Road ecology blog:
Images below: Amphibian tunnel with open slotted roof (ACO) and barrier or wall for amphibians, integrated into roadbed, Deelenseweg, between Hoenderloo and Arnhem, Gelderland, The Netherlands
The open slotted roof allows for light, and air and soil temperature and humidity inside the tunnel to be similar to the surroundings.
Amphibian tunnel with open slotted roof and barrier or wall forAmphibian tunnel with open slotted roof and barrier or wall for amphibians, integrated into roadbed, Deelenseweg, between Hoenderloo and Arnhem, Gelderland, The Netherlands
Amphibian tunnel with open slotted roof and barrier or wall forAmphibian tunnel with open slotted roof and barrier or wall for amphibians, integrated into roadbed, Deelenseweg, between Hoenderloo and Arnhem, Gelderland, The Netherlands
Image below: Common toad (Bufo bufo) screens and buckets and tunnel with metal open roof at access road, Rijksstraatweg Elsterstraatweg N225 just west of Elst, Utrecht, The Netherlands
Common toad (Bufo bufo) screens and buckets and tunnel at accessCommon toad (Bufo bufo) screens and buckets and tunnel at access road, Rijksstraatweg Elsterstraatweg N225 just west of Elst, Utrecht, The Netherlands