| title: |
Impact of climatic change on shallow lake ecosystems |
| reg no: |
SF0362480s03 |
| project type: |
targeted financing |
| subject: |
1.10-1.16. Bio-Geo Sciences
|
| status: |
accepted |
| institution: |
Institute of Zoology and Botany at Estonian University of Life Sciences |
| head of project: |
Tiina Nõges |
| duration: |
01.01.2003 - 31.12.2007 |
| description: |
It is planned to study the mechanisms through which climate change affects the ecosystems of large shallow lakes, first of all those of Võrtsjärv and Peipsi, and to identify the components most susceptible to climate change. The study is basing on the existing large-scale cooperation network involving Estonian (University of Tartu, Tallinn Technical University) and foreign European partners (EC projects MANTRA-East & CLIME). Remote sensing will be applied to study spatial distribution and variability of phytoplankton and macrophytes. The ecological status of lakes Võtsjärv and Peipsi ca 200 years ago will be reconstructed using paleolimnological methods. The climate impact on cyanobacterial dinitrogen fixation and on the transformation of nutrients (N, P) in lake sediments will be studied. The role of fish larvae, zooplankton, phytoplankton and bacteria in pelagic food web will be specified. The impact of temperature and light on nutrient cycling and food web components will be studied in climate chamber experiments. To estimate how the timing of the fish larvae hatching affects zooplankton dynamics, growth rates of these organisms will be modelled on the basis of water temperature and species-specific temperature dependence. To assess the impact of winter and spring temperatures, numerical models of ice dynamics and water temperature will be concerned. The impact of various climatic and nutrient loading scenarios on the system L. Võrtsjärv ¿ R. Emajõgi ¿ L. Peipsi will be predicted using an ecosystem model. |
| project group |
| no |
name |
institution |
position |
|
| 1. | Helen Agasild | Institute of Zoology and Botany at Estonian University of Life Sciences | doktorant, teadur | |
| 2. | Tõnu Feldmann | Institute of Zoology and Botany at Estonian University of Life Sciences | doktorant, teadur | |
| 3. | Ain Järvalt | Institute of Zoology and Botany at Estonian University of Life Sciences | teadur, doktorant | |
| 4. | Kersti Kangro | TÜ & EPMÜ ZBI | doktorant, teadur | |
| 5. | Anu Kisand | Institute of Zoology and Botany at Estonian University of Life Sciences | teadur | |
| 6. | Teet Krause | TÜ & EPMÜ ZBI | doktorant, teadur | |
| 7. | Marju Kägu | Institute of Zoology and Botany at Estonian University of Life Sciences | magistrant, laborant | |
| 8. | Alo Laas | Institute of Zoology and Botany at Estonian University of Life Sciences | magistrant, laborant | |
| 9. | Evi Lill | Institute of Zoology and Botany at Estonian University of Life Sciences | vanemlaborant | |
| 10. | Helen Luup | Institute of Zoology and Botany at Estonian University of Life Sciences | magistrant, laborant | |
| 11. | Peeter Nõges | Institute of Zoology and Botany at Estonian University of Life Sciences | vanemteadur | |
| 12. | Tiina Nõges | Institute of Zoology and Botany at Estonian University of Life Sciences | vanemteadur | |
| 13. | Kaili Preismann | Institute of Zoology and Botany at Estonian University of Life Sciences | magistrant, laborant | |
| 14. | Jaana Salujõe | Institute of Zoology and Botany at Estonian University of Life Sciences | magistrant, laborant | |
| 15. | Priit Zingel | Institute of Zoology and Botany at Estonian University of Life Sciences | teadur | |
| 16. | Helen Tammert | Institute of Zoology and Botany at Estonian University of Life Sciences | doktorant, teadur | |
| 17. | Lea Tuvikene | Institute of Zoology and Botany at Estonian University of Life Sciences | teadur | |
| 18. | Ilmar Tõnno | Institute of Zoology and Botany at Estonian University of Life Sciences | doktorant, teadur | |