The biology of freshwater wetlands:
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Buch |
Sprache: | English |
Veröffentlicht: |
Oxford [u.a.]
Oxford Univ. Pr.
2006
|
Ausgabe: | 1. publ. |
Schriftenreihe: | The biology of habitats series
|
Schlagworte: | |
Online-Zugang: | Inhaltsverzeichnis |
Beschreibung: | XI, 173 S. Ill. |
ISBN: | 0198525400 |
Internformat
MARC
LEADER | 00000nam a2200000 c 4500 | ||
---|---|---|---|
001 | BV019749169 | ||
003 | DE-604 | ||
005 | 20060314 | ||
007 | t | ||
008 | 050324s2006 a||| |||| 00||| eng d | ||
020 | |a 0198525400 |9 0-19-852540-0 | ||
035 | |a (OCoLC)61724331 | ||
035 | |a (DE-599)BVBBV019749169 | ||
040 | |a DE-604 |b ger |e rakwb | ||
041 | 0 | |a eng | |
049 | |a DE-M49 |a DE-634 |a DE-11 |a DE-19 | ||
050 | 0 | |a QH87.3 | |
082 | 0 | |a 577.68 |2 22 | |
084 | |a WI 4800 |0 (DE-625)148861: |2 rvk | ||
084 | |a WI 5180 |0 (DE-625)148876: |2 rvk | ||
084 | |a BIO 140f |2 stub | ||
084 | |a GEO 313f |2 stub | ||
100 | 1 | |a Valk, Arnold van der |e Verfasser |4 aut | |
245 | 1 | 0 | |a The biology of freshwater wetlands |c Arnold G. van der Valk |
250 | |a 1. publ. | ||
264 | 1 | |a Oxford [u.a.] |b Oxford Univ. Pr. |c 2006 | |
300 | |a XI, 173 S. |b Ill. | ||
336 | |b txt |2 rdacontent | ||
337 | |b n |2 rdamedia | ||
338 | |b nc |2 rdacarrier | ||
490 | 0 | |a The biology of habitats series | |
650 | 4 | |a Limnologie | |
650 | 4 | |a Écologie d'eau douce | |
650 | 4 | |a Écologie des zones humides | |
650 | 4 | |a Wetland ecology | |
650 | 4 | |a Wetlands | |
650 | 0 | 7 | |a Ökologie |0 (DE-588)4043207-5 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Ökosystem |0 (DE-588)4043216-6 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Biogeochemie |0 (DE-588)4125243-3 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Hydrobiologie |0 (DE-588)4026300-9 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Binnengewässer |0 (DE-588)4006758-0 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Feuchtgebiet |0 (DE-588)4016960-1 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Limnologie |0 (DE-588)4035769-7 |2 gnd |9 rswk-swf |
655 | 7 | |8 1\p |0 (DE-588)4151278-9 |a Einführung |2 gnd-content | |
689 | 0 | 0 | |a Limnologie |0 (DE-588)4035769-7 |D s |
689 | 0 | |5 DE-604 | |
689 | 1 | 0 | |a Feuchtgebiet |0 (DE-588)4016960-1 |D s |
689 | 1 | 1 | |a Hydrobiologie |0 (DE-588)4026300-9 |D s |
689 | 1 | |5 DE-604 | |
689 | 2 | 0 | |a Binnengewässer |0 (DE-588)4006758-0 |D s |
689 | 2 | 1 | |a Biogeochemie |0 (DE-588)4125243-3 |D s |
689 | 2 | 2 | |a Ökologie |0 (DE-588)4043207-5 |D s |
689 | 2 | |8 2\p |5 DE-604 | |
689 | 3 | 0 | |a Feuchtgebiet |0 (DE-588)4016960-1 |D s |
689 | 3 | 1 | |a Ökosystem |0 (DE-588)4043216-6 |D s |
689 | 3 | |8 3\p |5 DE-604 | |
689 | 4 | 0 | |a Feuchtgebiet |0 (DE-588)4016960-1 |D s |
689 | 4 | 1 | |a Ökologie |0 (DE-588)4043207-5 |D s |
689 | 4 | |8 4\p |5 DE-604 | |
856 | 4 | 2 | |m HBZ Datenaustausch |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=013075739&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
