Species richness of epiphytic lichens in coniferous forests: the effect of canopy openness

被引:20
作者
Marmor, Liis [1 ]
Torra, Tiiu [1 ]
Saag, Lauri [1 ,2 ]
Randlane, Tiina [1 ]
机构
[1] Univ Tartu, Inst Ecol & Earth Sci, EE-51005 Tartu, Estonia
[2] Estonian Bioctr, EE-51010 Tartu, Estonia
关键词
TEMPERATE RAIN-FOREST; BRITISH-COLUMBIA; FRAXINUS-EXCELSIOR; LOBARIA-PULMONARIA; POLLARDED TRUNKS; WESTERN NORWAY; PICEA-ABIES; LIGHT; GROWTH; ACCLIMATION;
D O I
10.5735/085.049.0606
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Epiphytic lichen communities were studied in old coniferous forests across Estonia to find out the effect of site openness on the lichen species richness. All lichen species were recorded on the basal 2 m of 105 Picea abies and 105 Pinus sylvetsris trunks. The canopy openness readings were taken with a spherical densiometer around every sampled tree. The number of species on the trunks of both tree species increased significantly with increasing canopy openness. Nine lichen species, e.g. Cladonia cenotea, Lecidea nylanderi, Platismatia glauca, were significantly favoured by higher light availability, and only one species, Coenogonium pineti, by lower light availability. The results demonstrate that in the coniferous forests higher light availability supports higher species richness of epiphytic lichens on the lower trunk of trees.
引用
收藏
页码:352 / 358
页数:7
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