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Epiphytic lichen diversity in old‐growth and managed Picea abies stands in southern Finland

Epiphytic lichen diversity in old‐growth and managed Picea abies stands in southern Finland Abstract. Epiphytic and epixylic lichens were surveyed on 15 1‐ha plots in mature Picea abies‐dominated boreal forests in southern Finland. The sample plots were classified into three groups according to the age of the dominant tree stand and recent signs of cutting: (1) early mature managed, ‘EM’ (95 ‐109 yr), (2) late mature managed, ‘LM’ (126 ‐ 145 yr) and (3) old‐growth, ‘OG’ (129 ‐ 198 yr). Two data sets on epiphytic and epixylic lichens were recorded from each plot: (1) species on basal trunks and branches of Picea abies and (2) species on all available woody substrates, including basal parts of all tree species, saplings, snags, logs and stumps. 142 epiphytic and epixylic lichen species were found, of which 83 (58%) occurred on P. abies. Mean total numbers of species per sample plot were 69 in EM, 78 in LM and 88 in OG plots, species number on P. abies were 47, 56, and 54 respectively. The LM plots had lower species numbers than OG plots, mainly due to the lack of old Populus tremula trees, but they had higher species number than the EM plots mainly due to the higher age of Picea abies. Differences in species composition, both within and between the three groups, were small. The results suggest that the epiphytic and epixylic lichen diversity in a managed stand can be increased by prolonging the rotation of the stand to >120 yr and by increasing the diversity of habitats in the stand. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Vegetation Science Wiley

Epiphytic lichen diversity in old‐growth and managed Picea abies stands in southern Finland

Journal of Vegetation Science , Volume 9 (2) – Apr 1, 1998

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References (57)

Publisher
Wiley
Copyright
1998 IAVS ‐ the International Association of Vegetation Science
ISSN
1100-9233
eISSN
1654-1103
DOI
10.2307/3237127
Publisher site
See Article on Publisher Site

Abstract

Abstract. Epiphytic and epixylic lichens were surveyed on 15 1‐ha plots in mature Picea abies‐dominated boreal forests in southern Finland. The sample plots were classified into three groups according to the age of the dominant tree stand and recent signs of cutting: (1) early mature managed, ‘EM’ (95 ‐109 yr), (2) late mature managed, ‘LM’ (126 ‐ 145 yr) and (3) old‐growth, ‘OG’ (129 ‐ 198 yr). Two data sets on epiphytic and epixylic lichens were recorded from each plot: (1) species on basal trunks and branches of Picea abies and (2) species on all available woody substrates, including basal parts of all tree species, saplings, snags, logs and stumps. 142 epiphytic and epixylic lichen species were found, of which 83 (58%) occurred on P. abies. Mean total numbers of species per sample plot were 69 in EM, 78 in LM and 88 in OG plots, species number on P. abies were 47, 56, and 54 respectively. The LM plots had lower species numbers than OG plots, mainly due to the lack of old Populus tremula trees, but they had higher species number than the EM plots mainly due to the higher age of Picea abies. Differences in species composition, both within and between the three groups, were small. The results suggest that the epiphytic and epixylic lichen diversity in a managed stand can be increased by prolonging the rotation of the stand to >120 yr and by increasing the diversity of habitats in the stand.

Journal

Journal of Vegetation ScienceWiley

Published: Apr 1, 1998

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