Ecophysiology of Mediterranean species

1. Ecophysiology of Mediterranean species L. Serrano1, X. Aranda2, X. Fábregas3, F.X. Martínez3, A. Terricabras4 1. Dept. Enginyeria Agroalimentària i Biotecnologia. UPC. 2. Dept. Tecnologia Hortícola. IRTA. 3. Escola Superior d’Agricultura de Barcelona. 4. Àrea Metropolitana de Barcelona.

2. Seasonal variations in the ecophysiology and pheno-morphology of Mediterranean species: adjustment capacity to increasing drought and CO2. MCYT REN 2002-00633/GLO.

3. OBJECTIVES • To study the seasonal dynamics in the physiological and morphological responses of Mediterranean species. • To study the seasonal responses to water availability. • To study the responses to increased CO2 under drought.

4. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

5. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Plasticity in functional traits might be linked to species adaptive capacity. ( Norberg et al 2001)

6. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

7. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Cistus ladanifer

8. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

9. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

10. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Non-intrusive optical techniques. Chlorophyll fluorescence Spectral reflectance

11. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. PHOTOSYNTHESIS PHOTOCHEMICAL QUENCHING Chl* HEAT DISSIPATION NON-PHOTOCHEMICAL QUENCHING (xantophyll cycle) CHLOROPHYLL FLUORESCENCE low PAR

12. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. PHOTOSYNTHESIS PHOTOCHEMICAL QUENCHING Chl* HEAT DISSIPATION NON-PHOTOCHEMICAL QUENCHING (xantophyll cycle) CHLOROPHYLL FLUORESCENCE high PAR

13. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Cistus ladanifer

14. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

15. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Water Xantophyll Chlorophyll • Ratio indices = Rlabs / Rlref • Normalized indices = (Rlref – Rlabs) / (Rlref + Rlabs)

16. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

17. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

18. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

19. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

20. Seasonal dynamics in the physiological and morphological responses of Mediterranean species. Important traits determining ecosystem function may be shared by among multiple species: long history of attempts to classify species into functional groups. (However, difficult because some traits may be only expressed in one context or at one life stage)

21. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

22. Seasonal dynamics in the physiological and morphological responses of Mediterranean species.

23. Up- scaling: spectral reflectance and transmittance Serrano et al 2000a

24. Up-scaling: spectral transmittance Serrano & Peñuelas (unpublished data)

25. Up-scaling: AVIRIS reflectance Serrano et al 2000b

26. Up-scaling: AVIRIS reflectance Serrano et al 2002

27. Acknowledgements • MCYT REN 2002-00633/GLO. • MCYT Ramon y Cajal program to L. Serrano. • Àrea Metropolitana de Barcelona to A. Terricabras.