Waite, Stephen and Burnside, Niall (2001) The radiate and non-radiate capitulum morph of senecio vulgaris L. within Sussex: the use of GIS in establishing origins In: Millington, A., Walsh, S. and Osbourne, P., eds. GIS and remote sensing applications in biogeography and ecology. Kluwer, Dordrecht, Netherlands, pp. 179-192. ISBN 0792374541Full text not available from this repository.
The geographical distribution of the radiate morph of Groundsel (Senecio vulgaris), Senecio vulgaris var. hibernicus was examined in the county of Sussex in southeast England using records from 1980 and 2000. In addition the geographical distribution of Oxford Ragwort (Senecio squalidus) was also investigated for the same area. The spatial distribution of S. squalidus was strongly correlated with the past and present railway network, as is that of . vulgaris var. hibernicus. The number of 2 × 2 km squares containing the radiate morph of S. vulgaris have declined since 1980, though those with S. Squalidus have remained more or less the same. The spatial evidence presented supports the hypothesis that the radiate morph of S. vulgaris occurs because of hydridisation and introgression betweeb the native non-radiate form of S. vulgaris and S. squalidus.
|Item Type:||Chapter in book|
|Subjects:||C000 Biological and Biomedical Sciences > C200 Plant Science
C000 Biological and Biomedical Sciences > C100 Biology
|Faculties:||Faculty of Science and Engineering > School of Environment and Technology > Ecology, Landscape and Pollution Management
Faculty of Science and Engineering > School of Environment and Technology
|Depositing User:||editor environment|
|Date Deposited:||25 Aug 2006|
|Last Modified:||09 May 2012 11:03|
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