Australian Freshwater Ecology : Processes and Management » książka
Australian Freshwater Ecology : Processes and Management
ISBN-13: 9781118568224 / Angielski / Miękka / 2014 / 392 str.
Australian Freshwater Ecology : Processes and Management
ISBN-13: 9781118568224 / Angielski / Miękka / 2014 / 392 str.
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As pressures on Australia's inland waters intensify from population growth, expanding resource development and climate change, there is an urgent need to manage and protect these special areas. This title describes the physical, chemical and biological features of wetlands, lakes, streams, rivers and groundwaters in Australia.
About this book, xi
About the companion website, xii
PART I: PROCESSES IN AQUATIC ECOSYSTEMS, 1
1 Australian waters: diverse, variable and valuable, 3
1.1 The challenge for aquatic ecologists, 3
1.2 Defi ning some common terms, 6
1.3 Australian inland waters: their diversity and distribution, 6
1.4 The water regime: where, when and to what extent water is present , 7
1.4.1 Water budgets, scale issues and human influences on water regimes, 7
1.4.2 Components of the water regime, 8
1.4.3 Water regime variability, 9
1.5 Linkages in aquatic ecosystems: from molecular bonds to global exchanges, 11
1.5.1 Wonderful water and its molecular linkages, 11
1.5.2 Linkages at the catchment scale, 12
1.5.3 Linkages at the global scale: the hydrological cycle, 13
1.5.4 Continental linkages and surface waters in Australia, 15
1.5.5 Continental linkages and groundwaters in Australia, 19
1.6 The structure of this book, 20
2 Physical processes in standing waters, 21
2.1 Depth and physical processes, 21
2.2 Let there be light ..., 21
2.2.1 Light reaching the water surface, 21
2.2.2 Light below the water surface, 22
2.2.3 Seeing through water: Secchi discs and quantum sensors, 24
2.3 The euphotic zone, 24
2.4 Light and life, 25
2.5 Temperature and stratification, 25
2.5.1 Causes of stratifi cation, 26
2.6 Using circulation patterns to classify standing waters, 27
2.7 Ecological implications of the different types of stratifi cation and mixing, 29
2.8 Deep versus shallow standing waters: depth matters, 31
2.8.1 How deep standing waters form, 32
2.8.2 How shallow standing waters form, 32
2.9 Synthesis, 35
3 Chemical processes in standing waters, 37
3.1 There s a certain chemistry ... , 37
3.2 Dissolved gases, 37
3.2.1 Oxygen, 38
3.2.2 Carbon dioxide, 41
3.2.3 Hydrogen, 42
3.2.4 Methane, 43
3.3 Sources of ions, 45
3.4 Ionic composition of Australian standing waters, 45
3.5 Conductivity, salinity and total dissolved solids, 45
3.6 Ionic composition and trophic state, 47
3.6.1 Some common anions, 47
3.6.2 Some common cations, 48
3.7 Redox reactions and redox potential, 50
3.8 Redox reactions and some common metals, 51
3.9 Nutrients, nutrient limitation and ecological stoichiometry, 52
3.9.1 Phosphorus, 53
3.9.2 Nitrogen, 55
3.9.3 Carbon, 58
3.10 Water regime, drying and water chemistry, 60
3.10.1 What happens to water chemistry during a wetting–drying cycle?, 60
3.11 Synthesis, 62
4 Biological processes in standing waters, 63
4.1 Biological players on a physical and chemical stage, 63
4.2 Major ecological zones and habitats, 64
4.3 Blurred boundaries and mobile assemblages, 66
4.4 Trophic groups and sources of energy, 66
4.5 Producers, 69
4.5.1 An ecological classification of producers, 72
4.5.2 Microscopic aquatic plants, 72
4.5.3 Macroscopic aquatic plants, 74
4.5.4 Plants living in water: benefits and constraints, 76
4.5.5 Alternative states: changes in plant dominance in shallow waterbodies, 77
4.6 Consumers, 80
4.6.1 Decomposers: the importance of microbes and fungi, 80
4.6.2 Invertebrate detritivores, 81
4.6.3 Invertebrate herbivores, 82
4.6.4 Invertebrate carnivores, 83
4.6.5 Vertebrate herbivores, 84
4.6.6 Vertebrate carnivores, 85
4.6.7 Predation and trophic cascades, 86
4.6.8 Trophic cascades and biomanipulation, 87
4.6.9 How vertebrates use waterbodies: linkages and subsidies, 87
4.7 Biological processes in temporary standing waters, 90
4.8 Biological processes in saline standing waters, 94
4.9 Synthesis, 95
5 Physical processes in running waters, 97
5.1 Flow and the diversity of running waters, 97
5.2 Scale, ecological hierarchies and networks, 97
5.3 A hierarchical classification of physical features, 99
5.3.1 Physical features and channel flows, 101
5.4 Hydrology and stream flow, 103
5.4.1 Measuring discharge, 103
5.4.2 Measuring current velocity, 104
5.5 Hydrographs, catchment characteristics and groundwater interactions, 106
5.6 Flow variability and its implications, 108
5.7 The physical process of transport, 110
5.7.1 The sources of sediment, 111
5.7.2 Sediment particle size and distribution, 112
5.7.3 Current velocity, erosion and transport, 113
5.7.4 Sediment dynamics and channel form, 114
