Nom du corpus

Corpus Systématique Végétale

Titre du document

Effects of selective clipping and mowing time on species diversity in chalk grassland

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Chalk grasslands
  • Brachypodium pinnatum
  • Dominance
  • Species removal
  • Species richness
  • Diversity
  • Mowing time
  • Management
Nom du fichier dans la ressource
Syst_veg6_v2_005820
Auteur(s)
  • Roland Bobbink 1
  • Heinjo J. During 1
  • Jan Schreurs 1
  • Jo Willems 1
  • Rudi Zielman 1
Affiliation(s)
  • 1) Department of Plant Ecology, University of Utrecht, Lange Nieuwstraat 106, 3512 PN, Utrecht, The Netherlands
Résumé

Phytomass distribution and species diversity were followed in a chalk grassland with different selective clipping treatments during 4 years. Removal of the dominantBrachypodium resulted in a sharp increase in forb phytomass and in species number. The dominance-diversity curve changed in shape from geometric to log-normal. Obviously,Brachypodium restricted the growth of most other species. Removal of all species except the dominant showed, in contrast to the niche pre-emption theory, a marked increase in phytomass and reproductive effort ofBrachypodium. It seems that other mechanisms can also lead to a geometric distribution. Removal in a type of vegetation without obvious dominants and with a log-normal species distribution revealed that interspecific competition is not an important factor in this vegetation. This suggested a low intensity of species interaction and a large influence of restricting density-independent factors. Finally, to reduce the dominance ofBrachypodium we implemented a 4-year mowing experiment. Mowing earlier in the season resulted in a reduced exclusion of species byBrachypodium. This alternative mowing time may be sufficient to restore species diversity in chalk grassland. Experiments are under way to further substantiate this conclusion.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Earth and Planetary Sciences ; 3 - Palaeontology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
Identifiant ISTEX
48CB5CC6DE7352E87A1837554F7E01D4BF96A3F8
Revue

Folia Geobotanica et Phytotaxonomica

Année de publication
1987
Présence de XML structuré
Non
Score qualité du texte
9.172
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0B6886CN-3
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