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1 Polish Journal of Ecology

1 2011

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Neophytic Coripsermum pallasii (Stev.) (Chenopodiaceae) invading migrating dunes of the southern coast of the Baltic Sea

Dolnik C., Peyrat J., Volodina A., Sokolov A.

Polish Journal of Ecology

2011

Vol. 59, nr 1

95-103

Actively migrating dunes along the southern coast of the Baltic Sea have a very specific vegetation of annual pioneer plants, some of which are endemic to that area. This vegetation type was studied on the migrating dunes of the Łeba Bar (Poland) and the Curonian Spit (Russia and Lithuania) and is for the first time represented by 18 vegetation releves according to the Braun-Blanquet approach. Typical plants on bare soil of active migrating dunes and sand fields in Baltic dunes are the endemics Corispermum intermedium (Chenopodiaceae), Cakile maritima subsp. baltica (Brassicaceae), and Linaria loeselii (Scrophulariaceae). A comparison of our field investigations with literature records revealed a gradual replacement of C. intermedium by the neophytic Siberian bugseed Corispermum pallasii (syn. C. leptopterum). C. intermedium suffered from severe habitat loss by dune afforestation, while the ruderal weed C. pallasii expanded its distribution range in the 20th century to various open gravel and sand fields in Europe, including dunes of the Baltic coast. New concepts of coastal conservation management, including aspects of coastal dynamics and nature conservation of endemic species, should be applied to conserve the remaining populations of C. intermedium.