Can the UK's Common Toads Survive from Traffic and Terrible Decline?

It is a Friday evening at 7:30, but rather than heading to the pub or watching a film, I've caught a train to a market town in the countryside to join local helpers from a toad patrol. These committed people sacrifice their evenings to protect the native amphibian community.

An Alarming Decline in Population

The common toad is becoming increasingly uncommon. A latest research led by an amphibian and reptile charity showed that the UK toad population have almost halved since 1985. Observing a species that has been a stalwart of the British countryside in decrease is labeled "concerning" by experts. Toads "don't need very specific conditions" and "ought to live quite well in most of areas in the UK," 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 Roads

Though the research didn't cover the reasons for the drop, cars certainly plays a part. Calculations suggest that 20 tonnes of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "with just a small container," toads favor large ponds. Their capacity to stay out of water for longer than frogs means they can journey farther to find them – sometimes long distances. They tend to stick to their ancestral migration routes – it's typical for mature amphibians to return to their birth pond to mate.

Migration Patterns

Fittingly, the initial amphibians begin their quest for a partner around February 14th, but some move as late as spring, waiting until it gets dark and moving after sunset. During that period, toads begin migrating from where they have been overwintering "almost simultaneously."

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 have an orgy." If their path happens to a street, they could be killed by traffic, and that mating period would never happen – stopping a next generation of toads from being produced.

Toad Patrols Across the UK

Seeing many of dead toads on local roads "resonates deeply with people," and has led to the formation of toad patrols across the UK – 274 groups are officially listed with a countrywide program. These teams collect toads and carry them across roads in buckets, as well as recording the quantity of toads they encounter and lobbying for other safety solutions, such as blocked roads and amphibian passages.

Patrols usually work during the breeding period, when amphibian movements are frequent. However, this implies they can overlook numbers of toadlets, which, having existed as eggs 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 car traffic." And as being run over "basically turns them into mush," it's harder to get data on them. At least when adult toads are lost, their remains can be counted.

Year-Round Work

In contrast to many groups, one local team, who are in their eighth year of functioning, go out year-round – not nightly, but whenever conditions are damp, or if someone has reported about a toad sighting in their messaging app. When I ask to join them on duty, they concede it is "not a toady night" – toad hibernation season has started and it's been a arid period – but several of the volunteers gamely agree to walk up and down 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, pointing to her 14-year-old son and the longtime volunteer. After for two hours without a glimpse of any amphibians, and now they have scaled a barbed wire fence to inspect beneath some wood.

Family Involvement

The mother and son joined the patrol a year and a half ago. The teenager adores all things wildlife and has an goal to become a conservationist, so his mother started to search for things they could do jointly to help native animals. Now she loves it as much as he does, the 41-year-old entrepreneur tells me – so when the group was looking for a new manager lately, she volunteered for the role.

The teenager, too, has been instrumental in the group. A video he made, imploring the municipal authority to close 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 "restricted access" restriction between evening and morning from late winter through to April. The majority of motorists respected and avoided the route.

Additional Species and Challenges

A few vehicles go by when I'm out on patrol and we find some victims as a consequence – no amphibians, but several crushed salamanders. We see one living newt as well, and the teenager is especially excited to see a harvestman, which moves in his palms. Yet in spite of the team's hardest attempts to let me see a toad, the local population has clearly gone dormant for the winter. It appears that I wouldn't have had any better success anywhere else in the country – all the rescue teams I reach out to explain that it's very difficult at this time of year.

This team anticipates assisting around ten thousand mature toads over the street

One email I receive from a different helper, who has generously taken the trouble to check for toads in a noted location, considered the largest accurately monitored toad population in the UK, reaches me with the subject line: "None found." However, in late winter, he tells me, the group expects to help approximately 10,000 adult toads across the road.

Effectiveness and Challenges

What level of impact can these organizations actually make? "The reality that volunteers are performing this consistently on chilly, wet and miserable late nights is remarkable," 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 traffic is not the only threat.

Additional Threats

The global warming has resulted in extended spells of dry weather, which create the poor environment for some of the creatures that toads consume, such as invertebrates, while higher water temperatures have led to an increase of toxic plants, which can be harmful to toads. Warmer cold seasons also cause toads to emerge from their hibernation more frequently, interfering with the energy conservation crucial to their existence. Loss of environment – particularly the loss of big water bodies – is an additional threat.

Researchers are "always a bit worried about overemphasizing practical benefits on biodiversity," however "It's important in just having these animals around." But toads do have an significant part in the food chain, eating almost any invertebrates or tiny organisms they can fit in their mouths and in turn feeding a number of predators, such as hedgehogs and otters. Enhancing situations for toads – ie building water habitats, protecting forests and constructing amphibian passages – "we'll improve them for a whole bunch of additional wildlife."

Cultural Importance

An additional motive to try to keep toads around is their "historical significance," notes an specialist. Myths and folklore around toads date back {centuries|hundred

Kellie Johnson
Kellie Johnson

Elara Vance is a data engineer with over 8 years of experience in building scalable data pipelines and analytics platforms, passionate about sharing knowledge in the tech community.