In:
Revue d'Écologie (La Terre et La Vie), PERSEE Program, Vol. 48, No. 1 ( 1993), p. 3-20
Abstract:
The present status of invasive vascular plants in the subantarctic Crozet Archipelagos has been assessed during a 14 months field study carried out from December 1988 to January 1990. Four categories of invasive species were recognized, following the classification system of Walton and Smith (1973). The whole of the Ile de la Possession was divided up into 666 quadrats of 500 x 500 m, all of them (except in a few unaccessible cliffs) being investigated by the author to assess the presence of allien plants. Short visits were also paid to Ile de l’Est and Ile aux Cochons. Among the ca 100 allochtonous plants recorded, only 12 can presently be considered as naturalized. Among them Caluna vulgaris is reported for the first time from Ile de la Possession. The number of invasive vascular plants has greatly increased since the establishment of a permanent base on Ile de la Possession (1963), mostly through uncontroled import of seeds and compost for vegetable cultivation in glasshouses, and of grain for chicken feed. Such practices should be discontinued.
Type of Medium:
Online Resource
ISSN:
0249-7395
DOI:
10.3406/revec.1993.2076
Language:
French
Publisher:
PERSEE Program
Publication Date:
1993
detail.hit.zdb_id:
2922565-6
SSG:
12
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