Now showing items 1-20 of 183
Minguito Frutos, Mario (Date of defense: 2024-07-29)
[eng] Human domination of Earth’s Systems is transforming life at a planetary scale. A plethora of anthropogenic pressures disrupt environmental conditions, degrading ecosystem functioning and posing unprecedented threats ...
Medrano Martinez, Fernando Anand (Date of defense: 2024-07-16)
[eng] Divergence in reproductive timing, known as allochrony, is an evolutionary process that in some cases has led to sympatric speciation. However, the mechanisms that could drive the existence of allochrony (e.g., ...
Cerecedo Iglesias, Catuxa (Date of defense: 2024-06-14)
[eng] The current rampant loss of biodiversity is known to be affecting human well-being the world over. Sustainability has become the global go-to solution to ensure the balance between economic growth, social well-being ...
Baena Cabrera, Patricia (Date of defense: 2024-05-16)
[eng] The exploration of marine environments, especially the deep sea, has been an ongoing effort. With the majority of Earth’s surface covered by oceans, the invention of SCUBA and subsequent deep-sea expeditions has ...
Navarro Herrero, Leia (Date of defense: 2024-04-15)
[eng] Seabirds and fisheries share the same fishing resources and grounds, resulting in their inevitable interaction, with significant conservation implications for the firsts. Seabirds scavenging on fishery waste modify ...
Viza Sánchez, Aida (Date of defense: 2024-04-04)
[eng] Intermittent rivers and ephemeral streams (IRES) currently constitute half of the global river network, occurring ubiquitously. Characterised by natural and periodic cessations of flow, IRES are proliferating due to ...
Fortuño Estrada, Pau (Date of defense: 2024-03-20)
[cat] Aquesta tesi doctoral sorgeix de l'empremta deixada pel grup de recerca FEHM, liderat pel Dr. Prat, amb més de quatre dècades d'activitat dedicada a la investigació en ecologia aquàtica des de la Facultat de Biologia ...
Hernández Fresno, David (Date of defense: 2024-03-08)
[eng] Plants are not isolated organisms; instead, they constantly interact with the microorganisms in their environment, forming a holobiont that consists of the plants themselves and their entire microbiome. This holobiont ...
Espinoza Vaca, Jorge Santiago (Date of defense: 2024-03-04)
[spa] El suelo, un recurso no renovable y esencial para el desarrollo de la vida, se ve afectado por los sistemas de producción de cultivos que provocan su degradación. El biocarbón, un producto rico en carbono obtenido ...
Suh, Jongmo (Date of defense: 2024-02-20)
[eng] The invasion of alien species is a major global threat to ecosystems, with significant impacts, especially on freshwater ecosystems. The species diversity in freshwater ecosystems has significantly declined worldwide, ...
Castro Quintas, Águeda (Date of defense: 2024-02-26)
[eng] During critical periods of development, psychosocial stress experiences may alter key neural networks of the human brain, with long-lasting effects on behavior and mental health. However, the specific biological ...
Osorio Álvarez, Víctor (Date of defense: 2024-02-06)
[eng] High mountain freshwater ecosystems, such as Pyrenean lakes, are distinguished by their unique ecological characteristics, which encompass their near-pristine undisturbed state, unique biodiversity, and their role ...
Mabano, Amani (Date of defense: 2023-12-19)
[eng] The overall objective of this thesis is to explore the effects of DD on C cycling in reservoirs because there are many dams under removal and many more predicted in the near future. To answer this question, we conducted ...
Bellvert Bantí, Adrià (Date of defense: 2023-11-02)
[eng] Without a shadow of a doubt, adaptive radiation processes have played a major role in our current understanding of how species evolved on our planet. Since the original proposal of the theory of evolution by natural ...
Sanjuan Muñoz, Adolfo (Date of defense: 2023-11-13)
[spa] El pez león (Pterois volitans) inició una propagación sin precedentes en rapidez y magnitud a partir de Florida, Estados Unidos de América, y quizás las Bahamas hace más de dos décadas. Actualmente se ha establecido ...
Cuesta Porta, Victor (Date of defense: 2023-11-13)
[eng] The oak gall wasps (Hymenoptera: Cynipidae: Cynipini) are a group of specialized endophytophagous microhymenopterans that induce galls on Fagaceae trees, principally oaks (Quercus L.). The systematics of this tribe ...
Quirós Garzón, Carolina (Date of defense: 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, ...
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 ...