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	Provedor de dados Anais da ABC (AABC) (1) Autor AUER,CELSO G. (1) CUNICO,MIRIAM M. (1) GALETTI,FÁBIO C. (1) MIGUEL,MARILIS D. (1) MIGUEL,OBDULIO G. (1) SILVA,CÉLIO L. (1) SOUZA,ANA OLÍVIA DE (1) TREBIEN,HERBERT A. (1) Mais... Palavra-chave Analgesic (1) Anesthetic (1) Antimycobacterial (1) Ottonia martiana (1) Piperaceae (1) Piperovatine (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Ano 2015 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 155 Primeira ... 1 2 3 4 5 6 7 8 ... Última Modelos matematicos de simulacao e a dinamica populacional de rebanho bovino. Infoteca-e AFFIN, O. A. D.; SANTOS, N. A. dos; BARCELLOS, J. M.. Tipo: Folhetos Palavras-chave: Agropecuaria; Simulation; Bovino; Dinâmica Populacional; Modelo Matemático; Pesquisa; Simulação; Agriculture; Cattle; Research; Mathematical models; Population dynamics. Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549101 Modélisation biophysique pour la prévision du recrutement ArchiMer Allain, Gwenhael. Exploited fish populations are dependent on recruitment (i.e. size of the new year class) to sustain their abundance. Recruitment variations are related to hydroclimatic variations and may accentuate the detrimental effects of fishing. Recruitment prediction requires accurate fisheries oceanographic tools, which are expected to be more reliable than large-scale correlation analyses between fish abundance and climate variables. Recruitment is the result of the integration over a season and large oceanic areas of processes affecting larval survival, which are dependent on small-scale mechanisms. Hydrodynamic models are a tool to perform this integration. This thesis aims at exploring and modelling physical-biological interaction mechanisms in order to... Tipo: Text Palavras-chave: Anchovy; Upwelling; Turbulence; Retention; Fisheries management; Population dynamics; Stock environment interaction; Stock recruitment relation; Scale integration; Individual based models; Survival; Growth; Otolith; Physical biological interactions; Prediction; Recruitment; Turbulence; Rétention; Méso échelle; Intégration des échelles; Modèle de survie; Modèle de ponte; Modèles individu centrés; Modèles de corrélation; Modèles stochastiques; Juvéniles; Larves; Otolithe; Modèle de croissance; Interactions physique biologie; Prévision; Recrutement. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/these-5.pdf Application of deterministic model of isothermals for population dynamics of Synthesiomyia nudiseta (Diptera, Muscidae) BJB ALMEIDA,J. R. de; OLIVEIRA,S. G. de; BORGES,I. L.; D'ALMEIDA,J. M.. The isothermal deterministic model adherence was studied to evaluate the population dinamic of Synthesiomyia nudiseta (Diptera, Muscidae). The linear form of equation obtained for the experiments in the several phases, were for Egg: 1/D = -0.18 + 0.02 . T; Larva: 1/D = -0.028 + 0.01. T; Pupa: 1/D = -0.069 + 0.01 . T; and Adult: 1/D = -0.4178 + 0.02 . T. In function of temperature, S. nudiseta can present from 4.18 to 8.95 and from 4.91 to 8.99 generations per year, when calculated through the equations of development and through the simulations, respectively. And the higher the temperature the larger the generation number. Through variance analysis it was verified the significance for the regression equations in relation to the annual generation number... Tipo: Info:eu-repo/semantics/article Palavras-chave: Deterministic model; Population dynamics; Synthesiomyia nudiseta; Diptera. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100018 Dinámica poblacional de la langosta Panulirus argus (Latreille, 1804) OceanDocs Alzugaray Martínez, Romina; Puga Millán, Rafael. La región suroriental de Cuba es la segunda zona en aportes a los desembarques nacionales de langosta, Panulirus argus. Esta zona, al igual que el resto del país, presentó las mayores capturas a mediados de los años 80, decreciendo posteriormente hasta promediar en los últimos años menos de 1 000 t. Con el objetivo de caracterizar la dinámica de la población de langosta y del esfuerzo pesquero aplicado en esta región, se analizó información sobre captura, esfuerzo pesquero y composición por tallas de las capturas de langosta. Mediante técnicas de Análisis Secuencial de Poblaciones, se demuestra que en los últimos años ha ocurrido una disminución del número de individuos de la población de langosta, de la biomasa y del reclutamiento, en relación con la... Tipo: Journal Contribution Palavras-chave: Lobster fisheries; Population dynamics; Fishery biology. Ano: 2010 URL: http://hdl.handle.net/1834/4185 Population ecology of small rodents and marsupials in a semi-deciduous tropical forest of the southeast Pantanal, Brazil Rev. Bras. Zool. Andreazzi,Cecilia S. de; Rademaker,Vitor; Gentile,Rosana; Herrera,Heitor M.; Jansen,Ana M.; D'Andrea,Paulo S.. The Pantanal is a South American biome characterized by extensive plains and stark environmental seasonality. Several habitats are subject to annual flooding, forcing small mammal species to aggregate in dry forest patches, which most likely influences their population dynamics and life history strategies. In order to investigate the seasonal influence on the life history traits of these small mammals, we conducted a 2-year mark-recapture study in the southeastern region of the Brazilian Pantanal (Nhecolândia) and analyzed the population dynamics of the most abundant small mammal species with the jackknife estimator. A trapping effort of 21,560 trap-nights resulted in 615 individuals in 1,171 captures (success = 5.43%). Three species of rodents - Oecomys... