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Pioneer dwarf willow may facilitate tree succession by providing late colonizers with compatible ectomycorrhizal fungi in a primary successional volcanic desert
Author(s) -
Nara Kazuhide
Publication year - 2006
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.2006.01744.x
Subject(s) - larix kaempferi , biology , primary succession , ecological succession , botany , ectomycorrhiza , ecology , vegetation (pathology) , willow , propagule , generalist and specialist species , woody plant , shrub , larch , mycorrhiza , symbiosis , habitat , medicine , genetics , pathology , bacteria
Summary• To advance understanding of the contribution of ectomycorrhizal (ECM) fungi to tree successional processes, natural establishment patterns of secondary colonizing hosts and their ECM fungal communities were investigated with special reference to pioneer hosts. • In the volcanic desert on Mount Fuji, Japan, vegetation is sparsely distributed, resembling islands in a sea of scoria. Of 509 vegetation islands in the research area, 161 contained Salix reinii ( Salix ), the first colonizing ECM host species. The spatial coincidence between secondary colonizing timber species and Salix was analysed, and ECM fungal communities were studied using molecular identification methods. • I found 39 and 26 individuals of Betula ermanii and Larix kaempferi , respectively. Without exception, these individuals were all accompanied by Salix . The ECM fungal communities of these timber species showed high similarity to that of Salix and were dominated by generalists that were compatible with two or more plant families. • In this desert, available ECM propagules are limited. Pioneer Salix may contribute to tree succession by providing adjacent late colonizers with compatible ECM fungal symbionts.