Can the UK's Common Toads Survive from Roads and Population Collapse?
It's a Friday evening at half past seven, but instead of going out or watching a film, I've caught a train to a town in the countryside to join volunteers from a toad patrol. These committed people give up their nights to protect the native amphibian community.
A Worrying Decline in Population
The Bufo bufo is growing more uncommon. A latest research led by an wildlife conservation group showed that the UK toad population have dropped by half since the mid-1980s. Seeing a species that has been a fixture of the British countryside in decline is labeled "concerning" by researchers. Toads "don't need very specific conditions" and "should be able to live quite well in most of areas in Britain," 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 Danger from Traffic
Though the study didn't cover the causes for the decline, traffic is a major factor. Calculations indicate that 20 tons of toads are killed on UK roads annually – that is, hundreds of thousands. In contrast to frogs, which might be content to mate "with just a bucket of water," toads prefer big bodies of water. Their capacity to remain away from water for longer than frogs allows they can travel further to find them – often long distances. They tend to stick to their ancestral migration routes – it's common for adult toads to return to their natal pond to mate.
Breeding Patterns
Appropriately enough, the first toads start their journey for a partner around Valentine's day, but some move as far as spring, waiting until it gets night and moving through the night. During that period, toads start moving from wherever they have been hibernating "almost simultaneously."
One volunteer, who was raised in the region and has been trying to protect its toad population since he was a child, explains that "They've got just one focus: to go and mate." If their path happens to a street, they could be killed by traffic, and that mating period would be lost – preventing a new generation of toads from being born.
Toad Patrols Across the UK
Finding hundreds 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 officially listed with a countrywide program. These groups pick up toads and transport them over streets in containers, as well as recording the number of toads they find and advocating for other protection measures, 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 overlook groups of toadlets, 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 vehicles." 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.
Year-Round Work
Unlike many groups, a specific volunteer group, who are in their eighth season of functioning, go out throughout the year – not nightly, but whenever weather are damp, or if a member has reported about a amphibian spotting in their group chat. When I request to accompany them on duty, 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 group coordinator, pointing to her teenage child and the longtime volunteer. After for two hours without a glimpse of any amphibians, and now they have climbed over a barbed wire fence to inspect beneath some wood.
Community Involvement
The mother and son 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 mother started to look for things they could do together to help local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur explains – so when the team was seeking a fresh coordinator lately, she volunteered for the role.
The youth, too, has been instrumental in the group. A clip he created, imploring the local council to close a road through a nature reserve during breeding time, swung the decision the team's way. After a twelve months of lobbying, the council approved an "access-only" restriction between evening and morning from late winter through to April. The majority of motorists respected and avoided the route.
Other Wildlife and Challenges
Several cars go past when I'm out on duty and we find some victims as a consequence – no toads, but several crushed salamanders. We see one live amphibian as well, and the teenager is especially excited to see a daddy longlegs, which dances in his hands. Yet in spite of the team's best efforts to show me 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 receive from a different helper, who has generously made the effort to look for toads in a noted location, thought to be the biggest tracked toad group in the UK, reaches me with the title: "No toads." However, in February and March, he informs me, the group expects to help approximately ten thousand adult toads over the street.
Impact and Limitations
How much of a difference can these organizations truly achieve? "The reality that volunteers are doing this regularly on cold, damp and unpleasant late nights is remarkable," notes an expert. "That's something that very much deserves recognition." However, while rescue teams are able to slow the decline, they cannot prevent it entirely – not least because traffic is not the only threat.
Other Dangers
The climate crisis has resulted in extended spells of dry weather, which cause the poor environment for some of the animals that toads consume, such as worms and slugs, while higher water temperatures have caused an rise of toxic plants, which can be harmful to toads. Warmer cold seasons also cause toads to emerge from their hibernation more frequently, disrupting the resource preservation vital to their life cycle. Habitat destruction – especially the loss of big water bodies – is an additional threat.
Experts are "always a bit worried about overemphasizing practical benefits on wildlife," but "There is a big value in just having these animals around." But toads do have an significant part in the ecosystem, eating 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 – such as creating more ponds, conserving woodland and installing toad tunnels – "we'll improve them for a whole bunch of additional wildlife."
Cultural Importance
Another reason to try to keep toads around is their "historical significance," adds an expert. Myths and folklore around toads date back {centuries|hundred