Will Britain's Common Toads Survive from Traffic and Population Collapse?
It is Friday night at 7:30, but instead of heading to the pub or relaxing at home, I've taken a train to a town in Wiltshire to join volunteers from a amphibian rescue group. These committed people sacrifice their evenings to protect the local toad population.
An Alarming Drop in Population
The common toad is becoming increasingly rare. A recent research led by an amphibian and reptile charity revealed that the British common toad numbers have almost halved since the mid-1980s. Seeing a creature that has been a stalwart of the British countryside in decrease is labeled "worrying" by experts. Toads "don't require very specific conditions" and "ought to live successfully in the majority of areas in Britain," so if even they are not managing to survive, "it indicates that things are not as they should be."
The UK toad population has almost halved since 1985
The Danger from Traffic
Though the research didn't cover the causes for the decline, cars certainly plays a part. Calculations indicate that 20 tons of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "if you left out a small container," toads favor large ponds. Their capacity to remain away from water for more time than frogs allows they can journey farther to find them – often long distances. They usually follow their traditional paths – it's common for adult toads to return to their natal pond to mate.
Migration Habits
Appropriately enough, the initial amphibians start their journey for a partner around February 14th, but some move as far as April, waiting until it gets night and moving after sunset. During that period, toads start moving from where they have been overwintering "all pretty much at the same time."
A local helper, who was raised in the region and has been working to save its amphibians since he was a child, notes that "Their sole purpose: to go and have an orgy." If their path crosses a street, they could all get run over, and that mating period would never happen – preventing a new generation of toads from being produced.
Rescue Groups Throughout the United Kingdom
Seeing hundreds of dead toads on nearby streets "inherently strikes a chord with people," and has resulted in the formation of toad patrols across the UK – hundreds of organizations are officially listed with a countrywide program. These groups collect toads and carry them across roads in containers, as well as counting the number of toads they find and lobbying for other protection measures, such as blocked roads and amphibian passages.
Patrols usually work during the breeding period, when toad crossings are more regular. However, this means they can overlook groups of toadlets, which, having been spawn and then tadpoles, exit their ponds over an irregular timetable 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 mature amphibians are lost, their remains can be tallied.
Year-Round Efforts
In contrast to many groups, one local team, who are in their eighth season of functioning, go out throughout the year – not every night, but when weather are damp, or if someone has posted about a toad sighting in their group chat. When I ask to join them on patrol, they concede it is "not a toady night" – toad hibernation season has started and it's been a arid period – but several of the volunteers gamely agree to patrol their area with me and search for any toads. "If anyone can find any toads tonight, that pair will find one," says the patrol manager, pointing to her teenage child and the experienced member. After for two hours without a glimpse of any amphibians, and now they have scaled a wire barrier to check under some logs.
Family Involvement
The mother and son became part of the patrol a while back. The teenager loves all things wildlife and has an goal to become a conservationist, so his mother started to search for activities they could do together to protect local wildlife. Now she loves it as much as he does, the middle-aged small business owner tells me – so when the group was seeking a fresh coordinator lately, she volunteered for the role.
The youth, too, has played an important role in the group. A video he made, imploring the local council to block a street through a nature reserve during breeding time, influenced the outcome the team's way. After a year of campaigning, the authority approved an "access-only" restriction between 5pm and 5am from late winter through to April. The majority of motorists respected and avoided the road.
Other Wildlife and Difficulties
Several vehicles go past when I'm out on patrol 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 hardest attempts to let me see a toad, the native community has obviously gone dormant for the colder months. It appears that I couldn't have found any more luck elsewhere in the nation – all the rescue teams I reach out to clarify that it's very difficult at this time of year.
This team anticipates assisting around ten thousand mature toads over the street
A message I receive from another volunteer, who has generously made the effort to check for toads in a noted location, considered the largest accurately monitored toad group in the UK, reaches me with the subject line: "None found." However, in late winter, he informs me, the group expects to help approximately ten thousand adult toads across the road.
Impact and Limitations
What level of impact can these groups truly achieve? "The fact that people are performing this regularly on cold, damp and unpleasant late nights is quite extraordinary," says an researcher. "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 vehicles is just one danger.
Additional Threats
The climate crisis has resulted in extended spells of dry weather, which cause the wrong conditions for some of the creatures that toads eat, such as invertebrates, while higher water temperatures have led to an increase of blue-green algae, which can be harmful to toads. Milder winters also lead toads to emerge from their dormancy more often, interfering with the energy conservation crucial to their existence. Loss of environment – particularly the disappearance of large ponds – is an additional threat.
Experts are "often concerned about overemphasizing practical benefits on wildlife," however "It's important in just having these animals around." But toads play an important role in the food chain, eating pretty much any invertebrates or tiny organisms they can swallow and in turn sustaining a variety of predators, such as hedgehogs and otters. Enhancing situations for toads – ie building water habitats, conserving woodland and constructing amphibian passages – "benefits for a wide range of additional wildlife."
Historical Importance
An additional motive to try to keep toads present is their "important cultural value," adds an expert. Myths and folklore around toads go back {centuries|hundred