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Title: Wallum and related vegetation on the NSW North Coast: Description and phytosociological analysis
Contributor(s): Griffith, Stephen J  (author); Bale, Colin (author); Adam, P (author); Wilson, R (author)
Publication Date: 2003
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Abstract: Wallum is the regionally distinct vegetation on coastal dunefields, beach ridge plains and sandy backbarrier flats in subtropical northern NSW and southern Queensland (22°S to 33°s). This study examined floristic patterns in the wallum and allied vegetation along 400km of coastline in north-eastern NSW. Floristic and environmental data were compiled for 494 quadrats allocated on the basis of air photo pattern and latitude. A phytosociological classification displayed strong congruence with an initial classification based upon photo pattern, especially for single stratum vegetation, thereby suggesting that API (air photo interpretation) is a valuable technique for the recognition of floristic assemblages. The utility of API for depicting the spatial distribution of tallest stratum species in multi-stratum vegetation was also confirmed. Nonetheless, photo signatures of the tallest stratum are less satisfactory as surrogates for identifying noda for the full complement of species in multi-stratum vegetation. Ordination supported the numerical classification, and reinforced the value of API for capturing meaningful biological and environmental data. Plant-environment relationships were examined for a range of variables. The consistent trend to emerge was a comparatively strong correlation between floristic composition and topographic position, and in some instances also between floristic composition and geology. Mean species richness at the 25m² scale was lower in wetter habitats, although differences were not consistently significant.
Publication Type: Journal Article
Source of Publication: Cunninghamia, 8(2), p. 202-252
Publisher: National Herbarium of New South Wales, Royal Botanic Gardens
Place of Publication: Sydney, N.S.W., Australia
ISSN: 0727-9620
Field of Research (FOR): 050202 Conservation and Biodiversity
060208 Terrestrial Ecology
Socio-Economic Outcome Codes: 960802 Coastal and Estuarine Flora, Fauna and Biodiversity
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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