若狭湾周辺の照葉樹林における種組成的研究 : I.群落分類と序列づけ

概要

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Relations between variations of species composition and ecological factors were investigated at lucidophyllous forests on the Wakasa Bay coast and its adjacent islands in Japan. The community data were classified following the Zurich-Montpelier School, and species and plots were ordinated by principal component analysis (PCA). One community, and two associations, which were divisible into seven lower units, were recognized as follews : typical group (A-1), Carex matsumurae group (A-2), Quercus myrsinaefolia group (A-3) and Ilex pedunculosa group (A-4) of Polysticho-Perseetum thunbergii ; typical group (B-1), Rumohra simplicior var. major group (B-2) and Rhododendron reticulatum group (B-3) of Ardisio-Castanopsietum sieboldii ; Persea thunbergii-Castanopsis cuspidata var. sieboldii community (C). The phytosociological units (A-1), (A-2) and (B-1) were at one extremity of axis 1 extracted by PCA, whereas (A-3) and (B-3) were at the opposite. For axis 2,(A-4) and (B-3) were at one extremity, whereas (A-3) and (B-2) at the opposite. The phytosociological unit (C) was scattered around the origin. The first axis reflected the gradients from insular to inland habitat, while the second, that from disturbed to the non-distrubed habitat. The behaviour of the phytosociological units in the ordination diagram successfully explained relations between varlations of species composi tion and ecological factors.
日本生態学会の論文
1990-12-31