999 | |a oai:aleph.bib-bvb.de:BVB01-013075739 | ||
883 | 1 | |8 1\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
883 | 1 | |8 2\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
883 | 1 | |8 3\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
883 | 1 | |8 4\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk |
Datensatz im Suchindex
_version_ | 1804133219952492544 |
---|---|
adam_text | Titel: The biology of freshwater wetlands
Autor: Valk, Arnold G. van^der
Jahr: 2006
Contents
1 Introduction ?
1.1 What is a wetland? 1
1.2 Wetland classification 6
1.3 Wetland inventories 9
1.4 Summary 10
1.5 Practical experiments and observations 10
1.5.1 Wetland classification 11
2 Wetland environments 13
2.1 Physical and chemical properties of water 14
2.2 Macrophyte canopies 20
2.3 Wetland hydrology 22
2.4 Summary 30
2.5 Practical experiments and observations 30
2.5.1 Water levels 30
2.5.2 Water chemistry 31
2.5.3 Temperature and oxygen gradients 32
3 Microorganisms and invertebrates ??
3.1 Microorganisms 34
3.1.1 Bacteria 34
3.1.2 Bacterial metabolism 34
3.1.3 Dissimilatory metabolism 35
3.1.4 Assimilatory metabolism 38
3.1.5 Fungi 39
3.1.6 Algae 40
3.2 Invertebrates 44
3.2.1 Aquatic insects 49
3.3 Summary 52
3.4 Practical experiments and observations 53
3.4.1 Wetland algae 53
3.4.2 Wetland invertebrates 54
X CONTENTS
4 Wetland plants and animals 56
4.1 Wetland plants 58
4.1.1 Gas-space continuum 62
4.1.2 Heterophylly 67
4.1.3 Clonal growth 69
4.2 Birds 71
4.3 Fish 77
4.4 Amphibians, reptiles, and mammals 81
4.5 Summary 84
4.6 Practical experiments and observations 85
4.6.1 Macrophyte adaptations 85
4.6.2 Seed banks 85
4.6.3 Wedand birds 86
4.6.4 Wetland fish 86
5 Spatial and temporal patterns 87
5.1 Spatial patterns 91
5.1.1 Coenocline development 92
5.1.2 Fire 97
5.2 Temporal patterns 98
5.2.1 Macro-succession 98
5.2.2 Fluctuation versus Micro-succession 101
5.3 Development of wetland landscapes 102
5.4 Summary 107
5.5 Practical experiments and observations 107
5.5.1 Gradient analysis 107
5.5.2 Sediment cores 108
6 Wetland functions 109
6.1 Primary production 109
6.2 Litter decomposition 115
6.3 Food webs 118
6.4 Nutrient cycling 123
6.4.1 Nitrogen and sulphur cycling 129
6.4.2 Phosphorus cycling 131
6.5 Summary 132
6.6 Practical experiments and observations 133
6.6.1 Primary production 133
6.6.2 Invertebrates and litter decomposition 134
6.6.3 Methane production 134
CONTENTS X¡
7 The future of wetlands 136
7.1 Wetland losses 137
7.2 Wetland degradation and invasive species 139
7.3 Global climate change 141
7.4 Wetland restoration 143
7.5 Summary 149
GLOSSARY 150
BIBLIOGRAPHY 155
INDEX 169
|
any_adam_object | 1 |
author | Valk, Arnold van der |
author_facet | Valk, Arnold van der |
author_role | aut |
author_sort | Valk, Arnold van der |
author_variant | a v d v avd avdv |
building | Verbundindex |
bvnumber | BV019749169 |
callnumber-first | Q - Science |
callnumber-label | QH87 |
callnumber-raw | QH87.3 |
callnumber-search | QH87.3 |
callnumber-sort | QH 287.3 |
callnumber-subject | QH - Natural History and Biology |
classification_rvk | WI 4800 WI 5180 |
classification_tum | BIO 140f GEO 313f |
ctrlnum | (OCoLC)61724331 (DE-599)BVBBV019749169 |
dewey-full | 577.68 |
dewey-hundreds | 500 - Natural sciences and mathematics |
dewey-ones | 577 - Ecology |
dewey-raw | 577.68 |
dewey-search | 577.68 |
dewey-sort | 3577.68 |
dewey-tens | 570 - Biology |
discipline | Geowissenschaften Biologie |
edition | 1. publ. |
format | Book |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>02913nam a2200745 c 4500</leader><controlfield tag="001">BV019749169</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">20060314 </controlfield><controlfield tag="007">t</controlfield><controlfield tag="008">050324s2006 a||| |||| 00||| eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">0198525400</subfield><subfield code="9">0-19-852540-0</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)61724331</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV019749169</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-M49</subfield><subfield code="a">DE-634</subfield><subfield code="a">DE-11</subfield><subfield code="a">DE-19</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">QH87.3</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">577.68</subfield><subfield