Can Britain's Toads Be Saved from Roads and Terrible Decline?
It is Friday evening at half past seven, but rather than heading to the pub or relaxing at home, 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 native amphibian community.
An Alarming Decline in Population
The Bufo bufo is growing more rare. A recent study conducted by an wildlife conservation group showed that the British common toad numbers have almost halved since 1985. Seeing a species that has been a fixture of the British countryside in decrease is described as "concerning" by researchers. Toads "don't need very particular environments" and "ought to live successfully in most of areas in Britain," so if even they are struggling to persist, "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 Threat from Roads
Though the research didn't examine the reasons for the drop, traffic is a major factor. Estimates indicate that 20 tons of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which might be happy to mate "if you left out a bucket of water," toads prefer large ponds. Their capacity to stay out of water for more time than frogs means they can journey farther to find them – often hundreds of metres. They usually follow their traditional paths – it's common for mature amphibians to return to their birth pond to mate.
Breeding Patterns
Fittingly, the initial amphibians begin their quest for a partner around Valentine's day, but others travel as far as spring, until it gets night and travelling after sunset. During that period, toads begin migrating from where they have been hibernating "all pretty much at the same time."
One volunteer, who grew up in the region and has been trying to protect its amphibians since he was a boy, notes that "They've got just one focus: to go and mate." If their route crosses a street, they could be killed by traffic, and that breeding season would be lost – preventing a new generation of toads from being born.
Rescue Groups Across the UK
Finding many of toad carcasses on nearby streets "inherently strikes a chord with people," and has resulted in the creation of toad patrols across the UK – hundreds of organizations are currently registered with a countrywide program. These teams pick up toads and transport them across roads in buckets, as well as counting the number of toads they encounter and lobbying for other safety solutions, such as road closures and underground wildlife tunnels.
Patrols usually work during the breeding period, when toad crossings are frequent. However, this implies they can overlook groups of young toads, which, having been eggs and then juveniles, leave their water habitats over an unpredictable schedule in the end of summer. Because of their small stature – just a couple of cm wide – "they are destroyed by car traffic." And as being hit "basically turns them into mush," it's harder to get data on them. At least when mature amphibians are killed, their carcasses can be counted.
Annual Efforts
In contrast to most patrols, one local team, who are in their eighth year of functioning, go out throughout the year – not every night, but when conditions are damp, or if someone has reported about a amphibian spotting in their messaging app. When I request to accompany them on duty, they admit it is "not ideal conditions" – toad hibernation season has begun and it's been a dry day – but a few of the helpers gamely agree to patrol their area with me and search for any toads. "If anyone can locate any toads tonight, those two will spot one," says the patrol manager, indicating her teenage child and the experienced member. After for 120 minutes without a glimpse of any amphibians, and now they have climbed over a barbed wire fence to check under some logs.
Family Involvement
The family duo became part of the patrol a while back. The teenager loves all things nature-related and has an goal to become a conservationist, so his parent 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 team was seeking a new manager recently, she decided to step up.
The youth, too, has played an important role in the organization. A clip he created, urging the local council to close a street through a protected area during breeding time, influenced the outcome the group's way. After a twelve months of campaigning, the council approved an "restricted access" restriction between evening and morning from late winter through to spring. Most drivers duly avoided the route.
Other Wildlife and Challenges
A few cars go by when I'm out on patrol and we find some victims as a consequence – no toads, but three squashed newts. We spot one living newt as well, and the youngster is especially excited to see a harvestman, which dances in his hands. Yet despite the team's best efforts 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 better success elsewhere in the country – all the patrol groups I reach out to explain that it's near-impossible at this season.
They project rescuing nearly 10,000 grown amphibians during migration
One email I receive from another volunteer, who has generously taken the trouble to check for toads in a famous site, thought to be the biggest tracked toad group in the UK, reaches me with the title: "None found." However, in late winter, he tells me, the team plans to assist around ten thousand adult toads over the street.
Impact and Challenges
How much of a difference can these groups truly achieve? "The fact that people are doing this consistently on cold, damp and unpleasant evenings is remarkable," says an researcher. "That's something that very much should be celebrated." However, while rescue teams are able to reduce the drop, they can't stop it completely – partly since vehicles is just one danger.
Additional Threats
The climate crisis has resulted in extended spells of drought, which cause the wrong conditions for some of the animals that toads eat, such as invertebrates, while higher water temperatures have led to an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also cause toads to wake up from their hibernation more often, interfering with the resource preservation vital to their life cycle. Habitat destruction – especially the disappearance of large ponds – is an additional threat.
Researchers are "always a bit worried about putting too much of a utilitarian spin on biodiversity," but "There is a big value in just having these animals around." But toads play an significant part in the ecosystem, consuming pretty much any small creatures or tiny organisms they can swallow and in turn sustaining a variety of predators, such as hedgehogs and otters. Enhancing situations for toads – such as building water habitats, conserving woodland and installing amphibian passages – "we'll improve them for a whole bunch of additional wildlife."
Cultural Significance
Another reason to work to preserve toads around is their "historical significance," adds an expert. Legends and tales around toads go back {centuries|hundred