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

It is a Friday night at 7:30, but rather than going out or relaxing at home, I've caught a train to a town in Wiltshire to join local helpers from a amphibian rescue group. These committed people give up their evenings to safeguard the local toad population.

An Alarming Decline in Numbers

The Bufo bufo is becoming increasingly rare. A latest research conducted by an amphibian and reptile charity showed that the British common toad numbers have dropped by half since the mid-1980s. Seeing a creature that has been a stalwart of the UK landscape in decrease is labeled "concerning" by researchers. Toads "don't need very particular environments" and "ought to live quite well in the majority of habitats in the UK," so if even they are struggling to persist, "it kind of suggests that things are not as they should be."

The UK toad population has almost halved since 1985

The Threat from Traffic

Though the research didn't examine the reasons for the decline, traffic certainly plays a part. Estimates indicate that 20 tonnes of toads are killed on UK roads every year – in other words, several hundred thousand. Unlike frogs, which might be happy to mate "with just a bucket of water," toads prefer big bodies of water. Their ability to stay out of water for more time than frogs allows they can journey farther to reach them – sometimes long distances. They tend to stick to their ancestral migration routes – it's common for adult toads to return to their birth pond to mate.

Breeding Habits

Appropriately enough, the initial amphibians start their journey for a partner around Valentine's day, but others travel as far as spring, 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 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 route crosses a street, they could be killed by traffic, and that breeding season would be lost – preventing a next generation of toads from being produced.

Rescue Groups Throughout the United Kingdom

Seeing hundreds of dead toads on local roads "resonates deeply with people," and has led to the creation 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 counting the number of toads they find and lobbying for other safety solutions, such as blocked roads and underground wildlife tunnels.

Patrols usually work during the migration season, when toad crossings are frequent. However, this implies they can miss groups of young toads, which, having existed as spawn and then tadpoles, exit their water habitats over an unpredictable schedule in late 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 killed, their carcasses can be counted.

Annual Efforts

In contrast to many groups, a specific volunteer group, who are in their eighth year of functioning, go out throughout the year – not nightly, but whenever weather are warm and wet, or if a member has posted about a toad sighting in their group chat. When I request to accompany them on patrol, they concede it is "not a toady night" – winter dormancy has begun and it's been a dry day – but several of the helpers willingly accept to walk up and down their route with me and search for any toads. "Should anyone can locate any toads tonight, those two will spot one," says the group coordinator, pointing to her teenage child and the experienced member. After for two hours without a single toad sighting, and now they have scaled a barbed wire fence to inspect beneath some logs.

Community Participation

The family duo joined the group a while back. The teenager loves all things nature-related and has an goal to become a conservationist, so his mother started to search for things they could do jointly to help local wildlife. Now she enjoys it as much as he does, the middle-aged entrepreneur tells me – so when the group was looking for a new manager recently, she decided to step up.

The youth, too, has been instrumental in the organization. A video he created, imploring the local council to close a street through a nature reserve during migration season, influenced the outcome the group's way. After a year of campaigning, the authority approved an "access-only" rule between evening and morning from February through to April. The majority of motorists duly avoided the route.

Other Wildlife and Challenges

A few vehicles go by when I'm out on patrol and we discover some victims as a consequence – no amphibians, but three squashed newts. We spot one living newt 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 hardest attempts to show me a toad, the native community has clearly gone dormant for the winter. It seems that I wouldn't have had any more luck elsewhere in the country – all the patrol groups I reach out to explain that it's very difficult at this season.

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

A message I get from a different helper, who has kindly taken the trouble to look for toads in a noted location, thought to be the biggest tracked toad population in the UK, arrives in my inbox with the title: "None found." However, in February and March, he tells me, the team plans to assist approximately 10,000 adult toads across the road.

Effectiveness and Limitations

What level of impact can these groups actually make? "The fact that people are performing this consistently on chilly, wet and miserable evenings is remarkable," notes an expert. "That's something that very much should be celebrated." However, while rescue teams are able to slow the decline, they can't stop it completely – partly since traffic is just one danger.

Additional Threats

The climate crisis has meant longer periods of dry weather, which create the poor environment for some of the creatures that toads consume, such as invertebrates, while warmer ponds have caused an rise of toxic plants, which can be toxic to toads. Milder winters also lead toads to wake up from their dormancy more often, interfering with the resource preservation vital to their life cycle. Habitat destruction – especially the disappearance of big water bodies – is an additional threat.

Experts are "always a bit worried about putting too much of a utilitarian spin on biodiversity," but "It's important in just their presence." But toads do have an important role in the ecosystem, consuming almost any invertebrates or tiny organisms they can fit in their mouths and in turn feeding a number of birds and mammals, such as wildlife. Enhancing conditions for toads – such as creating more ponds, conserving woodland and constructing toad tunnels – "benefits for a wide range of additional wildlife."

Cultural Importance

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

Tyler Weiss
Tyler Weiss

A seasoned journalist with over 15 years of experience covering European politics and international relations, based in Berlin.

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