RT info:eu-repo/semantics/article
T1 Altitudinal pattern of vegetation variation on Tenerife
A1 Nicolás, Juan Pedro de
A1 Fernández-Palacios, José María
K1 Canary Islands
K1 Cloud sea
K1 Coenocline
K1 Environmental determinant
K1 Vegetation belt
AB The variation in structure and floristic composition of the vegetation of Tenerife is related to different environmental factors. 200 sample plots, stratified according to altitude, exposure to wind, kind and age of parent rock, inclination and degree of disturbance were analysed throughout the island. The resulting data were analysed using univariate statistics (altitudinal distribution profiles of the more frequent species) and multivariate methods (Correspondence, Cluster and Pattern Analysis).Altitude, exposure to wind and, to a lesser extent, disturbance were found to be the major determinants of vegetational variation, whereas parent rock and inclination were less important. Ordination results show a continuum in structural and floristic variation of the vegetation with species distributions varying continually along the altitudinal gradient. Nevertheless, altitudinally bound plant community types were recognized with Cluster Analysis. Vegetational discontinuities, which were also detected by pattern analysis, are more evident on the windward slope of the island; they have been attributed to the existence of a major underlying environmental discontinuity the ‘cloud sea’‐which is associated with a climatic inversion. On the leeward slope, beyond the influence of the cloud sea, discontinuities are less evident and vegetational variation seems to be closer to a coenocline, i.e. a vegetational continuum.
PB IAVS
SN 1100-9233
YR 1995
FD 1995
LK http://riull.ull.es/xmlui/handle/915/17779
UL http://riull.ull.es/xmlui/handle/915/17779
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 19-abr-2024