Can Britain's Common Toads Be Saved from Traffic and Population Collapse?

It's a Friday evening at half past seven, but instead of going out or watching a film, I've taken a train to a town in the countryside to meet up with local helpers from a toad patrol. These dedicated individuals sacrifice their nights to protect the local toad population.

An Alarming Decline in Population

The Bufo bufo is becoming increasingly uncommon. A latest study led by an wildlife conservation group showed that the British common toad numbers have almost halved since the mid-1980s. Observing a creature that has been a stalwart of the British countryside in decline is labeled "worrying" by experts. Toads "don't require very specific conditions" and "should be able to live successfully in most of habitats in Britain," so if even they are not managing to survive, "it kind of suggests that things are not as they should be."

The UK toad population has almost halved since 1985

The Danger from Traffic

Though the research didn't examine the reasons for the drop, traffic is a major factor. Calculations suggest that 20 tons of toads are killed on UK roads annually – that is, several hundred thousand. In contrast to frogs, which would probably be content to mate "if you left out a small container," toads prefer big bodies of water. Their capacity to remain away from water for longer than frogs means they can travel further to reach them – sometimes long distances. They tend to stick to their traditional paths – it's typical for mature amphibians to go back to their natal pond to mate.

Breeding Patterns

Fittingly, the first toads begin their quest for a mate around Valentine's day, but some move as far as April, until it gets dark and travelling after sunset. During that time, toads start moving from wherever they have been overwintering "all pretty much at the same time."

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

Toad Patrols Throughout the United Kingdom

Seeing many of dead toads on nearby streets "inherently strikes a chord with people," and has resulted in the creation of rescue teams across the UK – 274 groups are officially listed with a national initiative. These groups collect toads and carry them across roads in containers, as well as counting the quantity of toads they encounter and advocating for other safety solutions, such as road closures and amphibian passages.

Patrols usually work during the migration season, when amphibian movements are more regular. However, this means they can overlook groups of young toads, which, having existed as eggs and then tadpoles, exit their water habitats over an irregular timetable in the end of summer. Because of their small stature – just one or two centimetres wide – "they can get obliterated by car traffic." And as being hit "basically turns them into mush," it's harder to get data on them. At least when adult toads are lost, their carcasses can be tallied.

Year-Round Work

In contrast to many groups, a specific volunteer group, who are in their eighth season of operating, go out throughout the year – not every night, but whenever weather are damp, or if a member has posted about a toad sighting in their group chat. When I request to accompany them on patrol, they admit it is "not a toady night" – winter dormancy has begun and it's been a dry day – but several of the helpers gamely agree to patrol their area with me and search for any toads. "Should anyone can find any toads tonight, that pair will find one," says the patrol manager, indicating her teenage child and the longtime volunteer. We've been out for two hours without a glimpse of any amphibians, and now they have climbed over a wire barrier to inspect beneath some wood.

Family Participation

The family duo joined the patrol a year and a half ago. The teenager adores all things wildlife and has an goal to become a environmentalist, so his mother started to look 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 tells me – so when the group was seeking a new manager lately, she volunteered for the role.

The youth, too, has played an important role in the group. A clip he created, imploring the municipal authority to block a street through a nature reserve during breeding time, swung the decision the team's way. After a year of lobbying, the council approved an "access-only" restriction between evening and morning from late winter through to April. The majority of motorists respected and avoided the road.

Other Wildlife and Difficulties

A few vehicles go by when I'm out on duty and we discover some victims as a consequence – no toads, but several crushed salamanders. We see one live amphibian as well, and the teenager is particularly pleased to see a harvestman, which dances in his palms. Yet despite the team's hardest attempts to show me a toad, the native community has obviously gone dormant for the winter. It appears that I wouldn't have had any better success elsewhere in the country – all the patrol groups I contact clarify that it's near-impossible at this time of year.

They project rescuing nearly 10,000 grown amphibians during migration

A message I receive from a different helper, who has generously made the effort to look for toads in a famous site, thought to be the biggest tracked toad group in the UK, reaches me with the title: "No toads." However, in late winter, he tells me, the team plans to assist around ten thousand mature amphibians over the street.

Impact and Limitations

How much of a difference can these groups actually make? "The fact that people are performing this regularly on chilly, wet and miserable evenings is remarkable," notes an researcher. "This effort that very much should be celebrated." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since traffic is just one danger.

Other Dangers

The climate crisis has resulted in longer periods of drought, which create the wrong conditions for some of the creatures that toads eat, such as worms and slugs, while higher water temperatures have led to an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to wake up from their dormancy more frequently, interfering with the resource preservation vital to their life cycle. Habitat destruction – particularly the disappearance of large ponds – is an additional threat.

Researchers are "often concerned about putting too much of a utilitarian spin on wildlife," however "There is a big value in just having these animals around." But toads play an important role in the ecosystem, consuming pretty much any invertebrates or small animals they can swallow and in turn sustaining a number of birds and mammals, such as hedgehogs and otters. Enhancing situations for toads – such as building water habitats, protecting forests and constructing amphibian passages – "benefits for a whole bunch of other species."

Historical Importance

Another reason to try to keep toads present is their "important cultural value," adds an specialist. Legends and tales around toads date back {centuries|hundred

Tammy Harding
Tammy Harding

Elara Vance is a tech journalist and software developer with over a decade of experience covering emerging technologies and digital innovations.