Lakes and snails: environment and gastropoda in 1500 Norwegian lakes, ponds and rivers
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Oegstgeest
Backhuys
1990
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | 516 S. zahlr. graph. Darst. |
| ISBN: | 9073348021 |
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Datensatz im Suchindex
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| adam_text | LAKES and SNAILS
Environment and Gastropoda
in 1,500 Norwegian lakes,
ponds and rivers
JAN 0KLAND
Contents
Abstract 14
Preface 15
1 Introduction 17
1 1 Regional limnology and ecological zoogeography 17
1 2 Distribution patterns of freshwater animals and plants in relation to immigration history 18
1 3 Practical aspects related to the study of environmental parameters and freshwater snails 19
1 4 Freshwater snails: a neglected group in Norway 21
2 Principles and methods 23
2 1 Geographical names, county regions and maps based on SO km squares 23
2 2 Area sampled 24
2 3 Localities sampled ! 25
2 4 Field work 27
2 5 Methods concerning the environment 28
251 Methods for measuring physical and chemical parameters in the water 28
2511 Collecting water samples 28
2512 Temperature 28
2513 Hydrogen-ion concentration (pH) 29
2514 Specific conductivity 29
2515 Total hardness, calcium and magnesium 29
2516 Chloride 30
2517 Sodium 30
2518 Water colour and turbidity 30
252 Principles for grouping of localities according to various environmental conditions 30
2521 Surface water type 30
2522 Elevation above sea level 32
2523 Geology 32
2524 Terrestrial vegetation in the surrounding area 32
2525 Macrovegetation in shallow water 32
2526 Substratum in shallow water 33
2527 Wave exposure in lakes 34
2528 Various physical and chemical factors in the water 34
2 6 Methods concerning the snails 34
261 The collecting of snails (equipment, technique, collecting efficiency) 34
262 Time-catch scale for estimating population density 36
263- Various observations of the snails in their habitats 36
264 Narcotization, preservation, dissection and other laboratory techniques 36
3 Material 39
3 1 Localities 39
3 2 Environmental data 39
3 3 The snails 39
3 4 Registration of data 40
4 Freshwater environment of Norway 45
4 1 Introduction 45
4 2 Topography, water systems and water bodies 45
421 General topography 45
422 Elevation above sea level 46
423 Watersheds and surface water types 48
424 Ecological phenomena related to topography and surface water types 53
4 3 Geology 55
431 Bedrock and superficial deposits 55
432 Ecological importance of geology 58
4 4 Climate and water temperature 60
441 Introduction 60
442 Length of winter and summer, and air temperature 61
443 Duration of ice cover on lakes 64
444 Surface temperature in 1,441 water bodies 67
445 Temperature in ten water bodies in southeastern Norway 69
446 Comparison between air and water temperature 72
447 Precipitation and run-off 76
448 Ecological importance of climate and water temperature 78
4 5 Biotic and limnofaunistic regions, and terrestrial vegetation 79
4 5 1: Different schemes of classification 79
452 Types of terrestrial vegetation surrounding the localities 80
453 Ecological phenomena related to biotic regions and terrestrial vegetation 80
4 6 Macrovegetation in shallow water 82
461 ObservationsT 82
462 Conclusions 86
463 Macrovegetation and lake types 86
464 Ecological importance of type and quantity of aquatic macrovegetation 86
4 7 Substratum in shallow water 87
471 Observations 87
472 Conclusions 88
473 Substratum and lake types 88
474 Ecological importance of substratum 89
4 8 Wave exposure in lakes 89
481 Observations 89
482 Conclusions 92
483 Ecological importance of wave exposure 92
4 9 Hydrogen-ion concentration (pH) 92
491 Introduction 92
492 Observations 92
493 Other regional studies of pH in Norwegian water bodies 95
494 Comparability of pH levels in different areas in relation to recent acidification 96
495 Discussion 97
496 Ecological importance of pH 97
4 10 Calcium and magnesium 98
4 10 1 Introduction 98
4 10 2 Total hardness 98
4 10 3 Calcium and magnesium 101
4 10 4 Estimation of concentrations of calcium and magnesium from total hardness 104
4 10 5 Other regional studies of calcium and magnesium in Norwegian waters 104