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gracilinanus agilis; Oecomys mamorae; Population dynamics; Seasonality; Small mammal; Thrichomys pachyurus. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000600009 Ecologia populacional de especies arboreas na estacao ecologica do Panga (Uberlandia-MG). Infoteca-e AQUINO, F. de G.; OLIVEIRA, M. C. de; RIBEIRO, J. F.; SCHIAVINI, I.. Tipo: Folhetos Palavras-chave: ECFLOR100; Acacia glomerosa; Uberlandia; Minas Gerais; Brasil; Species; Plant population; Growth; Anadenanthera Macrocarpa; Árvore; Biodiversidade; Crescimento; Cerrado; Dinâmica Populacional; Ecologia Vegetal; Espécie; Mortalidade; População de Planta; Brazil; Biodiversity; Mortality; Population dynamics; Plant ecology; Trees. Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/548581 Population biology of the crab Armases angustipes (Crustacea, Decapoda, Sesarmidae) at Brazilian tropical coast Iheringia, Sér. Zool. Araújo,Marina de Sá Leitão C. de; Tenório,Deusinete de O.; Castiglioni,Daniela da S.. The semi terrestrial crabs are important elements of the fauna of coastal regions. The aim of this study was to analyze the population structure of Armases angustipes (Dana, 1852) at estuaries of the Ariquindá River, considered a non impacted area, and Mamucabas River, considered a few impacted area, on the south coast of state of Pernambuco, Brazil. The species occurred in all months of the year. The number of individuals per month varied, being higher in the months of transition between the seasons. This is probably due to significant seasonal variations of air and burrow temperature and burrow salinity. There was no sexual dimorphism in size of A. angustipes in the mangrove of Ariquindá River, but males were larger than females in the mangrove of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Population dynamics; Reproductive period; Sesarmid. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000200004 Ocorrência de insetos-pragas e de seus predadores em sistemas integrados de produção de soja. Infoteca-e AVILA, C. J.; SOUZA, E. C. S.. Tipo: Folhetos Palavras-chave: Integração lavoura-pecuária; Integração lavoura-pecuária-floresta; Plant pest; No tillage; Crop-livestock integration; Entomologia; Dinâmica Populacional; Plantio Direto; Praga de Planta; Population dynamics. Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1074399 Biologie et dynamique des populations d’Anchois (Engraulis encrasicolus) des côtes mauritaniennes. OceanDocs Ba, I.S.. Résumé: Cette étude traite de la biologie et de la dynamique des populations d’anchois (Engraulis encrasicolus) des côtes mauritaniennes. Après un bref rappel des conditions climatiques et hydrobiologiques de la région, une tentative de mise en évidence de race ou population locale a montré que cette espèce pourrait être rattachée à la population méridionale atlantique du Golfe de Gascogne. En Mauritanie, l’Anchois n’est pêché que de façon accessoire. Les captures les plus abondantes sont réalisées de mai à Septembre essentiellement dans la zone nord où l’on observe un upwelling permanent. Pour évaluer la taille du stock, des estimations de biomasse par échointégration ont été effectuées, mais celles-ci n’ont pas permis de donner un ordre de grandeur... Tipo: Theses and Dissertations Palavras-chave: Anchovy fisheries; Upwelling; Population dynamics; Mortality. Ano: 1988 URL: http://hdl.handle.net/1834/676 Coastal phytoplankton community dynamics and coexistence driven by intragroup density-dependence, light and hydrodynamics ArchiMer Barraquand, F.; Picoche, C.; Maurer, Daniele; Carassou, L.; Auby, Isabelle. Phytoplanktonic communities maintain a high diversity in a seemingly homogeneous environment, competing for the same set of resources. Many theories have been proposed to explain this coexistence despite likely competition, such as contrasted responses to temporal environmental variation. However, theory has developed at a faster pace than empirical evaluation using field data, which requires inferring drivers of community dynamics from observational time series. Here, we combine autoregressive models with a data set spanning more than 20 years of phytoplankton counts every two weeks, together with nutrients and physical variables. By comparing models dominated by nutrients or physical variables (hydrodynamics and climate), we first explore which abiotic... Tipo: Text Palavras-chave: Competition; Diatoms; Dinoflagellates; Hydrodynamics; Interactions; MAR; Mutualism; Network; Population dynamics; Seasonality; Time series. