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FROGLIFE ADVICE SHEET

AMPHIBIANS AND ROADS

Guidelines to help reduce injury and death of amphibians from vehicles and road drains

 

What can I do to help? Who should I contact?

Each spring common toads Bufo bufo and other amphibians follow traditional migration routes to their spawning ponds. Many of their routes cross roads, and this inevitably leads to road casualties. If you would like to help reduce these road casualties, and "help a toad across the road", please follow the guidelines in this leaflet.

Spread throughout Britain there are over 400 known places where toads cross roads in large numbers. You can join one of the groups that help toads by joining a 'toad patrol' on rainy evenings when activity is at a peak. You may also find new places where amphibians cross roads and in turn seek others to help you organise a patrol.

Information on amphibian crossings are held in three places; a central registration point at the national offices of Froglife, county highway authorities and county co-ordinating groups [see
Local Networks paragraph further in this article]. Lists are maintained and updated for the Department of Transport which approves the list of sites each year. Registered sites have formal approval for Highway Authorities to place warning signs at migration sites.


Organising a patrol
Toad patrols are organised groups that move toads from one side of a busy road to the other. This is done by collecting toads as they approach the road, and moving them manually, to the other side of the road, in the direction they were heading. This sounds simple, but it is quite a job to get enough people in the right place at the right time to maximise efficiency. Organisers can use the form provided with this leaflet to 'book in' help throughout the month or so when amphibians tend to move in largest numbers.

Usually migrations are active on and off for a few days at a time; whether or not volunteers will be needed cannot easily be predicted until a day's weather pattern (particularly rainfall and temperature) are known. This requires one person to monitor each site carefully and to alert others when help is needed. Toads tend to move during or after rainy weather when temperatures exceed 50C. Getting these factors sorted out is the key to good organisation and your volunteers will need to be as flexible as possible. Rescues can extend from dusk (about 5 pm) to midnight. Vehicle activity varies but tends to peak early on and again after pubs close (!). Patrol organising can be both challenging and gruelling, yet as a once a year effort, it is a very rewarding pursuit.



Site registration & signing
Froglife act for the Department of Transport to collect information about toad crossings, and to help assess the suitability of sites for toad road signs and tunnels. You can write to Froglife asking for a form which you will be required to complete and return. If your site is suitable for toad signs it will be registered with the DTP and your Highway Authority will be informed. Once a toad crossing has been registered, you should contact your local Highway Authority. They will arrange to visit your site with you to agree on the most appropriate positions to erect signs. Your local knowledge of amphibian populations in the area is very useful in making these decisions. County Highway Authorities should be able to supply amphibian crossing warning signs. Signs used must conform to the authorised DTP sign (No. WBM(R) 551.1). Highway Authorities are usually prepared to put up signs, and take them down at the end of the toad migration, or in rare instances they may expect you to do this yourself. You should discuss this with them, and make sure you know who is doing what. Signs should be put up as soon as toad migrations start; this may be as early as January in the south of England, but is more usually around the beginning of March.

 
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