European phylogeography of the coastal plants Cakile maritima Scop. (Brassicaceae) and Eryngium maritimum L. (Apiaceae) [Elektronische Ressource] / Erik Daniel Westberg

European phylogeography of the coastalplants Cakile maritima Scop. (Brassicaceae) and Eryngium maritimum L. (Apiaceae)Dissertation zur Erlangung des GradesDoktor der NaturwissenschaftenAm Fachbereich Biologieder Johannes Gutenberg-Universitätin MainzErik Daniel Westberggeboren in Uddevalla, SchwedenMainz, Deutschland, Januar 2005 Tag der mündlichen Prüfung: 15 April 2005 CONTENTS SUMMARY 1ZUSAMMENFASSUNG3INTRODUCTION5MATERIAL AND METHODSRESULTS0DISCUSSION 52LITERATURE72APPENDIX I IAII IXAPPENDIX III XIIAIV XVIII iSummary SUMMARY Linear dispersal systems, such as coastal habitats, are well suited for phylogeographic studies because of their low spatial complexity compared to three dimensional habitats. Widely distributed coastal plant species additionally show azonal and often essentially continuous distributions. These properties, firstly, make it easier to reconstruct historical distributions of coastal plants and, secondly, make it more likely that present distributions contain both Quaternary refugia and recently colonized areas. Taken together this makes it easier to formulate phylogeographic hypotheses. This work investigated the phylogeography of Cakile maritima and Eryngium maritimum, two species growing in sandy habitats along the north Atlantic Ocean and the Mediterranean Sea coasts on two different spatial scales using AFLP data.