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Heterogeneity of forest mollusc communities as an effect of natural and anthropogenic conditions on the example of oak-hornbeam forests in the Wielkopolska region, midwestern Poland
Anna Jankowiak
Abstract
Heterogeneity of land mollusc communities in oak-hornbeam forests was studied in the Wielkopolska region, midwestern Poland, in 14 forests at 25 study sites, 11 with planted pine and 14 without it. Most of the 42 recorded gastropod species were typical of forests, widespread and common in Poland. The stenotopic species such as clausiliids and Merdigera obscura were restricted to well preserved forests. The presence and especially abundance of these species may, therefore, have some bioindicator values reflecting the forest conservation status. Between-site assemblage heterogeneity was an effect of both human impact and natural conditions. The former appeared in the occurrence or lack of planted pine, influencing the habitat conditions, thus oak-hornbeam forests with pine were poorer in gastropod species and individuals in almost all cases. The latter resulted from natural heterogeneity of oak-hornbean forests, reflected in various combinations of habitat factors. Habitat trophic conditions, cover of the herbaceous layer and the percentage of soft-leaved dendroflora, rich in an easily absorbable calcium, were the most important for molluscs. The group of significant factors also included a soil calcium content and soil pH. However, not a single element but a combination of habitat factors was decisive for the structure of particular mollusc communities.- Record ID
- UAM17d281a2cb0245328c14a2798512b4d7
- Diploma type
- Doctor of Philosophy
- Author
- Title in Polish
- Zróżnicowanie struktury leśnych zgrupowań ślimaków jako efekt uwarunkowań naturalnych i antropogenicznych na przykładzie grądów w Wielkopolsce
- Title in English
- Heterogeneity of forest mollusc communities as an effect of natural and anthropogenic conditions on the example of oak-hornbeam forests in the Wielkopolska region, midwestern Poland
- Language
- pol (pl) Polish
- Certifying Unit
- Faculty of Biology (SNP/WB/FoB) [Not active]
- Discipline
- environmental protection / (biological sciences domain) / (biological sciences)
- Status
- Finished
- Year of creation
- 2016
- Start date
- 28-02-2014
- Defense Date
- 16-09-2016
- Title date
- 23-09-2016
- Supervisor
- Keywords in English
- broadleaf forests
- Abstract in English
- Heterogeneity of land mollusc communities in oak-hornbeam forests was studied in the Wielkopolska region, midwestern Poland, in 14 forests at 25 study sites, 11 with planted pine and 14 without it. Most of the 42 recorded gastropod species were typical of forests, widespread and common in Poland. The stenotopic species such as clausiliids and Merdigera obscura were restricted to well preserved forests. The presence and especially abundance of these species may, therefore, have some bioindicator values reflecting the forest conservation status. Between-site assemblage heterogeneity was an effect of both human impact and natural conditions. The former appeared in the occurrence or lack of planted pine, influencing the habitat conditions, thus oak-hornbeam forests with pine were poorer in gastropod species and individuals in almost all cases. The latter resulted from natural heterogeneity of oak-hornbean forests, reflected in various combinations of habitat factors. Habitat trophic conditions, cover of the herbaceous layer and the percentage of soft-leaved dendroflora, rich in an easily absorbable calcium, were the most important for molluscs. The group of significant factors also included a soil calcium content and soil pH. However, not a single element but a combination of habitat factors was decisive for the structure of particular mollusc communities.
- Thesis file
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- File: 1
- Rozprawa doktorska.pdf
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/phd/UAM17d281a2cb0245328c14a2798512b4d7/
- URN
urn:amu-prod:UAM17d281a2cb0245328c14a2798512b4d7