Will the UK's Toads Be Saved from Roads and Population Collapse?

It is a Friday night at half past seven, but rather than heading to the pub or relaxing at home, I've caught a train to a town in Wiltshire to meet up with local helpers from a toad patrol. These dedicated individuals give up their evenings to protect the native amphibian community.

A Worrying Decline in Population

The common toad is growing more uncommon. A recent study conducted by an amphibian and reptile charity revealed that the UK toad population have almost halved since the mid-1980s. Observing a species that has been a stalwart of the UK landscape in decline is labeled "concerning" by experts. Toads "don't require very specific conditions" and "ought to live successfully in the majority of habitats in Britain," so if even they are struggling to persist, "it indicates that things are not as they should be."

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

The Threat from Roads

Though the research didn't examine the reasons for the drop, cars certainly plays a part. Estimates indicate that 20 tons of toads are crushed on UK roads every year – that is, several hundred thousand. In contrast to frogs, which would probably be content to mate "if you left out a small container," toads favor big bodies of water. Their ability to stay out of water for longer than frogs allows they can journey farther to find them – often long distances. They usually follow their traditional paths – it's common for adult toads to return to their natal pond to mate.

Migration Patterns

Appropriately enough, the initial amphibians start their journey for a mate around February 14th, but others travel as far as spring, until it gets night and moving through the night. During that time, toads start moving from wherever they have been overwintering "almost simultaneously."

A local helper, who grew up in the area and has been trying to protect its toad population since he was a child, notes that "They've got just one focus: to go and mate." If their path happens to a street, they could all get run over, and that mating period would never happen – stopping a new generation of toads from being born.

Toad Patrols Across the UK

Seeing many of toad carcasses on nearby streets "resonates deeply with people," and has led to the creation of toad patrols across the UK – 274 groups are officially listed with a countrywide program. These groups collect toads and carry them over streets in buckets, as well as recording the quantity of toads they encounter and advocating for other protection measures, such as road closures and amphibian passages.

Volunteers tend to operate during the migration season, when toad crossings are frequent. However, this means they can miss numbers of young toads, which, having been eggs and then tadpoles, exit their ponds over an irregular timetable in late summer. Because of their small stature – just one or two centimetres wide – "they are destroyed by vehicles." And as being hit "essentially crushes them," it's harder to get data on them. At least when adult toads are killed, their remains can be tallied.

Year-Round Efforts

In contrast to most patrols, a specific volunteer group, who are in their eighth year of operating, go out throughout the year – not nightly, but whenever weather are warm and wet, or if someone has posted about a amphibian spotting in their group chat. When I request to accompany them on patrol, they concede it is "not a toady night" – toad hibernation season has started and it's been a dry day – but several of the volunteers gamely agree to patrol their route with me and search for any toads. "If anyone can find any toads tonight, that pair will spot one," says the patrol manager, indicating her teenage child and the longtime volunteer. After for 120 minutes without a single toad sighting, and now they have climbed over a barbed wire fence to check under some logs.

Family Involvement

The mother and son became part of the group a year and a half ago. The teenager loves all things wildlife and has an ambition to become a conservationist, so his parent started to look for activities they could do jointly to help local wildlife. Now she loves it as much as he does, the 41-year-old entrepreneur tells me – so when the group was seeking a new manager lately, she decided to step up.

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

Additional Species and Difficulties

A few cars go by when I'm out on patrol and we find some victims as a consequence – no toads, but several crushed salamanders. We spot one live amphibian as well, and the teenager is particularly pleased to see a daddy longlegs, which moves in his palms. Yet in spite of the group's best efforts to show me a toad, the local population has obviously gone dormant for the colder months. It seems that I wouldn't have had any better success anywhere else in the country – all the rescue teams I contact explain that it's very difficult at this time of year.

The group expects to help approximately 10,000 adult toads across the road

One email I get from another volunteer, who has kindly taken the trouble to check for toads in a famous site, thought to be the largest accurately monitored toad population in the UK, reaches me with the title: "None found." However, in late winter, he informs me, the group expects to help approximately ten thousand mature amphibians across the road.

Impact and Limitations

What level of impact can these organizations truly achieve? "The fact that people are performing this regularly on chilly, wet and miserable late nights is quite extraordinary," notes an researcher. "This effort that very much should be celebrated." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely – not least because traffic is just one danger.

Additional Threats

The climate crisis has resulted in longer periods of dry weather, which cause the wrong conditions for some of the animals that toads consume, such as invertebrates, while warmer ponds have led to an rise of toxic plants, which can be harmful to toads. Warmer cold seasons also cause toads to wake up from their hibernation more often, interfering with the energy conservation vital to their life cycle. Habitat destruction – particularly the loss of big water bodies – is an additional threat.

Researchers are "always a bit worried about overemphasizing practical benefits on wildlife," however "It's important in just having these animals around." But toads play an important role in the ecosystem, consuming pretty much any small creatures or tiny organisms they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as wildlife. Improving situations for toads – ie building water habitats, conserving woodland and constructing toad tunnels – "we'll improve them for a wide range of additional wildlife."

Cultural Significance

An additional motive to work to preserve toads around is their "important cultural value," adds an specialist. Myths and folklore around toads go back {centuries|hundred

Trevor Boone
Trevor Boone

A tech journalist and software developer with over a decade of experience covering emerging technologies and digital transformation.