Study

Migration of toads during the spawning season at Stallauer Weiher lake, Bad Tölz, Bavaria

  • Published source details Haslinger H. (1989) Migration of toads during the spawning season at Stallauer Weiher lake, Bad Tölz, Bavaria. Amphibians and Roads: Proceedings of the Toad Tunnel Conference, Rendsburg, Federal Republic of Germany, 181-182.

Actions

This study is summarised as evidence for the following.

Action Category

Use humans to assist migrating amphibians across roads

Action Link
Amphibian Conservation

Install culverts or tunnels as road crossings

Action Link
Amphibian Conservation
  1. Use humans to assist migrating amphibians across roads

    A study in 1980–1988 of a human-assisted road crossing in Bad Tölz, Bavaria (Haslinger 1989) found that thousands of toads were moved across the road each year. In 1980, a total of 15,000 toads were collected and in 1988 the figure was 7,532. Eight tunnels with wire-netting fences on both sides of the road were installed. Animals did not use tunnels and so those at the fence were collected by hand and moved across the road twice a year, before and after breeding.

     

  2. Install culverts or tunnels as road crossings

    A replicated study in 1980–1988 of eight tunnels with barrier fencing in Bavaria, West Germany (Haslinger 1989) found that common toads Bufo bufo did not use the tunnels. Tunnels were 60 cm in diameter. Wire-netting fences 25 cm high were installed on both sides of the road. Fences were bent over at the top to prevent toads climbing over.

     

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust