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Spatial variation in vegetation and abiotic factors related to the occurrence of a ring-forming sedge

Wikberg, Sofie LU and Mucina, L (2002) In Journal of Vegetation Science 13(5). p.677-684
Abstract
The clonal sedge Carex humilis forms rings of densely aggregated ramets in a dry grassland community in Central Europe. We describe the small-scale spatial variation, both in abiotic factors and vegetation, in relation to these rings. Compared to the surrounding vegetation the cover of plants, other than C. humilis, was significantly lower both in the central area of rings and within the rings themselves. The vegetation structure was also different. The soil was more fertile in the central area and within the ring than in the surroundings, measured both directly and by the abiotic response values of the vascular plants. We conclude that neither resource depletion nor competition from other plants were likely to be responsible for the low... (More)
The clonal sedge Carex humilis forms rings of densely aggregated ramets in a dry grassland community in Central Europe. We describe the small-scale spatial variation, both in abiotic factors and vegetation, in relation to these rings. Compared to the surrounding vegetation the cover of plants, other than C. humilis, was significantly lower both in the central area of rings and within the rings themselves. The vegetation structure was also different. The soil was more fertile in the central area and within the ring than in the surroundings, measured both directly and by the abiotic response values of the vascular plants. We conclude that neither resource depletion nor competition from other plants were likely to be responsible for the low ramet density in the central area of C. humilis rings. Instead, we suggest that the ring form is caused either by the deposition of growth inhibiting substances or by intrinsic morphological rules. (Less)
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author
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in
Journal of Vegetation Science
volume
13
issue
5
pages
677 - 684
publisher
International Association of Vegetation Science
external identifiers
  • wos:000180300000008
  • scopus:0036819863
ISSN
1654-1103
language
English
LU publication?
yes
id
4004f537-cfc9-4643-aa70-45357d3647fc (old id 152996)
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http://www.opuluspress.se/index.php?page=shop/article_abstract&product_id=8&Itemid=56&option=com_phpshop&article=17507&nr=-1
date added to LUP
2007-07-03 10:00:58
date last changed
2017-01-08 03:46:01
@article{4004f537-cfc9-4643-aa70-45357d3647fc,
  abstract     = {The clonal sedge Carex humilis forms rings of densely aggregated ramets in a dry grassland community in Central Europe. We describe the small-scale spatial variation, both in abiotic factors and vegetation, in relation to these rings. Compared to the surrounding vegetation the cover of plants, other than C. humilis, was significantly lower both in the central area of rings and within the rings themselves. The vegetation structure was also different. The soil was more fertile in the central area and within the ring than in the surroundings, measured both directly and by the abiotic response values of the vascular plants. We conclude that neither resource depletion nor competition from other plants were likely to be responsible for the low ramet density in the central area of C. humilis rings. Instead, we suggest that the ring form is caused either by the deposition of growth inhibiting substances or by intrinsic morphological rules.},
  author       = {Wikberg, Sofie and Mucina, L},
  issn         = {1654-1103},
  language     = {eng},
  number       = {5},
  pages        = {677--684},
  publisher    = {International Association of Vegetation Science},
  series       = {Journal of Vegetation Science},
  title        = {Spatial variation in vegetation and abiotic factors related to the occurrence of a ring-forming sedge},
  volume       = {13},
  year         = {2002},
}