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	Provedor de dados ArchiMer (1) Autor Aanei, Carmen M. (1) Abid, Muhammad Bilal (1) Abramowitz, Matthew K. (1) Abu-zaid, Ahmed (1) Adamo, Vincenzo (1) Adeyemo, Adebolajo A. (1) Afnan, Masoud (1) Agarabi, Cyrus (1) Aggelidou, Maria (1) Ahmad, Haroon (1) Ahmad, Rafi (1) Aizat, Wan M. (1) Ajani, Penelope A. (1) Akinwumi, Sayo A. (1) Al-farha, Abd A. (1) Al-lawama, Manar (1) Al-owaifeer, Adi M. (1) Al-riyami, Arwa Z. (1) Alanio, Alexandre (1) Alaux, Cedric (1) Mais... Tipo do documento Text (1) Ano 2019 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 39 Primeira ... 1 2 ... Última Considerações limnológicas sobre um lago da planície de inundação amazônica (lago Catalão – Estado do Amazonas, Brasil) - DOI: 10.4025/actascibiolsci.v31i4.4641 Biological Sciences Almeida, Fabiane Ferreira de; Instituto Nacional de Pesquisas da Amazônia - Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior; Melo, Sérgio; Instituto Nacional de Pesquisas da Amazônia. Este estudo aborda a variação temporal (sazonal, semanal e nictemeral) e espacial de algumas variáveis limnológicas na região limnética do lago Catalão, um lago da planície de inundação do rio Amazonas. Foram analisados os valores de temperatura, zona eufótica, zona de mistura, condutividade elétrica, oxigênio dissolvido, transparência, nitrogênio e fósforo total, amostrados em quatro estações, em escala semanal, durante um mês no período de seca de 2006 e um mês no período de cheia de 2007. Regressões simples foram realizadas para testar a hipótese da homogeneização de ambientes aquáticos em função da inundação. Foram analisados, também, os valores de temperatura, oxigênio dissolvido e condutividade elétrica em um perfil vertical ao longo de um ciclo... Palavras-chave: 2.05.02.00-1 variáveis limnológicas; Variação nictemeral; Planície de inundação; Variação sazonal; Pulso de inundação; Amazônia Brasileira Ecologia de Ecossistemas (Limnologia) limnological variables; Diel variation; Flood plain lake; Seasonal variation; Flood pulse; Brazilian Amazon. Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4641 Diurnal and seasonal variability in bird counts in a forest fragment in southeastern Brazil Zoologia Antunes,Alexsander Z.. Diurnal variation in detection can influence bird census results. I measured variation in daily and seasonal detections of birds in a forest fragment at Barreiro Rico ranch, Anhembi, state of São Paulo. Birds were recorded on transects of unlimited distance, sampled one day per month, dawn to dusk, between December 2000 and March 2001 (rainy season) and between May and August 2001 (dry season). Significant daily variation in detection occurred during the rainy season, with most detections between dawn and 9 h. In the dry season detections declined for total numbers of individuals and species and most detections occurred during late morning and mid afternoon. Detection patterns might reflect seasonal variation in bird behavior rather than seasonal variation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Census; Detection; Seasonal variation; Transects. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200011 ÍNDICE TECNOLÓGICO E SAZONALIDADE DO MARACUJÁ NO EXTREMO SUL DA BAHIA AgEcon Araujo, Antonio Carlos; Khan, Ahmad Saeed; Silva, Lucia Maria Ramos; Araujo, Leonardo Ventura. A cultura do maracujá está em fase de crescimento no Extremo Sul da Bahia, o que contribuiu para que o Estado da Bahia tenha alcançado a posição de maior produtor dessa fruteira. Esta alavancagem do maracujá na região se deve às condições edafo-climáticas favoráveis e à necessidade de diversificar a economia em virtude da crise da cacauicultura. A sustentabilidade da cultura do maracujá depende das tecnologias e informações que possam ser disponibilizados aos produtores e que sejam gerados na própria região, a exemplo da análise do índice tecnológico da cultura e da sazonalidade dos preços, os quais são os objetos do presente trabalho. O estudo ficou concentrado nos municípios de Alcobaça, Prado e Teixeira de Freitas por serem os maiores produtores da... Tipo: Conference Paper or Presentation Palavras-chave: Maracujá; Índice Tecnológico; Sazonalidade; Passion fruit; Technological Index; Seasonal variation; Crop Production/Industries. Ano: 2008 URL: http://purl.umn.edu/109799 Seasonal abundance of the Neotropic Cormorant (Phalacrocorax brasilianus) at Lagoa dos Patos estuary, Southern Brazil Hornero Barquete,Viviane; Vooren,Carolus Maria; Bugoni,Leandro. Censuses of the Neotropic Cormorant (Phalacrocorax brasilianus) were carried out at a power tower near the mouth of Lagoa dos Patos estuary, southern Brazil, from November 2001 to October 2002. At this major roosting site, a total of 309 counts over 47 days of census were performed to estimate monthly variation in the abundance of the Neotropic Cormorant. The highest abundance occurred in January (1390 birds), and the lowest in May (117 birds). The tower was a roosting site for cormorants at night, which arrived around 15:30 h onward, with numbers increasing near dusk. Birds preferentially used the lower levels of the tower (including the concrete base and levels 1 and 2) throughout the year and this preference could be partially due to strong winds in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundance; Neotropic Cormorant; Phalacrocorax brasilianus; Roosting site; Seasonal variation. Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072008000100003 Maintaining rear-fanged snakes for venom production: an evaluation of mortality and survival rates for Philodryas olfersii and P. patagoniensis in captivity J. Venom. Anim. Toxins incl. Trop. Dis. Braz,HB; Rocha,MMT; Furtado,MFD. This study evaluates the mortality and average survival rates of captive female Philodryas olfersii and Philodryas patagoniensis snakes maintained for venom production. Also, two factors likely to reduce captive survival were studied - body condition at admission and seasonality. Mortality peaks occurred during the second month in captivity. More than half the individuals were dead at the end of the third month. This suggests that the first three months in captivity are the most critical in terms of survival and adaptation. Females collected and admitted during spring and summer lived less time than those collected in autumn and winter. As gravidity and egg-laying occur during spring and summer, we suggest that the lower survival rates in these seasons may... Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal husbandry; Snake venom; Seasonal variation; Body mass index. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000200006 On the seasonal variations of salinity of the tropical Atlantic mixed layer ArchiMer Camara, I.; Kolodziejczyk, Nicolas; Mignot, Juliette; Lazar, Alban; Gaye, Amadou T.. The physical processes controlling the mixed layer salinity (MLS) seasonal budget in the tropical Atlantic Ocean are investigated using a regional configuration of an ocean general circulation model. The analysis reveals that the MLS cycle is generally weak in comparison of individual physical processes entering in the budget because of strong compensation. In evaporative regions, around the surface salinity maxima, the ocean acts to freshen the mixed layer against the action of evaporation. Poleward of the southern SSS maxima, the freshening is ensured by geostrophic advection, the vertical salinity diffusion and, during winter, a dominant contribution of the convective entrainment. On the equatorward flanks of the SSS maxima, Ekman transport mainly... Tipo: Text Palavras-chave: Salinity; Seasonal variation; Tropical Atlantic; Vertical mixing. Ano: 2015 URL: https://archimer.ifremer.fr/doc/00624/73563/73200.pdf Seasonal variation in fish larvae at the entrance of Guanabara Bay, Brazil BABT Castro,Marcia S. de; Bonecker,Ana Cristina Teixeira; Valentin,Jean L.. Studies were carried out to find out qualitative and quantitative temporal variations in fish larvae to relate seasonal, diurnal and tidal cycles to the density of larvae. Sampling was performed at one station, during two three-day periods in September 1995 and March 1996. Samples were collected during ebb and flood tides,in oblique hauls using a bongo net of 500 µm mesh size. A total of 42 taxa were identified. The families Engraulidae (Cetengraulis edentulus, Anchoa lyolepis) and Clupeidae (Harengula jaguana) had high mean densities and dominated both periods. Higher larval mean densities occurred in March, a period of relatively high temperatures and low salinities. The diurnal pattern of larval abundance consisted of high densities at night and low... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish larvae; Seasonal variation; Tidal cycle; Diurnal variation; Coastal bay; Guanabara Bay. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100016 Recommendations for monitoring avian populations with point counts: a case study in southeastern Brazil Pap. Avulsos de Zool. (São Paulo) Cavarzere,Vagner; Moraes,Gabriel Parmezani; Roper,James Joseph; Silveira,Luís Fábio; Donatelli,Reginaldo José. In the northern hemisphere, bird counts have been fundamental in gathering data to understand population trends. Due to the seasonality of the northern hemisphere, counts take place during two clearly defined moments in time: the breeding season (resident birds) and winter (after migration). Depending on location, Neotropical birds may breed at any time of year, may or may not migrate, and those patterns are not necessarily synchronous among species. Also in contrast to the northern hemisphere, population trends and