Can the UK's Common Toads Be Saved from Roads and Population Collapse?
It's a Friday evening at 7:30, but instead of heading to the pub or watching a film, I've caught a train to a market town in Wiltshire to meet up with volunteers from a toad patrol. These committed people give up their evenings to safeguard the local toad population.
An Alarming Decline in Population
The common toad is growing more uncommon. A recent research led by an amphibian and reptile charity showed that the UK toad population have dropped by half since the mid-1980s. Observing a creature that has been a fixture of the UK landscape in decline is described as "worrying" by experts. Toads "don't need very particular environments" and "should be able to live quite well in the majority of areas in Britain," so if even they are not managing to survive, "it kind of suggests that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Danger from Roads
Though the study didn't cover the causes for the drop, traffic certainly plays a part. Estimates suggest that 20 tonnes of toads are killed on British roads every year – in other words, several hundred thousand. In contrast to frogs, which would probably be happy to mate "with just a small container," toads prefer big bodies of water. Their capacity to remain away from water for more time than frogs means they can travel further to reach them – sometimes long distances. They usually follow their traditional paths – it's common for adult toads to go back to their birth pond to mate.
Breeding Habits
Appropriately enough, the first toads start their journey for a mate around Valentine's day, but others travel as late as April, until it gets dark and travelling through the night. During that period, toads start moving from wherever they have been hibernating "all pretty much at the same time."
A local helper, who grew up in the region and has been trying to protect its toad population since he was a child, notes that "Their sole purpose: to go and have an orgy." If their route happens to a street, they could be killed by traffic, and that mating period would be lost – stopping a next generation of toads from being produced.
Rescue Groups Throughout the UK
Seeing hundreds of toad carcasses on local roads "resonates deeply with people," and has led to the formation of rescue teams throughout the UK – hundreds of organizations are currently registered with a national initiative. These teams collect toads and carry them over streets in containers, as well as counting the quantity of toads they encounter and advocating for other safety solutions, such as road closures and underground wildlife tunnels.
Patrols tend to operate during the breeding period, when amphibian movements are frequent. However, this means they can miss groups of young toads, which, having been eggs 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 "basically turns them into mush," it's harder to get data on them. At least when adult toads are lost, their remains can be tallied.
Annual Efforts
In contrast to many groups, one local team, who are in their eighth season of operating, go out year-round – not nightly, but whenever conditions are damp, or if a member has posted about a amphibian spotting in their messaging app. When I ask to join 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 willingly accept to walk up and down their route with me and see what we can find. "Should anyone can find any toads tonight, those two will find one," says the patrol manager, 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 wire barrier to inspect beneath some logs.
Community 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 native animals. Now she loves it as much as he does, the 41-year-old small business owner explains – so when the group was looking for a new manager recently, she volunteered for the role.
The youth, too, has played an important role in the group. A clip he made, urging the municipal authority to close a road through a nature reserve during breeding time, influenced the outcome the team's way. After a twelve months of lobbying, the authority agreed to an "access-only" restriction between 5pm and 5am from late winter through to April. The majority of motorists respected and avoided the road.
Additional Species and Difficulties
A few cars go past when I'm out on patrol and we find some casualties as a result – no toads, but three squashed newts. We see one live amphibian as well, and the youngster is particularly pleased to see a daddy longlegs, which moves in his palms. Yet in spite of the team's best efforts to show me a toad, the local population has clearly gone dormant for the winter. It appears that I couldn't have found any better success elsewhere in the nation – all the patrol groups I contact clarify that it's very difficult at this season.
This team anticipates assisting around ten thousand mature toads over the street
One email I get from a different helper, who has generously taken the trouble to look for toads in a famous site, thought to be the biggest tracked toad group in the UK, reaches me with the subject line: "No toads." However, in February and March, he informs me, the team expects to help around 10,000 mature amphibians across the road.
Effectiveness and Challenges
What level of impact can these organizations actually make? "The fact that volunteers are doing this regularly on chilly, wet and miserable late nights is remarkable," notes an expert. "This effort that very much deserves recognition." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since vehicles is not the only threat.
Additional Threats
The climate crisis has meant extended spells of dry weather, which create the poor environment for some of the animals that toads eat, such as worms and slugs, while warmer ponds have caused an rise of toxic plants, which can be harmful to toads. Warmer cold seasons also cause toads to emerge from their dormancy more frequently, disrupting the energy conservation crucial to their life cycle. Habitat destruction – particularly the loss of big water bodies – is another menace.
Researchers are "often concerned about overemphasizing practical benefits on biodiversity," however "It's important in just having these animals around." But toads play an significant part in the food chain, eating pretty much any invertebrates or small animals they can swallow and in turn sustaining a number of predators, such as wildlife. Improving conditions for toads – ie building water habitats, protecting forests and installing amphibian passages – "benefits for a wide range of other species."
Historical Importance
Another reason to try to keep toads present is their "important cultural value," adds an expert. Myths and folklore around toads go back {centuries|hundred