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Between Land and Sea — Saline and Brackish Grasslands of the Baltic Sea Coast Data Usability, Characterisation and Conservation

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Between Land and Sea — Saline and Brackish Grasslands of the Baltic Sea Coast Data Usability, Characterisation and Conservation Ricarda Pätsch Ricarda data usability, characterisaton and conservaton characterisaton usability, data grasslands of the Baltc Sea coast grasslands land and sea saline and brackish grasslands Baltic Sea conservation Between land and sea — saline and brackish land and sea — saline and brackish Between data usability between characterisation Ricarda Pätsch Between land and sea — saline and brackish grasslands of the Baltc Sea coast Ricarda Pätsch Between land and sea — saline and brackish grasslands of the Baltc Sea coast data usability, characterisaton and conservaton Hildesheim 2019 Impressum Die Deutsche Natonalbibliothek verzeichnet diese Publikaton in der Deutschen Natonalbibliografe; detaillierte bibliografsche Daten sind im Internet über htp://dnb.d-nb.de abrufar. Diese elektronische Publikaton ist mit der Creatve-Commons-Nutzungslizenz BY-NC-ND (Namensnennung – Nicht kommerziell – Keine Bearbeitung) versehen. Weitere Informatonen unter: htps://creatvecommons.org/licenses/by-nc-nd/4.0/legalcode Universitätsverlag Hildesheim Universitätsplatz 1 31141 Hildesheim htps://www.uni-hildesheim.de/bibliothek/forschen-publizieren/universitaetsverlag/ Erstausgabe Hildesheim 2019 Satz und Layout: Ricarda Pätsch Titelblatgestaltung: Jan Jäger Der Beitrag ist abrufar unter: htp://dx.doi.org/10.18442/058 Ziterempfehlung: Pätsch, Ricarda (2019). Between land and sea — saline and brackish grasslands of the Baltc Sea coast. Data usability, characterisaton and conservaton. Hildesheim: Universitätsverlag Hildesheim. DOI: htp://dx.doi.org/10.18442/058 (Open Access) Between land and sea — saline and brackish grasslands of the Baltic Sea coast data usability, characterisation and conservation Dissertation for the award of the degree ‘Doctor rerum naturalium’ (Dr. rer. nat.) of the University of Hildesheim Area of specialisation: Biology Submitted by: Ricarda Pätsch from Herne (DE) Date of oral defence: 19. August 2019 In my thesis I investigate the vegetation and phytodiversity of Baltic Sea saline and brackish grasslands, focussing on methodological, ecological and nature conservation aspects. My co-authors and I conduct analyses based on my own data and compiled historical and current data, which we propose to transform to make them applicable for further analyses (Pätsch et al. accepted a). We jointly describe the Baltic Sea coastal grasslands along the entire coastline in relation to their ecology, littoral placement, geographic patterns, phytogeography and assignment to North-west European salt grasslands. We further review their conservation aspects (Pätsch et al. accepted b). Based on analyses of characteristic species of low-growing coastal grasslands in relation to Elytrigia repens, we elaborate a proposal for assessing the quality of coastal grassland vegetation (Pätsch et al. 2019). Thesis committee and members of the examination board: Prof. Dr. Anke Meisert1 Prof Dr. Erwin Bergmeier2 Further members of the examination board: Dr. Stephanie Stiegel1 Prof. Dr. Horst Kierdorf1 Affiliations: 1Department of Biology and Chemistry, University of Hildesheim Universitätsplatz 1, 31141 Hildesheim: DE 2Department of Vegetation and Phytodiversity Analysis, University of Göttingen Untere Karspüle 2, 37073 Göttingen: DE The dissertation follows the ‘Neufassung der Promotionsordnung des Fachbereichs 4 (Mathematik, Naturwissenschaften, Wirtschaft und Informatik) der Universität Hildesheim für die Verleihung des Grades Doktorin bzw. Doktor der Naturwissenschaften (Dr. rer. nat.)‘ Wer denkt, ist in aller Kritik nicht wütend: Denken hat die Wut sublimiert. Weil der Denkende es sich nicht antun muß, will er es auch den anderen nicht antun. Das Glück, das im Auge des Denkenden aufgeht, ist das Glück der Menschheit. Die universale Unterdrückungstendenz geht gegen den Gedanken als solchen. Glück ist er, noch wo er das Unglück bestimmt: indem er es ausspricht. Damit allein reicht Glück ins universale Unglück hinein. Wer es sich nicht verkümmern läßt, der hat nicht resigniert. Adorno T., Kulturkritik und Gesellschaft I/II: Kritische Modelle 3 Grasslands of the Baltic Sea coast – Content Content Summary ............................................................................................................................ i Zusammenfassung ............................................................................................................. iii Introduction ....................................................................................................................... 1 Phytosociology in Central and Northern Europe – Diverse approaches led to diverse data ........................................................................ 1 Brief overview of the historic development of phytosociology ...................................... 1 Phytosociological vegetation analyses – Limits in the application of common vegetation plot data based on diverse species quantity scales ...................................... 2 The present-day availability of vegetation-plot data ..................................................... 3 The present-day need and state of phytosociological research ...................................... 3 Saline and brackish grasslands of the Baltic Sea coast .................................................. 4 A valuable part of the European cultural open landscape ............................................. 4 What do we know about their vegetation and ecology? ............................................... 5 Nature conservation – Aspects on saline and brackish grasslands of the Baltic Sea coast ................................ 7 Their value and their assessment on habitat level ........................................................ 7 A threatened habitat – are there ways to preserve its diversity? ................................ 8 The study area – The development of coastal formations and present-day characteristics of the Baltic Sea (coast) ......................................................................... 9 Data and methods .................................................................................................... 11 Objectives and thesis outline ..................................................................................... 13 Making them visible and usable – vegetation-plot observations from Fennoscandia based on historical species-quantity scales ....................................................................... 17 Technical information ................................................................................................... 17 Abstract ........................................................................................................................ 18 Introduction .................................................................................................................. 18 Methods ....................................................................................................................... 20 Results and discussion .................................................................................................. 22 Norrlin scale .............................................................................................................. 22 Hult-Sernander scale .................................................................................................. 23 Drude scale ............................................................................................................... 25 Additional remarks .................................................................................................... 27 Conclusion .................................................................................................................... 29 Between land and sea – a classification of saline and brackish grasslands of the Baltic Sea coast ......................... 31 Technical information ................................................................................................... 31 Abstract ........................................................................................................................ 32 Introduction ................................................................................................................. 32 Grasslands of the Baltic Sea coast – Content Study Area .................................................................................................................... 34 Methods ....................................................................................................................... 35 Data collection ......................................................................................................... 35 Classification ............................................................................................................ 36 Data interpretation ................................................................................................... 36 Results .......................................................................................................................... 37 Ordination ............................................................................................................... 39 Plant community classification and characterisation .................................................... 40 Main cluster 1 (Groups 1 and 2) ................................................................................. 50 Main cluster 2 (Groups 1-5) ....................................................................................... 51 Main cluster 3 (Groups 1-6) ......................................................................................
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