Can Britain's Common Toads Survive from Roads and Population Collapse?
It's Friday evening at half past seven, but instead of heading to the pub or watching a film, I've caught a train to a town in the countryside to join local helpers from a amphibian rescue group. These dedicated individuals give up their nights to protect the native amphibian community.
An Alarming Drop in Numbers
The common toad is becoming increasingly rare. A recent study conducted by an wildlife conservation group revealed that the UK toad population have almost halved since 1985. Seeing a species that has been a fixture of the British countryside in decline is described as "worrying" by experts. Toads "don't require very specific conditions" and "ought to live quite well in most of areas in Britain," so 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 Traffic
Though the research didn't cover the causes for the drop, traffic certainly plays a part. Estimates suggest that 20 tons of toads are killed on UK roads every year – that is, hundreds of thousands. In contrast to frogs, which would probably be happy to mate "if you left out a bucket of water," toads favor big bodies of water. Their ability to remain away from water for more time than frogs allows they can journey farther to reach them – sometimes hundreds of metres. They usually follow their traditional paths – it's typical for mature amphibians to return to their birth pond to mate.
Breeding Habits
Appropriately enough, the first toads start their journey for a partner around February 14th, but others travel as late as spring, waiting until it gets night and travelling after sunset. During that time, toads start moving from where they have been overwintering "all pretty much at the same time."
A local helper, who grew up in the area and has been trying to protect its amphibians since he was a child, explains that "Their sole purpose: to go and mate." If their path crosses a road, they could all get run over, and that breeding season would never happen – preventing a new generation of toads from being produced.
Toad Patrols Throughout the United Kingdom
Finding many of toad carcasses on local roads "inherently strikes a chord with people," and has led to the creation of rescue teams across the UK – 274 groups are currently registered with a national initiative. These groups pick up toads and carry them across roads in buckets, as well as recording the number of toads they encounter and advocating for other protection measures, such as road closures and amphibian passages.
Volunteers usually work during the breeding period, when toad crossings are more regular. However, this implies they can overlook numbers of toadlets, which, having existed as eggs and then tadpoles, exit their ponds over an unpredictable schedule in the end of summer. Because of their size – just a couple of cm wide – "they can get obliterated by car traffic." And as being hit "essentially crushes them," it's harder to get data on them. At least when adult toads are lost, their remains can be counted.
Year-Round Work
Unlike most patrols, a specific volunteer group, who are in their eighth year of functioning, go out year-round – not nightly, but when conditions are damp, or if a member has reported about a toad sighting in their group chat. When I ask to join them on duty, they concede it is "not ideal conditions" – winter dormancy has begun and it's been a dry day – but a few of the helpers gamely agree 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 group coordinator, pointing to her 14-year-old son and the experienced member. After for two hours without a glimpse of any amphibians, and now they have climbed over a wire barrier to check under some logs.
Family Participation
The mother and son became part of the patrol a while back. The youngster adores all things nature-related and has an ambition to become a conservationist, so his mother started to look for things they could do jointly to help native animals. Now she loves it as much as he does, the middle-aged entrepreneur tells me – so when the group was looking for a fresh coordinator recently, she volunteered for the role.
The youth, too, has played an important role in the organization. A clip he created, urging the local council to close a road through a nature reserve during migration season, swung the decision the team's way. After a year of campaigning, the council approved an "access-only" restriction between 5pm and 5am from late winter through to spring. The majority of motorists respected and avoided the route.
Other Wildlife and Difficulties
Several vehicles go past when I'm out on patrol and we find some victims as a consequence – no toads, but three squashed newts. We see one live amphibian as well, and the youngster is especially excited to see a daddy longlegs, which dances in his hands. Yet despite the team's hardest attempts to show me a toad, the local population has clearly gone dormant for the winter. It appears that I couldn't have found any more luck elsewhere in the nation – all the patrol groups I reach out to clarify that it's near-impossible at this season.
The group expects to help approximately 10,000 adult toads across the road
A message I receive from another volunteer, 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, reaches me with the subject line: "None found." However, in late winter, he informs me, the team expects to help around ten thousand mature amphibians over the street.
Impact and Challenges
How much of a difference can these groups actually make? "The reality that volunteers are doing this regularly on chilly, wet and miserable evenings is remarkable," notes an researcher. "This effort that very much should be celebrated." However, while rescue teams are able to slow the decline, they cannot prevent it entirely – not least because traffic is not the only threat.
Other Dangers
The climate crisis has resulted in extended spells of dry weather, which create the poor environment for some of the creatures that toads eat, such as invertebrates, while warmer ponds have led to an increase of toxic plants, which can be toxic to toads. Warmer cold seasons also lead toads to emerge from their dormancy more frequently, disrupting the energy conservation vital to their life cycle. Habitat destruction – particularly the loss of big water bodies – is another menace.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," but "There is a big value in just having these animals around." But toads do have an important role in the ecosystem, consuming pretty much any invertebrates or tiny organisms they can swallow and in turn sustaining a number of birds and mammals, such as wildlife. Improving conditions for toads – ie creating more ponds, protecting forests and installing amphibian passages – "we'll improve them for a whole bunch of other species."
Historical Importance
An additional motive to work to preserve toads around is their "important cultural value," adds an expert. Myths and folklore around toads go back {centuries|hundred