Will the UK's Toads Survive from Roads and Terrible Decline?
It's Friday evening at 7:30, but rather than heading to the pub or watching a film, I've caught a train to a town in Wiltshire to meet up with volunteers from a amphibian rescue group. These committed people give up their nights to protect the native amphibian community.
An Alarming Decline in Population
The Bufo bufo is becoming increasingly rare. A recent study conducted by an amphibian and reptile charity revealed that the British common toad numbers have dropped by half since 1985. Seeing a species that has been a stalwart of the British countryside in decline is labeled "worrying" by researchers. Toads "don't require very particular environments" and "should be able to live quite well in most of habitats in Britain," meaning if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."
The UK toad population has almost halved since 1985
The Danger from Roads
Though the research didn't examine the reasons for the decline, cars certainly plays a part. Calculations indicate that 20 tonnes of toads are killed on UK roads annually – that is, several hundred thousand. In contrast to frogs, which might be content to mate "with just a small container," toads favor large ponds. Their ability to remain away from water for more time than frogs means they can travel further to reach them – often long distances. They tend to follow their ancestral migration routes – it's typical for adult toads to return to their birth pond to mate.
Migration Patterns
Appropriately enough, the first toads start their journey for a partner around February 14th, but others travel as late as April, waiting until it gets night and travelling after sunset. During that period, toads begin migrating from where they have been hibernating "almost simultaneously."
One volunteer, who was raised in the region and has been trying to protect its amphibians since he was a boy, notes that "Their sole purpose: to go and mate." If their route crosses a street, they could be killed by traffic, and that mating period would be lost – preventing a next generation of toads from being born.
Rescue Groups Across the United Kingdom
Seeing hundreds of dead toads on nearby streets "inherently strikes a chord with people," and has led to the creation of rescue teams throughout the UK – 274 groups are currently registered with a national initiative. These groups collect toads and carry them over streets in buckets, as well as counting the number of toads they find and lobbying for other protection measures, such as road closures and underground wildlife tunnels.
Volunteers tend to operate during the migration season, when toad crossings are frequent. However, this means they can miss numbers of young toads, which, having existed as eggs and then tadpoles, leave their ponds over an irregular timetable in late summer. Because of their small stature – just a couple of cm wide – "they can get obliterated by vehicles." And as being hit "basically turns them into mush," it's harder to get data on them. At least when adult toads are killed, their remains can be tallied.
Year-Round Work
In contrast to most patrols, one local team, who are in their eighth year of operating, go out throughout the year – not nightly, but when conditions are warm and wet, or if someone has posted about a amphibian spotting in their group chat. When I ask to join them on patrol, they concede 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 walk up and down their area with me and see what we can find. "If anyone can locate any toads tonight, those two will find one," says the patrol manager, pointing to her teenage child and the longtime volunteer. After for two hours without a glimpse of any amphibians, and now they have scaled a barbed wire fence to check under some wood.
Family Involvement
The mother and son became part of the patrol a while back. The youngster loves all things nature-related and has an goal to become a environmentalist, so his parent started to look for activities they could do together to help local wildlife. Now she enjoys it as much as he does, the 41-year-old small business owner tells me – so when the team was seeking a fresh coordinator lately, she volunteered for the role.
The teenager, too, has been instrumental in the group. A video he made, urging the municipal authority to block a street through a protected area during migration season, influenced the outcome the team's way. After a year of lobbying, the council agreed to an "restricted access" rule between 5pm and 5am from February through to spring. The majority of motorists respected and avoided the road.
Other Wildlife and Difficulties
A few vehicles go past when I'm out on duty and we discover some casualties as a consequence – no amphibians, but three squashed newts. We see one living newt as well, and the teenager is particularly pleased to see a daddy longlegs, which moves in his palms. Yet despite the team's best efforts to show me a toad, the local population has clearly gone dormant for the colder months. It seems that I couldn't have found any more luck elsewhere in the nation – all the patrol groups I contact clarify that it's near-impossible at this season.
They project rescuing nearly 10,000 grown amphibians during migration
A message I receive from another volunteer, who has kindly made the effort to check for toads in a noted location, considered the largest accurately monitored toad group in the UK, arrives in my inbox with the title: "No toads." However, in late winter, he tells me, the group plans to assist approximately ten thousand adult toads across the road.
Impact and Limitations
What level of impact can these groups truly achieve? "The fact that volunteers are performing this consistently on cold, damp and unpleasant late nights is quite extraordinary," notes an expert. "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 just one danger.
Additional Threats
The climate crisis has meant extended spells of dry weather, which create the wrong conditions for some of the animals that toads eat, such as worms and slugs, while higher water temperatures have caused an increase of toxic plants, which can be harmful to toads. Milder winters also lead toads to emerge from their hibernation more frequently, interfering with the energy conservation crucial to their existence. Loss of environment – especially the loss of large ponds – is an additional threat.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," but "There is a big value in just their presence." But toads play an important role in the food chain, eating pretty much any invertebrates or small animals they can fit in their mouths and in turn sustaining a variety of predators, such as wildlife. Improving conditions for toads – such as creating more ponds, protecting forests and constructing amphibian passages – "we'll improve them for a wide range of additional wildlife."
Historical Importance
Another reason to work to preserve toads around is their "important cultural value," adds an expert. Myths and folklore around toads date back {centuries|hundred
