Can Britain's Toads Survive from Traffic and Population Collapse?

It's a Friday night at half past seven, but instead of heading to the pub or relaxing at home, I've taken a train to a town in Wiltshire to meet up with volunteers from a amphibian rescue group. These committed people give up their nights to protect the native amphibian community.

A Worrying Drop in Population

The Bufo bufo is becoming increasingly uncommon. A latest research led by an amphibian and reptile charity showed that the British common toad numbers have dropped by half since 1985. Seeing a species that has been a fixture of the British countryside in decrease is described as "concerning" by researchers. Toads "don't need very specific conditions" and "ought to live quite well in the majority of habitats in Britain," meaning if even they are struggling to persist, "it kind of suggests that the ecosystem is unbalanced."

Since 1985, Britain's toad numbers have nearly been cut in half

The Threat from Traffic

Though the research didn't cover the reasons for the drop, cars is a major factor. Estimates suggest that 20 tons of toads are crushed on British roads annually – in other words, several hundred thousand. Unlike frogs, which might be content to mate "if you left out a small container," toads prefer large ponds. Their capacity to stay out of water for more time than frogs allows they can travel further to reach them – often long distances. They tend to stick to their ancestral migration routes – it's typical for mature amphibians to return to their natal pond to mate.

Breeding Habits

Appropriately enough, the initial amphibians begin their quest for a partner around February 14th, but some move as far as April, until it gets night and moving through the night. During that period, toads begin migrating from where they have been overwintering "almost simultaneously."

A local helper, who grew up in the region and has been trying to protect its toad population since he was a child, notes that "Their sole purpose: to go and mate." If their route crosses a street, they could all get run over, and that mating period would be lost – preventing a next generation of toads from being born.

Rescue Groups Across the United Kingdom

Finding hundreds of dead toads on nearby streets "inherently strikes a chord with people," and has resulted in the formation of toad patrols across the UK – 274 groups are officially listed with a national initiative. These groups pick up toads and carry them over streets in containers, as well as recording the number of toads they find and advocating for other safety solutions, such as road closures and underground wildlife tunnels.

Volunteers tend to operate during the breeding period, when toad crossings are more regular. However, this means they can miss groups of toadlets, which, having existed as spawn and then tadpoles, exit their water habitats over an unpredictable schedule in late summer. Because of their size – just a couple of cm wide – "they can get obliterated by vehicles." And as being run over "essentially crushes them," it's more difficult to collect information on them. At least when adult toads are killed, their remains can be counted.

Annual Efforts

In contrast to many groups, one local team, who are in their eighth season of functioning, go out throughout the year – not every night, but when conditions are warm and wet, or if a member has posted about a amphibian spotting in their messaging app. When I request to accompany them on duty, they concede it is "not a toady night" – winter dormancy has begun and it's been a dry day – but a few of the helpers willingly accept to patrol their route with me and see what we can find. "If anyone can locate any toads tonight, those two will find one," says the patrol manager, indicating her teenage child and the experienced member. We've been out for 120 minutes without a single toad sighting, and now they have scaled a wire barrier to check under some wood.

Family Participation

The mother and son became part of the group a while back. The teenager loves all things wildlife and has an goal to become a environmentalist, so his parent started to search for activities they could do jointly to help local wildlife. Now she loves it as much as he does, the middle-aged small business owner explains – so when the group was seeking a fresh coordinator recently, she volunteered for the role.

The teenager, too, has played an important role in the group. A clip he made, urging the municipal authority to close a road through a protected area during breeding time, swung the decision the group's way. After a year of lobbying, the authority approved an "access-only" rule between evening and morning from February through to April. Most drivers respected and avoided the route.

Additional Species and Difficulties

A few cars go by when I'm out on duty and we discover some casualties as a result – no amphibians, but several crushed salamanders. We spot one live amphibian as well, and the youngster is particularly pleased to see a daddy longlegs, which moves in his palms. Yet despite the group's hardest attempts to let me see a toad, the native community has obviously gone dormant for the colder months. It seems that I wouldn't have had any more luck anywhere else in the nation – all the rescue teams I reach out to explain that it's near-impossible at this season.

They project rescuing nearly 10,000 grown amphibians during migration

One email I get from a different helper, who has generously made the effort to check for toads in a famous site, considered the biggest tracked toad group in the UK, reaches me with the subject line: "None found." However, in February and March, he informs me, the team expects to help around ten thousand mature amphibians across the road.

Impact and Challenges

What level of impact can these groups truly achieve? "The fact that people are performing this consistently on cold, damp and unpleasant late nights is remarkable," notes an expert. "This effort that very much deserves recognition." However, while rescue teams are able to slow the decline, they can't stop it completely – not least because traffic is just one danger.

Other Dangers

The climate crisis has resulted in extended spells of drought, which cause the wrong conditions for some of the creatures that toads consume, such as worms and slugs, while warmer ponds have caused an increase of toxic plants, which can be toxic to toads. Milder winters also cause toads to emerge from their dormancy more frequently, disrupting the resource preservation vital to their life cycle. Loss of environment – particularly the disappearance of big water bodies – is an additional threat.

Researchers are "often concerned about overemphasizing practical benefits on wildlife," but "There is a big value in just having these animals around." But toads do have an important role in the food chain, consuming pretty much any small creatures or tiny organisms they can fit in their mouths and in turn feeding a variety of birds and mammals, such as wildlife. Enhancing conditions for toads – such as building water habitats, protecting forests and installing toad tunnels – "benefits for a whole bunch of other species."

Cultural Significance

Another reason to work to preserve toads present is their "historical significance," adds an specialist. Myths and folklore around toads go back {centuries|hundred

Joseph Bennett
Joseph Bennett

A digital transformation strategist with over 12 years of experience in helping SMEs leverage technology for growth.