Botany; Ecology, Geography, Physiology Aerts, R., Wallén, B ...

Johanson, U. 1997. Future stratospheric ozone depletion will affect a subarctic dwarf shrub
ecosystem. PhD thesis, Lund University, Lund, Sweden, 42 pp. (A)
Johanson, U., Gehrke, C., Björn, L.O. & Callaghan, T.V. 1995. The effects of enhanced UV-B
radiation on the growth of dwarf shrubs in a subarctic heathland. Functional Ecology 9(5):
713-719.
Johanson, U., Gehrke, C., Björn, L.O., Callaghan, T.V. & Sonesson, M. 1995. The effects of
enhanced UV-B radiation on a subarctic heath ecosystem. Ambio 24(2): 106-111.
Johansson, K. 1923. Växtgeografiska spörsmål rörande den svenska Hieraciumfloran. Svensk
Botanisk Tidskrift 17(2): 175-214 Uppsala. (A)
Johansson, K. 1990. Studier av popula tionsdynamik hos Pinguiculaarter (tätört) vid Abisko
naturvetenskapliga station. Umeå Universitet. Projektarbete i botanik, 5 p., 6 pp. (A)
Johansson, L.-G. 1974. Photosynthetic rates of some vascular plants on a subarctic mire at
Stordalen. Swedish IBP Tundra Biome Project, Technical Report 16: 145-156. Lund. (A)
Johansson, L.-G. 1974. The distribution and fate of 14C photoassimilates. Swedish IBP Tundra
Biome Project, Technical Report 16: 165-172. Lund. (A)
Johansson, L.-G. 1974. Chlorophyll content of four species of vascular plant at Stordalen.
Swedish IBP Tundra Biome Project, Technical Report 16: 157-164 Lund. (A)
Johansson, L.-G. 1980. Photosynthesis of Sphagnum in different microhabitats on a subarctic
mire. Ecological Bulletins 30: 181-190. (A)
Johansson, T. & Williams, L.E. 1982. En floristisk inventering på nordsidan av Torneträsk.
Department of Systematic Botany, University of Lund, 10 pp. (A)
Jonasson, S. 1979. Studies of Betula nana shrub communities. PhD thesis, Univ. Gothenburg,
Gothenburg, Sweden, 40+45 pp. (A)
Jonasson, S. 1981. Plant communities and species distribution of low alpine Betula nana heaths in
nothernmost Sweden. Vegetatio 44: 51-64. (A)
Jonasson, S. 1982. Organic matter and phytomass on three north Swedish tundra sites, and some
connections with adjacent tundra areas. Holarctic Ecology 5: 367-375. (A)
Jonasson, S. 1983. Nutrient content and dynamics in north Swedish shrub tundra. Holarctic
Ecology 6: 295-304. (A)
Jonasson, S. 1986. Influence of frost heaving on soil chemistry and on the distribution of plant
growth forms. Geografiska Annaler 68A(3): 185-195. (A)
Jonasson, S. 1989. Implications of leaf longevity, leaf nutrient re-absorption and translocation for
the resource economy of five evergreen plant species. Oikos 56(1): 121-131. (A)
Jonasson, S. 1992. Plant responses to fertilization and species removal in tundra related to
community structure and clonality. Oikos 63(3): 420-429. (A)
Jonasson, S. 1995. Resource allocation in relation to leaf retention time of the wintergreen
Rhododendron lapponicum. Ecology 76(2): 475-485.
Jonasson, S. & Callaghan, T.V. 1992. Root mechanical properties related to disturbed and
stressed habitats in the Arctic. New Phytologist 122: 179-186. (A)
Jonasson, S., Havström, M., Jensen, M. & Callagha n, T.V. 1993. In situ mineralization of
nitrogen and phosphorus of arctic soils after perturbations simulating climate change.
Oecologia 95: 179-186. (A)
Jonasson, S., Lee, J.A., Callaghan, T.V., Havström, M. & Parsons, A.N. 1996. Direct and indirect
effects of increasing temperatures on subarctic ecosystems. Ecological Bulletins 45: 180-191.
Jonasson, S. & Michelsen, A. 1996. Nutrient cycling in subarctic and arctic ecosystems, with
special reference to the Abisko and Torneträsk region. Ecological Bulletins 45: 45-52.