Can Britain's Toads Survive from Roads and Population Collapse?
It's Friday night at half past seven, but instead of going out or relaxing at home, I've caught a train to a market town in the countryside to join volunteers from a toad patrol. These committed people give up their evenings to protect the local toad population.
An Alarming Drop in Population
The Bufo bufo is becoming increasingly rare. A recent research conducted by an wildlife conservation group showed that the UK toad population have dropped by half since the mid-1980s. Observing a species that has been a stalwart of the British countryside in decline is described as "worrying" by researchers. Toads "don't require very specific conditions" and "should be able to live successfully in the majority of habitats in Britain," meaning if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."
Since 1985, Britain's toad numbers have nearly been cut in half
The Danger from Roads
Though the research didn't examine the reasons for the drop, cars is a major factor. Calculations indicate that 20 tons of toads are crushed on UK roads annually – that is, several hundred thousand. Unlike frogs, which might be happy to mate "if you left out a bucket of water," toads favor big bodies of water. Their capacity to remain away from 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 go back to their birth pond to mate.
Breeding Habits
Appropriately enough, the initial amphibians start their journey for a partner around February 14th, but others travel as late as April, until it gets dark and travelling after sunset. During that period, toads begin migrating from where they have been overwintering "almost simultaneously."
A local helper, who was raised in the region and has been trying to protect its amphibians since he was a child, notes that "Their sole purpose: to go and mate." If their path happens to a road, they could be killed by traffic, and that mating period would never happen – preventing a new generation of toads from being born.
Toad Patrols Throughout the UK
Finding many of dead toads on nearby streets "inherently strikes a chord with people," and has resulted in the creation of rescue teams across the UK – 274 groups are currently registered with a national initiative. These groups pick up toads and transport them over streets in containers, as well as counting the number of toads they find and advocating for other safety solutions, such as road closures and amphibian passages.
Volunteers usually work during the migration season, when toad crossings are more regular. However, this implies they can miss groups of young toads, which, having existed as spawn and then juveniles, leave their ponds over an unpredictable schedule in the end of summer. Because of their size – just one or two centimetres wide – "they can get obliterated by car traffic." And as being run over "essentially crushes them," it's more difficult to get data on them. At least when adult toads are killed, their carcasses can be counted.
Year-Round Efforts
In contrast to many groups, a specific volunteer group, who are in their eighth year of operating, go out year-round – not nightly, but whenever conditions are warm and wet, or if someone has posted about a toad sighting in their group chat. When I ask to join them on patrol, they admit it is "not ideal conditions" – winter dormancy has begun and it's been a arid period – but a few of the helpers willingly accept to patrol their route with me and see what we can find. "If anyone can locate any toads tonight, that pair will find one," says the patrol manager, pointing to her 14-year-old son and the experienced member. We've been out for 120 minutes without a single toad sighting, and now they have climbed over a barbed wire fence to check under some logs.
Community Involvement
The mother and son became part of the patrol a while back. The youngster adores all things nature-related and has an goal to become a environmentalist, so his parent started to look for activities they could do jointly to protect native animals. Now she enjoys it as much as he does, the 41-year-old small business owner explains – so when the team was seeking a fresh coordinator recently, she decided to step up.
The youth, too, has been instrumental in the organization. A clip he created, urging the municipal authority to close a street through a nature reserve during breeding time, influenced the outcome the team's way. After a twelve months of campaigning, the council approved an "access-only" restriction between evening and morning from February through to spring. The majority of motorists respected and avoided the road.
Other Wildlife and Difficulties
A few cars go by when I'm out on duty and we find some victims as a result – no toads, but three squashed newts. We spot one living newt as well, and the teenager is especially excited to see a daddy longlegs, which moves in his palms. Yet despite the group's best efforts to let me see a toad, the local population has clearly settled down for the winter. It seems that I wouldn't have had any better success elsewhere in the nation – all the rescue teams 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
A message I get from another volunteer, who has kindly made the effort to check for toads in a famous site, thought to be the largest accurately monitored toad group in the UK, reaches me with the subject line: "No toads." However, in February and March, he informs me, the group plans to assist approximately 10,000 mature amphibians over the street.
Impact and Limitations
How much of a difference can these organizations actually make? "The fact that people are performing this consistently on chilly, wet and miserable evenings is remarkable," notes an expert. "This effort that very much should be celebrated." However, while rescue teams are able to reduce the drop, they can't stop it completely – not least because vehicles is not the only threat.
Other Dangers
The climate crisis has meant extended spells of dry weather, which cause the poor environment for some of the creatures that toads consume, such as worms and slugs, while warmer ponds have caused an increase of blue-green algae, which can be toxic to toads. Milder winters also cause toads to wake up from their dormancy more frequently, disrupting the energy conservation vital to their life cycle. Habitat destruction – especially the disappearance of big water bodies – is another menace.
Researchers are "often concerned about putting too much of a utilitarian spin on wildlife," however "It's important in just having these animals around." But toads play an important role in the food chain, eating almost any invertebrates or small animals they can swallow and in turn feeding a number of predators, such as wildlife. Enhancing conditions for toads – such as building water habitats, conserving woodland and constructing toad tunnels – "benefits for a whole bunch of other species."
Cultural Significance
Another reason to work to preserve toads around is their "historical significance," notes an expert. Myths and folklore around toads date back {centuries|hundred