4 10 6 Discussion 107
4 10 7 Ecological importance of calcium and magnesium 109
4 11 Specific conductivity and its relation to total hardness and pH 110
4 11 1 Observations 110
4 11 2 Discussion Ill
4 11 3 Ecological importance of specific conductivity : 115
4 12 Water colour and turbidity 115
4 12 1 Observations: descriptive scale 115
4 12 2 Observations: Pt-scale 117
4 12 3 Comparison between the descriptive scale and the Pt-scale 117
4 12 4 Discussion 119
4 12 5 Ecological importance of water colour and turbidity 121
5 Relationships among main environmental parameters 123
5 1 Introduction 123
5 2 Correlations 123
5 3 Types of surface waters and pH/total hardness 125
5 4 Lakesjn southeastern Norway 129
541 Introduction- 129
542 Correlations 130
543 Elevation above sea level 131
544 Geology 135
545 Terrestrial vegetation 142
546 Macrovegetation in shallow water 146
547 Substratum in shallow water 150
548 Wave exposure 153
549 Water temperature 155
5 4 10 Hydrogen-ion concentration (pH) 157
5 4 11 Total hardness 159
5 4 12 Water colour and turbidity 161
5 5 Main relationships 163
6 Snails in fresh water — a species approach 165
6 1 Introduction 165
6 2 Species present in Norway 165
621 Lymnaea stagnalis (L ) 165
622 Lymnaea palustris (Mull ) 171
623 Lymnaea truncatula (Mull ) 175
624 Lymnaea glabra (Mull ) 181
625 Lymnaea peregra (Mull ) 184
626 Lymnaea auricularia (L ) 191
627 Myxas glutinosa (Mull ) 195
628 Physa fontinalis (L ) 198
629 Aplexa hypnorum (L ) 201
6 2 10 Planorbarius corneus (L ) 204
6 2 11 Planorbis planorbis (L ) 207
6 2 12 Planorbis carinatus Mull 209
6 2 13 Anisus leucostomus (Millet) 212
6 2 14 Bathyomphalus contortus (L ) 215
6 2 15 Gyraulus acronicus (F6russac) 220
6 2 16 Gyraulus albus (Mull ) 227
6 2 17 Gyraulus laevis (Alder) 230
6 2 18 Armiger crista (L ) 233
6 2 19 Hippeutis complanatus (L ) 239
6 2 20 Segmentina nitida (Mull ) 242
6 2 21 Ancylus fluviatilis Mull 245
6 2 22 Acroloxus lacustris (L ) 248
6 2 23 Viviparus viviparus (L ) 251
6 2 24 Valvata cristata Mull 254
6 2 25 Valvata piscinalis (MU11 ) 257
6 2 26 Valvata sibirica Middendorff 262
6 2 27 Potamopyrgus jenkinsi (Smith) 264
6 3 Association between species 268
631 Introduction 268
632 Results 268
633 Discussion 273
634 Conclusions 275
6 4 Papers with data on freshwater snails in Norway 276
7 Environment and species 277
7 1 Frequency of occurrence in different types of localities 277
711 Introduction 277
712 Statistical method 277
713 Lakes, ponds and other types of surface waters 280
714 Environmental parameters of lake habitats and the species present 282
7141 Introduction 282
7142 Elevation above sea level 282
7143 Geology 284
7144 Terrestrial vegetation in the surrounding area 287
7145 Macrovegetation in shallow water 290
7146 Substratum in shallow water 292
7147 Wave exposure 294
7148 Hydrogen-ion concentration (pH) 296
7149 Total hardness (°dH) 298
714 10 Water colour and turbidity 300
714 11 Adaptability indices for the parameters investigated 302
715 Competition 304
7151 Introduction 304
7152 Lakes 304
7153 Small water bodies 305
7154 Discussion and conclusions 308
7 2 Time-catch abundance in lakes, ponds and other surface water types 312
7 3 Altitude limits 314
7 4 pH-ranges 315
7 5 Total hardness ranges 319
8 The snail fauna in lakes, ponds and other surface water types 323
8 1 Introduction 323
8 2 Number of species 323
8 3 Total time-catch abundance 324
8 4 Comparison between number of species and total time-catch abundance 324
8 5 Discussion 325
851 Introduction 325
852 The snail fauna in various surface water types 325
853 ^Evaluation of results from different parts of Norway 328
854 Species richness in Norwegian lakes compared with other areas 329
9 The snail fauna in different lake environments 331
9 1 Introduction 331
9 2 Single factor analyses 331
921 Introduction 331
922 Number of species 331
923 Time-catch abundance 335
924 Correlations 338
925 Main trends in the relationship between the lake environment and the snail fauna 338
9 3 Combined effects and relative importance of total hardness and pH 345
931 Introduction 345
932 Presence/absence of snails 345
933 Number of species 348
934 Time-catch abundance 349
935 Partial correlations 350
