Can Britain's Common Toads Survive from Roads and Population Collapse?

It's a Friday evening at 7:30, but rather than heading to the pub or relaxing at home, I've caught a train to a town in Wiltshire to meet up with volunteers from a amphibian rescue group. These committed people give up their nights to protect the local toad population.

A Worrying Decline in Population

The common toad is becoming increasingly rare. A recent study led by an wildlife conservation group showed that the British common toad numbers have almost halved since 1985. Observing a species that has been a stalwart of the British countryside in decline is labeled "worrying" by experts. Toads "don't need very specific conditions" and "should be able to live quite well in most of areas in the UK," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

Toad populations across the UK have declined by almost 50% since the 1980s

The Danger from Roads

Though the study didn't cover the reasons for the decline, cars is a major factor. Calculations suggest that 20 tons of toads are crushed on UK roads every year – in other words, hundreds of thousands. Unlike frogs, which might be happy to mate "with just a small container," 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 hundreds of metres. They usually stick to their ancestral migration routes – it's common for adult toads to return to their natal pond to mate.

Migration Habits

Appropriately enough, the initial amphibians begin their quest for a partner around Valentine's day, but some move as far as April, until it gets night and moving through the night. During that time, toads begin migrating from where they have been overwintering "almost simultaneously."

One volunteer, who grew up in the region and has been working to save its amphibians since he was a boy, explains that "Their sole purpose: to go and mate." If their route happens to a road, they could all get run over, and that breeding season would never happen – stopping a new generation of toads from being produced.

Toad Patrols Throughout the UK

Seeing many of dead toads on local roads "resonates deeply with people," and has resulted in the formation of rescue teams across the UK – 274 groups are officially listed with a countrywide program. These teams pick up toads and carry them over streets in buckets, as well as counting the number of toads they find and lobbying for other safety solutions, such as blocked roads and underground wildlife tunnels.

Patrols tend to operate during the breeding period, when toad crossings are more regular. However, this implies they can overlook groups of young toads, which, having been spawn and then juveniles, exit their ponds over an irregular timetable in late 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 tallied.

Annual Efforts

In contrast to most patrols, a specific volunteer group, who are in their eighth season of functioning, go out throughout the year – not nightly, but when weather are warm and wet, or if a member has posted about a amphibian spotting in their group chat. When I request to accompany them on duty, they concede it is "not ideal conditions" – winter dormancy has started and it's been a dry day – but several of the volunteers gamely agree to patrol their area with me and search for any toads. "Should anyone can find any toads tonight, that pair will spot one," says the group coordinator, pointing to her 14-year-old son and the experienced member. We've been out for two hours without a glimpse of any amphibians, and now they have scaled a barbed wire fence to inspect beneath some logs.

Community Involvement

The mother and son became part of the patrol a while back. The youngster adores all things wildlife and has an goal to become a conservationist, so his parent started to look for activities they could do together 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 looking for a fresh coordinator lately, she decided to step up.

The youth, too, has played an important role in the group. A video he made, imploring 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 campaigning, the council agreed to an "restricted access" rule between evening and morning from late winter through to April. Most drivers duly avoided the route.

Other Wildlife and Challenges

A few vehicles go by when I'm out on duty and we discover some victims as a result – no toads, but three squashed newts. We spot one living newt as well, and the youngster is particularly pleased to see a harvestman, which dances in his palms. Yet in spite of the team's best efforts to let me see a toad, the native community has obviously settled down for the winter. It seems that I couldn't have found any better success elsewhere in the country – all the rescue teams I contact clarify 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 get from another volunteer, who has kindly made the effort to check for toads in a famous site, thought to be the largest accurately monitored toad group in the UK, reaches me with the title: "None found." However, in late winter, he tells me, the team expects to help around 10,000 adult toads across the road.

Impact and Limitations

How much of a difference can these groups actually make? "The fact that people 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 – not least because traffic is not the only threat.

Other Dangers

The climate crisis has meant longer periods of dry weather, which cause the wrong conditions for some of the animals that toads consume, such as invertebrates, while higher water temperatures have led to an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to emerge from their dormancy more often, interfering with the energy conservation crucial to their life cycle. Loss of environment – particularly the loss of large ponds – is another menace.

Researchers are "often concerned 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 tiny organisms they can fit in their mouths and in turn feeding a number of birds and mammals, such as hedgehogs and otters. Improving conditions for toads – ie building water habitats, conserving woodland and constructing toad tunnels – "benefits for a whole bunch of other species."

Cultural Importance

An additional motive to work to preserve toads around is their "historical significance," adds an expert. Myths and folklore around toads go back {centuries|hundred

Jeremy White
Jeremy White

Lena is a seasoned sports analyst with a passion for data-driven betting strategies and helping others make informed wagers.