Table 6 Description and origin of land-use parameter and abiotic factors
From: Narrow environmental niches predict land-use responses and vulnerability of land snail assemblages
Habitat | Land-use parameter | Desciption/unit | Range | References | Dataset ID | Source/owner | Year used |
|---|---|---|---|---|---|---|---|
Grassland | Mowing | Frequency per year | 0–3 | Blüthgen et al. 2012 [41] | 19266 version 1.15.12 | Katrin Lorenzen | Mean of 2015/2016 |
|  | Grazing | Livestock units × days of grazing × ha−1 × year−1 | 0–851 | Blüthgen et al. 2012 [41] |  | Wolfgang Weisser | Mean of 2015/2016 |
|  | Fertilization | Kg nitrogen × ha−1 × year−1 | 0–433 | Blüthgen et al. 2012 [41] |  | Manfred Ayasse | Mean of 2015/2016 |
|  | Land-use index LUI | The compound LUI index adds fertilization plus mowing plus grazing intensities. Each individual LUI component (fertilization, mowing and grazing) was standardized relative to its mean within the corresponding model region | 0.53–4.52 | Blüthgen et al. 2012 [41] |  | Markus Fischer Juliane Vogt | Mean of 2015/2016 |
Forest | Proportion of non-native trees | Estimated as the proportion of harvested, living and dead wood volume of non-natural tree species to the sum volume of all tree species | 0–1 | Kahl and Bauhus 2014 [40] | 24646 version 1.2.8 | Peter Schall Christian Ammer Jürgen Bauhus | 2017 |
|  | Proportion of dead-wood with saw cuts | Represents the proportion of dead wood with saw cuts to the total amount of dead wood | 0–1 | Kahl and Bauhus 2014 [40] |  |  | 2017 |
|  | Proportion of wood harvested | Describes the proportion of harvested tree volume within a stand and is estimated by the presence of cut stumps and calculated as the ratio of harvested volume to the sum of standing, harvested and dead wood volume | 0–1 | Kahl and Bauhus 2014 [40] |  |  | 2017 |
|  | Forest management index Formi | The Formi is the sum of three components taking into account: 1. the proportion of harvested tree volume, 2. the proportion of tree species that are not part of the natural forest community and 3. the proportion of dead wood showing signs of saw cuts. Each component ranges between 0 (no sign of management) and 1 (intensive management) | 0–2.82 | Kahl and Bauhus 2014 [40] |  |  | 2017 |
Grassland/forest | Soil pH |  | 3.0–6.7 |  | 22246 Verion 1.1.9 | Ingo Schöning | Mean 2017 |
| Â | Â | Â | Â | Â | Â | Theresa Klotzing | Â |
| Â | Â | Â | Â | Â | Â | Antonios Apostolakis | Â |
| Â | Â | Â | Â | Â | Â | Susan Trumbore | Â |
|  | Soil moisture | Soil moisture in 10 cm depth, as percentage of the volumemetric water content | 8.55–55.22 |  | Weather station | Marion Schrumpf | Mean May 2017 |
|  |  |  |  |  | Climate tool | Falk Hänsel |  |
|  |  |  |  |  |  | Stephan Wöllauer |  |
| Â | Â | Â | Â | Â | Â | Thomas Nauss | Â |