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Walther, Gian-Reto:
Weakening of climatic constraints with global warming and its consequences for evergreen broad-leaved species.
In: Folia Geobotanica.
Bd. 37
(2002)
Heft 1
.
- S. 129-139.
ISSN 1874-9348
DOI: https://doi.org/10.1007/BF02803195
Abstract
Meteorological stations located in the lower areas of southern Switzerland have recorded a period with distinct milder winter conditions since 1970 as compared with the first half of the 20th century. The twofold set of climatic parameters, the absolute values and frequency of minimum temperatures as well as the length of the growing season have shifted towards warmer conditions in the last thirty years. In this paper, consequences of the lengthened growing season to 11 months are discussed. The detected climatic change supposedly favours species with evergreen broad-leaved growth form. With the analysis of 170 resurveyed releves the hypothesis of whether the group of evergreen broad-leaved species have succeeded in profiting from this weakening of climatic constraints was verified. Conspicuous changes have been observed not only in terms of the abundance and frequency of indigenous evergreen broad-leaved species, but also with a number of exotic species sharing equal characteristics and having succeeded in colonizing forest areas and establishing stands in the shrub layer. It is suggested that in areas with a minimum temperature above -10 degreesC and sufficient water supply throughout the year, evergreen broad-leaved species become increasingly competitive as soon as the growing season (days without frost) lengthens to about 300-320 days.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER41279 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzenökologie Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 30 Sep 2015 05:55 |
| Letzte Änderung: | 30 Sep 2015 05:55 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/19874 |