Adaptive radiations as windows to the evolution of diversity: the spider genera Dysdera and Hogna in the Madeira archipelago 

    Crespo, Luís Carlos da Fonseca (Date of defense: 2021-11-26)

    Dysdera and Hogna are the most speciose spider genera of the Madeira archipelago. I have extensively revised their taxonomy, describing a total of eleven new species, establishing five synonyms and revalidating one name, ...

    Análisis multi-escalar de la capacidad invasora de Discoglossus pictus auritus (Amphibia, anura) 

    San Sebastián Mendoza, Olatz (Date of defense: 2016-11-02)

    Las Especies Exóticas Invasoras siguen tres fases: introducción, establecimiento y expansión, siendo pocas las que consiguen llegar a la última fase con éxito. Son muchos los factores que explican su éxito en el área ...

    Aplicación de técnicas moleculares y químicas al estudio de la dieta, migración y estructura poblacional del rorcual común de Islandia 

    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 ...

    Assessing and mitigating bycatch in the artisanal longline fisheries of the Mediterranean = Avaluació i mitigació de les captures accidentals d'ocells marins en la pesca artesanal de palangre del Mediterrani 

    Cortés Serra, Verònica (Date of defense: 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 esta afectant ...

    Caracterización de la topografía dental en la tribu Papionini: Inferencias alimentarias en los cercopitecinos del Plio-Pleistoceno de Sudáfrica 

    Avià García, Yasmina (Date of defense: 2021-12-10)

    El trabajo que se presenta en esta Tesis Doctoral se centra en el estudio de la topografía dental de los molares superiores e inferiores de diversas especies de primates de la tribu Papionini. El objetivo general es ...

    Contributions to the knowledge of marine heterobranch sea slugs (Mollusca: Gastropoda): Panama biodiversity and cryptic species 

    Córdoba González, Darío Eliecer (Date of defense: 2022-07-18)

    The biodiversity of a country is part of its natural wealth and the study of it is fundamental for a scientific researcher, such is the case of the Panamanian marine coasts in which there has not been an exhaustive taxonomic ...

    De l'ecologia del comportament a la demografia: lliçons per a la conservació del sisó comú (Tetrax tetrax) = From behavioral ecology to demography: lessons for the little Bustard (Tetrax tetrax) conservation 

    Cuscó Martinez, Francesc (Date of defense: 2019-01-11)

    La conservació de les espècies amenaçades requereix entendre els factors que determinen la selecció de l’hàbitat, la supervivència i la productivitat de les seves poblacions. Sota l’actual context d’intensificació agrícola, ...

    Diversity, ecology and evolution of feather mites in seabirds = Diversidad, ecología y evolución de los ácaros de las plumas en aves marinas 

    Mihaela Stefan, Laura (Date of defense: 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 all avian groups. ...

    The expanding tree-nesting Bonelli´s eagle (Aquila fasciata) population of southern Portugal 

    Dias, Andreia Suzana Ribeiro e Cota de Pinho (Date of defense: 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 – behaviour that ...

    Invasiones biológicas en ambientes marinos tropicales: El caso del pez león (Pterois volitans) 

    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 ...

    New contributions to the ecology of gelatinous zooplankton in the Western Mediterranean: abundance, distribution and diversity 

    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 ...

    Patrones de comportamiento y perfiles de personalidad en el delfín mular (Tursiops truncatus), y su utilidad como herramienta de manejo en cautividad 

    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, ...

    Spatial ecology and migration of Calonectris shearwaters: new insights from Spanish populations revealed by biologging 

    Reyes González, José Manuel de los (Date of defense: 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 of the Cory’s and ...

    Systematics of Nearctic and Neotropical Oak Gall Wasps (Hymenoptera: Cynipidae: Cynipini), with a focus on specific genera in the fauna of Mexico 

    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 ...

    Taxonomic review of oak cynipid inquilines (Hymenoptera: Cynipidae), with special attention to the New World fauna and an approach to their global phylogeny 

    Lobato Vila, Irene (Date of defense: 2021-03-23)

    The oak cynipid inquilines (Hymenoptera: Cynipidae: Synergini, Ceroptresini) are a group of specialized endophytophagous microhymenopterans that develop inside galls induced mainly by other cynipids on Fagaceae trees, ...

    Taxonomical revision of subfamily Anacharitinae (Hymenoptera: Cynipoidea: Figitidae) 

    Mata Casanova, Noel (Date of defense: 2018-04-18)

    Superfamily Cynipoidea (Hymenoptera: Apocrita) includes two very different groups of organismes. Macrocynipoids is a paraphyletic group of parasitoids of wood-bearing beetle larvae, characterized by its big size, and with ...

    Testing the hypothesis of adaptive radiation and its eco-phenotypic implications 

    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 ...

    Tracking historical changes in the trophic ecology of the green turtle "Chelonia mydas" in the Hawaiian Islands 

    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 ...