On estimating the duration of phenological stages in bryophytes

[摘要] Estimating the duration of stages in the life cycle of bryophytes based on repeated censuses of populations is a non- trivial task. A method to estimate the length of the period of primary moult in birds is shown here to be also ap - plicable for mosses, using the stage between the events of loss of the calyptra and operculum loss as an example. The duration of this ‘operculum’ stage varied considerably among nine Dutch moss species studied. The species formed three clusters, with average duration of this stage of 8, 23 and 101 days.

[学科分类] 植物学