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	Provedor de dados AgEcon (6) Acta Botanica (5) Zoologia (3) Infoteca-e (3) Rev. Bras. Zool. (2) PFB - Pesquisa Florestal Brasileira (2) Agronomy (1) Agricultura Técnica (1) Animal Sciences (1) Colegio de Postgraduados (1) Biota Neotropica (1) BABT (1) BJB (1) Scientia Agricola (1) Ecología austral (1) Gayana (1) Gayana Botánica (1) Genet. Mol. Biol. (1) PAB (1) Planta Daninha (1) Mais... Autor CARVALHO, A. M. de (3) ALVES, P. C. A. C. (2) Bayer,Cimélio (2) Lopes,José (2) Medri,Ísis Meri (2) Sausen,Tanise Luisa (2) Xerez,Roberto de (2) Abreu, Paulo Giovanni de; Embrapa Suínos e Aves (1) Abreu, Valeria Maria Nascimento; Embrapa Suínos e Aves (1) Aguilera,María (1) Ahn,Hee Kwon (1) Aita,Celso (1) Andrade, Messias José Bastos de; UFLA (1) BUFON, V. B. (1) BUSTAMANTE-SÁNCHEZ,MARCELA A. (1) Bastos,Leonardo Mendes (1) Bianchini Jr.,Irineu (1) Birthal, Pratap Singh (1) Boisvert, Richard N. (1) Brum,Paulo R. (1) Mais... Palavra-chave Decomposition (38) Decomposição (6) Cover crops (3) Forest fragment (3) Biodiversity (2) Cerrado (2) Coleoptera (2) Gender (2) Green manure. (2) Lignin. (2) Organic matter (2) Pasture (2) Pitfall traps (2) Straw (2) 5.01.03.04-0 Produção de Mudas ciclagem de nutrientes (1) Aerobic mineralization (1) Agricultural labor productivity growth (1) Agricultural research (1) Agriculture (1) Agroecosystems (1) Mais... Tipo do documento Info:eu-repo/semantics/article (22) Journal article (4) Conference Paper or Presentation (3) Working or Discussion Paper (3) Fôlder / Folheto / Cartilha (INFOTECA-E) (2) Circular Técnica (INFOTECA-E) (1) Mais... Ano 2018 (2) 2016 (1) 2015 (3) 2014 (4) 2013 (2) 2012 (1) 2011 (2) 2009 (5) 2008 (1) 2007 (1) 2006 (3) 2004 (2) 2003 (2) 2002 (2) 2001 (3) 1999 (1) 1998 (1) 1997 (1) 1987 (1) Mais... País Brazil (26) United States (6) Chile (4) Argentina (1) Mexico (1) Idioma Inglês (24) Português (12) Espanhol (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 38 Primeira ... 1 2 ... Última Description of the puparium of Manotes plana (Diptera: Stratiomyidae: Pachygastrinae) from the Ilha da Marambaia, Mangaratiba, state of Rio de Janeiro, Brazil Rev. Bras. Zool. Xerez,Roberto de; Lopes,Ana Lúcia de Freitas. The puparium of Manotes plana Kertész, 1916 is described based on the exuviae of six larvae collected under the bark of a plant in early state of decomposition in the Ilha da Marambaia (23°04'15"S, 43°53'59", at sea level), state of Rio de Janeiro, Brazil. The external morphology and chaetotaxy is compared with the previously described puparium of Manotes crassimanus James, 1980. The texture and shape of the setae of M. crassimanus are plumose and some setae are claviform while M. plana are setiform. In M. plana the ventro-craneal furrow extends from the posterior region of the mouthparts until the median region of the head. In M. crassimanus, the furrow extends until the posterior third of the head. No diferrence occurs in position in the puparia of both... Tipo: Info:eu-repo/semantics/article Palavras-chave: Decomposition; Immature; Larvae; Neotropical; Soldier flies; Taxonomy. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000300024 Vultures and others scavenger vertebrates associated with man-sized pig carcasses: a perspective in Forensic Taphonomy Rev. Bras. Zool. Demo,Caroline; Cansi,Edison Rogério; Kosmann,Cecília; Pujol-Luz,José Roberto. The activity of vertebrates that feed on corpses can modify the chronology of the decomposition process and interfere with postmortem interval estimates. Further, by destroying the soft parts of the cadaver, scattering, burying or causing the disappearance of bones, it can entirely change the crime scene. In this study, we simulated a clandestine cemetery in an area of Cerrado located inside a farm in Brasília, Distrito Federal. Three domestic pigs of the size of a human of about 60 kg were placed on the ground in different periods of 2010 and 2011. We recorded four species of birds and one of mammal eating the carcasses: 1) Cathartidae: Coragyps atratus (Bechstein, 1973), Cathartes aura (Linnaeus, 1758), Sarcoramphus papa (Linnaeus, 1758); 2) Falconidae:... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Chronothanatognosis; Clandestine cemeteries; Decomposition; Necrophagy. