Can Britain's Toads Be Saved from Roads and Population Collapse?
It is Friday night at half past seven, but instead of going out or watching a film, I've taken a train to a market town in the countryside to meet up with volunteers from a toad patrol. These committed people sacrifice their evenings to safeguard the native amphibian community.
An Alarming Decline in Population
The Bufo bufo is growing more rare. A latest study conducted by an amphibian and reptile charity showed that the British common toad numbers have dropped by half since the mid-1980s. Observing a creature that has been a fixture of the UK landscape in decrease is described as "worrying" by experts. Toads "don't need very specific conditions" and "should be able to live quite well in the majority of areas in the UK," meaning if even they are struggling to persist, "it indicates that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Threat from Roads
Though the research didn't examine the causes for the drop, cars certainly plays a part. Estimates suggest that 20 tons of toads are crushed on British roads annually – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "with just a bucket of water," toads favor large ponds. Their capacity to stay out of water for more time than frogs means they can journey farther to reach them – sometimes long distances. They usually stick to their ancestral migration routes – 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 mate around February 14th, but some move as far as spring, until it gets night and moving after sunset. During that period, toads begin migrating from wherever they have been overwintering "almost simultaneously."
A local helper, who grew up in the region and has been trying to protect its toad population since he was a child, notes that "Their sole purpose: to go and have an orgy." If their route crosses a street, they could be killed by traffic, and that breeding season would be lost – preventing a next generation of toads from being produced.
Rescue Groups Throughout the United Kingdom
Finding hundreds of dead toads on local roads "inherently strikes a chord with people," and has led to the creation of toad patrols across the UK – 274 groups are currently registered with a national initiative. These teams pick up toads and carry them across roads in containers, as well as counting the number of toads they encounter and advocating for other safety solutions, such as road closures and underground wildlife tunnels.
Volunteers usually work during the breeding period, when toad crossings are more regular. However, this means they can miss numbers of young toads, which, having existed as spawn and then juveniles, leave their ponds over an unpredictable schedule in the end of summer. Because of their small stature – just a couple of cm wide – "they are destroyed by vehicles." And as being hit "basically turns them into mush," it's more difficult to get data on them. At least when adult toads are killed, their remains can be counted.
Year-Round Work
In contrast to most patrols, one local team, who are in their eighth year of operating, go out throughout the year – not nightly, but whenever weather are damp, or if someone has reported about a amphibian spotting in their group chat. When I ask to join them on duty, they admit it is "not a toady night" – 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 area with me and search for any toads. "If anyone can locate any toads tonight, those two will find one," says the group coordinator, pointing to her teenage child and the longtime volunteer. We've been out for 120 minutes without a glimpse of any amphibians, and now they have climbed over a wire barrier to inspect beneath some wood.
Community Participation
The family duo became part of the group 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 things they could do jointly to help local wildlife. Now she enjoys it as much as he does, the middle-aged small business owner tells me – so when the group was seeking a fresh coordinator recently, she volunteered for the role.
The youth, too, has played an important role in the organization. A clip he created, urging the municipal authority to close a street through a protected area during breeding time, swung the decision the group's way. After a twelve months of campaigning, the council approved an "restricted access" restriction between 5pm and 5am from February through to April. The majority of motorists respected and avoided the route.
Additional Species and Challenges
A few cars go past when I'm out on duty and we find some casualties as a consequence – no amphibians, but several crushed salamanders. We spot one living newt as well, and the teenager is particularly pleased to see a daddy longlegs, which dances in his palms. Yet in spite of the team's hardest attempts to show me a toad, the native community has obviously gone dormant for the winter. It appears that I wouldn't have had any better success anywhere else in the country – all the patrol groups I reach out to explain that it's very difficult at this time of year.
This team anticipates assisting around ten thousand mature toads over the street
A message I receive from another volunteer, who has kindly made the effort to look for toads in a famous site, considered the biggest tracked toad group in the UK, reaches me with the subject line: "None found." However, in late winter, he informs me, the group plans to assist around ten thousand adult toads over the street.
Effectiveness and Limitations
What level of impact can these organizations actually make? "The fact that people are performing this consistently on chilly, wet and miserable evenings is remarkable," says an expert. "That's something that very much deserves recognition." However, while toad patrols are able to slow the decline, they cannot prevent it entirely – not least because vehicles is just one danger.
Additional Threats
The climate crisis has resulted in longer periods of drought, which create the wrong conditions for some of the animals that toads consume, such as invertebrates, while higher water temperatures have caused an increase of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to wake up from their hibernation more frequently, interfering with the resource preservation vital to their life cycle. Habitat destruction – especially the loss of large ponds – is another menace.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," but "It's important in just their presence." But toads do have an significant part in the food chain, eating pretty much any invertebrates or tiny organisms they can fit in their mouths and in turn feeding a variety of birds and mammals, such as wildlife. Improving conditions for toads – ie building water habitats, conserving woodland and installing toad tunnels – "benefits for a wide range of additional wildlife."
Historical Importance
Another reason to work to preserve toads around is their "historical significance," adds an expert. Myths and folklore around toads go back {centuries|hundred