code="2">22</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">WI 4800</subfield><subfield code="0">(DE-625)148861:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">WI 5180</subfield><subfield code="0">(DE-625)148876:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">BIO 140f</subfield><subfield code="2">stub</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">GEO 313f</subfield><subfield code="2">stub</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Valk, Arnold van der</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">The biology of freshwater wetlands</subfield><subfield code="c">Arnold G. van der Valk</subfield></datafield><datafield tag="250" ind1=" " ind2=" "><subfield code="a">1. publ.</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Oxford [u.a.]</subfield><subfield code="b">Oxford Univ. Pr.</subfield><subfield code="c">2006</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">XI, 173 S.</subfield><subfield code="b">Ill.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">The biology of habitats series</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Limnologie</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Écologie d'eau douce</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Écologie des zones humides</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Wetland ecology</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Wetlands</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Ökologie</subfield><subfield code="0">(DE-588)4043207-5</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Ökosystem</subfield><subfield code="0">(DE-588)4043216-6</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Biogeochemie</subfield><subfield code="0">(DE-588)4125243-3</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Hydrobiologie</subfield><subfield code="0">(DE-588)4026300-9</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Binnengewässer</subfield><subfield code="0">(DE-588)4006758-0</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Feuchtgebiet</subfield><subfield code="0">(DE-588)4016960-1</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Limnologie</subfield><subfield code="0">(DE-588)4035769-7</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="655" ind1=" " ind2="7"><subfield code="8">1\p</subfield><subfield code="0">(DE-588)4151278-9</subfield><subfield code="a">Einführung</subfield><subfield code="2">gnd-content</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Limnologie</subfield><subfield code="0">(DE-588)4035769-7</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="1" ind2="0"><subfield code="a">Feuchtgebiet</subfield><subfield code="0">(DE-588)4016960-1</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2="1"><subfield code="a">Hydrobiologie</subfield><subfield code="0">(DE-588)4026300-9</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2=" "><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="2" ind2="0"><subfield code="a">Binnengewässer</subfield><subfield code="0">(DE-588)4006758-0</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="2" ind2="1"><subfield code="a">Biogeochemie</subfield><subfield code="0">(DE-588)4125243-3</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="2" ind2="2"><subfield code="a">Ökologie</subfield><subfield code="0">(DE-588)4043207-5</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="2" ind2=" "><subfield code="8">2\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="3" ind2="0"><subfield code="a">Feuchtgebiet</subfield><subfield code="0">(DE-588)4016960-1</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="3" ind2="1"><subfield code="a">Ökosystem</subfield><subfield code="0">(DE-588)4043216-6</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="3" ind2=" "><subfield code="8">3\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="4" ind2="0"><subfield code="a">Feuchtgebiet</subfield><subfield code="0">(DE-588)4016960-1</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="4" ind2="1"><subfield code="a">Ökologie</subfield><subfield code="0">(DE-588)4043207-5</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="4" ind2=" "><subfield code="8">4\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="m">HBZ Datenaustausch</subfield><subfield code="q">application/pdf</subfield><subfield code="u">http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=013075739&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA</subfield><subfield code="3">Inhaltsverzeichnis</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-013075739</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">1\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">2\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">3\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">4\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield></record></collection> |
genre | 1\p (DE-588)4151278-9 Einführung gnd-content |
genre_facet | Einführung |
id | DE-604.BV019749169 |
illustrated | Illustrated |
indexdate | 2024-07-09T20:05:15Z |
institution | BVB |
isbn | 0198525400 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-013075739 |
oclc_num | 61724331 |
open_access_boolean | |
owner | DE-M49 DE-BY-TUM DE-634 DE-11 DE-19 DE-BY-UBM |
owner_facet | DE-M49 DE-BY-TUM DE-634 DE-11 DE-19 DE-BY-UBM |
physical | XI, 173 S. Ill. |
publishDate | 2006 |
publishDateSearch | 2006 |
publishDateSort | 2006 |
publisher | Oxford Univ. Pr. |
record_format | marc |
series2 | The biology of habitats series |
spelling | Valk, Arnold van der Verfasser aut The biology of freshwater wetlands Arnold G. van der Valk 1. publ. Oxford [u.a.] Oxford Univ. Pr. 2006 XI, 173 S. Ill. txt rdacontent n rdamedia nc rdacarrier The biology of habitats series Limnologie Écologie d'eau douce Écologie des zones humides Wetland ecology Wetlands Ökologie (DE-588)4043207-5 gnd rswk-swf Ökosystem (DE-588)4043216-6 gnd rswk-swf Biogeochemie (DE-588)4125243-3 gnd rswk-swf Hydrobiologie (DE-588)4026300-9 gnd rswk-swf Binnengewässer (DE-588)4006758-0 gnd rswk-swf Feuchtgebiet (DE-588)4016960-1 gnd rswk-swf Limnologie (DE-588)4035769-7 gnd rswk-swf 1\p (DE-588)4151278-9 Einführung gnd-content Limnologie (DE-588)4035769-7 s DE-604 Feuchtgebiet (DE-588)4016960-1 s Hydrobiologie (DE-588)4026300-9 s Binnengewässer (DE-588)4006758-0 s Biogeochemie (DE-588)4125243-3 s Ökologie (DE-588)4043207-5 s 2\p DE-604 Ökosystem (DE-588)4043216-6 s 3\p DE-604 4\p DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=013075739&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 2\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 3\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 4\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
spellingShingle | Valk, Arnold van der The biology of freshwater wetlands Limnologie Écologie d'eau douce Écologie des zones humides Wetland ecology Wetlands Ökologie (DE-588)4043207-5 gnd Ökosystem (DE-588)4043216-6 gnd Biogeochemie (DE-588)4125243-3 gnd Hydrobiologie (DE-588)4026300-9 gnd Binnengewässer (DE-588)4006758-0 gnd Feuchtgebiet (DE-588)4016960-1 gnd Limnologie (DE-588)4035769-7 gnd |
subject_GND | (DE-588)4043207-5 (DE-588)4043216-6 (DE-588)4125243-3 (DE-588)4026300-9 (DE-588)4006758-0 (DE-588)4016960-1 (DE-588)4035769-7 (DE-588)4151278-9 |
title | The biology of freshwater wetlands |
title_auth | The biology of freshwater wetlands |
title_exact_search | The biology of freshwater wetlands |
title_full | The biology of freshwater wetlands Arnold G. van der Valk |
title_fullStr | The biology of freshwater wetlands Arnold G. van der Valk |
title_full_unstemmed | The biology of freshwater wetlands Arnold G. van der Valk |
title_short | The biology of freshwater wetlands |
title_sort | the biology of freshwater wetlands |
topic | Limnologie Écologie d'eau douce Écologie des zones humides Wetland ecology Wetlands Ökologie (DE-588)4043207-5 gnd Ökosystem (DE-588)4043216-6 gnd Biogeochemie (DE-588)4125243-3 gnd Hydrobiologie (DE-588)4026300-9 gnd Binnengewässer (DE-588)4006758-0 gnd Feuchtgebiet (DE-588)4016960-1 gnd Limnologie (DE-588)4035769-7 gnd |
topic_facet | Limnologie Écologie d'eau douce Écologie des zones humides Wetland ecology Wetlands Ökologie Ökosystem Biogeochemie Hydrobiologie Binnengewässer Feuchtgebiet Einführung |
url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=013075739&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
work_keys_str_mv | AT valkarnoldvander thebiologyoffreshwaterwetlands |