Can Britain's Common Toads Be Saved from Roads and Terrible Decline?
It's a Friday evening at 7:30, but instead of heading to the pub or watching a film, 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 evenings to safeguard the native amphibian community.
An Alarming Decline in Numbers
The Bufo bufo is becoming increasingly uncommon. A latest study conducted by an wildlife conservation group revealed that the UK toad population have almost halved since 1985. Observing a creature that has been a stalwart of the British countryside in decrease is labeled "worrying" by researchers. Toads "don't need very particular environments" and "ought to live successfully in the majority of habitats in Britain," meaning if even they are not managing to survive, "it indicates that the ecosystem is unbalanced."
The UK toad population has almost halved since 1985
The Threat from Traffic
Though the research didn't cover the reasons for the drop, traffic certainly plays a part. Calculations indicate that 20 tonnes of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which would probably be content to mate "with just a bucket of water," toads favor big bodies of water. Their ability to remain away from water for longer than frogs means they can journey farther to find them – often hundreds of metres. They tend to stick to their traditional paths – it's typical for adult toads to go back to their natal pond to mate.
Migration Patterns
Appropriately enough, the first toads begin their quest for a partner around February 14th, but others travel as late as April, waiting until it gets night and moving after sunset. During that time, toads begin migrating from wherever they have been hibernating "almost simultaneously."
One volunteer, who was raised in the region and has been working to save its toad population since he was a boy, explains that "They've got just one focus: to go and have an orgy." If their path crosses a road, they could be killed by traffic, and that mating period would never happen – preventing a new generation of toads from being born.
Toad Patrols Throughout the United Kingdom
Seeing many of toad carcasses on local roads "inherently strikes a chord with people," and has resulted in the formation of rescue teams throughout the UK – 274 groups are currently registered with a national initiative. These teams pick up toads and carry them over streets in containers, as well as recording the number of toads they find and advocating for other safety solutions, such as road closures and underground wildlife tunnels.
Patrols tend to operate during the breeding period, when toad crossings are frequent. However, this means they can overlook numbers of toadlets, which, having existed as eggs and then juveniles, exit their ponds over an unpredictable schedule in late 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 more difficult to get data on them. At least when adult toads are lost, their carcasses can be counted.
Annual Work
Unlike most patrols, one local team, who are in their eighth season of functioning, go out year-round – not nightly, but whenever conditions are damp, or if someone has posted about a toad sighting in their group chat. When I request to accompany them on patrol, they concede 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 patrol their route with me and see what we can find. "If anyone can locate any toads tonight, that pair 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 scaled a barbed wire fence to check under some logs.
Community Involvement
The mother and son became part of the patrol a while back. The youngster loves all things nature-related and has an ambition to become a conservationist, so his mother started to search for activities they could do jointly to help native animals. Now she enjoys it as much as he does, the middle-aged entrepreneur 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 group. A video he created, urging the local council to close a road through a nature reserve during breeding time, influenced the outcome the team's way. After a year of lobbying, the council approved an "access-only" restriction between evening and morning from late winter through to spring. The majority of motorists duly avoided the route.
Other Wildlife and Difficulties
Several cars go past when I'm out on duty and we find some victims as a result – no amphibians, but three squashed newts. We spot one live amphibian as well, and the youngster is particularly pleased to see a harvestman, which dances in his palms. Yet despite the team's hardest attempts to show me a toad, the local population has clearly settled down for the winter. It seems that I wouldn't have had any better success anywhere else in the country – all the rescue teams I contact explain that it's near-impossible at this time of year.
They project rescuing nearly 10,000 grown amphibians during migration
A message I receive from a different helper, who has generously made the effort to look for toads in a noted location, thought to be the biggest tracked toad group in the UK, arrives in my inbox with the title: "No toads." However, in February and March, he informs me, the team plans to assist approximately 10,000 mature amphibians across the road.
Effectiveness and Limitations
What level of impact can these groups actually make? "The reality that volunteers are doing this consistently on chilly, wet and miserable late nights is remarkable," notes an researcher. "This effort that very much deserves recognition." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since vehicles is just one danger.
Additional Threats
The global warming has resulted in extended spells of drought, which create the poor environment for some of the animals that toads eat, such as invertebrates, while higher water temperatures have led to an increase of toxic plants, which can be harmful to toads. Milder winters also cause toads to emerge from their hibernation more frequently, interfering with the resource preservation vital to their life cycle. Loss of environment – especially the loss of large ponds – is an additional threat.
Experts are "always a bit worried about overemphasizing practical benefits on biodiversity," however "There is a big value in just their presence." 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 sustaining a number of predators, such as hedgehogs and otters. Improving situations for toads – ie creating more ponds, conserving woodland and constructing amphibian passages – "we'll improve them for a wide range of other species."
Cultural Significance
Another reason to work to preserve toads around is their "historical significance," adds an specialist. Myths and folklore around toads go back {centuries|hundred