Le Brocque, Andrew F. and Buckney, Rodney T. (1997) Multivariate relationships between floristic composition and stand structure in vegetation of Ku-ring-gai Chase National Park, New South Wales. Australian Journal of Botany, 45 (6). pp. 1033-1044. ISSN 0067-1924
Abstract
[Abstract]:
The relationships between stand structure and floristic composition were examined from data collected
from 100 quadrats on two soil types: Hawkesbury sandstone and Narrabeen group soils, occurring
within Ku-ring-gai Chase National Park, New South Wales. Floristic composition was determined using
the frequency of species occurring within nine concentric sub-quadrats of total area 500 m2. Stand
structure was determined by a multivariate classification scheme utilising the foliage projective cover of
eight strata within each quadrat. The patterns in floristic composition and stand structure were examined
through multivariate analyses. Procrustes analysis of non-metric multidimensional scaling ordinations of
both the stand structure and composition data showed floristic composition gradients to be well
recovered by the structure data. Similar gradients were evident in both vegetation attributes, between
and within the two soil types, with the rank order of community types across the ordinations being the
same. However, some important differences were evident between the ordinations of floristic
composition and stand structure between and within soil types. A number of floristically dissimilar
communities exhibited very similar multivariate structural characteristics. In particular, two floristically
distinct communities on different soil types were indistinguishable in terms of their structural
characteristics. The multivariate analyses suggest a possible convergence of some compositionally
distinct communities towards a common structural formation.
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