Can Britain's Common Toads Be Saved from Traffic and Terrible Decline?
It is Friday night at half past seven, but rather than going out or relaxing at home, I've taken a train to a town in Wiltshire to meet up with local helpers from a toad patrol. These committed people sacrifice their evenings to safeguard the local toad population.
A Worrying Decline in Population
The Bufo bufo is becoming increasingly uncommon. A recent research led by an amphibian and reptile charity revealed that the UK toad population have almost halved since the mid-1980s. Seeing a creature that has been a stalwart of the British countryside in decline is described as "concerning" by researchers. Toads "don't require very particular environments" and "ought to live successfully in most of areas in the UK," so if even they are not managing to survive, "it indicates that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Threat from Roads
Though the study didn't examine the causes for the decline, traffic is a major factor. Calculations suggest that 20 tons of toads are crushed on UK roads every year – in other words, several hundred thousand. Unlike frogs, which might be happy to mate "with just a small container," toads favor big bodies of water. Their ability to remain away from water for more time than frogs means they can travel further to find them – often hundreds of metres. They tend to follow their ancestral migration routes – it's typical for adult toads to go back to their natal pond to mate.
Breeding Habits
Appropriately enough, the first toads start their journey for a partner around Valentine's day, but others travel as far as spring, waiting until it gets night and moving through the night. During that time, toads start moving from where they have been overwintering "almost simultaneously."
One volunteer, who was raised in the region and has been working to save its toad population since he was a boy, notes 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 never happen – preventing a new generation of toads from being produced.
Rescue Groups Throughout the UK
Seeing many of toad carcasses on local roads "resonates deeply with people," and has resulted in the creation of rescue teams across the UK – hundreds of organizations are officially listed with a countrywide program. These teams pick up toads and carry them over streets in containers, as well as counting the quantity of toads they encounter and lobbying for other safety solutions, such as road closures and amphibian passages.
Volunteers usually work during the breeding period, when amphibian movements are more regular. However, this means they can overlook groups of young toads, which, having existed as spawn and then juveniles, exit their water habitats over an irregular timetable in late summer. Because of their size – just a couple of cm wide – "they can get obliterated 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 carcasses can be counted.
Annual Efforts
In contrast to many groups, one local team, who are in their eighth year of operating, go out year-round – not nightly, but whenever conditions are damp, or if someone has reported about a amphibian spotting in their group chat. When I request to accompany them on duty, they concede it is "not ideal conditions" – toad hibernation season has started and it's been a dry day – but a few of the volunteers gamely agree to patrol their route with me and see what we can find. "Should anyone can locate any toads tonight, those two will find one," says the group coordinator, pointing to her 14-year-old son and the longtime volunteer. After for 120 minutes without a glimpse of any amphibians, and now they have scaled a wire barrier to inspect beneath some wood.
Family Involvement
The family duo joined the group a year and a half ago. The teenager loves all things nature-related and has an goal to become a environmentalist, so his parent 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 new manager recently, she volunteered for the role.
The teenager, too, has played an important role in the group. A clip he made, imploring the municipal authority to close a street through a nature reserve during breeding time, influenced the outcome the team's way. After a twelve months of lobbying, the council agreed to an "access-only" rule between evening and morning from late winter through to spring. Most drivers respected and avoided the route.
Additional Species and Challenges
A few cars go by when I'm out on duty and we find some victims as a consequence – no amphibians, but several crushed salamanders. We see one live amphibian as well, and the youngster 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 native community has obviously settled down for the winter. It appears that I wouldn't have had any better success anywhere else in the country – all the rescue teams I reach out to explain that it's very difficult at this time of year.
The group expects to help approximately 10,000 adult toads across the road
One email I get from another volunteer, who has kindly made the effort to look 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 late winter, he informs me, the group expects to help around ten thousand mature amphibians across the road.
Impact and Challenges
How much of a difference can these organizations actually make? "The reality that people are doing this regularly 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 – not least because traffic is just one danger.
Other Dangers
The climate crisis has resulted in longer periods of dry weather, which cause the wrong conditions for some of the animals that toads consume, such as worms and slugs, while warmer ponds have led to an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also cause toads to wake up from their hibernation more often, interfering with the energy conservation vital to their existence. Loss of environment – particularly the disappearance of big water bodies – is an additional threat.
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 significant part in the ecosystem, consuming almost any invertebrates or small animals they can fit in their mouths and in turn feeding a number of birds and mammals, such as wildlife. Improving conditions for toads – such as creating more ponds, protecting forests and installing amphibian passages – "benefits for a wide range of additional wildlife."
Historical Importance
Another reason to try to keep toads around is their "important cultural value," notes an expert. Legends and tales around toads date back {centuries|hundred