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It's a Friday evening at half past seven, but rather than going out or watching a film, I've taken a train to a market town in Wiltshire to meet up with local helpers from a toad patrol. These dedicated individuals give up their nights to safeguard the native amphibian community.

An Alarming Decline in Numbers

The Bufo bufo is growing more uncommon. A latest study conducted by an wildlife conservation group revealed that the British common toad numbers have dropped by half since the mid-1980s. Seeing a species that has been a fixture of the UK landscape in decline is described as "worrying" by experts. Toads "don't need very specific conditions" and "should be able to live quite well in most of habitats in Britain," so if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

The UK toad population has almost halved since 1985

The Threat from Traffic

Though the research didn't examine the reasons for the decline, traffic is a major factor. Calculations indicate that 20 tonnes of toads are killed on British roads every year – in other words, several hundred thousand. In contrast to frogs, which might be content to mate "with just a small container," 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 – often long distances. They usually stick to their traditional paths – it's typical for mature amphibians to return to their natal pond to mate.

Breeding Habits

Fittingly, the initial amphibians begin their quest for a mate around Valentine's day, but others travel as late as spring, waiting until it gets dark and moving after sunset. During that time, toads start moving from wherever they have been overwintering "almost simultaneously."

One volunteer, who was raised in the area and has been working to save its amphibians since he was a boy, explains that "Their sole purpose: to go and mate." If their path 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.

Rescue Groups Throughout the United Kingdom

Finding hundreds of toad carcasses on nearby streets "resonates deeply with people," and has led to the formation of rescue teams across the UK – hundreds of organizations are officially listed with a countrywide program. These groups collect toads and carry them over streets in containers, as well as recording the number of toads they encounter and lobbying for other safety solutions, such as blocked roads and underground wildlife tunnels.

Volunteers tend to operate during the migration season, when toad crossings are frequent. However, this implies they can overlook groups of young toads, which, having existed as eggs and then juveniles, leave their water habitats over an irregular timetable in the end of summer. Because of their size – just a couple of cm wide – "they are destroyed by car traffic." And as being hit "basically turns them into mush," it's more difficult to get data on them. At least when adult toads are killed, their remains can be tallied.

Year-Round Work

In contrast to many groups, one local team, who are in their eighth season of functioning, go out throughout the year – not every night, but whenever weather are damp, or if a member has reported about a toad sighting in their group chat. When I ask to join them on patrol, they admit it is "not ideal conditions" – toad hibernation season has begun and it's been a dry day – but a few of the volunteers gamely agree to walk up and down their area with me and see what we can find. "If anyone can locate any toads tonight, that pair will spot one," says the patrol manager, pointing to her 14-year-old son and the longtime volunteer. We've been out for two hours without a glimpse of any amphibians, and now they have scaled a barbed wire fence to check under some wood.

Community Participation

The family duo became part of the patrol a while back. The teenager adores all things nature-related and has an goal to become a conservationist, so his parent started to search for things they could do jointly to help local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur tells me – so when the group was seeking a new manager lately, she volunteered for the role.

The youth, too, has been instrumental in the organization. A clip he made, urging the municipal authority to close a street through a protected area during migration season, swung the decision the team's way. After a year of lobbying, the council approved an "access-only" restriction between 5pm and 5am from February through to April. The majority of motorists respected and avoided the route.

Additional Species and Difficulties

A few vehicles go past when I'm out on duty and we discover some victims as a consequence – no amphibians, but three squashed newts. We spot one living newt as well, and the teenager is particularly pleased to see a daddy longlegs, which dances in his hands. Yet in spite of the team's best efforts to let me see a toad, the local population has clearly gone dormant for the colder months. It seems that I wouldn't have had any more luck elsewhere in the nation – all the rescue teams I contact clarify that it's near-impossible at this season.

This team anticipates assisting around ten thousand mature toads over the street

One email I get from another volunteer, who has generously 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 subject line: "No toads." However, in late winter, he informs me, the team expects to help approximately 10,000 mature amphibians across the road.

Impact and Limitations

What level of impact can these groups actually make? "The fact that volunteers are performing this consistently on cold, damp and unpleasant evenings is quite extraordinary," notes an researcher. "That's something that very much should be celebrated." However, while rescue teams are able to slow the decline, they can't stop it completely – partly since traffic is just one danger.

Additional Threats

The global warming has resulted in longer periods of dry weather, which cause the poor environment for some of the animals that toads eat, such as invertebrates, while higher water temperatures have caused an increase of blue-green algae, which can be toxic to toads. Milder winters also cause toads to emerge from their hibernation more frequently, disrupting the energy conservation crucial to their existence. Loss of environment – especially the disappearance of big water bodies – is another menace.

Experts are "always a bit worried about overemphasizing practical benefits on biodiversity," but "There is a big value in just their presence." But toads play an significant part in the food chain, consuming almost any invertebrates or tiny organisms they can fit in their mouths and in turn sustaining a variety of predators, such as wildlife. Improving conditions for toads – such as creating more ponds, conserving woodland and constructing toad tunnels – "we'll improve them for a whole bunch of additional wildlife."

Historical Significance

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