Changes in the structure of a Dactylorhiza incarnata (L.) Soó population during the overgrowing of a meadow-bog community complex in the Moscow region

The overgrowing of meadow-bog communities by shrubs and trees (age 5–40 years, crown closure 0.4–0.9) leads to a decrease in incident illumination. As a consequence, juvenile and generative plants disappear from D. incarnata population loci, their average ecological density decreases, and the loci e...

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Bibliographic Details
Published in:Russian journal of ecology 2009, Vol.40 (1), p.39-43
Main Author: Zheleznaya, E. L.
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Bogs
Dactylorhiza
Ecology
Environment
Gene loci
Life Sciences
Meadows
Plant ecology
Plant reproduction
Population genetics
Population structure
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Summary:The overgrowing of meadow-bog communities by shrubs and trees (age 5–40 years, crown closure 0.4–0.9) leads to a decrease in incident illumination. As a consequence, juvenile and generative plants disappear from D. incarnata population loci, their average ecological density decreases, and the loci enter the state of regression. The digging activity of wild boars disrupts phytocenotically closed groups of longirhizomatous herbs, thereby creating favorable conditions for seed reproduction of D. incarnata . The species begins to form population loci with a complete ontogenetic spectrum and high ecological density, eventually restoring the normal (definitive) population structure.
ISSN:1067-4136
1608-3334
DOI:10.1134/S1067413609010068