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000500010 Dung decomposition and associated beetles in a fragmented temperate forest RChHN BUSTAMANTE-SÁNCHEZ,MARCELA A.; GREZ,AUDREY A.; SIMONETTI,JAVIER A.. Habitat fragmentation may result in changes in species number and population abundance among habitats that differ in area, structure, or edge characteristics. These changes, in turn, may result in alterations in ecosystem process such as decomposition of organic matter. Through an experimental approach, we compared the beetles assemblages associated with dung and decomposition of cow feces in a continuous portion of Maulino forest, forest fragments and in pine plantations that surround this forest and forest remnants. Abundance and richness of dung-associated beetles were lower in forest fragments compared to the continuous forest and pine plantations. However, dung decomposition was similar in these three habitats. Beetle abundance, species richness and... Tipo: Journal article Palavras-chave: Temperate forest; Fragmentation; Insects; Decomposition. Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000100009 Organic matter decomposition and microarthropod community structure in corn fields under low input and intensive management in Guaíra (SP) Scientia Agricola Rodrigues,G.S; Ligo,M.A.V; Mineiro,J.L. de C. The rate of organic matter decomposition and the structure of the communities of microarthropods were compared between two corn fields receiving contrasting agricultural management practices (low input and intensive farming). The rate of decomposition tended to be higher in the intensively managed field in the beginning of the growing season, but decreased to a level significantly lower than the observed in the low input field by the end of the growing season. This suggested that the biological community associated with the decomposition process could be negatively influenced in the intensively managed field. Analyses of the structure of microarthropod communities indicated differences between the two areas. The microarthropod populations present in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil fauna; Organic matter; Decomposition; Agroecosystems; Farming systems; Low-input agriculture. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000100010 Coleopterofauna em floresta e pastagem no norte do Paraná, Brasil, coletada com armadilha de solo Zoologia Medri,Ísis Meri; Lopes,José. The environmental transformations constitute the principal cause of changes in biodiversity. This make the comparative studies between natural and altered environments very important. This research compare the beetle fauna at the following areas: isolated forest fragment and pasture at the secondary stage of succession. Beetles were collected using four pitfall traps baited with cattle meat in each area, fortnightly from November 1998 to April 1999. A total of 17,721 individuals from 30 families of Coleóptera in forest and 6,597 individuals belanging to 32 families in pasture was collected. The Sorensen index was used to calculate similarity, and Shannon index to calculate diversity. The qualitative similarity found was 0.70 and the quantitative similarity... Tipo: Info:eu-repo/semantics/article Palavras-chave: Coleoptera; Necrophagous; Pitfall traps; Forest fragment; Pasture; Decomposition. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500010 Descrição do pupário de Sargus thoracicus Macquart (Diptera, Stratiomyidae, Sarginae) Zoologia Viana,Gustavo Glória; Xerez,Roberto de. Herein, the puparium of Sargus thoracicus Macquart, 1834 collected in decaying organic material, on the Campus of Universidade Federal Rural do Rio de Janeiro, Seropedica, Rio de Janeiro State is described. The description is based on a single larva collected and reared in laboratory till the emergence of the adult. Some biological notes on the larva are also presented. Tipo: Info:eu-repo/semantics/article Palavras-chave: Decomposition; Puparium; Sarginae; Sargus thoracicus. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600008 Scarabaeidae (Coleoptera) do Parque Estadual Mata dos Godoy e de área de pastagem, no norte do Paraná, Brasil Zoologia Medri,Ísis Meri; Lopes,José. The environmental transformations constitute the principal cause of changes in biodiversity decrease. This make the comparative studies between natural and altered environments very important. This work compare the fauna of Scarabaeidae at the following areas: isolated forest fragment and pasture at the secondary stage of succession. Scarabs beetles were collected using four pitfall traps baited with cattle meat in each habitat, fortnightly from November 1998 to April 1999. It was collected a total of 3,113 individuals from 32 species in forest and 956 individuals from 27 species in pasture. The Sorensen index was used to calculate similarity, and Shannon index to calculate diversity. The qualitative similarity found was 0.64 and the quantitative... Tipo: Info:eu-repo/semantics/article Palavras-chave: Coleoptera; Scarabaeidae; Scavengers; Pitfall traps; Forest fragment; Pasture; Decomposition. