Immenberg (Thurgau)
The Immenberg is a range of hills southeast of Frauenfeld in the canton of Thurgau . A large part of the forest crest is a nature reserve with a large variety of flora and fauna.
| Immenberg | ||
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| height | 707 m | |
| location |
 Switzerland Canton Thurgau, municipality Stettfurt TG
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| Coordinates | 715 771 / 265 651 | |
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| rock | Molasses | |
| particularities | Nature reserve | |
history
As early as 779, the name Immo, a large landowner, was on record several times in connection with the Immenberg. Excavations by the Office for Archeology of the Canton of Thurgau revealed that the Immenberg was inhabited by people over 6000 years ago. On the high plateau is the Spiegelberg Castle , which was mentioned for the first time around 1200 and today the neck moat and the castle hill remind of the former complex. Not far away is the Sonnenberg Castle , which still exists. Today the Immenberg is a recreational area for excursions and hikes. The nature reserve is of international importance thanks to the special flora and fauna.
Nature reserve
As early as 1939, an excursion by nature lovers showed that the Immenberg represented a special landscape with the greatest diversity of species. In 1970 efforts were made to put the area under protection. This was done in 1977 with the inclusion in the federal inventory for landscapes worthy of protection. Today the Immenberg nature reserve covers 39 hectares and is largely owned by Pro Natura .
geology
While the Thurgau landscape is largely shaped by ground moraines from the Ice Ages and alluvial plains , the Molasse underneath comes to light on Immenberg . Molasse soils - Nagelfluh, sandstone, marl - are poor in nutrients. At the same time, the exposure of the steep slope to the south plays an important role, as does the erosion caused by several streams.
Flora and fauna
The southern exposure, with the hot microclimate and the barren subsoil, created a special flora and fauna. Plants that are called "hunger artists" could thrive here. Gentle interventions by the Thurgau Forestry Office led to the emergence of a light spruce forest, which formed the ideal environment for the emergence of an orchid paradise. 26 different species were registered.
Many species of insects, butterflies and birds have settled in the sandstone rocky slopes. The rare forest devil ( Erebia aethiops ) is particularly worth mentioning .
literature
- Pro Natura magazine. 1/2014 (Supplement Pro Natura local. )
- René Grädel: Supplement 4. Contribution to the flora of Frauenfeld. In: Communications from the Thurgau Natural Research Society, 1986; 47: pp. 5-60.
Web links
Individual evidence
- ↑ place names
- ↑ Pro Natura magazine. 1/2014 (supplement Pro Natura local ), p. 6.