Will Britain's Common Toads Be Saved from Roads and Population Collapse?
It is a Friday night at half past seven, but rather than heading to the pub or relaxing at home, I've caught a train to a town in Wiltshire to join local helpers from a toad patrol. These dedicated individuals give up their nights to safeguard the local toad population.
A Worrying Drop in Population
The Bufo bufo is growing more rare. A latest research led by an wildlife conservation group revealed that the UK toad population have dropped by half since the mid-1980s. Observing a creature that has been a stalwart of the British countryside in decrease is described as "worrying" by researchers. Toads "don't need very specific conditions" and "should be able to live successfully in most of habitats in the UK," so if even they are struggling to persist, "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 Roads
Though the research didn't cover the causes for the decline, traffic is a major factor. Estimates suggest that 20 tonnes of toads are killed on UK roads annually – that is, hundreds of thousands. In contrast to frogs, which might be happy to mate "with just a bucket of water," toads prefer large ponds. Their ability to remain away from water for longer than frogs allows they can travel further to reach them – often hundreds of metres. They tend to follow their ancestral migration routes – it's common for adult toads to return to their birth pond to mate.
Breeding Patterns
Fittingly, the initial amphibians start their journey for a mate around February 14th, but others travel as late as April, until it gets dark and moving through the night. During that time, toads start moving from where they have been overwintering "almost simultaneously."
A local helper, who grew up in the region and has been trying to protect its toad population since he was a child, explains that "They've got just one focus: to go and mate." If their route crosses a road, they could all get run over, and that mating period would never happen – preventing a next generation of toads from being produced.
Toad Patrols Across the United Kingdom
Seeing hundreds of toad carcasses on nearby streets "inherently strikes a chord with people," and has resulted in the creation of toad patrols throughout the UK – hundreds of organizations are officially listed with a countrywide program. These teams collect toads and carry them across roads in containers, as well as recording 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 amphibian movements are more regular. However, this implies they can overlook numbers of young toads, which, having existed as eggs and then juveniles, exit their water habitats over an unpredictable schedule in late summer. Because of their size – just a couple of cm wide – "they can get obliterated by car traffic." And as being run over "essentially crushes them," it's harder to get data on them. At least when mature amphibians are killed, their remains can be tallied.
Year-Round Work
In contrast to most patrols, a specific volunteer group, who are in their eighth year of operating, go out throughout the year – not every night, but when conditions are damp, or if someone has reported about a toad sighting in their group chat. When I ask to join them on patrol, they concede it is "not ideal conditions" – toad hibernation season has begun and it's been a dry day – but several of the volunteers willingly accept to walk up and down their route with me and see what we can find. "Should anyone can find any toads tonight, that pair will find one," says the group coordinator, pointing to her teenage child and the longtime volunteer. We've been out for 120 minutes without a single toad sighting, and now they have climbed over a barbed wire fence to check under some wood.
Family Participation
The mother and son became part of the patrol a while back. The teenager adores all things nature-related and has an goal to become a environmentalist, 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 entrepreneur explains – so when the group was looking for a fresh coordinator lately, 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 block a street through a protected area during breeding time, influenced the outcome the team's way. After a year of campaigning, the authority approved an "restricted access" restriction between 5pm and 5am from late winter through to spring. The majority of motorists duly avoided the route.
Additional Species and Difficulties
A few cars go by when I'm out on duty and we discover some victims as a consequence – no toads, but several crushed salamanders. We spot one living newt as well, and the teenager is particularly pleased to see a harvestman, which dances in his palms. Yet in spite of the group's best efforts to show me a toad, the local population has clearly gone dormant for the colder months. It appears that I couldn't have found any more luck anywhere else in the country – all the rescue teams I reach out to explain that it's near-impossible at this time of year.
The group expects to help approximately 10,000 adult toads across the road
One email I receive 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 population in the UK, arrives in my inbox with the title: "None found." However, in late winter, he informs me, the group expects to help around 10,000 mature amphibians over the street.
Effectiveness and Challenges
What level of impact can these groups truly achieve? "The fact that volunteers are performing this regularly on cold, damp and unpleasant evenings is remarkable," says an expert. "That's something that very much should be celebrated." However, while toad patrols 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 meant longer periods of drought, which create the poor environment for some of the animals that toads eat, such as worms and slugs, while warmer ponds have led to an increase of blue-green algae, which can be toxic to toads. Warmer cold seasons also lead toads to wake up from their dormancy more often, disrupting the energy conservation crucial to their existence. Loss of environment – especially the disappearance of big water bodies – is another menace.
Experts are "often concerned about overemphasizing practical benefits on biodiversity," but "There is a big value in just their presence." But toads do have an significant part in the food chain, eating pretty much any small creatures or small animals they can fit in their mouths and in turn sustaining a number of predators, such as wildlife. Enhancing conditions for toads – ie creating more ponds, conserving woodland and constructing toad tunnels – "we'll improve them for a whole bunch of other species."
Historical Significance
Another reason to try to keep toads around is their "historical significance," adds an specialist. Legends and tales around toads go back {centuries|hundred