|
Titre :
|
Vegetation-environment relationships in Lefka Ori (Crete, Greece): Ordination results from montane-mediterranean and oro-mediterranean communities (2001)
|
|
Auteurs :
|
I. N. Vogiatzakis, Auteur ;
G. H. Griffiths, Auteur
|
|
Type de document :
|
Article
|
|
Dans :
|
Ecologia Mediterranea (27(1) 2001)
|
|
Article en page(s) :
|
1-13
|
|
Résumé :
|
The extensive Lefka Ori massif on the island of Crete supports more than 100 endemic plant species and is of considerable ecological importance internationally. However, little is known or understood about plant community distribution in the massif. Montane-mediterranean and oro-mediterranean vegetation was sampled at two study sites and the relationships between a range of environmental variables and plant community distribution were investigated. Classification of the floristic data was performed with Two Way Indicator Species Analysis (TWINSPAN) resulting in five distinct vegetation communities. Canonical Correspondence Analysis (CCA) suggested that the two main compositional gradients were associated with altitude, pH, organic matter and slope. Rocky slopes, screes and karstic depressions were identified from field observations as the main habitats. Separate ordination analysis was performed only for the first two groups since the third supported only one community. Altitude and bare rock percent cover control vegetation patterns on rocky slopes, whereas on screes ground cover and pH are the most important factors.
|
