Experimental growth responses to groundwater level variation and competition in five British wetland plant species

Michael P. Kennedy, Judith M. Milne, Kevin J. Murphy

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

New experimental evidence from controlled glasshouse studies was used to test previous empirical field observations about the interactions of hydrological dynamics with individual plant species in wetland habitats. Manipulation of water levels, and the presence/absence of competitor species, produced significant morphological responses (e.g. resource allocation to above- and below-ground structures; plant height; leaf size; tiller production) in mature individuals of five freshwater wetland plant species characteristic of British northern poor-fen habitats. These responses provide evidence for potential advantages in survival and ability to spread vegetatively. The data also provide new insight into factors controlling the distribution of wetland plants along gradients of water table level, in the presence or absence of competing species. Although there were variations between species, the effects of competition were, in general, less than those attributable to hydrological regime.

Original languageEnglish
Pages (from-to)383-396
Number of pages14
JournalWetlands Ecology and Management
Volume11
Issue number6
DOIs
Publication statusPublished - Dec 2003
Externally publishedYes

Keywords

  • Agrostis stolonifera L.
  • Carex rostrata Stokes
  • Competition
  • Deschampsia cespitosa (L.) Beauv.
  • Ecohydrology
  • Filipendula ulmaria (L.) Maxim
  • Glyceria maxima (Hartman) Holmberg
  • Groundwater
  • Phalaris arundinacea L.
  • Poor-fen

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Management, Monitoring, Policy and Law

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