the impact of rapid urbanization and deforestation are unknown and unmonitored. Throughout one year, we used point counts to better understand temporal patterns of bird species richness and relative abundance in the state of São Paulo,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bird surveying method; Breeding Bird Survey; Christmas Bird Count; Methodological protocols; Pan-European Common Bird Monitoring Scheme; Temporal variation; Seasonal variation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013003200001 Annual and seasonal dynamics of deep-sea megafaunal epibenthic communities in Barkley Canyon (British Columbia, Canada): a response to climatology, surface productivity and benthic boundary layer variation ArchiMer Chauvet, Pauline; Metaxas, Anna; Hay, Alex E.; Matabos, Marjolaine. Understanding the impact of the environment on temporal trends in the composition and abundance of deep-sea species is essential for forecasting evolution of the community in the context of climate change. The recent development of deep-sea observatories enables multidisciplinary studies of long duration and high temporal resolution. We used a platform at the Ocean Networks Canada NEPTUNE Observatory located in the axis of Barkley Canyon between June 2012 and January 2015 to: (1) characterize the megabenthic community and the environmental conditions in the canyon; (2) investigate temporal patterns in the faunal community; and (3) determine the influence of environmental conditions on the observed patterns. The megafaunal epibenthic community, which... Tipo: Text Palavras-chave: Deep-sea observatory; Inter-annual variation; Seasonal variation; Deep-sea canyon; Zoobenthos; Oxygen minimum zone; Canada; British Columbia; Barkley Canyon. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00436/54715/56152.pdf Diet of the ichthyofauna associated with marginal vegetation of a mangrove forest in southeastern Brazil Iheringia, Sér. Zool. Corrêa,Michéle de O. D. A.; Uieda,Virgínia S.. The objective of this study was to analyze the diet of fish species that use the mangrove vegetation for shelter and feeding in a river southeastern Brazil. The fieldwork, including collecting and underwater observations, was carried out in the dry (July and August 2004) and in the rainy season (February and March 2005) in order to assess the existence of seasonal variation in the diets. Seven kinds of food items were consumed, two of plant origin and five of animal origin. Crustaceans predominated in the diet of most species, either in the form of unidentified fragments or discriminated in eight groups. The predominance of species using mainly a single food source (crustaceans, principally Ostracoda and Tanaidacea) and the existence of seasonal variation... Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding habit; Seasonal variation; Ontogenetic variation; Niche breadth. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000400020 Insetos capturados com armadilha Malaise na Ilha do Mel, Baía de Paranaguá, Paraná, Brasil: I. composição de ordens Zoologia Dutra,Renato R.C.; Marinoni,Renato C.. Two Malaise traps (TOWNES 1972 model) were installed on an island (the "Ilha do Mel") in the Bay of Paranaguá, from September, 1988 to August, 1989. at two sites denominated "Fortaleza" and "Praia Grande", for collection of insects. Apart from collection of insects (Fortaleza: 62.924 individuals; Praia Grande: 38.868 individuais), graphical analysis were limited to those Orders wich occurred concomitantly at the two collection points in ali months: Collembola. Hemiptera. Homoptera. Coleoptera. Lepidoptera. Diptera and Hymenoptera. It was concluded that the Malaise trap is selective for Diptera. Hymenoptera and Lepidoptera. and proved to be efficient in measuring abundance, in obtaining information regarding the seasonal variation of insects, and in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Insect survey; Paraná; Seasonal variation. Ano: 1994 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000200006 Daily activity and microhabitat use of sympatric lizards from Serra do Cipó, southeastern Brazil Iheringia, Sér. Zool. Filogonio,Renato; Del Lama,Fernanda S.; Machado,Leonardo L.; Drumond,Michelle; Zanon,Isabella; Mezzetti,Nathália A.; Galdino,Conrado A. B.. We studied the influence of seasonality on the daily activity pattern and microhabitat use of three sympatric lizard species, Cnemidophorus ocellifer Spix, 1825 (Teiidae), Tropidurus montanus Rodrigues, 1987 and Eurolophosaurus nanuzae (Rodrigues, 1981) (Tropiduridae), in an area of campos rupestres (rocky fields) habitat in state of Minas Gerais, Brazil. Cnemidophorus ocellifer exhibited low density and activity concentrated within the hottest hours of the day, and was observed mainly on shaded rocks. Tropidurus montanus and E. nanuzae had similar activity patterns that did not vary between seasons. Activity of T. montanus was related to environmental temperatures. However, we did not find such relationships for E. nanuzae during the dry season. Both T.