Ara mostrant els elements 119-138 de 181
Resano Fantino, Magdalena (Data de defensa: 2018-10-25)
El objetivo principal de esta tesis es hacer un estudio completo del mestizaje genético de Argentina. Se pretende valorar la distribución territorial y regional del mestizaje y contrastarla con la información histórica y ...
Saborit González, Gerard (Data de defensa: 2019-07-10)
La locomoción bípeda humana es un importante hito evolutivo. Los humanos aprendemos a caminar a temprana edad, aunque no por ello los procesos mecánicos involucrados son simples. Fuerzas y energía deben sincronizarse creando ...
Trapote Forné, Mari Carmen (Data de defensa: 2019-09-16)
Varved lake sediments also known as annually laminated sediments, are natural paleoenvironmental archives containing high-resolution proxy data and precise chronologies. They are one of the few natural archives that can ...
Zajková, Zuzana (Data de defensa: 2020-01-20)
Movement is a fundamental component of behaviour and thus both are inextricably linked. Variation in movement patterns usually reflects different behaviours, including those most glaring, such as foraging, dispersal, ...
Aspillaga Cuevas, Eneko (Data de defensa: 2017-07-27)
Animal movement is a key biological process for the maintenance of ecosystem services, and a major concern for the conservation of biodiversity. The aim of movement ecology is to understand the causes and consequences of ...
Morera Pujol, Virginia (Data de defensa: 2020-01-17)
Movement is a widespread characteristic in the animal kingdom —occurring at many spatiotemporal scales— with consequences at an individual, population, species, and even ecosystem level. It is a very diverse character, ...
Buchaillot, Maria Luisa (Data de defensa: 2023-02-10)
[eng] Personal food security means that they have physical and economic access to sufficient, safe, and quality food. On the other hand, there are three main causes of food insecurity: 1. the high vulnerability of agriculture ...
Hamdane, Yassine (Data de defensa: 2023-09-14)
[eng] The main driving force behind crop research is to ensure food security. Climate change, which affects most crops and increases the risk of disease and famine, is addressed in this notion. The Food and Agriculture ...
Pastor Prieto, Marina (Data de defensa: 2023-03-10)
[eng] Gelatinous zooplankton has been studied in the Western Mediterranean for a long time, however, its spatial structure has been mainly addressed in coastal areas, during spring and summer periods. Hence, information ...
Pagès Escolà, Marta (Data de defensa: 2019-12-09)
Marine ecosystems are directly threatened by multiple and interactive human stressors at global and local scales. Hence, it is vital to study biodiversity and ecological patterns through a multi-disciplinary approach, from ...
Giménez Grau, Pau (Data de defensa: 2016-11-04)
The main objectives of this dissertation were (a) to determine the effects of nitrogen (N) and phosphorus (P) fertilization on the growth of microalgal groups of periphyton and phytoplankton, and (b) to evaluate some ...
Buxalleu Serras, Carme (Data de defensa: 2023-03-17)
[cat] Atenent als fets de que la classificació europea s’ha desenvolupat, principalment, dins les fronteres de cadascun dels països portant a notables diferències dels corresponents tipus de vegetació -fins i tot entre ...
Quirós Garzón, Carolina (Data de defensa: 2023-10-18)
[spa] El objetivo general de esta tesis ha sido estudiar el comportamiento solitario y social de un grupo de ocho delfines mulares (Tursiops truncatus) en cautividad (Zoo de Barcelona), durante dos periodos reproductivos, ...
Khan, Hares (Data de defensa: 2021-09-16)
Inland waters are relevant components of the global carbon cycle acting as hot spots for biogeochemical processes by which carbon is stored, transformed, and outgassed to the atmosphere. Therefore, less than half of the ...
Ferreres Contreras, Irene (Data de defensa: 2020-06-26)
Rice belongs to the Poaceae family and Oryza genus. The genus Oryza comprehends 24 species, being 22 wild and 2 cultivated. These two cultivated species correspond to Oryza sativa, originated in Asia, nowadays cultivated ...
Badia Boher, Jaume Adrià (Data de defensa: 2023-09-15)
[eng] In this thesis, we took advantage of recent advances in the degree of sophistication and flexibility of population models to study the population dynamics and conservation of long-lived species. As main objective, ...
Arias-LeClaire, Harold (Data de defensa: 2018-11-21)
Pre-dispersal seed predation (PDSP, hereafter) significantly reduces plant reproductive output. The negative effects on plant fitness have triggered the development of different strategies to protect the seeds and/or reduce ...
Franch Quintana, Marc (Data de defensa: 2016-11-04)
La tortuga de rierol (Mauremys leprosa) és una espècie de tortuga aquàtica continental que es distribueix pel nord d’Àfrica, la Península Ibèrica i una petita part del sud de França. Aquesta distribució coincideix amb una ...
Abril Cuevas, Meritxell (Data de defensa: 2017-05-03)
Nowadays, it is recognized that freshwater ecosystems can process a substantial part of the terrestrial organic matter they transport, thereby contributing significantly to global C fluxes. However, the mechanisms behind ...
Canals Delgado, Oriol (Data de defensa: 2017-09-08)
La present tesi té com a objectiu l’estudi de la comunitat microeucariota que es desenvolupa en dos sistemes avançats de tractament d’aigües residuals amb alta càrrega amoniacal. La comunitat microeucariota, especialment ...