5.7.5 Floodplain sedimentation and billabong formation, 115
5.8 River profi les and longitudinal changes in physical features, 118
5.9 Synthesis, 119
6 Chemical processes in running waters, 120
6.1 The complex web of factors, 120
6.2 Dissolved gases, 120
6.3 Ionic composition of Australian rivers, 123
6.4 Sources of ions, 124
6.5 Nutrients and nutrient spiralling, 126
6.5.1 Transport and retention of nutrients, 128
6.6 Carbon and organic matter, 129
6.6.1 Dissolved organic matter in rivers, 130
6.6.2 Solute processes: dissolved substances in running waters, 132
6.7 Longitudinal changes in chemical features, 133
6.8 Synthesis, 135
7 Biological processes in running waters, 136
7.1 Factors affecting biological processes at various scales, 136
7.2 Zones and habitats: parallels and contrasts with standing waters, 136
7.3 Living with flow, 138
7.4 Sources of energy in running waters, 142
7.4.1 Producers, 142
7.4.2 The distribution of different life–forms of producers, 143
7.4.3 Open–water producers in large rivers, 146
7.4.4 Classifying consumers in running waters, 146
7.4.5 Invertebrate herbivores, 147
7.4.6 Invertebrate carnivores, 149
7.4.7 Vertebrate herbivores, 150
7.4.8 Vertebrate carnivores, 151
7.4.9 Decomposers, 154
7.4.10 Functional feeding groups, 157
7.5 The fate of a dead eucalypt leaf that falls into a stream ..., 158
7.6 Conceptual models of running–water ecosystems, 160
7.7 The role of disturbance, 163
7.7.1 Post–disturbance recolonization processes, 164
7.7.2 Recolonization, dispersal and biogeography in Australian running waters, 168
7.7.3 Setting the biogeographic scene: ancient rocks, variable climates, 170
7.7.4 Some biogeographic patterns in Australian inland waters, 170
7.8 Synthesis, 173
8 Groundwater processes and management, 174
8.1 Out of sight, out of mind?, 174
8.2 An integrated definition of groundwaters, 174
8.3 Physical processes in groundwaters, 176
8.3.1 Groundwater discharge, permeability, porosity and Darcy s Law, 178
8.3.2 Physical processes between groundwaters and surface waters, 180
8.3.3 Groundwater temperature, 183
8.4 Chemical processes in groundwaters, 184
8.4.1 Principal chemical processes in groundwater, 184
8.4.2 Chemical processes along gradients of dissolved oxygen, 186
8.5 Biological processes in groundwaters, 187
8.5.1 Groundwater microbiology, 188
8.5.2 Buried treasures in Australia: groundwater invertebrates and fishes, 190
8.5.3 Biodiversity and ecology of Australian groundwater fauna, 191
8.5.4 Physical, chemical and biological drivers of groundwater ecological processes, 193
8.5.5 Groundwater–dependent ecosystems (GDEs), 195
8.6 Management issues in Australian groundwaters, 197
8.7 Ecosystem services and conservation of Australian groundwaters, 201
8.8 Synthesis, 202
PART II: MANAGEMENT OF AQUATIC ECOSYSTEMS, 205
9 Management issues: water regime, 207
9.1 When the well is dry ... , 207
9.2 Changes to water regimes by humans in Australia: a brief history, 207
9.2.1 Changing water regime, changing processes, 210
9.3 Diverse impoundments with diverse effects, 211
9.3.1 Impoundments as ecological barriers, 214
9.3.2 Impoundments and estuaries, 215
9.4 Ecological effects of water extraction, 216
9.4.1 Ecological effects of drainage and irrigation, 218
9.4.2 Ecological effects of inter–basin transfers, 219
9.4.3 Ecological effects of urbanization, 220
9.5 Water regimes and environmental watering, 221
9.5.1 Environmental watering: ecological objectives and outcomes, 223
9.5.2 Environmental watering: risks and tactics, 225
9.6 Breaking down the barriers : fishways and dam removal, 226
9.7 Synthesis, 227
10 Management issues: physical features, 229
10.1 Changing physical features, changing processes, 229
10.2 Human activities and the physical environment, 230
10.2.1 Human changes to catchments, 230
10.2.2 Human changes to basins and channels, 232
10.3 Sedimentation: a physical process with negative fallout, 235
10.3.1 Human activities and sedimentation, 236
10.3.2 Ecological effects of sedimentation, 238
10.3.3 Management of sedimentation, 239
10.4 Physical processes and land–water interfaces, 241
10.4.1 Ecological roles of fringing and riparian zones, 241
10.4.2 Threats to land–water interfaces, 243
10.4.3 Management of land–water interfaces, 245
10.5 Recovering natural physical complexity, 248
10.6 Synthesis, 249
11 Management issues: water quality, 250
11.1 What is water quality?, 250
11.2 Managing water quality, 250
11.3 Eutrophication, 253
11.3.1 Natural and anthropogenic eutrophication, 253
11.3.2 Drivers, stressors and processes of eutrophication, 253
11.3.3 Ecological impacts and effects on ecosystem services, 256
11.3.4 Management of eutrophication, 258
11.4 Salinization, 259
11.4.1 Natural and anthropogenic salinization, 259
11.4.2 Drivers, stressors and processes of salinization, 259
11.4.3 Ecological impacts and effects on ecosystem services, 261
