One of the reasons for the disappearance of this moss from two of the Scottish sites is due to the afforestation of much of these upland bogs. This dates from the time when upland mires and bogs were not considered to be sites worthy of protecting. As well as shading, the moss is affected by changes in the water quality, particularly increased acidity and higher nutrient levels. Drainage of bogs and peat-cutting are also potential threats to this species, along with inappropriate gathering of all sphagnum species by the horticultural trade and by local collectors.