Now showing items 76-95 of 147

    Estudio sobre la toxoplasmosis en Andorra y el Alt Urgell 

    Gómez i Grau, Ferran (Date of defense: 2004-12-17)

    EN CASTELLANO:<br/><br/>La toxoplasmosis es una de las más importantes zoonosis del ser humano. Esta ocasionada por <i>Toxoplasma gondii</i> un parásito coccidio apicomplejo de distribución cosmopolita.<br/>En este estudio ...

    Evaluación de métodos de seguimiento y de manejo de poblaciones de cernícalo primilla aplicados a su conservación 

    Ursúa Sesma, Esperanza (Date of defense: 2006-10-06)

    La biología de la conservación, nacida para dar respuesta a la crisis de biodiversidad creciente durante el siglo XX, está volviendo su atención actualmente hacia la necesidad de mejorar el entendimiento y la colaboración ...

    Evaluation of biological control agents against Monochamus galloprovincialis (Coleoptera: Cerambycidae) in Portugal 

    Silva, Ricardo Neves Petersen (Date of defense: 2015-07-17)

    Pine wilt disease is the result of a complex interaction between a nematode, a host tree and an insect vector. The pine wood nematode (PWN) Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle is the causal agent, being ...

    Evolución de la dieta en Cataluña y Baleares desde el Paleolítico hasta la Edad Media a partir de restos esqueléticos 

    Martínez Pérez-Pérez, Alejandro (Date of defense: 1990-09-01)

    El estudio de las poblaciones humanas pretéritas no se limita actualmente a una descripción morfológica y tipológica clásicas. El desarrollo de nuevas técnicas de análisis nos permite abordar cuestiones sobre adaptación y ...

    Evolution of the male genitalia in the genus Limnebius Leach 1815, family Hydraenidae (Coleoptera) 

    Rudoy, Andrey (Date of defense: 2016-10-17)

    In the present work I analysed different aspects of the evolution of genus Limnebius (Coleoptera, Hydraenidae), including its molecular evolution using mitochondrial (COI, 16S, tRNA-leu, NAD1) and nuclear markers (18S, ...

    Evolutionary history and drivers of diversification of the Mediterranean Nemesiidae spiders (Araneae, Mygalomorphae) = Història evolutiva i mecanismes de diversificació en aranyes mediterrànies de la familia Nemesiidae (Araneae, Mygalomorphae) = Historia evolutiva y mecanismos de diversificación en arañas mediterráneas de la familia Nemesiidae (Araneae, Mygalomorphae) 

    Mora de Checa, Elisa (Date of defense: 2015-12-14)

    Mygalomorphs is a cosmopolitan group that inhabits all the continents except Antarctica. The group and has been commonly described as ‘primitive’ because of the retention of plesiomorphic characters, such as the presence ...

    Evolutionary patterns of the human skull. A quantitative genetic analysis of craniofacial phenotypic variation / Patrons evolutius del crani humà: Anàlisi geneticoquantitativa de la variacio fenotípica craniofacial. 

    Martínez Abadías, Nieves (Date of defense: 2007-12-19)

    This thesis is the final outcome of the project "Quantitative genetics of craniofacial traits: a functional approach to heritability", which received support from the Wenner-Gren Foundation for Anthropological Research in ...

    Factors estructuradors d'una comunitat de mesocamivors en un ambient agroforestal Mediterrani 

    Barrull i Ventura, Joan (Date of defense: 2014-12-03)

    En gestió i conservació resulta d’interès comprendre els mecanismes que regulen l’estructuració o condicionen la dinàmica de les comunitats. Amb la informació que proporcionen 842 fotografies de càmeres trampa i 8.175 ...

    Factors que afecten l’èxit d’expansió de poblacions d’aus en medis transformats per l’home: l’arpella "Circus aeruginosus" a la Vall de l’Ebre Factors affecting expansion success of bird populations in human-transformed environments: the marsh harrier Circus aeruginosus in the Ebro Valley 

    Cardador Bergua, Laura (Date of defense: 2011-10-07)

    Change in species geographic ranges is a natural phenomenon, but the rate and magnitude of such change has significantly increased due to anthropogenic causes. The rate at which a population spreads/contracts through space ...

