Italy has the highest level of faunal biodiversity in Europe, with over 57,000 species recorded, representing more than a third of all European fauna. Italy's varied geological structure contributes to its high climate and habitat diversity. The Italian peninsula is in the centre of the Mediterranean Sea, forming a corridor between central Europe and North Africa, and has  of coastline. Italy also receives species from the Balkans, Eurasia, the Middle East. Italy's varied geological structure, including the Alps and the Apennines, Central Italian woodlands, and Southern Italian Garigue and Maquis shrubland, also contributes to high climate and habitat diversity.