Hydrological and hydrochemical conditions characterising Carex chordorrhiza L. fil. (String Sedge) habitat in a Scottish riverine floodplain wetland

Michael P. Kennedy, Kevin J. Murphy

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The hydrological and hydrochemical conditions which characterise one of the two known UK habitats supporting Carex chordorrhiza (a glacial relict, occurring in riverine wetlands) were quantified. The environmental data were related to structural measurements of the species, and the plant assemblages in which it occurred. The communities which contain C. chordorrhiza in Scotland are closely related to two wetland vegetation types quite widely distributed in Europe, but the fact that C. chordorrhiza shows a severely limited, and scattered, European distribution within this general community type suggests that it has highly specific habitat requirements. These include moderately reducing hydrosoil conditions and near-constant shallow inundation, both producing intermediate levels of stress. The results suggest that management aimed at maintaining such conditions, and preventing invasion of more competitive species into habitats which support C. chordorrhiza, is a pre-requisite for conservation of this species in boreal regions of Europe.

Original languageEnglish
Pages (from-to)243-255
Number of pages13
JournalAquatic Botany
Volume77
Issue number4
DOIs
Publication statusPublished - Dec 2003
Externally publishedYes

Keywords

  • Glacial relict
  • Groundwater variables
  • Insh Marshes
  • Vegetation variables

ASJC Scopus subject areas

  • Aquatic Science
  • Plant Science

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