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Reproductive strategies and liming responses in forest field-layer flora

Kruuse af Verchou, Annika LU (1999)
Abstract (Swedish)
Popular Abstract in Swedish

Skogskalkning ledde till ökat artantal, ökat antal individer av enskilda arter och ökad omsättning av arter i fältskiktet i bokskog. För gulplister var individstorleken och sexuell respektive vegetativ förökning opåverkad av kalkningen. Sexuell och vegetativ förökning ökade med ökad individstorlek hos gulplister, både i en population av omanipulerade individer som växte på kalkade och okalkade ytor, och i en population där individstorleken hade ökat efter att blomknoppar hade klippts av.



Kalkning och tillförsel av vedaska hade positiva snarare än negativa effekter på fältskiktsvegetationen. Kalkningseffekterna på floran snabbades på när skogsgallring förekom i kalkade områden.... (More)
Popular Abstract in Swedish

Skogskalkning ledde till ökat artantal, ökat antal individer av enskilda arter och ökad omsättning av arter i fältskiktet i bokskog. För gulplister var individstorleken och sexuell respektive vegetativ förökning opåverkad av kalkningen. Sexuell och vegetativ förökning ökade med ökad individstorlek hos gulplister, både i en population av omanipulerade individer som växte på kalkade och okalkade ytor, och i en population där individstorleken hade ökat efter att blomknoppar hade klippts av.



Kalkning och tillförsel av vedaska hade positiva snarare än negativa effekter på fältskiktsvegetationen. Kalkningseffekterna på floran snabbades på när skogsgallring förekom i kalkade områden. Kalkning återskapar inte skogsekosystemet till ett tillstånd som rådde före försurning, och kalkning skall inte tas som ett argument mot minskade utsläpp av försurande ämnen. (Less)
Abstract
Liming increased species richness, in accordance with the species pool hypothesis, and number of plants of individual species in beech forest field-layer vegetation, by increasing establishment by seedlings and vegetative offspring. Turnover rates also increased, suggesting the explanatory value of the carousel model. Plant size, absolute measures of reproduction, and poportional measures of sexual (SRE) and vegetative (VRE) reproduction were unaffected by liming in the clonal, stoloniferous herb Lamiastrum galeobdolon. Absolute measures of sexual and vegetative reproduction were positively related to L. galeobdolon size, both in a population of unmanipulated plants growing on limed and unlimed plots, and in plants in which plant size was... (More)
Liming increased species richness, in accordance with the species pool hypothesis, and number of plants of individual species in beech forest field-layer vegetation, by increasing establishment by seedlings and vegetative offspring. Turnover rates also increased, suggesting the explanatory value of the carousel model. Plant size, absolute measures of reproduction, and poportional measures of sexual (SRE) and vegetative (VRE) reproduction were unaffected by liming in the clonal, stoloniferous herb Lamiastrum galeobdolon. Absolute measures of sexual and vegetative reproduction were positively related to L. galeobdolon size, both in a population of unmanipulated plants growing on limed and unlimed plots, and in plants in which plant size was increased after flower buds were cut off. Neither SRE nor VRE showed any changes after flowering was prevented. Both measures were negatively related to plant size in the unmanipulated plants.



Forest liming and wood-ash application seem to have positive rather than negative effects on the field-layer vegetation. When forest thinning occurs in limed areas the effects of liming on the field-layer vegetation are accelerated and possibly also magnified. Liming is not likely to restore forest ecosystems to a pre-acidified state, however, and liming could not be taken as an argument against decreasing acidifying emissions. (Less)
Please use this url to cite or link to this publication:
author
opponent
  • Prof van Groenedael, Jan, the Netherlands
organization
publishing date
type
Thesis
publication status
published
subject
keywords
species turnover, species richness, sexual reproduction, podzol, pH, Lamiastrum galeobdolon, forest liming, demography, Cambisol, clonal plants, SRE, vegetative reproduction, VRE, Plant ecology, Växtekologi
pages
90 pages
publisher
Department of Ecology, Lund University
defense location
Blå Hallen, Ecology Building, Lund
defense date
1999-10-15 10:15
external identifiers
  • Other:ISRN: SE-LUNBDS/NBBE-99/1053+90pp
ISBN
91-7105-121-X
language
English
LU publication?
yes
id
fbc5fcce-66f2-47fe-85d1-84b0f9566086 (old id 39898)
date added to LUP
2007-07-31 11:57:19
date last changed
2016-09-19 08:45:14
@misc{fbc5fcce-66f2-47fe-85d1-84b0f9566086,
  abstract     = {Liming increased species richness, in accordance with the species pool hypothesis, and number of plants of individual species in beech forest field-layer vegetation, by increasing establishment by seedlings and vegetative offspring. Turnover rates also increased, suggesting the explanatory value of the carousel model. Plant size, absolute measures of reproduction, and poportional measures of sexual (SRE) and vegetative (VRE) reproduction were unaffected by liming in the clonal, stoloniferous herb Lamiastrum galeobdolon. Absolute measures of sexual and vegetative reproduction were positively related to L. galeobdolon size, both in a population of unmanipulated plants growing on limed and unlimed plots, and in plants in which plant size was increased after flower buds were cut off. Neither SRE nor VRE showed any changes after flowering was prevented. Both measures were negatively related to plant size in the unmanipulated plants.<br/><br>
<br/><br>
Forest liming and wood-ash application seem to have positive rather than negative effects on the field-layer vegetation. When forest thinning occurs in limed areas the effects of liming on the field-layer vegetation are accelerated and possibly also magnified. Liming is not likely to restore forest ecosystems to a pre-acidified state, however, and liming could not be taken as an argument against decreasing acidifying emissions.},
  author       = {Kruuse af Verchou, Annika},
  isbn         = {91-7105-121-X},
  keyword      = {species turnover,species richness,sexual reproduction,podzol,pH,Lamiastrum galeobdolon,forest liming,demography,Cambisol,clonal plants,SRE,vegetative reproduction,VRE,Plant ecology,Växtekologi},
  language     = {eng},
  pages        = {90},
  publisher    = {ARRAY(0x7bc6a80)},
  title        = {Reproductive strategies and liming responses in forest field-layer flora},
  year         = {1999},
}