Can the UK's Toads Survive from Traffic and Population Collapse?
It's Friday night at 7:30, but rather than heading to the pub or relaxing at home, I've caught a train to a market town in Wiltshire to join local helpers from a toad patrol. These dedicated individuals sacrifice their evenings to safeguard the local toad population.
A Worrying Decline in Population
The Bufo bufo is growing more rare. A recent research conducted by an amphibian and reptile charity showed that the British common toad numbers have almost halved since the mid-1980s. Seeing a species that has been a stalwart of the UK landscape in decline is labeled "worrying" by researchers. Toads "don't need very particular environments" and "should be able to live successfully in the majority of habitats in Britain," meaning if even they are not managing to survive, "it kind of suggests that the ecosystem is unbalanced."
Since 1985, Britain's toad numbers have nearly been cut in half
The Danger from Traffic
Though the research didn't cover the causes for the drop, traffic is a major factor. Estimates indicate that 20 tons of toads are killed on UK roads annually – in other words, several hundred thousand. In contrast to frogs, which would probably be happy to mate "if you left out a small container," toads prefer big bodies of water. Their ability to stay out of water for longer than frogs means they can travel further to find them – sometimes long distances. They usually follow their traditional paths – it's typical for adult toads to return to their birth pond to mate.
Migration Habits
Appropriately enough, the initial amphibians start their journey for a partner around February 14th, but some move as late as April, until it gets dark and travelling after sunset. During that time, toads begin migrating from wherever they have been hibernating "all pretty much at the same time."
A local helper, who grew up in the area and has been working to save its amphibians since he was a child, explains that "They've got just one focus: to go and have an orgy." If their route crosses a street, they could all get run over, and that mating period would never happen – stopping a new generation of toads from being produced.
Rescue Groups Throughout the UK
Seeing many of dead toads on nearby streets "resonates deeply with people," and has led to the creation of rescue teams throughout the UK – hundreds of organizations are currently registered with a countrywide program. These teams pick up toads and transport them across roads in buckets, as well as recording the number of toads they encounter and lobbying for other protection measures, such as blocked roads and underground wildlife tunnels.
Patrols usually work during the breeding period, when amphibian movements are frequent. However, this implies they can miss numbers of young toads, which, having been eggs and then juveniles, exit their ponds over an unpredictable schedule in late summer. Because of their size – just a couple of cm wide – "they can get obliterated by car traffic." And as being hit "essentially crushes them," it's more difficult to get data on them. At least when adult toads are killed, their carcasses can be tallied.
Annual Efforts
Unlike most patrols, a specific volunteer group, who are in their eighth year of operating, go out throughout the year – not every night, but whenever conditions are damp, or if someone has posted about a toad sighting in their messaging app. When I ask to join them on patrol, they admit it is "not a toady night" – winter dormancy has begun and it's been a dry day – but a few of the volunteers willingly accept to walk up and down their route with me and search for any toads. "If anyone can find any toads tonight, that pair will spot one," says the patrol manager, indicating her 14-year-old son and the longtime volunteer. After for two hours without a single toad sighting, and now they have climbed over a wire barrier to inspect beneath some wood.
Family Participation
The family duo became part of the patrol a while back. The youngster adores all things nature-related and has an ambition to become a conservationist, so his parent started to search for activities 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 lately, she decided to step up.
The teenager, too, has played an important role in the organization. A video he made, urging the local council to block a road through a nature reserve during breeding time, influenced the outcome the group's way. After a twelve months of lobbying, the authority approved an "restricted access" rule between 5pm and 5am from February through to April. The majority of motorists respected and avoided the road.
Other Wildlife and Difficulties
A few cars go past when I'm out on duty and we find some casualties as a consequence – no toads, but several crushed salamanders. We spot one living newt as well, and the teenager is especially excited to see a daddy longlegs, which dances in his hands. Yet despite the team's best efforts to let me see a toad, the local population has obviously 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 explain 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 kindly made the effort to check for toads in a famous site, thought to be the largest accurately monitored toad population in the UK, arrives in my inbox with the subject line: "None found." However, in February and March, he tells me, the group expects to help around 10,000 mature amphibians over the street.
Impact and Challenges
What level of impact can these groups truly achieve? "The reality that volunteers are performing this regularly on cold, damp and unpleasant evenings is quite extraordinary," notes an researcher. "That's something that very much deserves recognition." However, while toad patrols are able to slow the decline, they cannot prevent it entirely – not least because vehicles is just one danger.
Other Dangers
The global warming has meant longer periods of drought, which cause the wrong conditions for some of the creatures that toads eat, such as invertebrates, while warmer ponds have caused an rise of toxic plants, which can be toxic to toads. Warmer cold seasons also cause toads to wake up from their hibernation more frequently, disrupting the energy conservation vital to their existence. Habitat destruction – especially the disappearance of big water bodies – is another menace.
Researchers are "often concerned about putting too much of a utilitarian spin on wildlife," but "There is a big value in just their presence." But toads play an important role in the food chain, eating almost any invertebrates or small animals they can swallow and in turn feeding a variety of predators, such as hedgehogs and otters. Enhancing situations for toads – ie building water habitats, conserving woodland and constructing toad tunnels – "benefits for a whole bunch of other species."
Historical Significance
Another reason to work to preserve toads around is their "important cultural value," adds an specialist. Myths and folklore around toads go back {centuries|hundred