Study

Rehabilitation of habitat connectivity between two important marsh areas divided by a major road with heavy traffic

  • Published source details Scoccianti C. (2006) Rehabilitation of habitat connectivity between two important marsh areas divided by a major road with heavy traffic. Acta Herpetologica, 1, 77-79

Actions

This study is summarised as evidence for the following.

Action Category

Restore habitat connectivity

Action Link
Amphibian Conservation

Install culverts or tunnels as road crossings

Action Link
Amphibian Conservation
  1. Restore habitat connectivity

    A before-and-after study in 1994–2004 of a brackish and freshwater wetland in southern Tuscany, Italy (Scoccianti 2006) found that restoring connectivity between wetlands, by raising a road on a viaduct, significantly decreased deaths of migrating amphibians. Post-construction, many species were found migrating between wetlands under the viaduct. No remains of amphibians were found on the road post-construction, compared to thousands during some periods pre-construction. For example, after a night rainstorm in July 1997, over 6,500 newly emerged Italian edible frog Rana hispanica juveniles were counted on a 100 m stretch of road. A viaduct 215 m long was constructed in 2003 to raise the road. The supports of the viaduct (1.6 m high) were built on a bank 1 m higher than potential flood waters to prevent mixing of wetlands. Drift-fencing was installed for 300 m from each end of the viaduct along both sides of the road. Amphibian road kills were monitored before and after construction.

     

  2. Install culverts or tunnels as road crossings

    A before-and-after study in 1994–2004 of a brackish and freshwater wetland in southern Tuscany, Italy (Scoccianti 2006) found that raising a road on a viaduct resulted in a significant decrease in amphibian road deaths. Following construction, no remains of amphibians were found on the road, compared to thousands during some periods pre-construction. For example, after a night rainstorm in July 1997, over 6,500 newly emerged Italian edible frog Rana hispanica juveniles were counted on a 100 m stretch of road. Many species used the open space under the viaduct to migrate between wetlands. A viaduct 215 m long was constructed in 2003 to raise a road. The supports of the viaduct (1.6 m high) were built on a bank 1 m higher than potential flood waters to prevent mixing of wetlands. Drift-fencing was installed for 300 m from each end of the viaduct along both sides of the road. Amphibian road kills were monitored before and after construction.

     

Output references

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