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

It is a Friday evening at 7:30, but instead of going out or relaxing at home, I've taken a train to a market town in Wiltshire to join local helpers from a amphibian rescue group. These committed people give up their nights to safeguard the native amphibian community.

A Worrying Decline in Numbers

The Bufo bufo is becoming increasingly rare. A recent study led by an amphibian and reptile charity revealed that the British common toad numbers have almost halved since the mid-1980s. Observing a creature that has been a stalwart of the British countryside in decrease is described as "concerning" by researchers. Toads "don't need very particular environments" and "ought to live quite well in most of habitats in the UK," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."

The UK toad population has almost halved since 1985

The Danger from Roads

Though the research didn't cover the reasons for the decline, traffic is a major factor. Calculations suggest that 20 tonnes of toads are crushed on UK roads every year – that is, hundreds of thousands. Unlike frogs, which might be content to mate "with just a bucket of water," toads favor big bodies of water. Their ability to remain away from water for longer than frogs means they can journey farther to reach them – often hundreds of metres. They tend to follow their ancestral migration routes – it's typical for mature amphibians to go back to their natal pond to mate.

Migration Patterns

Fittingly, the first toads start their journey for a partner around Valentine's day, but some move as late as spring, until it gets dark and moving after sunset. During that period, toads begin migrating from wherever they have been hibernating "all pretty much at the same time."

A local helper, who was raised in the region and has been trying to protect its amphibians since he was a boy, explains that "They've got just one focus: to go and mate." If their path crosses a road, they could be killed by traffic, and that breeding season would be lost – stopping a new generation of toads from being born.

Rescue Groups Across the UK

Seeing 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 teams pick up toads and transport them over streets in buckets, as well as counting the number of toads they encounter and advocating for other safety solutions, such as road closures and amphibian passages.

Volunteers usually work during the migration season, when amphibian movements are more regular. However, this implies they can miss numbers of toadlets, which, having been eggs and then tadpoles, exit their ponds over an unpredictable schedule in the end of summer. Because of their small stature – just one or two centimetres wide – "they are destroyed by car traffic." And as being run over "essentially crushes them," it's more difficult to get data on them. At least when adult toads are killed, their remains can be tallied.

Annual Work

Unlike most patrols, one local team, who are in their eighth year of operating, go out year-round – not every night, but when weather are warm and wet, or if someone has reported about a amphibian spotting in their group chat. When I ask to join them on patrol, they concede it is "not a toady night" – toad hibernation season has started and it's been a arid period – but several of the volunteers willingly accept to walk up and down their area with me and search for any toads. "Should anyone can find any toads tonight, those two will find one," says the group coordinator, pointing to her 14-year-old son and the experienced member. After for two hours without a glimpse of any amphibians, and now they have scaled a barbed wire fence to inspect beneath some wood.

Community Involvement

The family duo joined the group a while back. The teenager loves all things nature-related and has an goal to become a environmentalist, so his parent started to search for things they could do together to help native animals. Now she enjoys it as much as he does, the middle-aged small business owner explains – so when the team was looking for a fresh coordinator recently, she volunteered for the role.

The teenager, too, has been instrumental in the group. A clip he created, urging the local council to close a road through a nature reserve during breeding time, swung the decision the group's way. After a twelve months of lobbying, the authority agreed to an "access-only" restriction between 5pm and 5am from late winter through to April. The majority of motorists respected and avoided the route.

Additional Species and Challenges

A few vehicles go by when I'm out on patrol and we find some casualties as a consequence – no toads, but three squashed newts. We see one living newt as well, and the youngster is especially excited to see a harvestman, which dances in his hands. Yet in spite of the team's hardest attempts to show me a toad, the local population has clearly settled down for the colder months. It seems that I couldn't have found any more luck anywhere else in the nation – 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

One email I get from a different helper, who has kindly made the effort to check for toads in a famous site, thought to be the biggest tracked toad population in the UK, reaches me with the title: "No toads." However, in late winter, he tells me, the team expects to help around ten thousand adult toads across the road.

Effectiveness and Challenges

How much of a difference can these organizations actually make? "The fact that people are performing this regularly on cold, damp and unpleasant late nights is remarkable," notes an expert. "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 – not least because traffic is not the only threat.

Other Dangers

The global warming has meant longer periods of dry weather, which create the poor environment for some of the creatures that toads consume, such as worms and slugs, while warmer ponds have caused an increase of toxic plants, which can be toxic to toads. Warmer cold seasons also cause toads to wake up from their dormancy more often, interfering with the energy conservation vital to their life cycle. Habitat destruction – particularly the loss of big water bodies – is an additional threat.

Experts are "always a bit worried about overemphasizing practical benefits on biodiversity," however "There is a big value in just having these animals around." But toads play an significant part in the ecosystem, consuming pretty much any invertebrates or small animals they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as hedgehogs and otters. Improving situations for toads – ie creating more ponds, protecting forests and constructing toad tunnels – "we'll improve them for a wide range of additional wildlife."

Historical Significance

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