Preface ......................................................... v
1 E.A. FitzPatrick. Arctic soils and permafrost ................ I
2 C.H. Robinson & P.A. Wookey. Microbial ecology,
decomposition and nutrient cycling .......................... 41
3 R.E. Longton. The role of bryophytes and lichens in polar
ecosystems .................................................. 69
4 F.S. Chapin III, J.P. McFadden & S.E. Hobbie. The role
of arctic vegetation in ecosystem and global processes ...... 97
5 R.M.M. Crawford. Habitat fragility as an aid to long-term
survival in arctic vegetation .............................. 113
6 J.S. Bale, I.D. Hodkinson, W. Block, N.R. Webb, S.C.
Coulson & A.T. Strathdee. Life strategies of arctic
terrestrial arthropods ..................................... 137
7 I. Stirling & N.J. Lunn. Environmental fluctuations in
arctic marine ecosystems as reflected by variability in
reproduction of polar bears and ringed seals ............... 167
8 D.R. Bazely & R.L. Jefferies. Trophic interactions in
arctic ecosystems and the occurrence of a terrestrial
trophic cascade ............................................ 183
9 E. Steinnes. Pathways and effects of contaminants in the
Arctic ..................................................... 209
10 S.J. Woodin. Effects of acid deposition on arctic
vegetation ................................................. 219
11 L.O. Björn, T.V. Callaghan, С. Gehrke, D. Gwynn-Jones,
B. Holmgren, U. Johanson & M. Sonesson. Effects of
enhanced UV-B radiation on subarctic vegetation ............ 241
12 W.C. Oechel, A.C. Cook, S.J. Hastings & G.L. Vourlitis.
Effects of CO2 and climate change on arctic ecosystems ..... 255
Index ......................................................... 275
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