The indicator measures the degree to which species movements between different parts of the landscape are interrupted by barriers. The more barriers fragmenting the landscape, the more difficult will be the species movement through the landscape. This is measured by the effective mesh density (Seff) and includes the so called -cross-boundary connections- procedure that eliminates the bias arising from the patches shared by two or more reporting units (i.e. administrative boundaries) (Jaeger, 2000; Moser et al., 2007; EEA and FOEN, 2011). It is expressed in number of meshes per 1,000 km2 - the more fragmented is the landscape, the higher is the effective mesh density of a given region.The level of detail of this indicator is per NUTS0.
- Moser, B., Jaeger, J.G., Tappeiner, U., Tasser, E. and Eiselt, B. (2007).Modification of the effective mesh size for measuring landscape fragmentation to solve the boundary problem. Landscape Ecology, 22, 447-459.
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- Landscape division, splitting index, and effective mesh size: new measures of landscape fragmentation Provisional data
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