Basidiome production of ectomycorrhizal and saprophytic agaricoid fungi respond differently to forest management

ROMANO, GONZALO M.; GRESLEBIN, ALINA G.; LECHNER, BERNARDO E.

CANADIAN JOURNAL OF FOREST RESEARCH

NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS

Año: 2020 vol. 50 p. 102 - 112

0045-5067

Forest management generates border effects in mature dense forests. How agaricoid fungi27 species react to this disturbance depends on climatic and site conditions as well as management28 system and its intensity. We compared abundance and richness of ectomycorrhizal and29 saprophytic species in managed and unmanaged stands in Nothofagus pumilio forests of30 Patagonia, Argentina. We found basidiomata abundance and richness of ectomycorrhizal and31 saprophytic species were favoured by different forest structure and climatic factors.32 Ectomycorrhizal species basidiomata production was significantly correlated to average relative33 humidity of the 15 days prior to sampling and number of trees per hectare existing prior to34 management activities. The latter implies the number of trees that an ecosystem is capable of35 sustaining is crucial to the establishment of ectomycorrhizal species. Saprophytic species were36 favoured by the increased amount of woody debris generated by logging together with maximum37 temperature of the 15 days prior to sampling and annual average precipitations. Our results38 indicate that agaricoid fungi are not affected by forest management of low to medium intensity,39 establishing the forestry level that fungal community can tolerate without loss of species in40 Patagonia.