    Faunística, ecologia i gestió dels heteròpters del Parc Natural del Garraf 

    Gessé Solé, Francesc (Date of defense: 2005-03-04)

    S'ha fet un estudi faunístic i ecològic dels heteròpters de quatre comunitats vegetals (prat sec, brolla, garriga i alzinar) del Parc Natural del Garraf.<br/><br/>Per a cada comunitat vegetal s'han triat tres parcel·les. ...

    Filogenia, morfometría y especiación de dos topillos ibéricos: Microtus duodecimcostatus y Microtus lusitanicus 

    Rodríguez Prieto, Ana (Date of defense: 2013-10-04)

    Establecer las relaciones existentes entre las especies y definir los límites entre las mismas ha sido uno de los objetos principales de estudio de la biología evolutiva durante las últimas décadas. El establecimiento de ...

    Foraging Ecology of Seabirds at Sea: Significance of Commercial Fisheries in the NW Mediterranean. 

    Arcos Pros, José Manuel (Date of defense: 2001-12-20)

    Seabirds feeding ecology was studied at sea to assess the significance of two commercial fisheries, trawlers (demersal fishery with diurnal activity) and purse seiners (pelagic fishery with nocturnal activity), in the NW ...

    Genes, environment and their interplay in the development of psychopathological characteristics and their neuroimaging correlates in general population / Genes, ambiente y su interacción en el desarrollo de características psicopatológicas y sus correlatos de neuroimagen en poblaicón general 

    Alemany Sierra, Silvia (Date of defense: 2013-04-15)

    The present dissertation, which can be framed in the fields of behavioural and psychiatric genetics, was aimed to study how early environmental factors such as parental negativity and childhood adversity, directly or in ...

    Genetic Risk Factors for the Lack of Response to Clinical Treatment in Mental Disorders: an Approach from Pharmacogenetics 

    Mitjans Niubó, Marina (Date of defense: 2014-12-17)

    Severe mental disorders, such as Major Depressive Disorder (MDD), Bipolar Disorder (BD) and Schizophrenia (SCZ), represent a huge burden to society, reflecting the limited efficacy of current drug treatments. Although the ...

    Genetic variation in serotonergic system genes: vulnerability for major depression and pharmacogenetics of response to SSRI antidepressants 

    Arias Sampériz, Bárbara (Date of defense: 2003-01-01)

    1. Objetivo General: Estudiar la variación existente en genes candidatos implicados en la neurotransmisión serotoninérgica como factor de riesgo en la depresión mayor y como factor relacionado con aspectos del fenotipo ...

    Genetic variation of the X chromosome and the genomic regions of Coagulation Factors VII and XII in human populations: Epidemiological and evolutionary considerations 

    Athanasiadis, Georgios (Date of defense: 2010-07-14)

    In this work we have analyzed the variation of (i) several X chromosome polymorphic Alu insertions and (ii) several SNPs and microsatellites within and around the genomic regions of the genes coding for coagulation factors ...

    Genetics of human populations: evolutionary and epidemiological applications = Genética de las poblaciones humanas: aplicaciones evolutivas y epidemiológicas 

    Zanetti, Daniela (Date of defense: 2015-11-26)

    The present thesis deals with a deep analysis of the genetic structure of extant human worldwide populations, with a special focus on the Mediterranean. Different genetic markers, 18 Alu insertions and 367 single ...

    Habitat disturbance in Mediterranean landscapes:Effects of fire and fragmentation on birds 

    Herrando Vila, Sergi (Date of defense: 2001-05-21)

    The main objective of this thesis is to analyse how fire and fragmentation in Mediterranean habitats affect birds. Each chapter of this work poses questions and hypothesises about the ecological responses of birds to these ...

    Habitat management and the use of plant-based resources for conservation biological control / Gestión del hábitat y papel de los recursos vegetales en el control biológico por conservación 

    Pumariño Romero, Lorena (Date of defense: 2012-05-04)

    Modern agriculture has been focused on very intensive agricultural systems that depend on external inputs such as fertilizers or pesticides. These practices have lead to a simplification of the landscape and a decline of ...

    Heteroptera ecology, biodiversity and conservation = Ecología, biodiversidad y conservación de heterópteros 

    Mata, Luis (Date of defense: 2013-11-11)

    Heteropteran bugs make an important contribution to the hyperdiversity of insects. As with other insect taxa, the proper species identification of heteropteran bugs requires diagnostic dichotomous keys. Faunistic studies ...