Now showing items 21-40 of 186
Palma Guillén, Alfred (Date of defense: 2023-10-20)
[eng] In the Mediterranean basins, rice is mainly cultivated in wetland protracted areas such as deltas and marshlands, where it is the prevailing crop due to the high soil salinity. This salinity is continuously increasing ...
Khamis, Abdulqader (Date of defense: 2023-10-24)
[eng] The principal challenge of conserving marine megaherbivores is that they typically range over extensive areas that far exceed the spatial scales of conventional management, transcending protected areas, and often ...
Rezzouk, Fatima Zahra (Date of defense: 2023-09-15)
[eng] Wheat is a major staple food worldwide. Its cultural and economic importance is mainly highlighted in the Mediterranean region, among other regions of the world. However, wheat production is frequently challenged by ...
Hamdane, Yassine (Date of defense: 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 ...
Gort Esteve, Araceli (Date of defense: 2023-09-22)
[eng] Deer populations are increasing in recent times. One of the main causes is the abandonment of agriculture and extensive livestock farming. This thesis focuses on expanding our knowledge about the biology of red deer ...
Badia Boher, Jaume Adrià (Date of defense: 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, ...
Guardiola Ripoll, Maria (Date of defense: 2023-07-26)
[eng] Schizophrenia is a severe psychiatric disorder affecting around 24 million people worldwide. While we begin to disentangle the biological actors implicated in the origin of the disorder, the precise aetiological ...
Nuez Rodriguez, Ignasi (Date of defense: 2023-06-26)
[spa] Los tiburones y en general los peces condrictios se encuentran entre los organismos más amenazados del planeta, siendo los efectos derivados de la interacción con actividades pesqueras, como la sobrepesca y la pesca ...
De Castro-Fernández, Paula (Date of defense: 2023-05-12)
[spa] Debido a las condiciones ambientales y características biológicas únicas de los ambientes marinos antárticos, los efectos del cambio climático pueden ser devastadores y pueden reflejar el posible futuro a gran escala ...
Mosquera Vintimilla, Pablo (Date of defense: 2023-04-19)
[eng] High-mountain tropical lakes in the South American continent are located in the upper part of the Andes range in the equatorial zone (Venezuela, Colombia, Ecuador, Peru, and Bolivia), altitudinally, usually above the ...
Pastor Prieto, Marina (Date of defense: 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 ...
Velasquez Vacca, Adriana (Date of defense: 2023-03-21)
[eng] Hawaiian green turtles Chelonia mydas were heavily exploited for their fat, meat and eggs by the Polynesians in the pre-contact era and continued to be commercially exploited until 1978 when they were officially ...
Buxalleu Serras, Carme (Date of defense: 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 ...
Gómez Bellver, Carlos Miguel (Date of defense: 2023-03-03)
[cat] OBJECTIUS PRINCIPALS: Les invasions biològiques són la conseqüència principal d'activitats antròpiques que en el cas de les plantes corresponen a diverses causes, principalment: el transport de persones i mercaderies, ...
Buchaillot, Maria Luisa (Date of defense: 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 ...
Ubach Permanyer, Andreu (Date of defense: 2023-01-10)
[eng] The current context of global change is causing many threats to biodiversity worldwide, and the profound and rapid transformations of the environment have led to a severe insect decline. Because of their sensitivity ...
Jara Chiquito, Juan Luis (Date of defense: 2023-01-13)
[cat] La vespeta del castanyer, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) és una espècie cedidògena originària de l'est de la Xina, que ataca tots els arbres del gènere Castanea (Fagaceae) col·lectant-se per ...
García Vernet, Raquel (Date of defense: 2022-05-06)
El objetivo global de esta tesis es ampliar el conocimiento sobre la biología y ecología del rorcual común, con foco principal en la población de rorcual común de Islandia. Dadas las numerosas incógnitas que siguen existiendo ...
Casadesús Cabral, Andrea (Date of defense: 2022-09-19)
Tots els organismes fotosintètics són capaços de sintetitzar vitamina E, la qual s’acumula de forma ubiqua en els teixits vegetals, tant en els fotosintètics com en els no fotosintètics. Mentre que la vitamina E és un ...
Garcia Garin, Odei (Date of defense: 2022-07-04)
La basura marina está aumentando exponencialmente en los mares y océanos de todo el mundo. En los últimos años, se han reportado y documentado sus amenazas a la fauna marina y a los ecosistemas marinos en general. Por estas ...