Conservation Evidence strives to be as useful to conservationists as possible. Please take our survey to help the team improve our resource.

Providing evidence to improve practice

Individual study: Using clay drain seals to assess the use of dry culverts installed to allow mammals to pass under the A1 trunk road, Northumberland, England

Published source details

Baker A., Knowles M. & Latham D. (2007) Using clay drain seals to assess the use of dry culverts installed to allow mammals to pass under the A1 trunk road, Northumberland, England. Conservation Evidence, 4, 77-80

Summary

Monitoring the use of dry culverts installed as underpasses enables their effectiveness to be evaluated. We used clay-based drain seals to record mammal tracks in three different culverts under a section of a major road in Northumberland, UK. Prints including badger Meles meles, American mink Mustela vison and hedgehog Erinaceus europaeus were recorded on the clay drain seals demonstrating animal movement in both directions through the culverts. The prints were well preserved and easily recognisable.