Will the UK's Toads Be Saved from Traffic and Population Collapse?
It's a Friday night at half past seven, but rather than heading to the pub or watching a film, I've caught a train to a town in the countryside to meet up with local helpers from a amphibian rescue group. These dedicated individuals sacrifice their evenings to safeguard the native amphibian community.
A Worrying Decline in Numbers
The Bufo bufo is becoming increasingly uncommon. A latest research led by an wildlife conservation group showed that the UK toad population have almost halved since the mid-1980s. Observing a species that has been a stalwart of the British countryside in decline is labeled "worrying" by researchers. Toads "don't need very particular environments" and "ought 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 Roads
Though the research didn't examine the causes for the drop, traffic is a major factor. Calculations indicate that 20 tonnes of toads are killed on British roads every year – in other words, several hundred thousand. Unlike frogs, which might be happy to mate "with just a bucket of water," toads prefer big bodies of water. Their capacity to stay out of water for longer than frogs allows they can journey farther to find them – often long distances. They usually follow their traditional paths – it's typical for mature amphibians to go back to their birth pond to mate.
Breeding Patterns
Fittingly, the first toads begin their quest for a partner around Valentine's day, but others travel as far as spring, until it gets night and travelling through the night. During that time, toads begin migrating from wherever they have been hibernating "all pretty much at the same time."
A local helper, who grew up in the region and has been working to save its toad population since he was a child, notes that "Their sole purpose: to go and mate." If their path happens to a road, they could be killed by traffic, and that mating period would be lost – preventing a new generation of toads from being born.
Toad Patrols Across the UK
Finding hundreds of toad carcasses on nearby streets "resonates deeply with people," and has resulted in the formation of toad patrols throughout the UK – hundreds of organizations are currently registered with a national initiative. These groups collect toads and carry them over streets in buckets, as well as counting the quantity of toads they find and advocating for other safety solutions, such as road closures and amphibian passages.
Patrols usually work during the migration season, when amphibian movements are more regular. However, this implies they can overlook numbers of toadlets, which, having been spawn and then tadpoles, exit their ponds 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 hit "basically turns them into mush," it's harder to get data on them. At least when mature amphibians are killed, their remains can be tallied.
Annual Work
In contrast to many groups, a specific volunteer group, who are in their eighth season of operating, go out throughout the year – not nightly, but whenever conditions are warm and wet, or if someone has reported about a amphibian spotting in their messaging app. When I ask to join them on patrol, they concede it is "not a toady night" – winter dormancy has started and it's been a dry day – but a few of the helpers willingly accept to walk up and down their route with me and search for any toads. "If anyone can find any toads tonight, that pair will find one," says the group coordinator, pointing to her 14-year-old son and the experienced member. After for two hours without a glimpse of any amphibians, and now they have scaled a wire barrier to check under some logs.
Family Participation
The mother and son became part of the patrol a while back. The teenager loves all things wildlife and has an ambition to become a conservationist, so his parent started to look for activities they could do together 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 looking for a new manager 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 road through a nature reserve during migration season, influenced the outcome the group's way. After a twelve months of lobbying, the authority agreed to an "restricted access" restriction between evening and morning from February through to spring. The majority of motorists respected and avoided the route.
Additional Species and Challenges
A few cars go past when I'm out on patrol and we find some victims as a result – no amphibians, but several crushed salamanders. We see one live amphibian as well, and the teenager is especially excited to see a harvestman, which moves in his palms. Yet despite the group's hardest attempts to show me a toad, the local population has obviously gone dormant for the colder months. It appears that I couldn't have found any more luck anywhere else in the nation – all the patrol groups I reach out to explain that it's near-impossible at this time of year.
This team anticipates assisting around ten thousand mature toads over the street
A message I receive from a different helper, who has generously made the effort to check for toads in a noted location, thought to be the largest accurately monitored toad group in the UK, reaches me with the subject line: "None found." However, in February and March, he informs me, the group expects to help approximately 10,000 mature amphibians over the street.
Impact and Challenges
What level of impact can these organizations truly achieve? "The reality that volunteers are doing this regularly on chilly, wet and miserable evenings is quite extraordinary," notes an researcher. "This effort that very much deserves recognition." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely – partly since vehicles is not the only threat.
Additional Threats
The climate crisis has resulted in extended spells of drought, which create the poor environment for some of the creatures that toads eat, such as invertebrates, while higher water temperatures have caused an rise of blue-green algae, which can be toxic to toads. Warmer cold seasons also lead toads to emerge from their dormancy more often, interfering with the energy conservation crucial to their existence. Loss of environment – especially the loss of large ponds – is an additional threat.
Researchers are "always a bit worried about putting too much of a utilitarian spin on wildlife," however "There is a big value in just their presence." But toads do have an important role in the ecosystem, consuming almost any small creatures or tiny organisms they can fit in their mouths and in turn feeding a number of predators, such as hedgehogs and otters. Improving conditions for toads – such as creating more ponds, protecting forests and constructing toad tunnels – "benefits for a whole bunch of other species."
Historical Significance
An additional motive to try to keep toads around is their "important cultural value," notes an expert. Myths and folklore around toads go back {centuries|hundred