Cotín Martínez, Javier (Date of defense: 2012-12-21)
Birds have been widely used as bioindicators. In this study we face the use of birds as bioindicators of metal pollution in two different scenarios of contamination: one that takes place in an aquatic ...
Morais Pinela, Ana (Date of defense: 2015-07-15)
Distinguishing population units of small cetaceans continuously distributed in a widespread area is challenging, but critical for their conservation and management. The common dolphin (genus Delphinus) ...
Pascual Sala, Jordi (Date of defense: 2013-10-30)
Animals have to eat a certain amount of food every day to survive. Since trophic resources are usually found in exposed locations, animals are in risk of predation while feeding, and face the well known ...
Martínez Benito, María (Date of defense: 2013-09-05)
Sex allocation (SA) refers to the proportion of resources allocated to male and female reproduction; relatedly, sex ratio (SR) refers to the numbers of each sex that are produced. Hence, their scientific ...
Mateos González, Fernando (Date of defense: 2012-09-07)
El uso de señales múltiples de calidad es común en numerosas especies, pero este hecho no es fácil de explicar. Las presiones fluctuantes del ambiente podrían tener un rol importante en el origen y ...
Mata, Luis (Date of defense: 2013-11-11)
Heteropteran bugs make an important contribution to the hyperdiversity of insects. As with other insect taxa, the proper species identification of heteropteran bugs requires diagnostic dichotomous keys. ...
Figuerola Balañá, Blanca (Date of defense: 2013-11-29)
The current thesis covers two important and poorly known aspects of Antarctic bryozoans: biodiversity and chemical ecology. The comparative analyses of diversity carried out here (Chapters 1 and 2) ...
Pita Galán, Lucía (Date of defense: 2014-05-26)
Marine sponges are a key component of benthic ecosystems in oceans all around the world, from shallow to deep waters, due to their diversity, abundance and influence in the cycle of nutrients. Moreover, ...
Santulli Sanzo, Giulla (Date of defense: 2014-11-21)
The target species of this thesis, the European mink (Mustela lutreola) and the American mink (Neovison vison), are considered respectively as one of the most threatened carnivores and as one of the ...
Sánchez Donoso, Inés (Date of defense: 2014-10-29)
The common quail (Coturnix coturnix) is a popular game bird in Europe. The massive restocking of farm-reared individuals for hunting purposes is a common practice in several European countries. Although ...