Mostrando ítems 51-60 de 110
Sánchez-Fortún Burriel, Moisès (Fecha de defensa: 2022-07-20)
Mercury pollution is of great concern for the scientific community due to their ubiquity and persistence in the environment. Its bioaccumulation and biomagnification capacities along food webs enhance ...
Mihaela Stefan, Laura (Fecha de defensa: 2016-12-12)
Feather mites are among the most abundant and commonly occurring bird ectosymbionts. They live permanently on the host body, are adapted to inhabit well-defined host microhabitats and are found in almost ...
Morera Pujol, Virginia (Fecha 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 ...
Cortés Serra, Verònica (Fecha de defensa: 2018-02-05)
La mortalitat per captura accidental en les pesqueres de palangre representa una de les principals amenaces per a nombroses espècies d’ocells marins a nivell mundial. En el Mediterrani, aquesta mortalitat ...
Pereira de Felipe, Fernanda (Fecha de defensa: 2020-01-15)
Sexual Segregation (SS) is a phenomenon that occurs across a wide range of animal species, and that had been broadly categorized in spatial/habitat segregation and social segregation. SS of a given ...
Reyes González, José Manuel de los (Fecha de defensa: 2021-05-26)
The revolution in biologging and satellite telemetry technologies in the last two decades has led to a new era in seabird research. This thesis brings new insights into the spatial ecology and migration ...
Dias, Andreia Suzana Ribeiro e Cota de Pinho (Fecha de defensa: 2021-04-15)
Bonelli's eagle is considered an umbrella and flagship species in Mediterranean ecosystems. In this thesis, we focus on the fact that the Bonelli’s eagle population in southern Portugal nests in trees ...
Harjung, Astrid (Fecha de defensa: 2018-04-03)
Headwater streams essentially link the terrestrial and the aquatic carbon cycle because they transport terrestrial organic and inorganic carbon downstream towards the oceans. However, most of these ...
Poblador Ibáñez, Sílvia (Fecha de defensa: 2018-07-10)
During the last decades, most of the studies based on climate change effects on vegetation physiology have focused on upland forests and species at their border of distribution, since, in both conditions, ...
Giménez Grau, Pau (Fecha 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) ...