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Now showing items 12060-12079 of 41663
Effects of environmental conditions on phenotypic plasticity of fishes in Iberian waters: life-history, physiological and morphological traits
Phenotypic plasticity is the adaptive response of a genotype to presenting different types of phenotypes in response to environmental changes. These adaptive responses can contribute to a particular species being able to ...
Effects of environmental factors on the gonadal transcriptome of European sea bass (Dicentrarchus labrax), juvenile growth and sex ratios
In many gonochoristic fish, sex is plastic since it can be altered by the influence of environmental factors. In this thesis, using the European sea bass (Dicentrarchus labrax) model, a teleost fish with a polygenic sex ...
Effects of environmental predictability on life history traits and population dynamics. Insights from a three-year population experiment on the common lizard (Zootoca vivipara)
A central theme in ecology and evolution is to understand whether and how species respond to environmental changes. The amount of studies focusing on how species might cope with climate change has been steeply growing, ...
Effects of environmental variability and perturbations on seabirds' population dynamics = Efectos de la variabilidad ambiental y las perturbaciones en la dinámica de poblaciones de las aves marinas
The overarching aim of my thesis was to assess the role of environmental variability and specially of perturbations in the population dynamics of social vertebrates. Our results emphasize the need to collect individual, ...
Effects of feeding different vegetal fat sources to increase conjugated linoleic acid in milk of small ruminants and interaction with fibrolytic enzymes
El objetivo principal de la presente tesis doctoral fue estudiar la posibilidad de mejorar la calidad nutritiva de la leche de oveja y de cabra, y en particular la concentración de ácido linoleico conjugado (CLA) mediante ...
Effects of Fish Oil and its Combination with Grape Seed Polyphenols or Buckwheat D-Fagomine on Cardiometabolic Risk Factors and Oxidative Stress in Rats
En les darreres dècades, les prevalences d’obesitat, de dislipèmia aterogènica i de síndrome metabòlica han augmentat considerablement a nivell mundial. La resistència a la insulina és una característica comuna en aquests ...
Effects of flow control on flow past bluff bodies
The aim of this Ph.D. thesis, "Effects of flow control on flow past bluff bodies" is to study and analyzes the effects of Flow Control on various aspects and proverbs of flow past bluff bodies. Flow control techniques are ...
Effects of flow discontinuities on carbon gas fluxes in a Mediterranean fluvial network = Efecte de les dicontinuitats hidrològiques sobre els fluxes gasosos de carboni en una xarxa fluvial Mediterrània
Inland waters are active components of the global carbon (C) cycle that transform, store and outgas more than half of the C they receive from adjacent terrestrial ecosystems. However, fundamental uncertainties regarding ...
Effects of flow intermittence on dissolved organic matter quality
Water availability is the primary driver of dissolved organic matter (DOM) dynamics in intermittent rivers and ephemeral streams (IRES). Therefore, current research manifests the global influence of flow disruption on ...
Effects of flow regime on the fish communities of the lower Ebro River
Els ecosistemes aquàtics presenten una estreta connexió entre forces físiques i processos ecològics. Als rius, aquesta interacció física-ecologia és dirigida pel cabal, un dels factors principals que determinen la integritat ...
The Effects of foreign-accented speech on language comprehension and retrieval processes
When people learn a second language, they typically speak with a foreign accent. Crucially, foreign-accented speech is more difficult to understand and requires more processing time than native speech. Nevertheless, native ...
Effects of forest management, tree growth and climate on fungal communities
El principal objectiu d’aquesta tesi és entendre, descriure i quantificar els efectes de les aclarides forestals, del creixement dels arbres i del clima en la biomassa fúngica i en la productivitat i composició dels fongs. ...
Effects of frequency and duration of flow intermittence on biodiversity and ecosystem functioning: insights form Mediterranean streams
Intermittent rivers and ephemeral streams (IRES) are watercourses that naturally and periodically cease to flow. They represent more than half of the global river network and are expanding due to global change. In this ...
Effects of global change on benthic communities of the lower Ebro River: implications for the assessment of the ecological status
Aquesta tesi doctoral avalua l’estructura i composició de comunitats bentòniques ( diatomees i macroinvertebrats) del tram baix de l’Ebre en funció d’alteracions del cabal natural del riu causades per la presència del ...
Effects of global change on fish assemblages in Mediterranean streams
L'objectiu d'aquesta tesi és de'explorar alguns aspectes de l'impacte humà sobre les poblacions de peixos i altres components dels ecosistemes fluvials Mediterranis de Catalunya. Es va mostrar com els peixos del Riu Llobregat ...
Effects of global change on the diet of a mountain ungulate: the Pyrenean chamois
Els herbívors tenen un paper fonamental en el manteniment de la salut i l'estructura dels ecosistemes a nivell mundial. No obstant, evidències recents indiquen que el canvi climàtic i el canvi en l'ús del sòl afecten els ...
Effects of Glucagon-like Peptide-1-(7-36)amide (GLP-1) on Gastric Motor Function in Health and Diabetes: Potential Mechanism of Action
El Glucagon-like peptide-1 (GLP-1), un pèptid derivat del processament del proglucagó en les cè_lules L del jejúnum i del colon, inhibeix la secreció àcida gàstrica i el buidament gàstric, a més de reduir la capacitat ...
Effects of grape seed procyanidin extract on proliferation and apoptosis in pancreatic cells
Procyanidins have been reported to modulate glucose homeostasis and β-cell functionality. However, their effects on pancreatic cell mass remain unknown. Therefore, this doctoral thesis focused on the study of the effects ...
Effects of helminth co-infections on tuberculosis status in a wildlife reservoir
En aquesta tesi s’ha estudiat des d’aspectes bàsics de parasitologia del porc senglar (Sus scrofa), fins l'estudi més ecològic de les seves poblacions de patògens, les co-infeccions que en deriven i els efectes sobre el ...
Effects of hesperidin on cardiovascular disease risk biomarkers: An omics science approach approach
Les malalties cardiovasculars són la primera causa de morbimortalitat al món, i el polifenol hesperidina podria tenir efectes protectors sobre el sistema cardiovascular. L’objectiu de la present tesi doctoral és avaluar ...
