Will the UK's Toads Survive from Traffic and Population Collapse?
It is a Friday evening at 7:30, but instead of heading to the pub or relaxing at home, I've caught a train to a town in the countryside to meet up with volunteers from a toad patrol. These dedicated individuals sacrifice their evenings to safeguard the local toad population.
An Alarming Decline in Population
The common toad is becoming increasingly rare. A latest study conducted by an amphibian and reptile charity showed that the UK toad population have almost halved since the mid-1980s. Seeing a creature that has been a fixture of the UK landscape in decrease is described as "concerning" by experts. Toads "don't need very particular environments" and "should be able to live quite well in the majority of habitats in Britain," so if even they are not managing to survive, "it kind of suggests that things are not as they should be."
The UK toad population has almost halved since 1985
The Danger from Traffic
Though the study didn't examine the causes for the drop, traffic is a major factor. Calculations indicate that 20 tons of toads are crushed on UK roads annually – in other words, several hundred thousand. Unlike frogs, which would probably be content to mate "with just a small container," toads prefer big bodies of water. Their capacity to remain away from water for more time than frogs allows they can travel further to reach them – often long distances. They usually stick to their traditional paths – it's common for mature amphibians to go back to their birth pond to mate.
Breeding Patterns
Appropriately enough, the initial amphibians start their journey for a partner around February 14th, but others travel as far as spring, waiting until it gets night and moving after sunset. During that time, toads start moving from where they have been overwintering "all pretty much at the same time."
A local helper, who was raised in the region and has been working to save its amphibians since he was a child, notes that "Their sole purpose: to go and mate." If their route crosses a road, they could all get run over, and that mating period would never happen – preventing a new generation of toads from being born.
Toad Patrols Throughout the United Kingdom
Seeing many of dead toads on local roads "inherently strikes a chord with people," and has led to the creation of rescue teams across the UK – hundreds of organizations are officially listed with a national initiative. These teams collect toads and carry them across roads in containers, as well as counting the number of toads they find and advocating for other safety solutions, such as road closures and amphibian passages.
Volunteers 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 tadpoles, leave their water habitats over an irregular timetable in late summer. Because of their small stature – just one or two centimetres wide – "they are destroyed by vehicles." And as being run over "essentially crushes them," it's harder to get data on them. At least when mature amphibians are lost, their carcasses can be tallied.
Annual Efforts
Unlike most patrols, a specific volunteer group, 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 posted about a amphibian spotting in their group chat. When I request to accompany them on patrol, they admit it is "not a toady night" – winter dormancy has started and it's been a dry day – but several of the volunteers willingly accept to patrol their route with me and see what we can find. "If anyone can find any toads tonight, those two will spot one," says the group coordinator, indicating 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 climbed over a barbed wire fence to check under some wood.
Community Involvement
The family duo joined 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 together to protect local wildlife. Now she loves it as much as he does, the 41-year-old small business owner tells me – so when the group was seeking a new manager recently, she decided to step up.
The teenager, too, has been instrumental in the group. A clip he made, urging the municipal authority to block a road through a protected area during migration season, influenced the outcome the group's way. After a year of campaigning, the council agreed to an "restricted access" restriction between 5pm and 5am from February through to spring. Most drivers respected and avoided the route.
Other Wildlife and Difficulties
Several vehicles go by when I'm out on patrol and we discover some casualties as a consequence – no toads, but three squashed newts. We spot one living newt as well, and the youngster is particularly pleased to see a daddy longlegs, which dances in his palms. Yet despite 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 wouldn't have had any more luck elsewhere in the country – all the patrol groups I contact clarify that it's very difficult at this season.
They project rescuing nearly 10,000 grown amphibians during migration
A message I get from a different helper, who has generously taken the trouble to check for toads in a famous site, considered the biggest tracked toad population in the UK, reaches me with the title: "None found." However, in late winter, he informs me, the team expects to help around ten thousand mature amphibians across the road.
Effectiveness and Limitations
What level of impact can these groups truly achieve? "The reality that volunteers are performing this regularly on chilly, wet and miserable evenings is remarkable," says 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 just one danger.
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 invertebrates, while warmer ponds have caused an increase of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to emerge from their dormancy more frequently, interfering with the energy conservation crucial to their life cycle. Habitat destruction – especially the disappearance of big water bodies – is an additional threat.
Experts are "often concerned about putting too much of a utilitarian spin on biodiversity," but "There is a big value in just their presence." But toads do have an important role in the ecosystem, eating almost any invertebrates or tiny organisms they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as wildlife. Improving situations for toads – such as building water habitats, protecting forests and installing toad tunnels – "benefits for a wide range of other species."
Cultural Importance
An additional motive to work to preserve toads around is their "important cultural value," notes an expert. Myths and folklore around toads date back {centuries|hundred