Will Britain's Toads Survive from Roads and Terrible Decline?

It is a Friday evening at half past seven, but instead of 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 toad patrol. These committed people give up their nights to protect the local toad population.

A Worrying Drop in Numbers

The Bufo bufo is growing more uncommon. A latest study conducted by an amphibian and reptile charity showed that the UK toad population have dropped by half since 1985. Seeing a creature that has been a stalwart of the British countryside in decline is labeled "concerning" by experts. Toads "don't need very specific conditions" and "should be able to live successfully in the majority of habitats in Britain," so if even they are struggling to persist, "it kind of suggests that the ecosystem is unbalanced."

The UK toad population has almost halved since 1985

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 – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "if you left out a bucket of water," toads favor large ponds. Their ability to remain away from water for more time than frogs means they can travel further to find them – often long distances. They tend to stick to their traditional paths – it's common for mature amphibians to go back to their natal pond to mate.

Migration Habits

Fittingly, the initial amphibians begin their quest for a mate around February 14th, but others travel as late as spring, waiting until it gets dark 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 area and has been working to save its toad population since he was a child, explains that "They've got just one focus: to go and mate." If their route happens to a road, they could all get run over, and that breeding season would be lost – stopping a next generation of toads from being born.

Toad Patrols Across the UK

Finding many of dead toads on local roads "resonates deeply with people," and has resulted in the formation of rescue teams throughout the UK – hundreds of organizations are currently registered with a countrywide program. These groups pick up toads and carry them across roads in containers, as well as recording the number of toads they encounter and advocating for other protection measures, such as road closures and amphibian passages.

Patrols usually work during the migration season, when toad crossings are frequent. However, this means they can miss numbers of young toads, which, having been eggs and then tadpoles, leave their water habitats over an unpredictable schedule in late summer. Because of their small stature – just a couple of cm wide – "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 tallied.

Annual Efforts

In contrast to most patrols, one local team, who are in their eighth season 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 group chat. When I ask to join them on patrol, they admit it is "not ideal conditions" – winter dormancy has begun and it's been a dry day – but a few of the volunteers gamely agree to patrol their area with me and see what we can find. "Should anyone can locate any toads tonight, that pair will spot one," says the group coordinator, pointing to her teenage child and the experienced member. After for 120 minutes without a glimpse of any amphibians, and now they have climbed over a wire barrier to inspect beneath some wood.

Family Participation

The mother and son became part of the patrol a while back. The youngster adores all things nature-related and has an goal to become a environmentalist, so his mother started to look for activities they could do together to protect local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur explains – so when the group was seeking a fresh coordinator lately, she decided to step up.

The youth, too, has been instrumental in the organization. A clip he made, imploring the municipal authority to close a road through a protected area during breeding time, influenced the outcome the team's way. After a year of lobbying, the authority approved an "restricted access" restriction between 5pm and 5am from February through to spring. Most drivers duly avoided the route.

Additional Species and Challenges

Several vehicles go by when I'm out on duty and we discover some casualties as a consequence – no amphibians, but several crushed salamanders. We see one live amphibian as well, and the teenager is particularly pleased to see a daddy longlegs, which dances in his hands. Yet in spite of the group's best efforts to let me see a toad, the local population has obviously gone dormant for the colder months. It appears that I couldn't have found any better success anywhere else in the country – all the rescue teams I contact clarify that it's near-impossible at this time of year.

They project rescuing nearly 10,000 grown amphibians during migration

A message I receive from a different helper, who has generously made the effort to check for toads in a noted location, thought to be the largest accurately monitored toad group in the UK, arrives in my inbox with the subject line: "No toads." However, in February and March, he tells me, the team plans to assist around 10,000 adult toads over the street.

Impact and Challenges

What level of impact can these groups truly achieve? "The reality that volunteers are doing this regularly on chilly, wet and miserable late nights is quite extraordinary," says an expert. "That's something that very much should be celebrated." However, while rescue teams are able to slow the decline, they cannot prevent it entirely – not least because traffic is not the only threat.

Other Dangers

The global warming has resulted in extended spells of dry weather, which create the poor environment for some of the animals that toads eat, such as worms and slugs, while higher water temperatures have caused an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also cause toads to emerge from their hibernation more frequently, disrupting the resource preservation crucial to their life cycle. Habitat destruction – especially the loss of big water bodies – is an additional threat.

Researchers are "always a bit worried about putting too much of a utilitarian spin on biodiversity," however "There is a big value in just their presence." But toads do have an important role in the ecosystem, eating almost any invertebrates or small animals they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as wildlife. Improving conditions for toads – such as building water habitats, protecting forests and constructing amphibian passages – "we'll improve them for a whole bunch of additional wildlife."

Cultural Importance

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

Daniel Ware
Daniel Ware

Elara Vance is a tech journalist with over a decade of experience covering emerging technologies and consumer electronics.