > 4.77 cm were sampled in 1997, 2002 and 2007. With the exception of the cerradão, there was a net reduction in tree density over the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest dynamics; Gallery forest; Semideciduous seasonal forest; Woodland savanna; Savanna. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200010 |
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MENEZES,P.H.S.; ALBUQUERQUE,J.A.A.; SMIDERLE,J.O.; MEDEIROS,R.D.; ALVES,J.M.A.; GIANLUPPI,D.. |
ABSTRACT: Weeds from soils submitted to different tillage managements were identified in two consecutive years of soybean cultivation in the Cerrado of Roraima. The study was carried out in three areas: native area (NA), mechanically mowed native area (MA), and limed area (LA). A descriptive analysis of the phytosociological parameters relative density (Drr), relative frequency (Frr), relative dominance (Dor), importance value index (IVI), and index of relative importance (IRI) was performed to interpret the results. The weed similarity index (SI) was also calculated in the assessed areas. The highest relative frequencies were observed for Trachypogon plumosus (40.92%), Bulbostylis capillaris (18.52%), and Spermacoce capitata (18.33%) in the native area... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Phytosociological parameters; Savanna. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100276 |
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Mendes,Nathalia da Silva Rodrigues; Gomes-Ruffi,Cristiane Rodrigues; Lage,Moacir Evandro; Becker,Fernanda Salamoni; Melo,Adriane Alexandre Machado de; Silva,Flávio Alves da; Damiani,Clarissa. |
Food industries have been concerned about managing the waste generated by their production processes in order to minimize environmental impacts and also about the development of formulations with different and innovative ingredients such as fruits from the Brazilian savanna. Seeking to meet the expectations of consumers who desire healthy and practical products, this study aimed to evaluate the oxidative stability and the variations in chemical composition and antioxidant potential of cereal bars made with fruit peels and baru nuts packaged in different types of packaging. The bars formulated were packed in four different types of packaging: laminated without vacuum (LWV), transparent without vacuum (TWV), transparent under vacuum (TV), and laminated under... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste recovery; Savanna; Oxidation. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000400019 |
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Vasconcelos,Heraldo L.; Araújo,Bruna B.; Mayhé-Nunes,Antonio J.. |
Fungus-growing ants (tribe Attini) are characteristic elements of the New World fauna. However, there is little information on the patterns of diversity, abundance, and distribution of attine species in their native ecosystems, especially for the so-called "lower" genera of the tribe. A survey of attine ant nests (excluding Atta Fabricus, 1804 and Acromyrmex Mayr, 1865) was conducted in a variety of savanna and forest habitats of the Cerrado biome near Uberlândia, Brazil. In total, 314 nests from 21 species of nine genera were found. Trachymyrmex Forel, 1893 was the most diverse genus with 10 species. Eighteen species were found in the savannas, including Mycetagroicus cerradensis Brandão & Mayhé-Nunes, 2001, a species from a recently-described... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Community structure; Forest; Savanna; Trachymyrmex. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300009 |
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Custódio,Luciana Nascimento; Carmo-Oliveira,Renata; Mendes-Rodrigues,Clesnan; Oliveira,Paulo Eugênio. |
The ability of plants to generate fertile offspring is influenced by morpho-physiological and ecological factors. Hence, reproductive success is directly linked to factors affecting quantity and quality of their progeny. In the Cerrado (savanna) of Brazil, the Vochysiaceae is a widely distributed and ecologically important family. Factors affecting pre-dispersal seed predation and abortion were studied for populations of Callisthene fasciculata, C. major, Qualea multiflora and Q. parviflora. To characterize differences between genera, as well as among species, study areas, and individuals, we quantified pre-dispersal seed predation and abortion. Differences of seed abortion among the species were related to intrinsic reproductive features and not to area... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed set; Abortion; Predation; Beetles; Neotropics; Savanna; Cerrado. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000300002 |
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FERNANDES, L. A.; FURTINI NETO, A. E.; VASCONCELLOS, C. A.; GUEDES, G. A. A.. |
O efeito de sistemas de preparo do solo e doses de nitrogenio na producao de materia seca total da parte aerea, palhada e de graos e no nitrogenio acumulado por plantas de milho cultivadas sob irrigacao foi avaliado em ensaio de campo em um Latossolo Vermelho-Escuro sob vegetacao de cerrado, em uma area experimental da EMBRAPA - Centro Nacional de Pesquisa de Milho e Sorgo, Sete Lagoas (MG), no periodo de novembro de 1995 a junho de 1996. Os sistemas de preparo do solo estudados foram: plantio direto convencional com arado de discos e plantio convencional com arado de aiveca. As doses de nitrogenio, 0, 60, 120 e 240 kg ha-1 de N, foram aplicadas em cobertura. As maiores producoes de materia seca e de graos e o nitrogenio acumulado foram obtidos sob o... |
Tipo: Artigo de periódico |
Palavras-chave: Preparo; Maize; Savanna; Preparation; Productivity.; Cerrado; Milho; Nitrogênio; Produtividade; Solo; Zea Mays.; Nitrogen; Soil.. |
Ano: 1998 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/480355 |
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Barbosa,Rodrigo R.; Carriço,Cesar; Souto,Raimundo N. P.; Andena,Sergio R.; Ururahy-Rodrigues,Alexandre; Queiroz,Margareth M. C.. |
ABSTRACTPostmortem injuries are a source of misinterpretations in forensic analysis and therefore are subject matter of taphonomic interest. Many types of injuries can cause different artifacts, which deserve attention of the forensic pathologists when evaluating corpses, either at the crime scene or during an autopsy. Insects can be important biotaphonomic agents and their activity may result in artifacts that resemble antemortem injuries. Here, we describe postmortem injuries caused by the Neotropical wasp Agelaia fulvofasciata (Degeer, 1773) on domestic pig carcasses weighting 15 kg. The specimens showed extensive injuries to the lower lip, similar to lacerations, and some minor lesions on the snout and anus. In addition, we observed the same wasp... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Autopsy; Forensic Entomology; Savanna. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000300257 |
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BATALHA,M. A.; MANTOVANI,W.. |
A natural vegetation area, with 1269 ha, composed mainly by cerrado, located at Santa Rita do Passa Quatro Municipality, São Paulo State, southeastern Brazil (21°36-39'S, 47°36-38'W), was studied. From September 1995 to February 1997, a floristic survey was carried out, when all vascular plant species at reproductive stage were collected. The flowering and fruiting patterns of the community were studied, comparing the herbaceous and the woody species. In the herbaceous component, 239 species were found and, in the woody one, 108 species. The woody species flowered mainly at the beginning of the rainy season, while the herbaceous ones produced flowers generally at the end of that season. The proportion of anemo and autochorous species was greater in the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Savanna; Phenology; Pé-de-Gigante; São Paulo; Brazil. |
Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100016 |
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Registros recuperados: 217 | |
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