Biology of Polar Bryophytes and Lichens

Front Cover
CUP Archive, Nov 10, 1988 - Science - 391 pages
1 Review
This book reviews the biology of bryophytes and lichens in the polar tundra, where these plants may form a dominant component of the vegetation. It considers adaptation to severe environments in terms of growth form, physiology and reproduction. The role of bryophytes and lichens is discussed in vegetation processes such as colonisation and succession, and in energy flow, nutrient cycling and other functional aspects of polar ecosystems, both natural and as modified by man, The range of microclimates experience by polar cryptograms is described using an energy budget approach, and the environmental relationships of CO2 exchange, stress resistance, growth and other physiological responses are discussed against this background. Reproductive biology is also reviewed as an introduction to a consideration of population ecology, distribution patterns, dispersal potential and the origin and adaptation of polar cryptogamic floras. This book integrates the results of work in the Arctic and the Antarctic, and includes a classification of vegetation zones applicable to both polar regions. The study of plant ecology in these areas has advanced dramatically and the results synthesised here contribute to a general understanding both of polar ecosystems and of the environmental relationships of bryophytes and lichens.
  

What people are saying - Write a review

User Review - Flag as inappropriate

ffh

Contents

Soils
12
Polar bryophyte and lichen floras
23
The cryptogamic vegetation
32
Pattern process and environment
66
Pattern in polar vegetation
94
Radiation and microclimate
106
Net radiation
116
Annual temperature regimes
131
Response to plastic stress
192
Adaptation and selection
203
Vegetative growth
211
Vegetative phenology and annual growth increments
229
Environmental and inherent control of growth
246
Cryptogams in polar ecosystems
253
Reproductive biology and evolution
310
Copyright

Physiological processes and response to stress
141

Common terms and phrases

References to this book

All Book Search results »

Bibliographic information