Will the UK's Toads Be Saved from Roads and Population Collapse?
It's Friday night at 7:30, but instead of going out or relaxing at home, I've caught a train to a market town in Wiltshire to join local helpers from a amphibian rescue group. These committed people give up their evenings to protect the native amphibian community.
An Alarming Drop in Population
The Bufo bufo is growing more uncommon. A recent study conducted by an wildlife conservation group revealed that the UK toad population have almost halved since the mid-1980s. Seeing a species that has been a stalwart of the British countryside in decline is described as "concerning" by researchers. Toads "don't require very specific conditions" and "should be able to live quite well in most of habitats in the UK," meaning if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."
Since 1985, Britain's toad numbers have nearly been cut in half
The Threat from Traffic
Though the study didn't examine the reasons for the drop, traffic certainly plays a part. Calculations suggest that 20 tonnes of toads are killed on UK roads annually β in other words, several hundred thousand. Unlike frogs, which would probably be happy to mate "if you left out a bucket of water," toads prefer big bodies of water. Their capacity to stay out of water for longer than frogs means they can journey farther to reach them β sometimes hundreds of metres. They usually follow their ancestral migration routes β it's common for mature amphibians to return to their birth pond to mate.
Migration Patterns
Appropriately enough, the first toads start their journey for a partner around February 14th, but others travel as late as spring, waiting until it gets night and moving through the night. During that time, toads begin migrating from where they have been overwintering "all pretty much at the same time."
One volunteer, who was raised 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 route crosses a street, they could all get run over, and that mating period would be lost β preventing a new generation of toads from being born.
Toad Patrols 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 β hundreds of organizations are officially listed with a countrywide program. These groups collect toads and transport them across roads in buckets, as well as counting the quantity of toads they encounter and lobbying for other safety solutions, such as road closures and underground wildlife tunnels.
Patrols tend to operate during the migration season, when toad crossings are frequent. However, this means they can overlook numbers of toadlets, which, having been eggs and then tadpoles, leave their ponds over an irregular timetable in late summer. Because of their small stature β just a couple of cm wide β "they can get obliterated by vehicles." And as being hit "basically turns them into mush," it's more difficult to collect information on them. At least when mature amphibians are lost, their carcasses can be counted.
Annual Work
Unlike many groups, a specific volunteer group, who are in their eighth season of operating, go out year-round β not nightly, but when weather are damp, or if a member has posted about a toad sighting in their messaging app. When I ask to join them on patrol, they concede it is "not a toady night" β toad hibernation season has started and it's been a arid period β but a few of the volunteers willingly accept to patrol their area with me and search for any toads. "Should anyone can locate any toads tonight, that pair will find one," says the group coordinator, indicating her teenage child and the experienced member. We've been out for two hours without a single toad sighting, and now they have scaled a barbed wire fence to inspect beneath some logs.
Family Participation
The mother and son became part of the patrol a year and a half ago. The youngster adores all things nature-related and has an ambition to become a conservationist, so his parent started to look for activities they could do together to help native animals. Now she loves it as much as he does, the middle-aged entrepreneur tells me β so when the group was seeking a new manager lately, she volunteered for the role.
The youth, too, has been instrumental in the group. A video he made, imploring the local council to block a road through a protected area during breeding time, swung the decision the group's way. After a twelve months of lobbying, the council agreed to an "access-only" rule between evening and morning from late winter through to April. Most drivers duly avoided the road.
Other Wildlife and Difficulties
A few vehicles go by when I'm out on duty and we discover some casualties as a consequence β no amphibians, but three squashed newts. We see one live amphibian as well, and the teenager is particularly pleased to see a harvestman, which dances in his palms. Yet in spite of the team's best efforts to show me a toad, the local population has clearly gone dormant for the colder months. It seems that I wouldn't have had any more luck anywhere else in the nation β all the patrol groups I reach out to explain that it's near-impossible at this season.
They project rescuing nearly 10,000 grown amphibians during migration
One email I get from another volunteer, who has kindly taken the trouble to look for toads in a noted location, considered the biggest tracked toad population in the UK, reaches me with the title: "None found." However, in February and March, he informs me, the group expects to help approximately 10,000 adult toads over the street.
Effectiveness and Limitations
What level of impact can these organizations truly achieve? "The reality that people are doing this regularly on cold, damp and unpleasant late nights is quite extraordinary," notes an expert. "That's something that very much should be celebrated." However, while toad patrols are able to slow the decline, they cannot prevent it entirely β not least because traffic is not the only threat.
Additional Threats
The climate crisis has resulted in longer periods of dry weather, which create the wrong conditions for some of the creatures that toads consume, such as invertebrates, while warmer ponds have caused an rise of blue-green algae, which can be toxic to toads. Warmer cold seasons also lead toads to wake up from their hibernation more often, interfering with the resource preservation crucial to their existence. Loss of environment β particularly the disappearance of big water bodies β is another menace.
Researchers are "always a bit worried about overemphasizing practical benefits on wildlife," however "There is a big value in just their presence." But toads play an important role in the food chain, consuming pretty much any small creatures or tiny organisms they can swallow and in turn feeding a number of predators, such as hedgehogs and otters. Enhancing situations for toads β ie building water habitats, conserving woodland and constructing amphibian passages β "we'll improve them for a whole bunch of other species."
Historical Importance
An additional motive to work to preserve toads around is their "historical significance," notes an specialist. Legends and tales around toads go back {centuries|hundred