Sensitivity of the woodland herb Anemone hepatica to changing environmental conditions
Författare
Summary, in English
The decline of deciduous woodland populations of Anemone hepatica L. in southern Sweden is documented and possible causes are discussed. The study was based on (1) re-investigations of 6.25 km(2) grid-squares first studied in 19381970, (2) distribution of A. hepatica in woodland sites with well-known soil chemical properties and (3) a detailed study over 12 consecutive years into the relationships between biological characteristics of the species (number of individuals, vegetative development, flowering frequency) and environmental variables (temperature, precipitation), soil chemistry and time. There was a close relationship between soil acidity (pH, solubility of Al3+) and both distribution and biological characteristics. The biological variables declined significantly overtime but were not related to climatic variability. Increasing soil acidity and Al3+ solubility are concluded to be the main factors responsible for the decline of A. hepatica in S. Swedish deciduous woodlands.
Avdelning/ar
Publiceringsår
2002
Språk
Engelska
Sidor
207-216
Publikation/Tidskrift/Serie
Journal of Vegetation Science
Volym
13
Issue
2
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
International Association of Vegetation Science
Ämne
- Ecology
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1654-1103