1. Penetration and effects of solar UV-B on phytoplankton and macroalgae

   • D.-P. Häder

   OriginalPaper Pages: 5 - 13

2. UV damage to plant life in a photobiologically dynamic environment: the case of marine phytoplankton

   • W.W.C. Gieskes
   • A.G.J. Buma

   OriginalPaper Pages: 17 - 25

3. Effects of acute and chronic UV-B exposure on a green alga: a continuous culture study using a computer-controlled dynamic light regime

   • A. Veen
   • M. Reuvers
   • P. Ronçak

   OriginalPaper Pages: 29 - 40

4. Role of ultraviolet-B radiation on bacterioplankton and the availability of dissolved organic matter

   • Gerhard J. Herndl
   • Albert Brugger
   • Doris Slezak

   OriginalPaper Pages: 43 - 51

5. Physiological and structural changes in the chloroplast of the green alga Micrasterias denticulata induced by UV-B simulation

   • Cornelius Lütz
   • Harald K. Seidlitz
   • Ursula Meindl

   OriginalPaper Pages: 55 - 64

6. Uses of biological spectral weighting functions and the need of scaling for the ozone reduction problem

   • Martyn M. Caldwell
   • Stephan D. Flint

   OriginalPaper Pages: 67 - 76

7. Outdoor supplementation systems for studies of the effects of increased UV-B radiation

   • A.R. McLeod

   OriginalPaper Pages: 79 - 92

8. In assessing biological UV-B effects, natural fluctuations of solar radiation should be taken into account

   • Regas Santas
   • A. Koussoulaki
   • D.-P. Häder

   OriginalPaper Pages: 93 - 97

9. Beneficial effects of enhanced UV-B radiation under field conditions: improvement of needle water relations and survival capacity of Pinus pinea L. seedlings during the dry Mediterranean summer

   • Yiannis Manetas
   • Yiola Petropoulou
   • George Karabourniotis

   OriginalPaper Pages: 101 - 108

10. Ultraviolet-B radiation effects on the Mediterranean ruderal Dittrichia viscosa

    • M. Stephanou
    • Y. Manetas*

    OriginalPaper Pages: 109 - 112

11. Effects of solar UV-B radiation on growth, flowering and yield of central and southern European bush bean cultivars (Phaseolus vulgaris L.)

    • M. Saile-Mark
    • M. Tevini*

    OriginalPaper Pages: 115 - 125

12. Morphological and physiological responses of bean plants to supplemental UV radiation in a Mediterranean climate

    • F. Antonelli
    • D. Grifoni
    • G. Zipoli

    OriginalPaper Pages: 127 - 136

13. The effect of enhanced ultraviolet-B radiation on germination and seedling development of plant species occurring in a dune grassland ecosystem

    • Marcel Tosserams
    • Esther Bolink
    • Jelte Rozema

    OriginalPaper Pages: 139 - 147

14. Leaf thickness and UV-B absorbing pigments of plants in relation to an elevational gradient along the Blue Mountains, Jamaica

    • Jelte Rozema
    • Agnes Chardonnens
    • Sampurno Bruijnzeel

    OriginalPaper Pages: 151 - 159

15. Reaction of savanna plants from Botswana on UV-B radiation

    • Wilfried H.O. Ernst
    • Jos W.M. van de Staaij
    • Hans J.M. Nelissen

    OriginalPaper Pages: 163 - 170

16. The impact of elevated UV-B (280–320 nm) radiation levels on the reproduction biology of a highland and a lowland population of Silene vulgaris

    • J.W.M. van de Staaij
    • E. Bolink
    • W.H.O. Ernst

    OriginalPaper Pages: 173 - 179

17. Effects of UV-B radiation on terrestrial plants and ecosystems: interaction with CO₂ enrichment

    • J. Rozema
    • G. M. Lenssen
    • R. A. Broekman

    OriginalPaper Pages: 183 - 191

18. Effects of increasing UV-B radiation and atmospheric CO₂ on photosynthesis and growth: implications for terrestrial ecosystems

    • Joe H. Sullivan

    OriginalPaper Pages: 195 - 206

19. The combined effects of CO₂ concentration and enhanced UV-B radiation on faba bean. 3. Leaf optical properties, pigments, stomatal index and epidermal cell density

    • A. J. Visser
    • M. Tosserams
    • J. Rozema

    OriginalPaper Pages: 209 - 222

20. Effects of solar ultraviolet-B radiation, temperature and CO₂ on growth and physiology of sunflower and maize seedlings

    • U. Mark
    • M. Tevini*

    OriginalPaper Pages: 225 - 234

21. Combined effects of enhanced UV-B radiation and nitrogen deficiency on the growth, composition and photosynthesis of rye (Secale cereale)

    • Gaby Deckmyn
    • Ivan Impens

    OriginalPaper Pages: 235 - 240

22. Effects of enhanced UV-B radiation and elevated carbon dioxide concentrations on a sub-arctic forest heath ecosystem

    • D. Gwynn-Jones
    • J. A. Lee
    • T. V. Callaghan

    OriginalPaper Pages: 243 - 249

23. The effects of UV-B radiation on European heathland species

    • L. O. Björn
    • T. V. Callaghan
    • M. Stephanou

    OriginalPaper Pages: 253 - 264

24. Differential effects of elevated ultraviolet-B radiation on plant species of a dune grassland ecosystem

    • Marcel Tosserams
    • Erwin Magendans
    • Jelte Rozema

    OriginalPaper Pages: 267 - 281

25. Stratospheric ozone reduction and ecosystem processes: enhanced UV-B radiation affects chemical quality and decomposition of leaves of the dune grassland species Calamagrostis epigeios

    • J. Rozema
    • M. Tosserams
    • N. Flierman

    OriginalPaper Pages: 285 - 294

26. The role of interactions between trophic levels in determining the effects of UV-B on terrestrial ecosystems

    • Nigel D. Paul
    • Sharima Rasanayagam
    • Peter G. Ayres

    OriginalPaper Pages: 297 - 308