Possible flight path connecting the nursery colony with the foraging area (2D)
Possible flight path connecting the nursery colony with the foraging area (3D)
Short MPEG-movie (2.5 MB, low res.) showing the flight of the Greater Mouse-Eared Bat
In planning in general and also in landscape planning typically a certain land use or even more than one land use are allocated to a specific area. The functions of a landscape or of its elements and the effects of a specific land use of an area on its surroundings are more or less ignored.
Using the example of the Greater Mouse-eared Bat (Myotis myotis) the functions of certain biotopes are identified.
Instead of the time-consuming telemetric approach the current research project tries to design a GIS-model for the calculation and mapping of potential foraging habitats, based on a known site - the nursery colony. Essential data sources which are to be integrated is information about the specific radius of activity of the bat species and certain structural elements of the landscape which the bat needs for orientation in order to reach the foraging habitats.
Through GIS-based visualization techniques the GIS-data can be utilized in a 3D-visualization environment. The GIS-model is a flexible instrument for incorporating the effects of possible future land-use changes. It allows the modeling of the effects of biotope fragmentation as well as modeling the positive influence of a structural habitat network.
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Possible flight path connecting the nursery colony with the foraging area (2D) |
Possible flight path connecting the nursery colony with the foraging area (3D) |
Short MPEG-movie (2.5 MB, low res.) showing the flight of the Greater Mouse-Eared Bat |
German summary of the study as published in the Neue Zürcher Zeitung of Sept. 2, 1998.
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