9 4 The importance of total hardness and pH in lakes with the same type of macrovegetation 350
941 Introduction 350
942 Results 351
9 5 Effects of aquatic vegetation within the same levels of total hardness and pH 353
9 6 Multiple regression analyses 353
9 7 Comparisons of materials and results 355
971A test on the comparability of two lake groups 355
972 Correlations and frequency deviations 355
973 Partial correlations 355
974 Correlation coefficients and multiple regressions 355
9 8 Comparison with results from other studies 356
981 Introduction 356
982 Single factor analyses 356
9821 Introduction 356
9822 Total hardness • 356
9823 Aquatic macrovegetation 359
9824 pH 359
9825 Substratum in shallow water 360
9826 Geology 361
9827 Terrestrial vegetation 361
9828 Wave exposure 362
9829 Elevation above sea level 362
982 10 Water temperature and water colour/turbidity 362
983 Combined effects and relative importance of total hardness and pH 363
984 Multiple regression analyses 363
9 9 Conclusions 364
991 Single factor analyses 364
992 The relative importance of total hardness and pH 364
993 Effects of total hardness and pH within the same type of aquatic vegetation 365
994 Effects of aquatic vegetation within the same levels of total hardness and pH 365
995 Multiple regression analyses 365
10 Lake types and snails — a study in cluster analyses 367
10 1 Introduction 367
10 2 Lakes below 500 m altitude 369
10 2 1 Five-parameter analysis 369
10 2 2 Seven-parameter analysis 374
10 2 3 Some comparisons 378
10 3 Lakes above 500 m altitude 380
10 3 1 Five-parameter analysis 380
10 3 2 Seven-parameter analysis 384
10 3 3 Some comparisons 387
10 4 Summary of main results 388
10 5 Discussion 389
10 5 1 Introduction 389
10 5 2 Lake types: geology as main factor 389
10 5 3 Terrestrial vegetation 390
10 5 4 Calcium (total hardness) 391
10 5 5 Hydrogen-ion concentration (pH) 391
10 5 6 Aquatic vegetation 392
10 5 7 Snail fauna 393
10 6 Conclusions 393
11 Geographical distribution of freshwater snails in Norway 395
11 1 Introduction 395
11 2 Distribution types of snail species 395
11 2 1 All-Norwegian species 395
11 2 2 Northern species 395
11 2 3 Western species 395
11 2 4 Eastern species 396
11 2 5 Southern species 396
11 251 Southern species extending north up to Tr0ndelag 396
11 252 Southern species absent north of the valley Gudbrandsdalen 397
11 253 Southern/southeastern species of moderate frequency of occurrence 397
11 254 Southern/southeastern species of very low frequency of occurrence 397
11 3 Discussion of distribution types 399
11 3 1 All-Norwegian species 399
11 3 2 Northern species 400
11 3 3 Western species 400
11 3 4 Eastern species 400
11 3 5 Southern species 401
11 4 Number of species 403
11 4 1 Number of species in counties and grid squares 403
11 4 2 Main areas defined by species number 405
11 5 Total time-catch abundance 409
11 6 Comparison of number of species and total time-catch abundance 412
11 7 Discussion of geographical variation in number of species 412
11 7 1 Introduction 412
11 7 2 Oslo-Mandal-Jaeren 413
11 7 3 Bergen 415
11 7 4 Trondheim 416
11 7 5 Finnmarksvidda-Pasvik in northeastern North Norway 417
11 7 6 The central belt in South Norway 418
11 7 7 The Swedish border belt in South Norway 419
11 7 8 Large parts of western South Norway 419
11 7 9 Acid south 420
11 7 10 R0st — the island with greatest distance to the mainland 420
11 7 11 Bod0-Troms0 420
11 8 Discussion of geographical variation in snail abundance 421
12 General overview and discussion 423
12 1 Introduction 423
12 2 Dispersal abilities and post-glacial immigration of freshwater snails 424
12 3 Significance of environmental factors 427
12 3 1 Introduction 427
12 3 2 Surface water types 429
12 3 3 Effects of environmental factors in lakes 430
12 331 Similarity in environmental requirements 430
12 332 Calcium and magnesium 431
12 333 Hydrogen-ion concentration (pH) 432
12 334 Aquatic macrovegetation and the diets of freshwater snails 433
12 335 Substratum, wave exposure, water temperature and other factors 436
12 3 4 Factor interactions 437
12 341 Interactions between calcium and pH 438
12 342 Other interactions 439
12 3 5 Competition 439
12 3 6 Predators and parasites 440
12 3 7 Adaptations 441
12 4 Final considerations 441
