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

It's Friday night at half past seven, but instead of going out or watching a film, I've caught a train to a town in Wiltshire to meet up with local helpers from a toad patrol. These committed people give up their nights to safeguard the native amphibian community.

A Worrying Drop in Population

The Bufo bufo is growing more uncommon. A recent study led by an amphibian and reptile charity revealed that the UK toad population have almost halved since 1985. Seeing a species that has been a stalwart of the UK landscape in decline is described as "worrying" by researchers. Toads "don't require very particular environments" and "ought to live quite well in most of habitats in Britain," so if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

Toad populations across the UK have declined by almost 50% since the 1980s

The Threat from Roads

Though the research didn't examine the causes for the decline, traffic is a major factor. Estimates suggest that 20 tons of toads are crushed on British roads every year – that is, several hundred thousand. Unlike frogs, which would probably be content to mate "if you left out a bucket of water," toads prefer big bodies of water. Their capacity to remain away from water for more time than frogs allows they can journey farther to reach them – often long distances. They usually follow their traditional paths – it's common for mature amphibians to go back to their natal pond to mate.

Migration Patterns

Fittingly, the first toads begin their quest for a partner around Valentine's day, but others travel as late as spring, waiting until it gets night and travelling after sunset. During that period, toads start moving from where they have been hibernating "all pretty much at the same time."

One volunteer, who grew up in the area and has been trying to protect its amphibians since he was a boy, notes that "They've got just one focus: to go and mate." If their route 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 produced.

Toad Patrols Throughout the United Kingdom

Seeing many of toad carcasses on nearby streets "resonates deeply with people," and has led to the creation of rescue teams throughout the UK – hundreds of organizations are officially listed with a countrywide program. These teams collect toads and transport them across roads in containers, as well as recording the number of toads they encounter and advocating for other protection measures, such as blocked roads and underground wildlife tunnels.

Patrols usually work during the migration season, when amphibian movements are frequent. However, this means they can overlook groups of toadlets, which, having been spawn and then juveniles, exit their ponds 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 vehicles." And as being hit "basically turns them into mush," it's more difficult to collect information on them. At least when mature amphibians are lost, their remains can be tallied.

Year-Round Efforts

In contrast to many groups, a specific volunteer group, who are in their eighth season of functioning, go out throughout the year – not every night, but when weather are warm and wet, or if a member has posted about a toad sighting in their messaging app. When I ask to join them on patrol, they admit it is "not a toady night" – winter dormancy has started and it's been a arid period – but a few of the volunteers gamely agree to patrol their route with me and search for any toads. "Should anyone can find any toads tonight, that pair will spot one," says the group coordinator, pointing to her teenage child and the experienced member. After for 120 minutes without a single toad sighting, and now they have scaled a wire barrier to check under some logs.

Family 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 ambition to become a environmentalist, so his mother started to look for activities they could do together to help local wildlife. Now she loves it as much as he does, the 41-year-old small business owner explains – so when the group was looking for a new manager recently, she volunteered for the role.

The teenager, too, has been instrumental in the organization. A video he created, imploring the local council to block a street through a protected area during migration season, swung the decision the team's way. After a year of campaigning, the authority agreed to an "access-only" rule between 5pm and 5am from February through to spring. Most drivers duly avoided the route.

Additional Species and Challenges

Several cars go past 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 particularly pleased to see a daddy longlegs, which moves in his palms. Yet despite the team's best efforts to let me see a toad, the native community has obviously gone dormant for the winter. It seems that I wouldn't have had any better success anywhere else in the country – all the rescue teams I contact clarify 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 kindly made the effort to look for toads in a noted location, thought to be the largest accurately monitored toad group in the UK, arrives in my inbox with the subject line: "None found." However, in February and March, he tells me, the team expects to help around 10,000 mature amphibians across the road.

Impact and Limitations

How much of a difference can these organizations truly achieve? "The fact that people are performing this consistently on chilly, wet and miserable late nights is quite extraordinary," says an researcher. "That's something that very much should be celebrated." However, while rescue teams are able to reduce the drop, they can't stop it completely – partly since traffic is not the only threat.

Additional Threats

The climate crisis has meant longer periods of dry weather, which create the poor environment for some of the creatures that toads eat, such as worms and slugs, while warmer ponds have led to an rise of blue-green algae, which can be toxic to toads. Milder winters also lead toads to wake up from their hibernation more often, interfering with the energy conservation crucial to their existence. Loss of environment – especially the disappearance of big water bodies – is another menace.

Experts are "often concerned about overemphasizing practical benefits on wildlife," however "It's important in just their presence." But toads do have an significant part in the ecosystem, consuming almost any invertebrates or tiny organisms they can swallow and in turn feeding a number of predators, such as hedgehogs and otters. Enhancing conditions for toads – such as creating more ponds, protecting forests and installing 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," notes an expert. Legends and tales around toads date back {centuries|hundred

Leslie Norris
Leslie Norris

Lena Schmidt is a senior industrial engineer with over 15 years of experience in automation and process optimization, specializing in sustainable manufacturing practices.