Can Britain's Common Toads Be Saved from Roads and Population Collapse?
It's a Friday evening at 7:30, but instead of going out or watching a film, I've caught a train to a town in the countryside to meet up with volunteers from a toad patrol. These dedicated individuals give up their evenings to safeguard the local toad population.
A Worrying Decline in Numbers
The Bufo bufo is becoming increasingly uncommon. A recent research led by an wildlife conservation group revealed that the British common toad numbers have almost halved since 1985. Observing a species that has been a stalwart of the British countryside in decrease is described as "worrying" by researchers. Toads "don't require very particular environments" and "should be able to live successfully in the majority of areas in the UK," meaning if even they are not managing to survive, "it indicates that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Danger from Traffic
Though the study didn't examine the causes for the drop, cars certainly plays a part. Estimates indicate that 20 tons of toads are crushed on British roads every year – in other words, several hundred thousand. Unlike frogs, which would probably be content to mate "with just a bucket of water," toads prefer large ponds. Their capacity to remain away from water for more time than frogs allows they can journey farther to find them – sometimes long distances. They usually stick to their traditional paths – it's typical for mature amphibians to return to their birth pond to mate.
Migration Habits
Fittingly, the first toads begin their quest for a mate around Valentine's day, but some move as far as spring, until it gets night and travelling after sunset. During that time, toads start moving from where they have been hibernating "all pretty much at the same time."
One volunteer, who grew up in the area and has been trying to protect its amphibians since he was a boy, explains that "They've got just one focus: to go and have an orgy." If their route crosses a street, they could be killed by traffic, and that mating period would be lost – stopping a next generation of toads from being produced.
Rescue Groups Across the United Kingdom
Finding hundreds of toad carcasses on nearby streets "inherently strikes a chord with people," and has led to the formation of rescue teams across the UK – 274 groups are currently registered with a national initiative. These teams pick up toads and carry them across roads in buckets, as well as counting the number of toads they encounter and advocating for other protection measures, such as blocked roads and underground wildlife tunnels.
Patrols usually work during the migration season, when toad crossings are more regular. However, this means they can overlook numbers of young toads, which, having been eggs and then tadpoles, leave their ponds over an unpredictable schedule in the end of summer. Because of their size – just one or two centimetres wide – "they can get obliterated by vehicles." And as being hit "basically turns them into mush," it's harder to get data on them. At least when adult toads are lost, their carcasses can be counted.
Annual Work
Unlike many groups, a specific volunteer group, who are in their eighth year of functioning, go out throughout the year – not every night, but whenever conditions are warm and wet, or if a member has reported about a amphibian spotting in their messaging app. When I request to accompany them on patrol, they admit it is "not a toady night" – toad hibernation season has started and it's been a arid period – but several of the volunteers willingly accept to walk up and down their area with me and search for any toads. "Should anyone can find any toads tonight, that pair will spot one," says the patrol manager, indicating her teenage child and the longtime volunteer. After for 120 minutes without a glimpse of any amphibians, and now they have scaled a barbed wire fence to check under some wood.
Community Participation
The mother and son became part of the patrol a while back. The youngster adores all things nature-related and has an ambition to become a conservationist, so his parent 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 small business owner tells me – so when the group was looking for a fresh coordinator lately, she volunteered for the role.
The teenager, too, has played an important role in the organization. A clip he made, urging the municipal authority to close a street through a protected area during migration season, influenced the outcome the group's way. After a twelve months of lobbying, the council agreed to an "restricted access" restriction between 5pm and 5am from late winter through to spring. Most drivers duly avoided the route.
Additional Species and Difficulties
A few vehicles go past when I'm out on duty and we discover some casualties as a result – no toads, but several crushed salamanders. We spot one live amphibian as well, and the youngster is particularly pleased to see a harvestman, which dances in his hands. Yet despite the team's hardest attempts to show me a toad, the native community has clearly gone dormant for the colder months. It seems that I wouldn't have had any better success anywhere else in the nation – all the rescue teams I contact explain that it's very difficult at this season.
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 look for toads in a noted location, considered the biggest tracked toad group in the UK, reaches me with the title: "None found." However, in late winter, he tells me, the group plans to assist around 10,000 adult toads over the street.
Effectiveness and Limitations
How much of a difference can these groups actually make? "The fact that volunteers are doing this consistently on cold, damp and unpleasant evenings is quite extraordinary," says an researcher. "This effort that very much should be celebrated." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely – not least because traffic is not the only threat.
Other Dangers
The climate crisis has meant longer periods of dry weather, which cause the poor environment for some of the creatures that toads eat, such as invertebrates, while higher water temperatures have caused an increase of blue-green algae, which can be toxic to toads. Warmer cold seasons also lead toads to emerge from their dormancy more often, disrupting the resource preservation crucial to their life cycle. Loss of environment – especially the loss of large ponds – is an additional threat.
Experts are "often concerned about putting too much of a utilitarian spin on wildlife," but "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 small creatures or tiny organisms they can swallow and in turn feeding a variety of birds and mammals, such as wildlife. Improving conditions for toads – such as building water habitats, protecting forests and constructing toad tunnels – "we'll improve them for a whole bunch of additional wildlife."
Cultural Significance
An additional motive to work to preserve toads around is their "important cultural value," notes an expert. Legends and tales around toads date back {centuries|hundred