uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The regeneration capabilities of bryophytes in rich fen restoration
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Ecological Botany.
2007 (English)In: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 135, no 3, 435-442 p.Article in journal (Refereed) Published
Abstract [en]

Biodiversity in wetland habitats is strongly affected by drainage. In Sweden, rich fens (alkaline fens) have been particularly affected by drainage campaigns for forestry and conversion to agricultural land. Fragmentation of the landscape, invasion of tall vascular plants as well as Polytrichum and Sphagnum mosses and substrate degradation all lead to reduced plant diversity.

We evaluated the recolonization potential of four characteristic rich fen bryophyte species that use to decrease rapidly after drainage (Scorpidium scorpioides, Scorpidium cossonii, Pseudocalliergon trifarium and Campylium stellatum) by performing transplantation studies with gametophyte fragments in recently hydrologically restored rich fens. In greenhouse and field experiments 1 cm fragments of all four species had a high survival rate and established well, especially after surface liming of the peat. A protective cover increased the colonization success and the growth potential of the added fragments. Even small alterations of the water level (5 cm) resulted in differences in biomass growth of the fragments of S. cossonii and C. stellatum. Our results show that it is possible to reintroduce bryophyte species lost after drainage using gametophyte fragments as propagules, and that these techniques seem feasible for a number of characteristic rich fen bryophytes. These findings will be of importance when methods for practical restoration of rich fens are developed.

Place, publisher, year, edition, pages
2007. Vol. 135, no 3, 435-442 p.
Keyword [en]
Brown mosses, Colonization, Dispersal limitation, Drainage, Liming, Peatland
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-97296DOI: 10.1016/j.biocon.2006.10.017ISI: 000245695600015OAI: oai:DiVA.org:uu-97296DiVA: diva2:172166
Available from: 2008-05-16 Created: 2008-05-16 Last updated: 2016-04-22Bibliographically approved
In thesis
1. Plant responses after drainage and restoration in rich fens
Open this publication in new window or tab >>Plant responses after drainage and restoration in rich fens
2008 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Rich fens are an important, but threatened, habitat type in the boreal landscape. In this thesis I have examined responses of rich fen vascular plants and bryophytes after drainage and restoration.

The effects of drainage on the rich fen flora were observed in a long time study and the responses were rapid and drastic. During an initial stage a rapid loss of brown mosses was observed, followed by increases of sedges and early successional bryophytes, and later by an expansion of dominants. Initial effects of hydrological restoration showed that rewetting can promote re-establishment of an ecologically functional rich fen flora, but has to be combined with other treatments, such as mowing or surface disturbance.

After restoration, re-establishment of locally extinct species may be hampered by dispersal limitations. To test if reintroductions could help to overcome dispersal limitations I performed transplantation studies with four common rich fens bryophytes to a rewetted site. The results showed that the species were able to establish, and that survival and growth were promoted by desiccation protection and liming.

I further examined competition among three of the most common bryophytes in natural boreal rich fens that usually occur mixed in a mosaic pattern but show small but important microtopographical niche separation. The results indicate similar competitive abilities among the species, and no case of competitative exclusion occurred. The results help to explain the coexistence of these species under natural conditions with microtopographic variation and repeated small scale natural disturbances.

Restoring a functional flora in drained rich fens is a complex task, which requires understanding of underlying causes of substrate degradation in combination with suitable restoration measures. The thesis suggests how the results can be used in practical restoration work, and also stresses the need for monitoring of restoration experiments over longer time.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2008. 33 p.
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 439
Ecology, brown mosses, bryophytes, colonization, competition, dispersal limitation, liming, mire, peatland, rewetting, wetland restoration, Ekologi
National Category
Evolutionary Biology Ecology
urn:nbn:se:uu:diva-8882 (URN)978-91-554-7218-4 (ISBN)
Public defence
2008-06-07, the Lecture hall, Dept. of Plant Ecology, Villavägen 14, Uppsala, 13:00
Available from: 2008-05-16 Created: 2008-05-16 Last updated: 2016-04-25Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Mälson, KalleRydin, Håkan
By organisation
Ecological Botany
In the same journal
Biological Conservation
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 376 hits
ReferencesLink to record
Permanent link

Direct link