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Stump Colonization by Armillaria luteobubalina and Other Wood Decay Fungi in an Age Series of Cut-Over Stumps in Karri (Eucalyptus diversicolor) Regrowth Forests in South-Western Australia

M. H. Pearce and N. Malajczuk
The New Phytologist
Vol. 115, No. 1 (May, 1990), pp. 129-138
Published by: Wiley on behalf of the New Phytologist Trust
Stable URL: http://www.jstor.org/stable/2557060
Page Count: 10
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Stump Colonization by Armillaria luteobubalina and Other Wood Decay Fungi in an Age Series of Cut-Over Stumps in Karri (Eucalyptus diversicolor) Regrowth Forests in South-Western Australia
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Abstract

As part of a study of interactions between Armillaria luteobubalina Watling and Kile and other wood decay fungi, we conducted a three-year floristic survey of fungal colonization of 150 eucalypt stumps (left after clearfelling of mature forest) in a series of karri (Eucalyptus diversicolor F. Muell.) regrowth stands of different ages. Certain fungi showed preferences for different eucalypt species or parts of stumps in their choice of food base. A successional trend of fungal species was evident in the age series of stumps (0-16 yr after logging). There was no significant relationship between the absence of A. luteobubalina and the presence of other fungal species on stumps, but there was a significant correlation between the percent stump base colonized by A. luteobubalina and presence of other fungi, indicating some degree of natural suppression of A. luteobubalina. More than 80 wood decay fungi were observed on stumps, some of which are cosmopolitan, such as Coriolus versicolor (L. ex Fr.) Quel. and Stereum hirsutum (Wild. ex Fr.) S.F. Gray, but a number of which are yet undescribed.

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