Ara mostrant els elements 21-40 de 58
Latorre Espeso, Dani (Data de defensa: 2019-10-17)
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 ...
Ferrer Maza, Dolors (Data de defensa: 2016-02-05)
This PhD thesis evaluates the links between parasitism, condition and reproduction of mature female individuals of three of the most captured fish species in the western Mediterranean Sea: European hake, Merluccius merluccius; ...
Vergés Guirado, Alba (Data de defensa: 2002-03-07)
L'objectiu d'aquest treball ha estat l'estudi del gènere Kallymenia a la Península Ibèrica i a les<br/>Illes Balears, el qual es troba representat per les espècies següents: K. reniformis (Turner) J.<br/>Agardh, K. feldmannii ...
Mercadal i Corominas, Gabriel (Data de defensa: 2019-11-13)
The hay meadows in the Mediterranean region of Catalonia. Geobotanical characterisation, agri-environmental assessment, and study of the phytosociological relationships between hay meadows in Western Europe We locate ...
Gascón Garcia, Stéphanie (Data de defensa: 2003-12-12)
S'ha estudiat l'estructura i dinàmica del sistema bentònic de llacunes costaneres de la maresma dels aiguamolls de l'Empordà (NE de la península Ibèrica) i els factors que les determinen. Amb aquesta finalitat es van prendre ...
Abril, Sílvia (Data de defensa: 2008-04-18)
La present tesi intenta obtenir noves dades referents a la biologia i ecologia de la formiga argentina que poden arribar a ser cabdals per al disseny o millora de noves metodologies de control de l'expansió de la plaga en ...
Puig-Gironès, Roger (Data de defensa: 2016-12-22)
Wildfires are natural perturbations that affect the structure of the landscape and biodiversity. In the Mediterranean basin, wildfires occur especially in hot seasons. However, in recent years the number of fires with the ...
Sánchez, Noemí, 1976- (Data de defensa: 2006-05-30)
L'objectiu d'aquesta tesi doctoral ha estat estudiar a nivell taxonòmic i ecofisiològic les espècies de la família Faucheaceae (Rhodymeniales, Rhodophyta) presents a la península Ibèrica i a les illes Balears: Fauchea ...
Àvila Izquierdo, Núria (Data de defensa: 2017-05-26)
Autotrophic and heterotrophic microorganisms are two essential functional units in the microbial food web of aquatic ecosystems. They play a key role in nutrient cycling and carbon flow and influence the structure, composition ...
Jones Román, Gabriela (Data de defensa: 2012-06-11)
This study was conducted in burned and harvested areas of Catalonia. It was evaluated the effect of the granivorous in predispersive fruit removal of Smilax aspera and Quercus coccifera and postdispersive seed removal. ...
Mor Roy, Jordi-René (Data de defensa: 2019-09-19)
Mediterranean rivers are characterized by high hydrological variability and heterogeneity of habitats, placing themselves amongst arid and temperate climates, and are associated with high biological diversity. On the ...
Llanos Paez, Oriana Lucia (Data de defensa: 2024-02-07)
Non-perennial rivers and streams are defined as systems that cease to flow at some point in space and time along their course. These systems are widespread globally representing more than half of the global river network, ...
Bernal Montolio, Meritxell (Data de defensa: 2013-07-22)
Climatic models predict higher fluxes of UV-B radiation and a decrease in summer precipitation in the near future for the Mediterranean region. The UV radiation can be an oxidative stress factor for plants affecting their ...
Font Payeras, Toni (Data de defensa: 2014-05-13)
La pesca recreativa és una de les activitats turístiques més practicades a les zones costaneres arreu del món, implicant a un gran nombre de persones i per tant una pressió sobre els recursos gens menyspreable, especialment ...
Rubio Gracia, Francesc (Data de defensa: 2021-10-27)
This thesis aimed to assess the responses of stream biota to flow alterations, in terms of water velocity increments and reductions of discharge, and to metal pollution. The investigations performed encompassed (i) ...
Tuulaikhuu, Baigal-Amar (Data de defensa: 2016-06-10)
The main aims of this thesis are: i) to evaluate arsenic toxicity in two major, interacting components of the freshwater ecosystem, biofilm and fish, to provide information on environmentally realistic exposures and on ...
Rost Bagudanch, Josep (Data de defensa: 2011-06-28)
The objective of this thesis is to analyze the effect of the transformation in the habitat that postfire salvage logging supposes on birds in Mediterranean pine forests, at different levels: species, community and ecosystem, ...
Vila Espuña, Sílvia (Data de defensa: 2010-04-08)
El penegal, Helicolenus dactylopterus dactylopterus (Pisces: Scorpaeniformes), és una espècie que habita profunditats d'entre els 200 i 1000 m i presenta una clara distribució batimètrica en funció de la seva talla. ...
Mora Gómez, Juanita (Data de defensa: 2014-12-19)
This thesis studied the principal environmental controlling factors and microbial mechanisms involved in leaf litter decomposition in Mediterranean intermittent streams. Additionally, drought disturbance in both Mediterranean ...
Joher Sais, Sergi (Data de defensa: 2016-01-14)
En aquesta tesi es van descriure els principals fons algals del detrític costaner de la plataforma continental de Mallorca i Menorca (illes Balears, Espanya), i es van proposar mètodes efectius per al seu mostreig tant a ...