Changes in the moss flora of The Netherlands

From 1900 onwards, changes in abundance of Dutch moss species have been recorded. Some species have declined (23%, of which 4% have become extinct), while others have increased (28%, of which 9% were species unrecorded earlier). The declining species show a preference for oligotrophic habitats, main...

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Bibliographic Details
Published in:Biological conservation 1992, Vol.59 (2), p.133-137
Main Author: Greven, H.C.
Format: Article
Language:English
Subjects:
botanical composition
Bryophyta
Bryopsida
declining species
eutropic habitats
extinct species
gametophytes
habitats
increasing species
mesotropic habitats
mosses and liverworts
nutritional status
oligatrophic habitats
plant anatomy
plant density
population change
population dynamics
sexual reproduction
size
spatial distribution
species
species diversity
variation
wild plants
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Summary:From 1900 onwards, changes in abundance of Dutch moss species have been recorded. Some species have declined (23%, of which 4% have become extinct), while others have increased (28%, of which 9% were species unrecorded earlier). The declining species show a preference for oligotrophic habitats, mainly marshes, which have become threatened during recent decades. The increasing species mostly occur on bare soil, riverbanks and walls. They are rather tolerant to disturbance and are predominantly more or less associated with eutrophic habitats. Apart from extinction and changes in species abundance, species-fitness also appears to be affected, such as a decline in sexual reproduction and in the size of the gametophyte. Such changes can be observed in various species, and may lead to a decline in the near future—although some of these species are still fairly abundant.
ISSN:0006-3207
1873-2917
DOI:10.1016/0006-3207(92)90572-5