Spatial pattern and dispersal in the leafy hepaticPtilidium pulcherrimum
作者:
SöderströmLars,
JonssonBengt Gunnar,
期刊:
Journal of Bryology
(Taylor Available online 1989)
卷期:
Volume 15,
issue 4
页码: 793-802
ISSN:0373-6687
年代: 1989
DOI:10.1179/jbr.1989.15.4.793
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractOccurrence ofPtilidium pulcherrimumin transects and spore dispersal from a single colony have been studied in a coastal spruce forest in northern Sweden. The main substrate type was rotting wood with 75% of all occurrences. Annual spore production was 68,500 spores/m2forest, 640,000 spores/m2substrate and 44,000,000 spores/m2colony. Almost 50% of the spores were deposited within 2.5 m of the colony. Annual spore deposition between colonies was estimated to be between 24,000–39,000 and deposition on the main substrate, decaying logs, was about 340–600 spores/m2forest.P. pulcherrimumshowed a clumped distribution pattern up to about a 15 m neighbourhood distance. This pattern could not be explained by a similar clumping of the substrate. Instead a limitation by distance in establishment due to a deficit of spores is assumed.
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