11.4.4 Management of salinization, 262
11.5 Acidifi cation, 264
11.5.1 Natural and anthropogenic acidifi cation, 264
11.5.2 Drivers, stressors and processes of acidification, 264
11.5.3 Ecological impacts and effects on ecosystem services, 267
11.5.4 Management of acidification, 268
11.6 Pollution, 269
11.6.1 Drivers, stressors and processes of pollution, 269
11.6.2 Ecological impacts and effects on ecosystem services, 271
11.6.3 Management of pollution, 273
11.7 Water quality guidelines, 274
11.8 Monitoring and assessing water quality, 275
11.8.1 Condition monitoring, 275
11.8.2 Detecting environmental impacts, 277
11.9 Multiple stressors and models of ecosystem change, 277
11.10 Synthesis, 279
12 Management issues: biodiversity conservation and climate change, 281
12.1 What is biodiversity and why does it need conservation?, 281
12.1.1 Setting priorities in biodiversity conservation, 281
12.2 Aquatic landscapes: networks and mosaics of habitats, 283
12.3 Protected areas for conserving freshwater communities, 284
12.4 Having good connections: dispersal and connectivity in conservation, 286
12.5 Protecting refuges to conserve aquatic communities, 287
12.6 Conserving aquatic species and populations, 288
12.6.1 The special challenge of conserving species with complex life histories, 288
12.6.2 The spatial extent of populations and metapopulations, 289
12.6.3 What are Evolutionarily Significant Units ?, 289
12.6.4 Hidden biodiversity: cryptic species, 290
12.6.5 Endemic species and relictual faunas, 290
12.7 Threatened communities and species, 291
12.8 In the wrong place: exotic aquatics and invasive species, 293
12.8.1 Invasive predators and competitors, 294
12.8.2 Domestic and hybridizing invasive aquatic species, 294
12.8.3 Invasive ecosystem engineers , 297
12.8.4 Potential effects of climate change on aquatic invasive species, 298
12.9 Climate change and Australian aquatic ecosystems, 299
12.9.1 Effects of increased water temperature, 300
12.9.2 Effects of changes to the hydrological cycle and water regimes, 300
12.9.3 Effects of sea–level rise, 301
12.9.4 Effects of changes to atmospheric conditions, 302
12.9.5 Effects of reduced snow cover and alpine warming, 302
12.9.6 How do these climatic changes affect freshwater species and ecosystems?, 302
12.9.7 Planned adaptation to climate change in aquatic ecosystems, 305
12.10 Synthesis, 307
13 Integrating ecology and management: a synthesis, 308
13.1 The big picture : integrating ecology and management, 308
13.2 The bigger picture : integrating social, economic and political goals, 309
13.3 Strategic adaptive management in aquatic ecology, 311
13.4 Resolving conflicts in freshwater management: a role for aquatic ecologists?, 313
13.5 Future challenges and opportunities: where to from here?, 315
13.6 Synthesis, 319
References, 321
Index, 347
Andrew J. Boulton, University of New England, Armidale, Australia
Margaret A. Brock, University of Tasmania, Tasmania, Australia
Belinda J. Robson, Murdoch University, Murdoch, Australia
Darren S. Ryder, University of New England, Armidale, Australia
Jane M. Chambers, Murdoch University, Murdoch, Australia
Jenny A. Davis, University of Canberra, Canberra, Australia
As pressures on Australia s inland waters intensify from population growth, expanding resource development and climate change, there is an urgent need to manage and protect these special areas. Understanding their ecology underpins their wise management and conservation.
Australian Freshwater Ecology vividly describes the physical, chemical and biological features of wetlands, lakes, streams, rivers and groundwaters in Australia. It presents the principles of aquatic ecology linked to practical management and conservation, and explains the causes, mechanisms, effects and management of serious environmental problems such as altered water regimes, eutrophication, salinization, acidification and
sedimentation of inland waters.
Key features:
- contributions from a diverse, highly qualified team of aquatic ecologists whose expertise
spans the ecology and management of standing and running waters in Australia
sections covering groundwaters, biodiversity, temporary and tropical waters, climate
change, invasive species and freshwater conservation
numerous Australian case–studies and guest text–boxes showing management in practice
concise descriptions of ecological processes and conceptual models illustrated with
original, high– quality diagrams and photographs
Readable and logically structured, this text supports undergraduate and postgraduate courses in aquatic ecology and management. It is a valuable reference for consultants, restoration ecologists, water resource managers,
science teachers, and other professionals with an interest in the ecology of surface and groundwaters.
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