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Åkerfibbla och andra ogräs i en sydhalländsk kustbygd

Magazine article
Authors Håkan Pleijel
Published in Svensk Botanisk Tidskrift
Volume 112
Pages 176-185
ISSN 0039-646X
Publication year 2018
Published at Department of Biological and Environmental Sciences
Pages 176-185
Language sv
Subject categories Botany

Abstract

Hypochaeris glabra is a red-listed (VU) declining herb occurring mostly as a long-established agricultural weed in SW Sweden. This paper describes the decline of Hypochaeris glabra in a coastal, sandy area in the southern part of the county of Halland, as a consequence of shifted management and abandonment of sandy, low-productive cultivated fields. Low competitive ability, annual growth habit, a seed bank of short duration, and strong dependence on rather infertile, sandy soil, all contribute to the fast rate of decline of the species. Hypochaeris glabra seems to be waning from much of North and Central Europe. A decline was also observed for other weeds, such as Raphanus raphanistrum (VU), Setaria viridis (NT) and Apera spica-venti (NT), while the thermophilous weed Echinochloa crus-galli apparently increases.

Page Manager: Webmaster|Last update: 9/11/2012
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