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The effects of pH and disturbance on the bryophyte flora in calcareous sandy grasslands

Hydbom, Sofia LU ; Ödman, Anja LU ; Olsson, Pål Axel LU and Cronberg, Nils LU (2012) In Nordic Journal of Botany 30(4). p.446-452
Abstract
The unique flora and fauna of calcareous sandy grasslands is threatened by acidification, eutrofication and changed land use. Restoration experiments in such grasslands in southern Sweden, including deep and shallow soil perturbation, allowed us to examine the effects of pH and disturbance on the bryophyte flora. We also studied natural pH and disturbance gradients in order to compare the natural pH and disturbance variation with the responses of experimental manipulation. We found that increased pH due to soil perturbation resulted in increased species richness. However, in naturally disturbed areas, pH seemed to have a lower effect, and instead, the location of the site and possibly the site history had a larger influence on species... (More)
The unique flora and fauna of calcareous sandy grasslands is threatened by acidification, eutrofication and changed land use. Restoration experiments in such grasslands in southern Sweden, including deep and shallow soil perturbation, allowed us to examine the effects of pH and disturbance on the bryophyte flora. We also studied natural pH and disturbance gradients in order to compare the natural pH and disturbance variation with the responses of experimental manipulation. We found that increased pH due to soil perturbation resulted in increased species richness. However, in naturally disturbed areas, pH seemed to have a lower effect, and instead, the location of the site and possibly the site history had a larger influence on species richness. We also found that some of the species that were common at naturally high pH (mainly acrocarps) were favoured by experimental pH manipulation. Our results pointed out Syntrichia ruraliformis as a sensitive pH indicator, being almost exclusively restricted to pH values above 7. The species can also serve as an indicator of sand steppe vegetation. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nordic Journal of Botany
volume
30
issue
4
pages
446 - 452
publisher
Board of the Nordic Journal of Botany
external identifiers
  • wos:000307932700011
  • scopus:84865332329
ISSN
0107-055X
DOI
10.1111/j.1756-1051.2012.01463.x
project
BECC
language
English
LU publication?
yes
id
5335dfd1-851a-4cf7-9966-731e6d4c63d2 (old id 3147427)
date added to LUP
2012-11-21 15:13:59
date last changed
2017-01-01 03:19:28
@article{5335dfd1-851a-4cf7-9966-731e6d4c63d2,
  abstract     = {The unique flora and fauna of calcareous sandy grasslands is threatened by acidification, eutrofication and changed land use. Restoration experiments in such grasslands in southern Sweden, including deep and shallow soil perturbation, allowed us to examine the effects of pH and disturbance on the bryophyte flora. We also studied natural pH and disturbance gradients in order to compare the natural pH and disturbance variation with the responses of experimental manipulation. We found that increased pH due to soil perturbation resulted in increased species richness. However, in naturally disturbed areas, pH seemed to have a lower effect, and instead, the location of the site and possibly the site history had a larger influence on species richness. We also found that some of the species that were common at naturally high pH (mainly acrocarps) were favoured by experimental pH manipulation. Our results pointed out Syntrichia ruraliformis as a sensitive pH indicator, being almost exclusively restricted to pH values above 7. The species can also serve as an indicator of sand steppe vegetation.},
  author       = {Hydbom, Sofia and Ödman, Anja and Olsson, Pål Axel and Cronberg, Nils},
  issn         = {0107-055X},
  language     = {eng},
  number       = {4},
  pages        = {446--452},
  publisher    = {Board of the Nordic Journal of Botany},
  series       = {Nordic Journal of Botany},
  title        = {The effects of pH and disturbance on the bryophyte flora in calcareous sandy grasslands},
  url          = {http://dx.doi.org/10.1111/j.1756-1051.2012.01463.x},
  volume       = {30},
  year         = {2012},
}