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1

Diet of four rodent species from Robinia pseudo-acacia stands in South Moravia

100%
Heroldova M.
Acta Theriologica
|
1994
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tom 39
|
nr 3
The importance of Robinia pseudo-acacia stands as a food supply for four species of small mammals, Apodemus sylvaticus (Linnaeus, 1758), A. flavicollis (Melchior, 1834), Clethrionomys glareolus (Schreber, 1780), Microtus arvalis (Pallas, 1778) was studied. The trophic diversity and equitability in all rodent species suggested a rich food supply. Greater trophic overlap as well as greater qualitative and quantitative similarity of food was found in both species of Apodemus only. Robinia stands not only represented a refuge but also offered enough food for all four species of rodents.
2

Effect of seed crop of trees on the abundance and body parameters of granivorous mammals in isolated forest stands of Southern Moravia [Czech Republic]

63%
Suchomel J., Heroldova M.
Polish Journal of Ecology
|
2008
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tom 56
|
nr 1
Effects of heavy seed crop (mainly oak mast) in year 2003 and 2004 (no seed crops) on small mammal communities in three isolated stands of broad leaved lowland forests (area 60–280 ha) with different management were studied in southern Moravia in three sites: (1) close-to-nature not managed floodplain forest – Ulmeto–Fraxinetum carpineum (FF), (2) managed forest – Carpineto-Quercetum acerosum (MF), (3) pheasantry – Ulmeto-Fraxinetum carpineum, Saliceto- Alnetum and Carpineto-Quercetum acerosum, with a considerable number of biotopes including open areas (PH). We presumed the influence of seed production on mammal species, especially granivorous rodents. In the most numerous species (Apodemus flavicollis (Mel.), A. sylvaticus (L.) and Myodes glareolus (Pallas)) the demographic parameters (abundance, sex ratio), body mass, and body length were compared between populations in 2003 and 2004 in each stand. Animals were trapped in snap mousetraps laid out in lines. In 2003 reproduction of both Apodemus sp. Was extended to November in contrast to 2004, when it ceased already in the end of summer. Individual body mass of animals were significantly higher in 2004 vs. 2003 in all three species (A. flavicollis, P = 0.01; A. sylvaticus, P <0.01 and Myodes glareolus, P <0.05) but body length was higher only in case of A. sylvaticus (P <0.01). The forest stands under study in an intensively managed agroecosystem in southern Moravia play an important role as a refuge for small mammals.
3

Effects of deforestation on structure and diversity of small mammal communities in the Moravskoslezske Beskydy Mts [Czech Republic]

51%
Bryja J., Heroldova M., Zejda J.
Acta Theriologica
|
2002
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tom 47
|
nr 3
During 1970s and 1980s, a large area of mountains in the Czech Republic was influenced by long-term industrial air pollution. Among the most degraded areas were the peaks of the Moravskoslezske Beskydy Mts, where vast clearings resulted from emissions and subsequent forest destruction. This study is aimed at determining the degree of deforestation that is necessary to cause changes in structure and species diversity of small mammal communities that were observed previously. Communities of rodents and insectivores were monitored for a minimum of 3 years at two mountain ranges of the Moravskoslezske Beskydy Mts (Czech Republic) by standard mouse snap-traps. The localities (Smrk and Knehyne) differ by the degree of human dis­turbance. Clearings on Smrk Mt are very large (> 30 ha) with no remaining original forest growth as a result of intensive air pollution, unlike the same habitat type at Knehyne Mt, where the clearings are minor (< 3 ha) and contain living solitary trees. Structure and diversity of small mammal communities in clearings were compared with those from original forests and other mountain habitats. Communities of small mammals at clearings in Smrk Mt (with dominating Microtus agrestis) are structurally very different from all other habitats, while structure of communities at Knehyne clearings are very similar to those of original mountain forest (Complete linkage clustering based on Renkonen index). The community of the original mountain spruce forest at Knehyne had the highest species diversity (according to Shannon-Weaver, Brillouin, and Simpson indices, Shannon evenness, and rarefaction), while species diversity at clearings of Smrk was the lowest. Shannon diversity of community at Knehyne primeval forest is similar to that of Knehyne clearings, while at Smrk Mt the forest diversity is higher than that of clearings. The species diversity of mountain forest and clearings at Knehyne Mt was significantly higher than that in the same habitats at Smrk Mt. Our results obtained in disturbed habitats at Knehyne and Smrk Mts suggest that the degree of deforestation may influence the presence and/or the degree of community changes. If the forest destruction is relatively small (clearings < 3 ha), the structure and diversity of small mammal communities do not differ from those of original forest.
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