CREAF Talks

Biweekly researcher forum, which offer an opportunity for researchers in ecology to present and discuss their work

CREAF runs an annual programme of seminars that showcase the global research work in the field of ecological science both within and beyond our centre. ​Each seminar normally lasts 30-40 minutes with plenty of time afterwards for questions and discussion. Seminars are usually on Wednesday at 3 pm.

Our free seminar programme is open to everyone.  For more information, please email CREAF Talks coordinator  anna.avila@uab.cat

 

Ongoing Seminars

February 27th, 2019 - 

Josep Anton MorguíLAO-ICTA-UAB, BEECA-UB.

"From hydrological catchments to atmospheric basins"

Summary

From the hydrological catchments to the atmospheric basins, Part I: A conceptual rupture?" tries to elaborate different approaches to understand how the research from the "land surface / atmosphere interactions" concept is integrated and scaled towards the results obtained by Earth Observation Systems (EOS). This introduces a discussion about why Earth observation from space seeks the highest resolution, no matter it may or it may not match the scale of "case studies" in the landscape structure. Research in the LAO-Lab provides examples to contribute to the discussion about the concepts underlying the research with EOS and about how to integrate it in distinct hydrological or atmosferic dynamics (i.e., questions about euclidean / lagrangian visions, about transect-based measures for geo-locating point-sources / point-based measures for locating diffuse-source areas, about seasonal and daily variability studied in extensive ecosystems and agro-systems / temporal variability and spatial complexity studied in cities and mountain sites, among other issues).

Biography

JosepAnton Morguí Castelló is a senior scientist at the Institute of Environmental Sciences and Technologies of the Autonomous University of Barcelona (ICTA-UAB) and associate professor at the Department of BEECA (Evolutionary Biology, Ecology and Environmental Sciences) of the University of Barcelona. Since 1983 his work topics have been related to flows through interfaces in aquatic systems and between ecosystems, with reference to the biogeochemical cycle of carbon and nutrients, such as phosphate and nitrogen compounds, together with a strong interest in the physical and chemical structure of ecosystems subject to high variability in the redox potential and the pH. JA Morguí continues this research by extending it to the Land, Atmosphere and Ocean interactions (sources, transport and biogeochemical behaviour of oxidized vs. reduced gases -O, C and N and their reactivity processes according to the acidity / basicity and to the redox potential of the environment). Since 2003, his work focuses on the atmospheric part of the carbon cycle, inrelation to climate dynamics, through studies on airborne platforms (VOLARE, ICARO, ICARO-2), high towers -Background Tall Towers- (in European projects CARBOEUROPE-IP, GEOMON, IMECC) or both (intereg: FLUXPYR), on a regional scale or on river basins.  Currently (2018-2019), the GHG’s measurements in cities are carried out with mobile instrumentation (mounted in cars) in the city of Barcelona (JSUN-CH4 project, a Joint Research with five European cities, in addition to Toronto in Canada), for the determination of leaks and emissions of methane in the natural gas distribution network, in the sewerage network and in water and solid waste treatment plants. Cartography of methane concentrations was already carried out in 2012 over the rice fields of the Ebre River Delta. Seven years later a reprise of the survey (DeltaSpider, 2019) includes a larger area to determine spatial and temporal long-term changes in both the environment and management.

March 13th, 2019 - 

Montserrat VilàEstación Biológica de Doñana.

"Impacts and risk analysis of biological invasions"

Summary

Biological invasions occur when species are introduced by humans beyond their natural dispersal ranges, establishing and spreading in a the region. Indeed, many introduced species are more competitive than native species, they might escape from natural enemies, and modify the environment. Some introduced species cause ecological impacts and can affect socioeconomic sectors such as forestry, agriculture or public health. I will present some synthesis work on the impacts of invasive plant species. From the management and policy perspective it is important to identify which invasive species are causing, or have the potential to cause, major impacts. I will present some risk assessment protocols we have developed, and discuss their applications.

Biography

My research focuses on the ecology of biological invasions, especially in Mediterranean ecosystems including islands. In collaboration with a large international network of ecologists we conduct field experiments, extensive field surveys and the analysis of large datasets to improve our understanding on the ecology of non-native species, to develop risk analysis of invasions, and to mitigate their impacts.
Main areas of study include landscape and environmental factors associated to invasions, biotic factors controlling non-native plant establishment and ecological and economic impacts of biological invasions. Our work contributes to quantify the ecological impacts of biological invasions on biodiversity and ecosystem functioning. We are committed to identify the most impacted habitats and the traits of non-native species conferring major changes in ecosystem services. With this information we develop Impact Risk Assessments for major invaders in Europe.

Past seminars