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Activity patterns; Seasonal variation; Cnemidophorus ocellifer; Tropidurus montanus; Eurolophosaurus nanuzae. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400008 Morphology and ecology of the planktonic diatom Palmerina hardmaniana (Greville) Hasle in southern Brazil Biota Neotropica Garcia,Marinês; Odebrecht,Clarisse. The diatom Palmerina hardmaniana (Greville) Hasle presents a wide geographical distribution in neritic tropical and subtropical regions. In the present work we analyzed plankton samples collected monthly between 1995 and 2007 at the surf zone of Cassino Beach, RS (32° 12' S and 52° 10' W), and in winter 2005 and summer 2007 at the continental shelf and slope in southern Brazil, Santa Marta Grande Cape, SC and Albardão-Chuí, RS regions (28° 23'-33° 07' S and 48° 41'-52° 26' W). We present the detailed morphological description of P. hardmaniana, and the first study including electron scanning microscope observations for material from the southwestern Atlantic Ocean. The morphometric data confirm the identity of the species in all its ultra-structural... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytoplankton; Seasonal variation; Biogeography; Ultra-structure. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200009 Dieta y disponibilidad de forraje del vendo cola blanca (Odocoileus virginianus thomasi) en Campeche, México. Colegio de Postgraduados Granados Rivera, Lorenzo Danilo. En el estado de Campeche no existen estudios sobre la composición botánica de la dieta de Odocoileus virginianus; de 1999 al 2010 se conformaron 122 Unidades de Manejo Ambiental, ocupando una superficie de 761,690 ha (SEMARNAT 2011), es decir, el 13 % del territorio Campechano realiza algún tipo de aprovechamiento de fauna silvestre, incluyendo al venado cola blanca. Los objetivos fueron estimar la composición botánica de la dieta y su cambio estacional, la disponibilidad de forraje y la capacidad de carga de Odocoileus virginianus thomasi en Campeche, México. El trabajo se realizó de octubre 2010 a mayo 2012 en el campo experimental del Colegio de Postgraduados, Campus Campeche. La composición botánica de la dieta se determinó mediante análisis... Palavras-chave: Hábitat tropical; Variación estacional; Dieta; Cérvido silvestre; Capacidad de carga; Tropical habitat; Seasonal variation; Diet; Cervid wild; Carrying capacity; Ganadería; Maestría. Ano: 2013 URL: http://hdl.handle.net/10521/1904 Comparison of C and N stable isotope ratios between surface particulate organic matter and microphytoplankton in the Gulf of Lions (NW Mediterranean) ArchiMer Harmelin Vivien, M; Loizeau, Veronique; Mellon-duval, Capucine; Beker, B; Arlhac, D; Bodiguel, Xavier; Ferraton, Franck; Hermand, R; Philippon, Xavier; Salen Picard, C. Carbon and nitrogen stable isotope ratios of particulate organic matter (POM) in surface water and 63-200 mu m-sized microphytoplankton collected at the fluorescence maximum were studied in four sites in the Gulf of Lions (NW Mediterranean), a marine area influenced by the Rhone River inputs, in May and November 2004. Some environmental (temperature, salinity) and biological (POM, Chlorophyll a and phaeopigments contents, phytoplankton biomass and composition) parameters were also analysed. Significantly different C and N isotopic signatures between surface water POM and microphytoplankton were recorded in all sites and seasons. Surface water POM presented systematically lower delta C-13 (similar to 4.2 parts per thousand) and higher delta N-15 (similar to... Tipo: Text Palavras-chave: Seasonal variation; PON/Chl a; C/N ratio; Stable isotopes; Fluorescence maximum; Phytoplankton composition; Particulate organic matter. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-5919.pdf Variação sazonal de alguns parâmetros físicos e químicos em três rios pertencentes a uma bacia de drenagem na região centro-sul do Estado do Paraná, Sul do Brasil - DOI: 10.4025/actascibiolsci.v30i4.5873 Biological Sciences Krupek, Rogério Antônio; UNESP/Assis; Branco, Ciro Cesar Zanini; UNESP/Assis; Peres, Cleto Kaveski; UNESP/Assis. Três rios de pequeno porte pertencentes à bacia do rio das Pedras, localizada na região centro-sul do Estado do Paraná, foram estudados com o objetivo de se analisar o padrão de variação sazonal de alguns parâmetros físicos e químicos da água. Os trabalhos de campo foram realizados no período de abril de 2004 a março de 2005 por meio de amostragens mensais. Os seguintes parâmetros limnológicos foram avaliados: temperatura da água, condutividade específica, oxigênio dissolvido, pH, turbidez, velocidade da correnteza e profundidade. As águas da bacia do rio das Pedras mostraram características muito peculiares, apresentando um padrão sazonal típico para algumas das variáveis limnológicas estudadas. A Análise de Variância (Anova) mostrou diferenças... Palavras-chave: Bacia de drenagem; Riacho; Variação sazonal; Variáveis físicas e químicas drainage basin; Stream; Seasonal variation; Physical and chemical variables.. Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5873 Three-year study to assess human enteric viruses in shellfish ArchiMer Le Guyader, Soizick; Haugarreau, Larissa; Miossec, Laurence; Dubois, Eric; Pommepuy, Monique. The main pathogenic enteric viruses able to persist in the environment, such as hepatitis A virus (HAV), Norwalk-like virus (NLV), enterovirus (EV), rotavirus (RV), and astrovirus (AV), were detected by reverse transcription-PCR and hybridization in shellfish during a 3-year study. Oyster samples (n = 108), occasionally containing bacteria, were less frequently contaminated, showing positivity for AV (17%), NLV (23%), EV (19%), and RV (27%), whereas mussel samples, collected in areas routinely impacted by human sewage, were more highly contaminated: AV (50%), HAV (13%), NLV (35%), EV (45%), and RV (52%). Sequences obtained from HAV and NLV amplicons shelved a great variety of strains, especially for NLV (strains close to Mexico, Snow Mountain Agent, or... Tipo: Text Palavras-chave: Molecular technique; Seasonal variation; Human pathology; Viral contamination; Shellfish; Enteric virus. Ano: 2000 URL: https://archimer.ifremer.fr/doc/00507/61879/65953.pdf Three-year study to assess human enteric viruses in shellfish ArchiMer Le Guyader, Soizick; Haugarreau, Larissa; Miossec, Laurence; Dubois, Eric; Pommepuy, Monique. The main pathogenic enteric viruses able to persist in the environment, such as hepatitis A virus (HAV), Norwalk-like virus (NLV), enterovirus (EV), rotavirus (RV), and astrovirus (AV), were detected by reverse transcription-PCR and hybridization in shellfish during a 3-year study. Oyster samples (n = 108), occasionally containing bacteria, were less frequently contaminated, showing positivity for AV (17%), NLV (23%), EV (19%), and RV (27%), whereas mussel samples, collected in areas routinely impacted by human sewage, were more highly contaminated: AV (50%), HAV (13%), NLV (35%), EV (45%), and RV (52%). Sequences obtained from HAV and NLV amplicons shelved a great variety of strains, especially for NLV (strains close to Mexico, Snow Mountain Agent, or... Tipo: Text Palavras-chave: Molecular technique; Seasonal variation; Human pathology; Viral contamination; Shellfish; Enteric virus. Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-1363.pdf Dairy Product Manufacturing Costs at Cooperative Plants AgEcon Ling, K. Charles. Cost data are summarized for 14 plants manufacturing cheese, butter, and powder and average costs are presented for each product. Average cost curves are estimated for each plant. The scale of plant for least-cost operations is identified for plants of each product type. Plant capacity utilization and seasonal volume variation and their impacts on manufacturing cost are delineated. Tipo: Report Palavras-chave: Cooperatives; Dairy; Average cost curve; Productivity; Capacity utilization; Seasonal variation; Economies of scale; Agribusiness. Ano: 1983 URL: http://purl.umn.edu/51567 CONSTRUÇÃO DE UM CALENDÁRIO DE COMERCIALIZAÇÃO DE PRODUTOS HORTIFRUTIGRANJEIROS NO ATACADO EM GOIÁS AgEcon Machado, Andre Grossi; Figueiredo, Reginaldo Santana; Neto, Odilon Jose De Oliveira. O presente trabalho tem como objetivo analisar o padrão de variação sazonal dos preços de hortifrutigranjeiros comercializados no atacado em Goiás, e com isso, subsidiar o processo de construção de um calendário de comercialização para o CEASA-GO. O conhecimento da variação sazonal de preços de hortifrutigranjeiros, que são produtos caracterizados por uma grande variabilidade no comportamento de preços e quantidade ofertada ao longo do ano, pode contribuir para evitar desperdícios de alimentos e danos financeiros ao produtor e consumidor, na medida em que facilita a programação da produção e do consumo. Para a determinação do padrão de variação sazonal, utilizou-se o método da média geométrica móvel centralizada. Para 44 produtos selecionados a análise... Tipo: Conference Paper or Presentation Palavras-chave: Variação sazonal; Preços; Hortifrutigranjeiros; Atacado; Calendário de comercialização; Seasonal variation; Prices; Perishable foods; Wholesale; Commercialization calendar; Goias; Brazil; Crop Production/Industries. Ano: 2008 URL: http://purl.umn.edu/112749 Registros recuperados: 39 Primeira ... 1 2 ... Última

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