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

It's Friday night at 7:30, but rather than heading to the pub or watching a film, I've caught a train to a town in the countryside to meet up with local helpers from a toad patrol. These committed people sacrifice their nights to safeguard the native amphibian community.

A Worrying Drop in Numbers

The common toad is becoming increasingly rare. A latest research led by an amphibian and reptile charity revealed that the British common toad numbers have dropped by half since 1985. Seeing a creature that has been a stalwart of the British countryside in decrease is labeled "concerning" by researchers. Toads "don't require very particular environments" and "should be able to live successfully in the majority of habitats in the UK," meaning if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."

The UK toad population has almost halved since 1985

The Threat from Traffic

Though the study didn't examine the causes for the decline, traffic is a major factor. Calculations indicate that 20 tons of toads are crushed on UK roads every year – that is, several hundred thousand. Unlike frogs, which might be content to mate "if you left out a bucket of water," toads favor big bodies of water. Their ability to remain away from water for more time than frogs means they can journey farther to find them – sometimes hundreds of metres. They tend to stick to their ancestral migration routes – it's common for mature amphibians to go back to their natal pond to mate.

Migration Habits

Fittingly, the initial amphibians start their journey for a partner around Valentine's day, but some move as late as spring, waiting until it gets dark and travelling through the night. During that time, toads start moving from where they have been hibernating "all pretty much at the same time."

A local helper, who grew up in the region and has been working to save its toad population since he was a child, explains that "Their sole purpose: to go and mate." If their path happens to a street, they could be killed by traffic, and that mating period would never happen – preventing a new generation of toads from being produced.

Rescue Groups Across the United Kingdom

Seeing many of dead toads on local roads "inherently strikes a chord with people," and has led to the formation of toad patrols throughout the UK – 274 groups are currently registered with a countrywide program. These teams collect toads and carry them across roads in buckets, as well as recording the number of toads they find and advocating for other protection measures, such as road closures and underground wildlife tunnels.

Patrols usually work during the breeding period, when toad crossings are frequent. However, this means they can overlook groups of young toads, which, having been spawn and then juveniles, leave their ponds over an unpredictable schedule in the end of 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 harder to get data on them. At least when adult toads are lost, their remains can be counted.

Year-Round Work

Unlike most patrols, one local team, who are in their eighth year of functioning, go out year-round – not every night, but whenever weather are warm and wet, or if a member has posted about a toad sighting in their messaging app. When I request to accompany them on duty, they concede it is "not a toady night" – winter dormancy has started and it's been a dry day – but several of the volunteers willingly accept to patrol their route with me and see what we can find. "If anyone can find any toads tonight, that pair will spot one," says the patrol manager, indicating her teenage child and the longtime volunteer. 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 Involvement

The mother and son became part of the patrol a while back. The teenager loves all things nature-related and has an goal to become a conservationist, so his parent started to search for activities they could do together to help local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur explains – so when the team was looking for a new manager recently, she volunteered for the role.

The youth, too, has been instrumental in the organization. A video he made, imploring the local council to block a street through a protected area during breeding time, influenced the outcome the group's way. After a twelve months of campaigning, the authority approved an "access-only" restriction between evening and morning from February through to April. The majority of motorists duly avoided the route.

Additional Species and Challenges

A few cars go by when I'm out on patrol and we discover some victims as a consequence – no toads, but several crushed salamanders. We see one living newt as well, and the youngster is particularly pleased to see a harvestman, which dances in his palms. Yet despite the group'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 more luck anywhere else in the country – all the patrol groups I contact clarify that it's very difficult at this time of year.

They project rescuing nearly 10,000 grown amphibians during migration

A message I receive from another volunteer, who has generously made the effort to check for toads in a noted location, considered the largest accurately monitored toad population in the UK, reaches me with the subject line: "No toads." However, in February and March, he informs me, the group expects to help around ten thousand adult toads over the street.

Impact and Challenges

What level of impact can these organizations actually make? "The reality that volunteers are doing this regularly on chilly, wet and miserable late nights is quite extraordinary," says an researcher. "This effort that very much deserves recognition." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely – not least because vehicles is not the only threat.

Other Dangers

The climate crisis has meant longer periods of dry weather, which cause the wrong conditions for some of the creatures that toads eat, such as invertebrates, while warmer ponds have caused an increase of toxic plants, which can be toxic to toads. Warmer cold seasons also lead toads to emerge from their hibernation more often, disrupting the energy conservation crucial to their life cycle. Loss of environment – especially the loss of large ponds – is an additional threat.

Experts are "often concerned about putting too much of a utilitarian spin on biodiversity," but "There is a big value in just having these animals around." But toads play an significant part in the food chain, eating pretty much any invertebrates or small animals they can fit in their mouths and in turn sustaining a number of predators, such as wildlife. Enhancing situations for toads – ie building water habitats, protecting forests and installing toad tunnels – "benefits for a whole bunch of other species."

Cultural Significance

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

Denise Levine
Denise Levine

Cybersecurity expert and tech writer specializing in data protection and cloud storage innovations.