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Analyse des déterminants environnementaux de la variabilité du recrutement - approche macroécologique appliquée aux populations exploitées du Nord-Est Atlantique ArchiMer
Brunel, Thomas.
Recruitment - the number of young fishes that integrate each year the exploitable stock¿ has a central importance for stock dynamics. The high temporal variability in recruitment is a result of the environmental influence on survival during early life stages. Understanding the determinism of the influence of environment on recruitment remains one of the most important question in fisheries ecology. The present work aimed at answering some general questions about the influence of environment on fish recruitment using a macroecological approach. The study focused on the exploited fish populations of the Northeastern Atlantic. The first chapter of the thesis makes a review of the different methods used to estimate recruitment, compares recruitment estimates...
Tipo: Text Palavras-chave: Time series; Recruitment variability; Regime shift; Recruitment synchrony; North East Atlantic; NAO; Long term trends; Environmental influence; Effect of temperature; Effect of fishing; Climate change; Biogeography; Variabilité du recrutement; Synchronisme; Séries chronologiques; Tendances à long terme; NAO; Influence de l'environnement; Effet de la température; Effet de la pêche; Changement de régime; Changement climatique; Biogéographie; Atlantique Nord Est.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-1113.pdf
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Genetic and environmental influences on blood pressure and physical activity: a study of nuclear families from Muzambinho, Brazil BJMBR
Forjaz,C.L.M.; Bartholomeu,T.; Rezende,J.A.S.; Oliveira,J.A.; Basso,L.; Tani,G.; Prista,A.; Maia,J.A.R..
Blood pressure (BP) and physical activity (PA) levels are inversely associated. Since genetic factors account for the observed variation in each of these traits, it is possible that part of their association may be related to common genetic and/or environmental influences. Thus, this study was designed to estimate the genetic and environmental correlations of BP and PA phenotypes in nuclear families from Muzambinho, Brazil. Families including 236 offspring (6 to 24 years) and their 82 fathers and 122 mothers (24 to 65 years) were evaluated. BP was measured, and total PA (TPA) was assessed by an interview (commuting, occupational, leisure time, and school time PA). Quantitative genetic modeling was used to estimate maximal heritability (h²), and genetic and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exercise; Hypertension; Environmental influence; Heritability; Genetic epidemiology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200023
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Chemical composition and yield of essential oil from three Croton species Ciência Rural
Souza,Giuliane Sampaio de; Bonilla,Oriel Herrera; Lucena,Eliseu Marlônio Pereira de; Barbosa,Yuri Pereira.
ABSTRACT: Marmeleiros are popularly known for the medicinal properties ascribed to their essential oils. This research aimed to analyze the essential oil of leaves from three Croton species (Croton argyrophylloides, Croton jacobinensis, and Croton sincorensis), to verify whether the daily time and harvest season in the year may interfere with their essential oils performance and composition. From each species, 1,500g of green leaves were harvested in Viçosa do Ceará - CE, at 6am and 12pm, during both dry and rainy seasons. Essential oil extraction was conducted by the method of water vapor drag and chemical profile was analyzed by gas chromatography-mass spectrometry (GC/MS). The highest yield was obtained at 12pm in the dry season for C. argyrophylloides...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Marmeleiro; Euphorbiaceae; Bicyclogermacrene; Environmental influence; Crotons.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800404
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