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500011 Produção e decomposição de folhedo em um trecho de Mata Atlântica de encosta no município do Guarujá, SP Acta Botanica Varjabedian,Roberto; Pagano,Sergio Nereu. A produção de folhedo e a taxa de decomposição de folhedo (k) foram estimadas, no período de 2.8.85 a 10.8.86, numa área de 1 ha de mata atlântica de encosta (60º de inclinação e altitude de 140m), no município do Guarujá (Lat. S 24º16'; Long. W 46º19'), Estado de São Paulo. A queda pluviométrica anual média é de 2050 mm e não há estação seca definida. O solo é argilo-arenoso e ácido, com pH variando entre 3 e 4. A produção anual de folhedo foi de 7925 kg/ha. A fração folhas contribuiu com 5040 kg/ha seguida pelas frações ramos (1950 kg/ha), flores (491 kg/ha), frutos (222 kg/ha) e material de origem animal (222 kg/ha). A produção de folhedo e das frações componentes foi contínua durante todo o ano. Os valores mensais de produção não revelaram nenhum... Tipo: Info:eu-repo/semantics/article Palavras-chave: Litterfall; Decomposition; Coastal Rain Forest. Ano: 1987 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300023 Does nutrient cycling differ between fragments of Atlantic Forest with distinct structural aspects? A case study in the state of Rio de Janeiro, Brazil Acta Botanica Cunha,Gláucio de Mello; Gama-Rodrigues,Antonio Carlos. In this study, we evaluate litter biomass and nutrient inputs, as well as nutrient use efficiency (NUE), in two fragments of dense montane rain forest within the Atlantic Forest Biome in the northern region of the state of Rio de Janeiro, Brazil. The total annual average litter production for the two fragments (designated M1 and M2) was 7.72 and 7.56 t ha−¹ year−¹, respectively. The annual nutrient return rate was 146.67, 4.84, 21.41, 64.93, and 17.25 kg ha−¹ year−¹ for N, P, K, Ca, and Mg, respectively. No differences in NUE were observed between the studied fragments, except for that of P. The average NUE for N, P, K, Ca, and Mg, respectively, was 51, 1426, 367, 111, and 428 in fragment M1, compared with 51, 1890, 360, 126, and 472 in fragment M2. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Decomposition; Forest fragment; Litter; Nutrient input; Nutrient use efficiency. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400015 Effects of forest structure on litter production, soil chemical composition and litter-soil interactions Acta Botanica Capellesso,Elivane Salete; Scrovonski,Kellin Luana; Zanin,Elisabete Maria; Hepp,Luiz Ubiratan; Bayer,Cimélio; Sausen,Tanise Luisa. ABSTRACT Litter production in forest ecosystems is a major indicator of primary productivity because litter helps incorporate carbon and nutrients from plants into the soil and is directly involved in plant-soil interactions. To our knowledge, few studies have investigated the relationship between species diversity and ecosystem processes in subtropical forest fragments. In this work, we determined forest structural parameters and assessed seasonal leaf litter input, leaf decomposition rate, litter quality and soil characteristics in two subtropical Atlantic Forest fragments. Litter production was greater in the native fragment with the higher species diversity (FN1). The two native fragments (FN1 and FN2) differed in basal area, volume and dominance in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Carbon; Decomposition; Phosphorus; Selection effect. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300329 Laboratory decomposition of Dalbergia nigra all. ex. benth and Eucalyptus grandis w.hill ex. maiden leaves in forest and eucalypt plantation soils Acta Botanica Rezende,Juliana L. P.; Garcia,Queila S.; Scotti,Maria Rita M. M. L.. The objective was to evaluate the decomposition of D. nigra and E. grandis leaves under laboratory conditions when incubated in soils from Atlantic Forest and from a 40-year-old eucalypt plantation for a year. The obtained values of pH in forest and eucalypt plantation soils were 5.61 and 4.47 and for aluminum 0.32 and 1.89mEqx100, respectively. A great number of microorganisms (total fungi, phosphate solubilising and cellulolytic organisms) were found in forest soil. Litterbag study revealed a higher mass loss of the leaves in forest soil in the first four months (c. 30%). In the eucalypt plantation soils loss was observed only after eight months (c. 40%). The initial contents of N and P were greater in D. nigra than in E. grandis leaves, although lignin... Tipo: Info:eu-repo/semantics/article Palavras-chave: Dalbergia; Eucalyptus; Nutrient cycling; Decomposition. