フランスアルプス北部,エギュイグリーヴ山地の岩塊斜面におけるライケンの被覆

概要

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Lichen coverage and larger thalli of Rhizocarpon subgenus were measured at the block fields of the Aiguille-Grive Mountains, northern French Alps, which includes inactive and/or fossil rockglaciers. Little significant difference in lichen-cover was shown among geomorphological units such as upper and lower parts of rockglaciers, aligned blockfields, rock avalanche. The larger thalli showed, however, significant difference among some geomorphological units. These results imply that careful attention should be paid to chronological studies of such block fields. Spatial variation of the lichen-cover and larger thalli suggests possible effects of particular site characteristics (topographic relief, snowcover, humidity etc.) on growth of lichens. Methodology (sampling method, measurement errors, statistical analysis etc.) would be also of interest for studies of lichenometry.
流通経済大学の論文