Wetland Ecology: Principles and Conservation

Framsida
Cambridge University Press, 28 sep. 2000 - 614 sidor
1 Recension
Wetlands are among the most productive and biologically diverse ecosystems on earth. Their very diversity has produced a fragmented area of study where each wetland type is considered in isolation. This work provides a synthesis of the existing field of wetland ecology using such central themes as basic characteristics of wetlands, key environmental factors that produce wetland community types, and some unifying problems such as assembly rules, restoration, and conservation. The volume draws on a complete range of wetland habitats and geographic regions including Californian vernal pools, Amazonian floodplains and Russian peat bogs. This book provides ecological syntheses over the entire geographical and habitat range of wetlands, making Wetland Ecology essential reading for anyone planning research or management in wetland habitats, regardless of specific area of interest.
 

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Innehåll

Wetlands an overview
3
Causal factors in wetland ecology
10
Wetland classification
17
Plants stress and wetland types
33
Wetland functions
55
The Pantanal
79
Zonation and succession shorelines as a prism
81
Shorelines as a model system for the study of wetlands
82
Competition
319
Testing for competition
320
Competition and field distributions
328
exploitation vs interference
334
three relevant models
337
Competition and cooperation
351
Conclusions
353
Herbivory
355

Mechanisms of zonation
87
ecological and physiological response curves
102
Empirical studies of zonation
107
On the nature and existence of communities
114
General lessons from analysis of zonation
121
Conclusions
123
Diversity
124
Dominance and diversity
125
Factors controlling the number of species in wetlands
126
a general model for herbaceous plant communities
149
Species pools and biodiversity
163
Conservation of biological diversity
171
Conclusions
172
Factors controlling properties of wetlands
175
Hydrology
177
Some biological consequences of changing water levels
184
The general relationship between wetlands and water level fluctuations
189
The ubiquity of water level fluctuations
194
the consequences of altered hydrology
221
changes in shoreline wetlands
233
frequency and intensity of flooding
236
the Amazon river basin
238
Fertility
240
Fertility and primary production
241
Fertility gradients
247
Evolution along fertility gradients
256
Mycorrhizae
259
Animals and fertility
262
too much of a good thing
265
Effects of eutrophication
271
Hydrology fertility and wetlands
278
Disturbance
281
Four properties of disturbance
282
Regeneration from buried seeds after disturbance
284
Examples of disturbance
286
Disturbance and gap dynamics in wetlands
308
Measuring the effects of disturbance
316
Comparing disturbances
317
Field observations on wildlife diets
356
Comparative studies
365
Empirical relationships
370
Field experiments
374
Some relevant theory
384
Conclusions
388
Burial
390
Rates of sedimentation
395
Effects of burial
402
Sedimentation and hydrosere succession
410
A simulation model for sediment production
412
sedimentation emergence and marsh dynamics
414
Conclusions
418
The path forward
419
Wetland restoration assembly rules in the service of conservation
421
Some background to restoration
423
Assembly rules as a foundation for restoration
427
The experimental assembly of wetlands
436
Response rules
440
Problems and prospects for restoration
445
A functional approach
447
The strategy of simplification
448
Functional classification of wetland plants
458
A general procedure for constructing functional groups
463
Functional groups in marsh plants
469
Functional types of wetlands
474
Conclusions
478
Wetland conservation management and research
479
Two perspectives on conservation
484
Priorities for action
495
setting goals and measuring performance
525
Another perspective on ecosystem management
531
a personal perspective
532
Summary
540
References
543
Index
594
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Om författaren (2000)

Paul A. Keddy, the first holder of the Schlieder Endowed Chair for Environmental Studies at Southeastern Louisiana University, has conducted wetland research as a professor of ecology for 35 years. He has published more than 100 scholarly papers on plant ecology and wetlands, as well as serving organizations such as NSF, NSERC, World Wildlife Fund and The Nature Conservancy. His first edition of Wetland Ecology: Principles and Conservation won the Society of Wetland Scientists' Merit Award.

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