Will the UK's Toads Survive from Traffic and Population Collapse?
It's Friday evening at 7:30, but rather than going out or watching a film, I've caught a train to a town in the countryside to meet up with local helpers from a toad patrol. These dedicated individuals sacrifice their nights to safeguard the local toad population.
An Alarming Drop in Population
The Bufo bufo is becoming increasingly rare. A recent research conducted by an wildlife conservation group showed that the UK toad population have almost halved since the mid-1980s. Seeing a species that has been a fixture of the UK landscape in decline is described as "concerning" by experts. Toads "don't need very specific conditions" and "ought to live successfully in the majority of habitats in Britain," meaning if even they are struggling to persist, "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 cover the reasons for the drop, cars certainly plays a part. Estimates indicate that 20 tonnes of toads are killed on UK roads annually – that is, hundreds of thousands. Unlike frogs, which would probably be content to mate "if you left out a bucket of water," toads favor large ponds. Their ability to stay out of water for longer than frogs means they can journey farther to reach them – often hundreds of metres. They usually follow their traditional paths – 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, until it gets night and moving after sunset. During that time, toads begin migrating from where they have been hibernating "almost simultaneously."
A local helper, who grew up in the area and has been working to save its amphibians since he was a boy, notes that "Their sole purpose: to go and have an orgy." If their route 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 United Kingdom
Finding many of toad carcasses on nearby streets "resonates deeply with people," and has led to the formation of toad patrols throughout the UK – 274 groups are currently registered with a national initiative. These teams collect toads and transport them over streets in containers, as well as counting the number of toads they find and lobbying for other protection measures, such as blocked roads and amphibian passages.
Patrols tend to operate during the breeding period, when toad crossings are more regular. However, this implies they can overlook numbers of young toads, which, having existed as eggs and then juveniles, exit their water habitats over an irregular timetable in late summer. Because of their size – just one or two centimetres wide – "they are destroyed by vehicles." And as being run over "basically turns them into mush," it's harder to get data on them. At least when mature amphibians are lost, their carcasses can be counted.
Year-Round Work
Unlike many groups, a specific volunteer group, who are in their eighth year of operating, go out year-round – not every night, but whenever conditions are damp, or if someone has posted about a amphibian spotting in their messaging app. When I request to accompany them on duty, they admit it is "not a toady night" – toad hibernation season has begun and it's been a dry day – but a few of the helpers gamely agree to walk up and down their area with me and see what we can find. "Should anyone can locate any toads tonight, that pair will spot one," says the patrol manager, pointing to her 14-year-old son 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 inspect beneath some logs.
Community Participation
The mother and son became part of the group a year and a half ago. The teenager adores all things nature-related and has an ambition to become a environmentalist, so his parent started to search for things they could do together to protect local wildlife. Now she loves it as much as he does, the middle-aged entrepreneur tells me – so when the team was looking for a fresh coordinator recently, she decided to step up.
The youth, too, has been instrumental in the organization. A clip he created, urging the municipal authority to close a street through a nature reserve during migration season, influenced the outcome the group's way. After a year of lobbying, the council approved an "access-only" rule between evening and morning from late winter through to spring. Most drivers duly avoided the road.
Additional Species and Difficulties
Several vehicles go past when I'm out on patrol and we find some victims as a result – no amphibians, but three squashed newts. We spot one live amphibian as well, and the teenager is particularly pleased to see a daddy longlegs, which moves in his hands. Yet despite the group's hardest attempts to show me a toad, the native community has clearly settled down for the colder months. It seems that I wouldn't have had any more luck anywhere else in the country – all the patrol groups I contact clarify that it's near-impossible at this time of year.
The group expects to help approximately 10,000 adult toads across the road
A message I receive from another volunteer, who has kindly taken the trouble to check for toads in a noted location, considered the largest accurately monitored toad population in the UK, arrives in my inbox with the subject line: "No toads." However, in late winter, he informs me, the group plans to assist approximately 10,000 mature amphibians over the street.
Impact and Limitations
What level of impact can these organizations truly achieve? "The fact that volunteers are performing this regularly on cold, damp and unpleasant evenings is quite extraordinary," notes an expert. "This effort that very much should be celebrated." However, while toad patrols are able to slow the decline, they can't stop it completely – partly since traffic is not the only threat.
Other Dangers
The climate crisis has resulted in extended spells of drought, which create the wrong conditions for some of the animals that toads consume, such as worms and slugs, while higher water temperatures have led to an rise of blue-green algae, which can be harmful to toads. Milder winters also cause toads to wake up from their dormancy more often, interfering with the resource preservation crucial to their life cycle. Habitat destruction – particularly the loss of big water bodies – is another menace.
Researchers are "always a bit worried about overemphasizing practical benefits on wildlife," however "It's important in just their presence." But toads play an significant part in the ecosystem, eating almost any small creatures or tiny organisms they can swallow and in turn feeding a number of predators, such as wildlife. Improving conditions for toads – ie creating more ponds, conserving woodland and installing toad tunnels – "we'll improve them for a whole bunch of other species."
Historical Significance
Another reason to try to keep toads present is their "historical significance," adds an expert. Legends and tales around toads date back {centuries|hundred