Can Britain's Toads Be Saved from Roads and Population Collapse?
It's Friday evening at 7:30, but rather than going out or relaxing at home, I've taken a train to a town in the countryside to meet up with volunteers from a toad patrol. These dedicated individuals give up their nights to safeguard the native amphibian community.
A Worrying Drop in Numbers
The Bufo bufo is becoming increasingly rare. A recent study conducted by an amphibian and reptile charity revealed that the British common toad numbers have dropped by half since the mid-1980s. Observing a creature that has been a fixture of the British countryside in decline is labeled "concerning" by experts. Toads "don't require very specific conditions" and "ought to live successfully in most of areas in Britain," so if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."
Toad populations across the UK have declined by almost 50% since the 1980s
The Danger from Roads
Though the research didn't examine the causes for the decline, cars certainly plays a part. Calculations indicate that 20 tons of toads are crushed on UK roads annually – in other words, several hundred thousand. Unlike frogs, which might be happy to mate "if you left out a small container," toads prefer large ponds. Their ability to remain away from water for more time than frogs means they can travel further to reach them – often long distances. They tend to stick to their ancestral migration routes – it's common for mature amphibians to return to their natal pond to mate.
Breeding Patterns
Fittingly, the initial amphibians begin their quest for a mate around Valentine's day, but some move as late as April, waiting until it gets night and moving after sunset. During that time, toads begin migrating from where they have been overwintering "almost simultaneously."
A local helper, who grew up in the area and has been working to save its amphibians since he was a boy, notes that "Their sole purpose: to go and mate." If their path crosses a street, they could be killed by traffic, and that breeding season would never happen – preventing a new generation of toads from being born.
Rescue Groups Throughout the United Kingdom
Finding many of dead toads on nearby streets "resonates deeply with people," and has resulted in the creation of toad patrols throughout the UK – hundreds of organizations are currently registered with a countrywide program. These groups pick up toads and transport them across roads in containers, as well as counting the quantity of toads they find and advocating for other safety solutions, such as blocked roads and amphibian passages.
Patrols tend to operate during the migration season, when toad crossings are more regular. However, this implies they can overlook groups of young toads, which, having existed as eggs and then tadpoles, leave their water habitats over an irregular timetable 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 hit "basically turns them into mush," it's more difficult to collect information on them. At least when adult toads are killed, their remains can be tallied.
Year-Round Work
Unlike most patrols, one local team, who are in their eighth year of operating, go out year-round – not every night, but when conditions are damp, or if someone has posted about a toad sighting in their messaging app. When I request to accompany them on patrol, they admit it is "not a toady night" – winter dormancy has begun and it's been a dry day – but a few of the helpers willingly accept to walk up and down their area with me and see what we can find. "If anyone can find any toads tonight, those two will find one," says the patrol manager, pointing to her teenage child and the experienced member. We've been out for 120 minutes without a glimpse of any amphibians, and now they have climbed over a barbed wire fence to inspect beneath some logs.
Community Participation
The mother and son became part of the patrol a year and a half ago. The youngster loves all things wildlife and has an goal to become a environmentalist, so his mother started to look for things they could do jointly to protect local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur explains – so when the team was seeking a fresh coordinator recently, she decided to step up.
The teenager, too, has been instrumental in the organization. A video he created, urging the municipal authority to block a road through a protected area during breeding time, influenced the outcome the team's way. After a twelve months of lobbying, the authority approved an "restricted access" rule between evening and morning from February through to April. The majority of motorists respected and avoided the road.
Additional Species and Challenges
Several vehicles go past when I'm out on duty and we find some victims as a result – no amphibians, but several crushed salamanders. We see one living newt as well, and the teenager is especially excited to see a harvestman, which dances in his hands. Yet in spite of the team's best efforts to let me see a toad, the native community has obviously settled down for the winter. 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 very difficult at this time of year.
The group expects to help approximately 10,000 adult toads across the road
One email I get 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 expects to help around 10,000 adult toads over the street.
Impact and Challenges
What level of impact can these groups truly achieve? "The reality that people are performing this regularly on cold, damp and unpleasant evenings is quite extraordinary," says an researcher. "This effort that very much deserves recognition." However, while rescue teams are able to slow the decline, they cannot prevent it entirely – partly since traffic is just one danger.
Additional Threats
The climate crisis has resulted in extended spells of drought, which create the wrong conditions for some of the creatures that toads eat, such as worms and slugs, while warmer ponds have caused an increase of blue-green algae, which can be toxic to toads. Milder winters also lead toads to wake up from their dormancy more frequently, interfering with the resource preservation crucial to their existence. Habitat destruction – especially the loss of big water bodies – is another menace.
Researchers are "always a bit worried about overemphasizing practical benefits on wildlife," however "There is a big value in just having these animals around." But toads do have an important role in the ecosystem, consuming pretty much any invertebrates or small animals they can fit in their mouths and in turn feeding a number of predators, such as wildlife. Enhancing conditions for toads – such as building water habitats, conserving woodland and constructing toad tunnels – "we'll improve them for a wide range of other species."
Historical Importance
An additional motive to try to keep toads around is their "important cultural value," notes an specialist. Myths and folklore around toads date back {centuries|hundred