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DTSTART;TZID=Europe/Madrid:20260619T100000
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DTSTAMP:20261018T164010Z
CREATED:20260617T052135Z
LAST-MODIFIED:20261018T164010Z
UID:14100-1781863200-1781870400@idaea.csic.es
SUMMARY:PhD Thesis Defence by María Paula Carrillo
DESCRIPTION:The predoctoral researcher María Paula Carrillo\, from the Marine and Polar Microbes and Pollutants group\, will defend her thesis on 19th June at 10:00h in UPC Aula 212 Edificio/módulo C2. \nDirectors: Maria Vila-Costa and Carlos Barata \nThesis Committee: Carles Borrego\, Elienda Balleste and Melissa Faria \nAbstract:\nAquatic ecosystems accumulate complex mixtures of legacy and emerging pollutants\, yet current ecotoxicological approaches often fail to capture the effects of realistic\, chronic exposures. This thesis investigates whether invertebrate-associated microbiomes can serve as sensitive indicators of pollution across freshwater and marine environments. Using laboratory and field studies on diverse invertebrate species\, microbiome responses were assessed through 16S rRNA sequencing alongside chemical\, physiological\, and omics analyses. Pollutant exposure consistently altered host-associated microbiomes\, often more strongly than environmental microbial communities. Although no universal microbial indicator was identified\, recurring taxa and functional traits emerged within ecological contexts\, highlighting microbiomes as promising bioindicators for next-generation aquatic biomonitoring.
URL:https://idaea.csic.es/event/phd-thesis-defence-by-maria-paula-carrillo/
CATEGORIES:Thesis Defence
ATTACH;FMTTYPE=image/png:https://idaea.csic.es/wp-content/uploads/2026/10/phd_mapis.png
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DTSTART;TZID=Europe/Madrid:20260619T103000
DTEND;TZID=Europe/Madrid:20260619T123000
DTSTAMP:20261018T164003Z
CREATED:20260602T053239Z
LAST-MODIFIED:20261018T164003Z
UID:14098-1781865000-1781872200@idaea.csic.es
SUMMARY:PhD Thesis Defence by Loujain Alharfouch
DESCRIPTION:The predoctoral researcher Loujain Alharfouch\, from the Surface Hydrology\, Ecology and Erosion group\, will defend her thesis on 19th June at 10:30h in Escola Tècnica Superior d’Enginyeria de Camins\, Canals i Ports de Barcelona (UPC\, Campus Nord Building C1. Classroom: 002) \nDirectors: Jérôme Latron\, Juan J. Hidalgo and Maarten Willem \nThesis Committee: Natalie Orlowski\, Adrià Barbeta and Jean Vaunat \nAbstract:\nEcohydrology provides a key framework for understanding interactions between vegetation and the hydrological cycle\, particularly in forest ecosystems that regulate water fluxes and ecosystem resilience. In Mediterranean mountain regions\, increasing climate variability and recurrent droughts are pushing forests close to their hydraulic limits\, while uncertainties remain regarding how trees access and use water under contrasting environmental conditions. \nThis thesis investigates tree water uptake dynamics in Scots pine (Pinus sylvestris L.) in the Vallcebre experimental catchments (NE Spain) through the integration of high-resolution field observations\, stable water isotopes\, and process-based modeling. Results show that during droughts\, tree water use is strongly constrained by soil water availability\, with trees relying primarily on winter-recharged soil water and internal stem water storage. Summer rainfall contributed to tree water uptake only after sustained soil rewetting\, highlighting the critical importance of winter precipitation for maintaining tree hydraulic functioning in Mediterranean montane forests. \nBuilding on these findings\, a physics-based\, calibration-free root water uptake parameterization was developed and successfully reproduced soil water dynamics\, outperforming commonly used empirical approaches. Independent isotope-based validation confirmed the robustness of the proposed framework. Overall\, the integration of ecohydrological observations\, stable isotopes\, and process-based modeling provides a consistent and reliable approach for improving our understanding and representation of tree water uptake processes. \n 
URL:https://idaea.csic.es/event/phd-thesis-defence-by-loujain-alharfouch/
CATEGORIES:Thesis Defence
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