Journal
BIODIVERSITY AND CONSERVATION
Volume 13, Issue 12, Pages 2275-2293Publisher
SPRINGER
DOI: 10.1023/B:BIOC.0000047902.27442.92
Keywords
alien plants; Baccharis halimifolia; coastal vegetation; habitats conservation; invasive plants; northern Spain; phytosociology
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Alien plants in coastal habitats and their influence on natural vegetation are studied. After 5 years working on this subject in the Basque Country and surrounding areas, a number of results from the coastal ecosystems are presented. These ecosystems are one of the most threatened and affected by the invasion of alien plants, especially shore dunes, saltmarshes and cliffs. These kinds of habitats, especially the dunes, experience significant pressure from human activities which favours the expansion of some of these species: Arctotheca calendula, Sporobolus indicus and Oenothera spp. The presence and abundance of these invasive plants and others such as Baccharis halimilfolia, Cortaderia selloana, Spartina patens and Carpobrotus edulis in the plant communities in an area between the French border and the western part of the region of Cantabria have been studied. The degree of invasion of each plant in each syntaxonomic unit has been analysed.
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