13 Summary and conclusions 445
13 1 Introduction 445
13 2 -13 3 Material and methods 445
13 4 Freshwater environment of Norway 445
13 4 1 Topography, water systems and water bodies 445
13 4 2 Geology 446
13 4 3 Climate and water temperature 446
13 4 4 Biotic and limnofaunistic regions, vegetation, substratum, and wave exposure 447
13 4 5 Hydrogen-ion concentration (pH) 447
13 4 6 Calcium and magnesium 447
13 4 7 Specific conductivity and its relationship to total hardness and pH 448
13 4 8 Water colour and turbidity 449
13 5 Relationships among main environmental parameters 449
13 5 1 Correlations and their interpretation 449
13 5 2 Main relationships 450
13 6 Snails in fresh water — a species approach 450
13 7 Environment and species 451
13 7 1 Frequency of occurrence in different types of localities 451
13 711 Introduction 451
13 712 Surface water type 451
13 713 Environmental parameters of lake habitats and the species present 451
13 714 Competition 452
13 7 2 Snail abundance and some niche dimensions 452
13 8 The snail fauna in lakes, ponds and other surface water types 453
13 9 The snail fauna in different lake environments 453
13 9 1 Single factor analyses 453
13 9 2 Combined effects and relative importance of total hardness and pH 454
13 9 3 Effects of total hardness and pH within the same type of aquatic vegetation 454
13 9 4 Multiple regression analyses 455
13 10 Lake types and snails — a study in cluster analyses 455
13 10 1 Introduction 455
13 10 2 Lakes below 500 m altitude 455
13 10 3 Lakes above 500 m altitude 456
13 10 4 General conclusions 456
13 11 Geographical distribution of freshwater snails in Norway 456
13 11 1 Distribution types t 456
13 11 2 The number of snail species present in different areas 457
13 11 3 Snail abundance and its relation to the number of species 458
13 12 General overview and discussion 458
13 12 1 Dispersal abilities and post-glacial immigration of freshwater snails 458
13 12 2 Significance of environmental factors 459
13 12 3 Final considerations 459
14 Primary Tables 14 1-14 3 461
15 References 489
Index 509
|
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| indexdate | 2024-07-09T17:27:19Z |
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| isbn | 9073348021 |
| language | English |
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| spelling | Oekland, Jan Verfasser aut Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers Oegstgeest Backhuys 1990 516 S. zahlr. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Animaux des lacs - Norvège ram Gastéropodes d'eau douce - Norvège ram Meren gtt Slakken gtt Gastropoda Norway Lake animals Norway Wasserschnecken (DE-588)4189245-8 gnd rswk-swf Norwegen Norwegen (DE-588)4042640-3 gnd rswk-swf Norwegen (DE-588)4042640-3 g Wasserschnecken (DE-588)4189245-8 s DE-604 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005906005&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Oekland, Jan Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers Animaux des lacs - Norvège ram Gastéropodes d'eau douce - Norvège ram Meren gtt Slakken gtt Gastropoda Norway Lake animals Norway Wasserschnecken (DE-588)4189245-8 gnd |
| subject_GND | (DE-588)4189245-8 (DE-588)4042640-3 |
| title | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_auth | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_exact_search | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_full | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_fullStr | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_full_unstemmed | Lakes and snails environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| title_short | Lakes and snails |
| title_sort | lakes and snails environment and gastropoda in 1500 norwegian lakes ponds and rivers |
| title_sub | environment and gastropoda in 1500 Norwegian lakes, ponds and rivers |
| topic | Animaux des lacs - Norvège ram Gastéropodes d'eau douce - Norvège ram Meren gtt Slakken gtt Gastropoda Norway Lake animals Norway Wasserschnecken (DE-588)4189245-8 gnd |
| topic_facet | Animaux des lacs - Norvège Gastéropodes d'eau douce - Norvège Meren Slakken Gastropoda Norway Lake animals Norway Wasserschnecken Norwegen |
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