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Aim To determine the relationships between otter (Lutra lutra) distribution dynamics and environmental and spatial constraints over a 20‐year period.
Location Andalusia, southern Iberian Peninsula.
Methods We synthesized otter distribution data from three otter surveys (1985, 1995 and 2005) using subcatchment areas defined by hydrological barriers. Subcatchments were characterized by two ‘natural’...
Aim To test whether functional homogenization of bird communities is promoted by anthropogenic landscape transformation, using specialization and habitat preference indices that account for the multidimensionality of niches.
Location Catalonia, north‐east Iberian Peninsula.
Methods We used data on bird species occurrences and landscape features in 2834 1‐km2 squares. Three orthogonal landscape...
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