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062001000300002 Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil Acta Botanica Sausen,Tanise Luisa; Schaefer,Guilherme Frederico de Paula; Tomazi,Michely; Santos,Lívia Scheunemann dos; Bayer,Cimélio; Rosa,Luís Mauro Gonçalves. Soil carbon accumulation is largely dependent on net primary productivity. To our knowledge, there have been no studies investigating the dynamics of carbon accumulation in weathered subtropical soils, especially in managed eucalyptus plantations. We quantified the seasonal input of leaf litter, the leaf decomposition rate and soil carbon stocks in an commercial plantation of Eucalyptus saligna Labill. in southern Brazil. Our goal was to evaluate, through multiple linear regression, the influence that certain chemical characteristics of litter, as well as chemical and physical characteristics of soil, have on carbon accumulation in soil organic matter fractions. Variables related to the chemical composition of litter were not associated with the soil... Tipo: Info:eu-repo/semantics/article Palavras-chave: Weathered soils; Decomposition; Soil organic matter fractions; Litter input. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200013 Decomposição e liberação de nutrientes das palhadas de milheto e milheto + crotalária no plantio direto do feijoeiro - DOI: 10.4025/actasciagron.v31i4.1356 Agronomy Teixeira, Cícero Monti; EPAMIG; Carvalho, Gabriel José de; UFLA; Andrade, Messias José Bastos de; UFLA; Silva, Carlos Alberto; UFLA; Pereira, Janser Moura; UFU. O objetivo foi avaliar a produção de fitomassa, o acúmulo e liberação de macronutrientes, e a decomposição das palhadas de milheto (Pennisetum typhoides (Burm.) Stapf) solteiro e consorciado com crotalária (Crotalaria juncea), sob a cultura do feijoeiro. O delineamento foi o de blocos casualizados, com quatro repetições, em esquema de parcelas subdivididas. As parcelas foram constituídas pelas duas palhadas; as subparcelas, pelas épocas de avaliação, ao longo do cultivo do feijoeiro (0, 8, 16, 24, 40, 56 e 72 dias após a semeadura). Os resíduos coletados foram secos em estufa de circulação forçada de ar, a 65ºC, até atingirem massa constante, para a determinação da matéria seca remanescente. Posteriormente, foram moídos e encaminhados para laboratório,... Palavras-chave: 5.01.03.04-0 Produção de Mudas ciclagem de nutrientes; Litter-bags; Decomposição; Modelos não-lineares; Consórcio gramínea x leguminosa. 5.01.01.03-0 nutrient cycling; Litter bags; Decomposition; Non-linear models; Grass x leguminous intercropping.. Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1356 Casca de arroz e palhada de soja na compostagem de carcaças de frangos de corte - doi: 10.4025/actascianimsci.v33i1.10824 Animal Sciences Abreu, Paulo Giovanni de; Embrapa Suínos e Aves; Paiva, Doralice Pedroso de; Embrapa Suínos e Aves; Abreu, Valeria Maria Nascimento; Embrapa Suínos e Aves; Coldebella, Arlei; Embrapa Suínos e Aves; Cestonaro, Taiana; Universidade do Contestado -UnC. Avaliou-se a atuação da casca de arroz e da palhada de soja como substrato para compostagem de carcaça de frangos de corte, observando a degradação dos dois substratos e das carcaças pelo monitoramento da temperatura, peso das carcaças e dos substratos e análise físico-química do produto final. As câmaras foram montadas com carcaças de 10 aves recém abatidas, com quatro repetições no tempo. Instalou-se em cada câmara um termopar para registro da temperatura. O substrato e as carcaças foram pesadas separadamente, no início, aos 15 e aos 30 dias de compostagem. Ao final de cada período, foram realizadas análises físico-química de amostras de cada câmara, avaliando-se o pH e os teores de matéria seca, cinzas, P, N, K, Cu, Zn, Mn, Fe e carbono orgânico.... Palavras-chave: Composição físico-química; Decomposição; Pilhas de compostagem physiochemical composition; Decomposition; Composting piles. Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10824 DECOMPOSITION, DYNAMIC OF INORGANIC ELEMENTS AND MICROBIAL COLONIZATION OF ARARIBÁ (Centrolobium tomentosum Guill. ex Benth) LEAVES ON LATOSOLS OF BRAZILIAN ATLANTIC FOREST Agricultura Técnica Marques,Márcia S.; Sá,Nadja M.; Scotti,María R.. Leguminous trees are being planted in order to establish restoration units in the Brazilian Atlantic forest ecosystem. The success of the establishment depends on the growth, productivity of plants and litter decomposition rates. The objective of this study was to investigate the decomposition of araribá (Centrolobium tomentosum Guill. Ex Benth) leaves, at two sites. Site 1 was an experimental plantation of the native species C. tomentosum, which was inoculated with rhizobia plus mycorrhizal fungi, and Site 2 was a eucalyptus (Eucalyptus grandis W. Hill ex Maiden) forest. The leaf litter of C. tomentosum was incubated for 120, 240 and 360 days in both sites. The decomposition rate and dynamic of mineralization of the organic matter and the nutrients K, Mg,... Tipo: Journal article Palavras-chave: Decomposition; Eucalyptus sp.; Microbial colonization; Tropical forest; Soil fertility. Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072003000100008 Experimental assessment of temperature increase and presence of predator carcass changing the response of invertebrate shredders Biota Neotropica Navarro,Fernanda Keley Silva Pereira; Rezende,Renan de Souza; Gonçalves Júnior,José Francisco. The role of the invertebrate shredders in leaf decomposition process in tropical lotic ecosystems has been explored only recently. In addition to the influence of the quality of litter and the temperature, the risk of predation generally results in changes on the survival and behavior of invertebrate shredders. The aim of this study was to observe the responses of the invertebrate shredders to different species of leaf litters (Experiment 1: Talauma ovata and Inga laurina ; Experiment 2: Talauma ovata, Inga laurina and Richeria grandis ) under gradual temperature rise (24 °C, 26 °C, 28 °C, 30 °C, 32 °C), in the presence (Experiment 2) and absence (Experiment1) of fish (Astyanax sp.) carcasses, as well as to observe the possible consequences of the leaf... Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding activity; Global warming; Decomposition. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400028 Aspects of the uptake of dissolved oxygen in Cabiúnas and Imboassica Lagoons (Macaé, RJ) BABT Brum,Paulo R.; Farjalla,Vinicius F.; Gonçalves Jr.,José F.; Santos,Anderson M. dos; Pôrto,Maurício T.; Vieira,Elisa D. R.; Ferreira,Flávia M.; Bianchini Jr.,Irineu. In this work, we describe qualitative and quantitative aspects of the cycling of detritus of aquatic macrophytes and carbohydrates in two coastal lagoons of the northeastern part of the State of Rio de Janeiro. Samples of water of the Imboassica and Cabiúnas lagoons were enriched with sucrose. Samples of water of the Cabiúnas lagoon were also utilized to arrange mineralization chambers with fragments of three species of aquatic macrophytes found in these lagoons (Typha domingensis, Potamogeton stenostachys and Nymphaea ampla). Following that, the bottles were aerated and incubated (in the laboratory) for a period of 8 days. The concentrations of dissolved oxygen, the pH, the electrical conductivity and the temperature were daily measured. The anaerobic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Decomposition; Aerobic mineralization; Dissolved oxygen; Coastal lagoons; Aquatic macrophytes. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000400008 Loss of weight and concentration of carbon, nitrogen, and phosphorus during decomposition of Eichhornia azurea in the floodplain of the upper Paraná river, Brazil BJB PAGIORO,T. A.; THOMAZ,S. M.. Leaf packs of the aquatic macrophyte Eichhornia azurea were used to experimentally evaluate changes in mass, carbon, nitrogen, and phosphorus concentrations, and C:N ratios during initial stages of decomposition in two different environments, the Paraná River and Garças Lake. Analysis of weight loss showed relatively slow decomposition rates in both environments (0.0047 d-1 and 0.0048 d-1 respectively). Over a 45-day period we observed significant changes (p < 0.05) in concentrations of carbon, nitrogen, and phosphorus, but only carbon differed between the environments (F = 10.479; p = 0.03). Therefore we concluded that detritus behaved similarly during decomposition, since intrinsic characteristics of the environments affected only the carbon... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eichhornia azurea; Decomposition; Floodplain; Paraná river. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000400007 Registros recuperados: 38 Primeira ... 1 2 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco