| 摘要: |
Wood-decaying polypores are macrofungi with the capacity to decompose lignocellulose, and hence play essential roles in forest ecosystems. Host (tree species) range and preference are among the most important factors influencing polypore communities. Here, we studied polypore ecological patterns between gymnosperm and angiosperm trees based on data collected from more than 10 yr field investigations in Fenglin and Changbaishan Nature Reserve, northeast China (boreal and temperate zone). Although species richness was similar between the polypores associated with the two tree groups, gymnosperm trees showed: (1) a higher similarity in polypores species; (2) a lower polypore species richness on fallen trunks; (3) a lower polypore species richness in unprotected forests; (4) fewer common polypores but more occasional species; (5) a lower proportion of white rot but a higher proportion of brown rot polypores. In general, our findings supported previous views that different preferences between gymnosperm and angiosperm trees in polypores are probably caused by different structure and content of lignins between the two tree groups. |
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