Will the UK's Common Toads Survive from Roads and Population Collapse?

It is Friday evening at half past seven, but instead of heading to the pub or relaxing at home, I've caught a train to a market town in the countryside to meet up with local helpers from a toad patrol. These dedicated individuals give up their evenings to safeguard the native amphibian community.

An Alarming Drop in Population

The common toad is becoming increasingly uncommon. A recent research conducted by an amphibian and reptile charity revealed that the UK toad population have almost halved since 1985. Observing a creature that has been a fixture of the UK landscape in decrease is labeled "concerning" by experts. Toads "don't need very specific conditions" and "should be able to live successfully in most of habitats in Britain," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

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

The Threat from Roads

Though the research didn't cover the reasons for the drop, cars is a major factor. Calculations suggest that 20 tonnes of toads are crushed on UK roads annually – in other words, hundreds of thousands. In contrast to frogs, which would probably be content to mate "with just a small container," toads favor large ponds. Their capacity to remain away from water for longer than frogs allows they can journey farther to reach them – often long distances. They tend to stick to their ancestral migration routes – it's common for mature amphibians to go back to their birth pond to mate.

Migration Patterns

Fittingly, the first toads start their journey for a partner around February 14th, but others travel as late as April, waiting until it gets dark and travelling through the night. During that time, toads begin migrating from where they have been hibernating "all pretty much at the same time."

One volunteer, who was raised in the area and has been working to save its toad population since he was a boy, notes that "Their sole purpose: to go and have an orgy." If their path crosses a road, they could all get run over, and that breeding season would never happen – preventing a new generation of toads from being produced.

Toad Patrols Throughout the United Kingdom

Seeing hundreds of toad carcasses on nearby streets "inherently strikes a chord with people," and has led to the creation of toad patrols throughout the UK – hundreds of organizations are officially listed with a national initiative. These groups pick up toads and carry them over streets in buckets, as well as counting the quantity of toads they find and advocating for other safety solutions, such as road closures and underground wildlife tunnels.

Volunteers usually work during the migration season, when toad crossings are frequent. However, this means they can overlook numbers of young toads, which, having been eggs and then tadpoles, leave their water habitats over an unpredictable schedule in the end of summer. Because of their size – just a couple of cm wide – "they can get obliterated by car traffic." 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 carcasses can be tallied.

Year-Round Work

In contrast to many groups, a specific volunteer group, who are in their eighth year of operating, go out year-round – not every night, but when weather are warm and wet, or if someone has posted about a toad sighting in their messaging app. When I ask to join them on patrol, they concede it is "not a toady night" – toad hibernation season has begun and it's been a arid period – but several of the helpers willingly accept to patrol their area with me and search for any toads. "Should anyone can locate any toads tonight, that pair will find one," says the patrol manager, pointing to her teenage child and the longtime volunteer. After for two hours without a single toad sighting, and now they have scaled a barbed wire fence to check under some logs.

Community Participation

The mother and son became part of the group a year and a half ago. The teenager adores all things nature-related and has an goal to become a environmentalist, so his mother started to search for activities they could do jointly to protect local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur explains – so when the group was looking for a fresh coordinator lately, she volunteered for the role.

The youth, too, has been instrumental in the organization. A video he made, urging the municipal authority to block a street through a protected area during breeding time, influenced the outcome the group's way. After a year of lobbying, the council approved an "access-only" rule between 5pm and 5am from late winter through to April. Most drivers respected and avoided the road.

Other Wildlife and Difficulties

Several cars go by when I'm out on duty and we find some casualties as a consequence – no amphibians, but three squashed newts. We spot one live amphibian as well, and the youngster is especially excited to see a harvestman, which moves in his palms. Yet despite the team's best efforts to let me see a toad, the native community has obviously settled down for the colder months. It seems that I wouldn't have had any more luck elsewhere in the nation – all the patrol groups I reach out to 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 a different helper, who has generously made the effort to look for toads in a famous site, considered the biggest tracked toad population in the UK, reaches me with the title: "No toads." However, in late winter, he informs me, the group plans to assist approximately 10,000 adult toads over the street.

Impact and Limitations

What level of impact can these groups actually make? "The fact that volunteers are performing this regularly on chilly, wet and miserable late nights is remarkable," says an expert. "That's something that very much deserves recognition." However, while toad patrols are able to slow the decline, they cannot prevent it entirely – partly since vehicles is just one danger.

Additional Threats

The global warming has resulted in longer periods of drought, which create 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 harmful to toads. Milder winters also cause toads to wake up from their hibernation more often, interfering with the resource preservation crucial to their life cycle. Loss of environment – particularly the loss of big water bodies – is an additional threat.

Experts are "often concerned about putting too much of a utilitarian spin on biodiversity," however "There is a big value in just having these animals around." But toads do have an important role in the ecosystem, eating pretty much any invertebrates or tiny organisms they can swallow and in turn sustaining a number of predators, such as hedgehogs and otters. Enhancing conditions for toads – ie building water habitats, protecting forests and constructing toad tunnels – "we'll improve them for a wide range of other species."

Historical Importance

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

Margaret Patton
Margaret Patton

A tech journalist and business strategist with over a decade of experience covering digital transformation and startup ecosystems.