Now showing items 68-73 of 73

    The invasion of the Argentine ant Linepithema humile in Mediterranean ecosystems: impacts and efficacy of winter aggregations extirpation as a control methods 

    Enríquez Lenis, Martha Lucía (Date of defense: 2012-12-20)

    We studied the characteristics and effects of the Argentine ant invasion on the native ants and other arthropods. Moreover, we assessed the effects of L. humile winter nest aggregations extirpation on its population dynamics. ...

    The use of pulse amplitude modulated fluorescence techniques for metal toxicity assessment in fluvial biofilms 

    Corcoll i Cornet, Natàlia (Date of defense: 2012-02-20)

    Metal pollution in rivers is in great concern with human activities in the fluvial watershed. This thesis aims to investigate the potential use of chl-a fluorescence parameters as biomarkers of metal toxicity, and to find ...

    Towards the implementation of ecosystem management: a multi-level assessment of a small scale Mediterranean multi-specific fishery 

    Dimitriadis, Caterina (Date of defense: 2015-10-16)

    Fisheries are complex systems, in which the process of assessment and management should explicitly consider the ecological, social and economic attributes of the system. For a responsible and sustainable management of ...

    Unraveling the success of invaders: biotic and abiotic factors determining the invasibility of Mediterranean benthic assemblages by Caulerpa cylindracea 

    Santamaría Pérez, Jorge (Date of defense: 2021-09-27)

    Biological invasions have become one of the most pervasive threats to native ecosystems worldwide, causing species extinctions, disrupting the functioning of ecosystems, altering the provision of critical ecosystem services ...

    Variability in the health status and reproductive traits of European sardine stocks in the Mediterranean. Implications for fishery management 

    Caballero-Huertas, Marta (Date of defense: 2023-05-26)

    Small pelagic fish play an important ecological role mainly due to their contribution in transferring energy from low to higher trophic levels. Likewise, the capture of these species is in many cases an important nutritional ...

    Zooplankton structure and dynamics in Mediterranean marshes (Empordà Wetlands): a size-based approach 

    Brucet Balmaña, Sandra (Date of defense: 2003-11-04)

    Zooplankton community structure (composition, diversity, dynamics and trophic relationships) of Mediterranian marshes, has been analysed by means of a size based approach. <br/>In temporary basins the shape of the biomass-size ...