Faculty of Biology, University of Latvia
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Acta Univ Latv (2008) 745: 103–114
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Environmental and

Acta Univ Latv (2008) 745: 103–114

Orginal Article

Ecology of epixylic bryophytes in Eurosiberian alder swamps of Latvia

Linda Madžule*, Guntis Brūmelis
Department of Botany and Ecology, Faculty of Biology, University of Latvia, Kronvalda Bulv. 4, Rīga LV-1586, Latvia
*Corresponding author, E-mail: linda.madzule@gmail.com


Fallen dead wood is an important structural element in Eurosiberian alder swamp forests that supports diversity of epixylic bryophyte species. The aim of the present study was to assess the bryophyte diversity on logs in relation to abiotic and biotic factors. Four Eurosiberian alder swamp forests stands were studied in three territories of Latvia – Moricsala Nature Reserve, Zvarde Mezi Nature Park and Slitere National Park. In total 102 logs were described. Overall 59 bryophyte species were recorded. The main factor affecting the richness of bryophyte species was decay stage. Composition of bryophyte species gradually changed during succession. Logs that were in the mid decay stage supported the largest number of bryophyte species. The visible perimeter of logs did not affect composition and number of bryophyte species. Differences in bryophyte species composition were found between deciduous and coniferous logs. Some differences in flora of epixylic bryophyte species were recognized between the studied territories.

Key words: decay stage, epixylic bryophytes, Eurosiberian alder swamps, indicator species analysis, logs.

Acta Univ Latv (2008) 745: 103–114
 DOI: http://doi.org/10.22364/eeb

Prof. Gederts Ievinsh
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University of Latvia

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