Will the UK's Common Toads Survive from Traffic and Population Collapse?
It's a Friday night at 7:30, but rather than heading to the pub or watching a film, I've taken a train to a town in Wiltshire to meet up with volunteers from a amphibian rescue group. These dedicated individuals give up their evenings to safeguard the native amphibian community.
A Worrying Drop in Population
The common toad is growing more uncommon. A latest study led by an amphibian and reptile charity revealed that the British common toad numbers have almost halved since 1985. Seeing a creature that has been a fixture of the British countryside in decrease is labeled "concerning" by experts. Toads "don't need very specific conditions" and "ought to live successfully in the majority of habitats in Britain," meaning if even they are not managing to survive, "it kind of suggests that things are not as they should be."
Since 1985, Britain's toad numbers have nearly been cut in half
The Threat from Traffic
Though the study didn't examine the reasons for the decline, traffic certainly plays a part. Estimates indicate that 20 tons of toads are killed on UK roads every year – in other words, several hundred thousand. In contrast to frogs, which would probably be content to mate "if you left out a bucket of water," toads prefer big bodies of water. Their capacity to remain away from water for longer than frogs means they can journey farther to find them – often long distances. They tend to follow their ancestral migration routes – it's common for adult toads to go back to their natal pond to mate.
Breeding Patterns
Appropriately enough, the initial amphibians start their journey for a partner around Valentine's day, but others travel as late as April, until it gets dark and travelling through the night. During that period, toads begin migrating from wherever 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 child, explains that "They've got just one focus: to go and have an orgy." If their route happens to a street, they could all get run over, and that mating period would be lost – preventing a new generation of toads from being produced.
Rescue Groups Across the UK
Seeing many of dead toads on local roads "inherently strikes a chord with people," and has resulted in the formation of toad patrols throughout the UK – hundreds of organizations are currently registered with a national initiative. These groups collect toads and carry them across roads in containers, as well as counting the quantity of toads they encounter and advocating for other safety solutions, such as blocked roads and underground wildlife tunnels.
Patrols tend to operate during the breeding period, when toad crossings are more regular. However, this implies they can miss groups of toadlets, which, having existed as eggs and then juveniles, leave their water habitats over an irregular timetable in late summer. Because of their size – just a couple of cm wide – "they are destroyed by vehicles." And as being hit "basically turns them into mush," it's harder to collect information on them. At least when mature amphibians are killed, their remains can be counted.
Annual Work
Unlike most patrols, one local team, who are in their eighth year of functioning, go out year-round – not every night, but whenever conditions are damp, or if someone has reported about a amphibian spotting in their messaging app. When I request to accompany them on patrol, they concede it is "not a toady night" – toad hibernation season has begun and it's been a dry day – but several of the helpers gamely agree to patrol their route with me and see what we can find. "Should anyone can find any toads tonight, those two will find 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 climbed over a barbed wire fence to check under some logs.
Family Involvement
The family duo joined the patrol a while back. The youngster loves all things wildlife and has an ambition to become a conservationist, so his mother started to search for activities they could do together to protect native animals. Now she loves it as much as he does, the middle-aged small business owner explains – so when the team was looking for a fresh coordinator recently, she decided to step up.
The teenager, too, has played an important role in the group. A clip he created, imploring the local council to close a road through a nature reserve during migration season, 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 late winter through to April. The majority of motorists duly avoided the road.
Additional Species and Challenges
Several cars go past when I'm out on patrol and we find some victims as a result – no toads, but three squashed newts. We see one living newt as well, and the teenager is especially excited to see a daddy longlegs, which moves in his hands. Yet in spite of the team's hardest attempts 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 better success elsewhere in the country – all the patrol groups I contact clarify 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 look for toads in a noted location, considered the largest accurately monitored toad population in the UK, reaches me with the title: "No toads." However, in late winter, he tells me, the team expects to help approximately ten thousand adult toads across the road.
Impact and Limitations
How much of a difference can these groups actually make? "The reality that volunteers are performing this regularly on chilly, wet and miserable evenings is quite extraordinary," notes an expert. "This effort that very much should be celebrated." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely – partly since traffic is just one danger.
Other Dangers
The climate crisis has resulted in extended spells of drought, which create the poor environment for some of the animals that toads eat, such as invertebrates, while higher water temperatures have led to an increase of blue-green algae, which can be toxic to toads. Warmer cold seasons also cause toads to wake up from their dormancy more often, interfering with the resource preservation crucial to their existence. Loss of environment – especially the disappearance of large ponds – is another menace.
Experts are "often concerned about overemphasizing practical benefits on biodiversity," however "It's important in just their presence." But toads do have an significant part in the food chain, eating almost any small creatures or small animals they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as wildlife. Improving conditions for toads – ie creating more ponds, conserving woodland and constructing toad tunnels – "we'll improve them for a whole bunch of additional wildlife."
Cultural Importance
Another reason to work to preserve toads around is their "important cultural value," notes an expert. Myths and folklore around toads date back {centuries|hundred