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00461/57257/59285.pdf Avaliação da variabilidade genética em populações naturais de pimenta longa (Piper hispidinervum) no Estado do Acre. Infoteca-e BARROS, L. S. de; OLIVEIRA, M. N. de. Este trabalho tem o objetivo de verificar a dinâmica e a distribuição da variabilidade genética em populações naturais de pimenta longa. Tipo: Folhetos Palavras-chave: Variación genética; Dinámica poblacional; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Pimenta Longa; Piper Hispidinervum; Variação Genética; Dinâmica Populacional; Piper longum; Genetic variation; Population dynamics. Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492624 Monitoreo de Eoreuma loftini (Lepidoptera: Crambidae) en caña de azúcar con su feromona sexual en Morelos, México. Colegio de Postgraduados Barroso Aké, Hanzel Jesús. Eoreuma loftini (Lepidoptera: Crambidae) es un problema fitosanitario en la zona productora de caña de azúcar de Tlaquiltenango, Morelos, México. Para ampliar el conocimiento de esta especie, en este trabajo se plantearon los objetivos siguientes: conocer la fluctuación población de E. loftini; evaluar la eficacia de captura de machos con la feromona comercial; determinar la relación entre capturas, temperatura y precipitación pluvial y estimar la duración del atrayente en campo. Se establecieron dos experimentos con trampas tipo “ala”; el primero del mes de febrero de 2013 con revisiones quincenales hasta enero de 2014. En el cual, el liberador de la feromona se renovó mensualmente. El experimento dos, se llevó a cabo de abril a diciembre de 2013, con... Palavras-chave: Fluctuación poblacional; Regresión lineal; Trampa tipo "ala"; Citocromo oxidasa I.; Population dynamics; Linear regression; Trap type "wing"; Cytochrome oxidase I.; Entomología y Acarología; Maestría. Ano: 2014 URL: http://hdl.handle.net/10521/2364 Waterboatmen, and testing for Lotka-Volterra-type interactions OMA Bergmans, M.. A previous paper by Istock, in which this author claims to have successfully applied the Lotka-Volterra model to his observations on corixid population dynamics, is criticised for the shortcomings in evidence cited to support the model's fit with the data. It is contended that the dynamic behaviour of the system of Hesperocorixa lobata - Sigara macropala interaction is not in accordance with the Lotka-Volterra model. ThIs brief critique is followed by comments by istock in reply to the points raised in Bergmans' letter. Tipo: Info:eu-repo/semantics/article Palavras-chave: Models; Population dynamics; Corixidae. Ano: 1979 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3600 A new analytical formulation of retention effects on particle diffusion processes Anais da ABC (AABC) Bevilacqua,Luiz; Galeão,Augusto C.N.R.; Costa,Flavio P.. The ultimate purpose of this paper is to present a new analytical formulation to simulate diffusion with retention in a reactive medium under stable thermodynamic conditions. The analysis of diffusion with retention in a continuum medium is developed after the solution of an equivalent problem using a discrete approach. The new law may be interpreted as the reduction of all diffusion processes with retention to a unifying phenomenon that can adequately simulate the retention effect namely a circulatory motion. It is remarkable that the governing equation requires a fourth order differential term as suggested by the discrete approach. The relative fraction of diffusion particles β is introduced as a control parameter in the diffusion-retention law as... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diffusion; Retention; Constitutive law; Discrete approach; Population dynamics; Fourth order differential equations. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400031 Conocimiento biológico pesquero del recurso merluza (Merluccius hubbsi) y su pesquería en la República Argentina. OceanDocs Bezzi, S.I.; Dato, C.V.. This paper summarizes the present knowledge on Merluccius hubbsi and its fishery in Argentina, based on the model proposed by the Technical Secretary of Comisión Técnica Mixta del Frente Marítimo, in 1990. It includes the taxonomic location of the species, its geographical distribution, stock unity, structure and population dynamics. It describes the fishing gear and fishing operations and presents the available information on selectivity and discards. The paper shows the data landings separated by fleet. Exploitation regulatory measures in force are included. Tipo: Journal Contribution Palavras-chave: Gadoid fisheries; Population dynamics; Stock assessment; Mortality; Population structure; Fishery management; Landing statistics; Parasites; Stock assessment; Population structure; Fishery management; Mortality; Parasites; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4945; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6111. Ano: 1995 URL: http://hdl.handle.net/1834/2558 Impact de l'érosion côtière et éléments d'étude de vulnérabilité : example du Togo (Golfe de Guinée) OceanDocs Blivi, A.B.. La morphodynamique côtière permet d'analyser les séquences de plages réflexives et dissipatrices des côtes sablonneuses. Les ouvrages maritimes perturbent le mécanisme hydro-sédimentaire et déclenchent l'érosion côtière dont les impacts de recul sont généralement assez forts, notamment de 12 m/an sur le segment de 5 km de côte, à l'est du système d'infrastructures portuaires de Cotonou, au Bénin, et de 5 à 10 m/an sur environ 30 km de côte, au Togo. Cette caractérisation morphodynamique de plage, aussi bien à court qu'à long terme, est en réponse aux variations significatives du bilan sédimentaire dont les conséquences ' sont très importantes du fait de l'utilisation de l'espace pour des activités industrielles et urbaines très variées et de la forte... Tipo: Journal Contribution Palavras-chave: COASTAL EROSION; Coastal zone; Growth; Population dynamics; Population number; Growth; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6111. Ano: 2001 URL: http://hdl.handle.net/1834/1236 Seasonal dynamics of larvae and adults of two Enochrus Thomson (Coleóptera: Hydrophilidae) species in temporary and permanent water bodies of an urban park in Buenos Aires RChHN BYTTEBIER,BARBARA; FISCHER,SYLVIA; TORRES,PATRICIA L. M.. The dynamics of Enochrus variegatus (Steinheil) and Enochrus vulgaris (Steinheil) in temporary pools and permanent ponds were studied in an urban park of Buenos Aires, Argentina. Samples were collected from both types of habitats weekly throughout one year, and variables like water surface and vegetation cover were recorded. In permanent ponds, adults of both species were found throughout the study period, while in temporary pools their presence depended on the availability of water. Differences in their reproductive seasons and breeding sites were observed. Enochrus vulgaris was characterized by an opportunistic strategy, and its larvae were detected in both types of habitats, associated mainly with spring and summer temperatures. Conversely, E.... Tipo: Journal article Palavras-chave: Adaptation to drought; Aquatic Coleoptera; Hydrophilidae; Population dynamics; Water permanence. Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2012000300003 La Baie de Seine: Peuplements et especes benthiques en regime perturbe ArchiMer Cabioch, L; Retiere, C. The waters of the Seine River are polluted by urban, industrial and agricultural effluents. In addition direct industrial wastes inputs are emptied into the estuary. Within the limits of the Seine Bay program it was not possible to research pollution impacts on every estuarine ecosystem link; so only benthos have been studied. To take time response of organisms into account, the authors have defined indicators or quantitative evaluation of parameters, reflecting physiological state. They have studied population fluctuations caused by natural or man induced effects. Tipo: Text Palavras-chave: Hydrodynamics; Population dynamics; Population structure; Bioaccumulation; Pollution effects; Marine pollution; Ecosystem disturbance; Benthos. Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1304.pdf Applying search theory to determine the feasibility of eradicating an invasive population in natural environments AgEcon Cacho, Oscar J.; Hester, Susan M.; Spring, Daniel. The detectability of invasive organisms influences the feasibility of eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. In this paper, search theory concepts are incorporated into a population model, and the costs of search and control are calculated as functions of the amount of search effort (the decision variable). Simulations are performed on a set of weed scenarios in a natural environment, involving different combinations of plant longevity, seed longevity and plant fecundity. Results provide preliminary estimates of the cost and duration of eradication programs to assist in prioritising weeds for control. The... Tipo: Article Palavras-chave: Bioeconomics; Invasive species; Operations research; Population dynamics; Weed control; Resource /Energy Economics and Policy. Ano: 2007 URL: http://purl.umn.edu/118522 Weed Search and Control: Theory and Application AgEcon Cacho, Oscar J.; Spring, Daniel; Pheloung, Paul; Hester, Susan M.. The detectability of invasive organisms influences the costs and benefits of alternative control strategies, and the feasibility of eradicating an infestation. Search theory offers a mathematically rigorous framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. To demonstrate the application of search theory to invasive species control, invasive species detectability is incorporated into a population simulation model. The model is applied to a base set of parameter values that represent reasonable values for a hypothetical weed. The analysis shows the effects of detectability and search time on the duration of an eradication program. Furthermore, for a given level of... Tipo: Working or Discussion Paper Palavras-chave: Search and control; Search theory; Weed control; Stage matrix; Impedance factors; Population dynamics; Stochastic model; Farm Management. Ano: 2004 URL: http://purl.umn.edu/12919 Registros recuperados: 155 Primeira ... 1 2 3 4 5 6 7 8 ... Última

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