Can Britain's Toads Survive from Traffic and Population Collapse?
It is Friday night at half past seven, but instead of heading to the pub or relaxing at home, I've taken a train to a market town in the countryside to join volunteers from a amphibian rescue group. These committed people sacrifice their evenings to safeguard the native amphibian community.
An Alarming Drop in Numbers
The common toad is becoming increasingly rare. A recent study conducted by an wildlife conservation group revealed that the British common toad numbers have almost halved since 1985. Seeing a species that has been a fixture of the British countryside in decline is described as "concerning" by researchers. Toads "don't need very particular environments" and "should be able to live successfully in most of habitats in the UK," 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 study didn't examine the reasons for the drop, traffic is a major factor. Calculations indicate that 20 tonnes of toads are crushed on British roads annually – in other words, several hundred thousand. Unlike frogs, which might be happy to mate "with just a bucket of water," toads favor large ponds. Their ability to stay out of water for more time than frogs allows they can journey farther to reach them – often long distances. They usually stick to their traditional paths – it's typical for mature amphibians to return to their birth pond to mate.
Breeding Habits
Fittingly, the initial amphibians begin their quest for a mate around February 14th, but some move as late as spring, until it gets night and travelling through the night. During that period, toads begin migrating from where they have been hibernating "all pretty much at the same time."
A local helper, who grew up in the area and has been working to save its toad population since he was a boy, explains that "Their sole purpose: to go and have an orgy." If their path crosses a street, they could be killed by traffic, and that mating period would never happen – stopping a new generation of toads from being born.
Rescue Groups Across the UK
Finding many of toad carcasses on local roads "resonates deeply with people," and has led to the creation of rescue teams across the UK – 274 groups are officially listed with a national initiative. These teams collect toads and transport them across roads in buckets, as well as counting the number of toads they find and advocating for other safety solutions, such as road closures and amphibian passages.
Volunteers tend to operate during the breeding period, when toad crossings are frequent. However, this implies they can overlook groups of young toads, which, having existed as spawn and then tadpoles, leave their ponds over an unpredictable schedule in the end of summer. Because of their small stature – just a couple of cm wide – "they can get obliterated by car traffic." And as being run over "basically turns them into mush," it's more difficult to get data on them. At least when mature amphibians are lost, their remains can be counted.
Annual Efforts
Unlike most patrols, one local team, who are in their eighth year of operating, go out throughout the year – not every night, but when weather are warm and wet, or if someone has reported about a toad sighting in their messaging app. When I request to accompany them on duty, they concede it is "not a toady night" – toad hibernation season has begun and it's been a dry day – but a few of the helpers gamely agree to walk up and down their area with me and see what we can find. "Should anyone can locate any toads tonight, that pair will find one," says the group coordinator, pointing to her 14-year-old son and the longtime volunteer. We've been out for two hours without a single toad sighting, and now they have climbed over a wire barrier to check under some wood.
Community Participation
The family duo became part of the patrol a year and a half ago. The youngster loves all things nature-related and has an goal to become a environmentalist, so his mother started to look for activities they could do jointly to help local wildlife. 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 lately, she volunteered for the role.
The teenager, too, has played an important role in the group. A video he created, imploring the municipal authority to block a road through a protected area during migration season, influenced the outcome the group's way. After a year of campaigning, the council agreed to an "access-only" rule between evening and morning from February through to April. Most drivers duly avoided the route.
Additional Species and Difficulties
A few cars go past when I'm out on duty and we find some casualties as a consequence – no amphibians, but three squashed newts. We see one live amphibian as well, and the teenager is especially excited to see a daddy longlegs, which dances in his hands. Yet despite the group's best efforts to let me see a toad, the local population has clearly gone dormant for the winter. It seems that I couldn't have found any better success elsewhere in the nation – all the patrol groups I reach out to clarify that it's near-impossible at this time of year.
They project rescuing nearly 10,000 grown amphibians during migration
A message I get from another volunteer, who has kindly made the effort to look for toads in a noted location, thought to be the biggest tracked toad population in the UK, arrives in my inbox with the title: "No toads." However, in February and March, he tells me, the group plans to assist approximately ten thousand mature amphibians across the road.
Effectiveness and Limitations
What level of impact can these groups truly achieve? "The fact that people are performing this regularly on cold, damp and unpleasant evenings is quite extraordinary," notes an researcher. "This effort that very much deserves recognition." However, while rescue teams are able to slow the decline, they can't stop it completely – partly since vehicles is not the only threat.
Other Dangers
The global warming has resulted in longer periods of drought, which cause the poor environment for some of the creatures that toads eat, such as worms and slugs, while warmer ponds have led to an rise of blue-green algae, which can be harmful to toads. Milder winters also lead toads to emerge from their dormancy more often, disrupting the resource preservation crucial to their existence. Habitat destruction – particularly the disappearance of big water bodies – is an additional threat.
Experts are "often concerned about overemphasizing practical benefits on wildlife," but "It's important in just having these animals around." But toads play an important role in the food chain, consuming pretty much any small creatures or tiny organisms they can fit in their mouths and in turn feeding a variety of birds and mammals, such as wildlife. Improving situations for toads – ie building water habitats, protecting forests and constructing amphibian passages – "we'll improve them for a whole bunch of other species."
Historical Significance
Another reason to try to keep toads around is their "important cultural value," notes an expert. Myths and folklore around toads go back {centuries|hundred