Can the UK's Common Toads Be Saved from Traffic and Population Collapse?
It's Friday evening at half past seven, but instead of going out or relaxing at home, I've caught a train to a town in Wiltshire to meet up with local helpers from a toad patrol. These committed people sacrifice their nights to safeguard the native amphibian community.
An Alarming Drop in Numbers
The common toad is becoming increasingly uncommon. A recent research led by an wildlife conservation group showed 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 decline is described as "worrying" by researchers. Toads "don't require very specific conditions" and "should be able to live quite well in most of habitats in the UK," meaning if even they are not managing to survive, "it indicates that the ecosystem is unbalanced."
Since 1985, Britain's toad numbers have nearly been cut in half
The Danger from Traffic
Though the research didn't cover the reasons for the drop, cars certainly plays a part. Calculations indicate that 20 tonnes of toads are crushed on UK roads annually – in other words, several hundred thousand. In contrast to frogs, which might be happy to mate "if you left out a bucket of water," toads favor big bodies of water. Their ability to remain away from water for longer than frogs means they can travel further to reach them – sometimes hundreds of metres. They tend to stick to their traditional paths – it's common for adult toads to go back to their natal pond to mate.
Breeding Habits
Fittingly, the initial amphibians begin their quest for a partner around Valentine's day, but others travel as late as April, until it gets night and moving through the night. During that period, toads begin migrating from where they have been overwintering "all pretty much at the same time."
One volunteer, who was raised in the area and has been trying to protect its amphibians since he was a boy, notes that "They've got just one focus: to go and have an orgy." If their route crosses a road, they could be killed by traffic, and that mating period would never happen – stopping a new generation of toads from being born.
Toad Patrols Across the United Kingdom
Seeing hundreds of dead toads on local roads "resonates deeply with people," and has led to the creation of toad patrols throughout the UK – hundreds of organizations are officially listed with a countrywide program. These teams pick up 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 blocked roads and amphibian passages.
Patrols tend to operate during the migration season, when toad crossings are more regular. However, this means they can miss groups of toadlets, which, having existed as spawn and then tadpoles, exit their water habitats over an irregular timetable in the end of summer. Because of their small stature – just one or two centimetres wide – "they can get obliterated by car traffic." And as being hit "basically turns them into mush," it's harder to get data on them. At least when adult toads are killed, 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 nightly, but when conditions are warm and wet, or if someone has reported about a amphibian spotting in their group chat. When I request to accompany them on duty, they concede it is "not ideal conditions" – winter dormancy has begun and it's been a dry day – but a few 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, those two will spot one," says the group coordinator, pointing to her teenage child and the experienced member. We've been out for two hours 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 group a while back. The youngster adores all things nature-related and has an goal to become a environmentalist, so his mother started to search for things they could do jointly to help native animals. Now she loves it as much as he does, the 41-year-old small business owner explains – so when the group was seeking a new manager recently, she volunteered for the role.
The teenager, too, has played an important role in the organization. A video he made, urging the municipal authority to close a street through a nature reserve during migration season, swung the decision the group's way. After a year of campaigning, the council agreed to an "restricted access" rule between 5pm and 5am from late winter through to spring. Most drivers respected and avoided the route.
Other Wildlife and Difficulties
A few vehicles go past when I'm out on patrol and we find some victims as a consequence – no amphibians, but several crushed salamanders. We spot one live amphibian as well, and the teenager is especially excited to see a daddy longlegs, which moves in his palms. Yet in spite of the group's hardest attempts to let me see a toad, the native community has obviously gone dormant for the winter. It appears that I couldn't have found any better success elsewhere in the country – all the rescue teams I reach out to clarify that it's very difficult at this season.
They project rescuing nearly 10,000 grown amphibians during migration
A message I receive from a different helper, who has kindly made the effort to check for toads in a noted location, considered the biggest tracked toad group in the UK, reaches me with the title: "No toads." However, in late winter, he informs me, the group plans to assist around ten thousand adult toads over the street.
Impact and Challenges
What level of impact can these groups actually make? "The reality that volunteers are performing this consistently on cold, damp and unpleasant evenings is remarkable," notes an researcher. "This effort that very much should be celebrated." However, while toad patrols are able to reduce the drop, they cannot prevent it entirely – not least because vehicles is not the only threat.
Other Dangers
The global warming has resulted in longer periods of dry weather, which create the wrong conditions for some of the creatures that toads consume, such as invertebrates, while higher water temperatures have caused an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to emerge from their hibernation more frequently, interfering with the energy conservation vital to their life cycle. Loss of environment – particularly the loss of large ponds – is an additional threat.
Researchers are "often concerned about overemphasizing practical benefits on biodiversity," however "It's important in just having these animals around." But toads do have an important role in the food chain, eating almost any small creatures or small animals they can swallow and in turn feeding a variety of birds and mammals, such as hedgehogs and otters. Improving conditions for toads – ie creating more ponds, conserving woodland and constructing toad tunnels – "we'll improve them for a whole bunch of additional wildlife."
Historical Importance
An additional motive to work to preserve toads around is their "important cultural value," adds an expert. Myths and folklore around toads go back {centuries|hundred