Fróðskaparrit - 01.01.2006, Blaðsíða 131

ÚTBREIÐSLAN AV LÍVSHÆTTUM RAUNKIÆRS
NIÐAN EFTIR FJALLASÍÐUM í FØROYUM
129
alpine zone is seen to be due to low total veg-
etation cover, as therophytes are commonly
found as the only life-form in unstable soils
such as screes, fellfields and patterned fields.
We, therefore, suggest that the effect of
environmental factors, such as soil distur-
bance, override the effect of climatic pa-
rameters for therophytes. Thus, disturbance
°f the soils due to reduced vegetation cover
ls most likely the best explanation for the
high abundance of therophytes.
Acknowledgements
would like to acknowledge Magnus
Gaard and Erla Olsen for assistance with the
iieldwork. This paper is a part of the proj-
ect: Vegetation zones in relation to climate
1,1 some Faroese mountains, which is partly
funded by the Danish Research Council (the
North Atlantic Programme) and the Faroese
^luseum of Natural History.
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