Effects of forest management on bryophyte communities on deadwood

Müller, Jörg; Boch, Steffen; Blaser, Stefan; Fischer, Markus; Prati, Daniel (2015). Effects of forest management on bryophyte communities on deadwood. Nova Hedwigia, 100(3-4), pp. 423-438. Schweizerbart Science Publishers 10.1127/nova_hedwigia/2015/0242

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Epixylic bryophytes are important components of forest vegetation but are currently endangered by increment of wood harvest and intensive forest management. In this paper we present a study about the relationship between forest management, deadwood abundance, deadwood attributes and species richness of epixylic bryophytes on 30 plots comprising three forest types (managed coniferous, managed deciduous and unmanaged deciduous forests) in three regions in Germany. Additionally we analyzed the relations between deadwood attributes (wood species, decay, deadwood type, size) and bryophytes on deadwood items (n = 799) and calculated species interaction networks of wood species and bryophytes. Overall, species richness of epixylic bryophytes was positively related to deadwood abundance and diversity. The mean deadwood abundance was lowest in unmanaged forests (9.7 m<sup>3</sup> ha<sup>-1</sup>) compared with 15.0 m<sup>3</sup> ha<sup>-1</sup> in managed deciduous and 25.1 m<sup>3</sup> ha<sup>-1</sup> in managed coniferous forests. Accordingly, epixylic bryophyte species richness per plot increased from 7 species per 400 m 2 in unmanaged, 10 in managed deciduous and 16 in managed coniferous forests. The interaction network provided evidence of importance of tree-species diversity for bryophyte diversity and the relevance of particular wood species for rare bryophytes.<br></br> Generally, the results demonstrate a considerable lack of deadwood in all forest types, even in unmanaged forests. Species richness of epixylic bryophytes was strongly limited by available substrates within the observed deadwood abundance ranging up to only 60 m<sup>3</sup> ha<sup>-1</sup>. Altogether, this suggests a high demand to increase both abundance and diversity of deadwood in forests.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Ecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Boch, Steffen; Blaser, Stefan; Fischer, Markus and Prati, Daniel

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0029-5035

Publisher:

Schweizerbart Science Publishers

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

26 May 2015 13:43

Last Modified:

01 Oct 2015 11:28

Publisher DOI:

10.1127/nova_hedwigia/2015/0242

URI:

https://boris.unibe.ch/id/eprint/68983

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