Can the UK's Toads Survive from Traffic and Terrible Decline?
It is a Friday night at half past seven, but instead of going out or relaxing at home, I've taken a train to a town in the countryside to meet up with local helpers from a amphibian rescue group. These committed people sacrifice their evenings to safeguard the native amphibian community.
A Worrying Decline in Population
The Bufo bufo is becoming increasingly uncommon. A latest study conducted by an amphibian and reptile charity revealed that the British common toad numbers have almost halved since 1985. Observing a species that has been a fixture of the UK landscape in decline is described as "concerning" by experts. Toads "don't need very particular environments" and "should be able to live quite well in most of areas in the UK," so if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."
Since 1985, Britain's toad numbers have nearly been cut in half
The Threat from Traffic
Though the research didn't cover the reasons for the drop, cars certainly plays a part. Calculations indicate that 20 tons of toads are killed on British roads annually – that is, several hundred thousand. In contrast to frogs, which might be happy to mate "with just a bucket of water," toads prefer large ponds. 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 stick to their ancestral migration routes – it's typical for adult toads to return to their natal pond to mate.
Migration Habits
Appropriately enough, the first toads start their journey for a mate around Valentine's day, but others travel as late as spring, until it gets night and moving after sunset. During that period, toads start moving from wherever they have been hibernating "almost simultaneously."
A local helper, who grew up in the region and has been working to save its toad population since he was a child, notes that "They've got just one focus: to go and mate." If their route happens to a road, they could all get run over, and that mating period would be lost – stopping a new generation of toads from being produced.
Rescue Groups Throughout the United Kingdom
Seeing many of toad carcasses on local roads "resonates deeply with people," and has resulted in the creation of toad patrols throughout the UK – hundreds of organizations are currently registered with a countrywide program. These teams collect toads and transport them over streets in buckets, as well as counting the quantity of toads they find and advocating for other safety solutions, such as blocked roads and amphibian passages.
Patrols usually work during the breeding period, when toad crossings are frequent. However, this implies they can miss groups of toadlets, which, having existed as spawn and then juveniles, exit their ponds over an unpredictable schedule in the end of summer. Because of their small stature – just a couple of cm wide – "they can get obliterated by car traffic." And as being run over "essentially crushes them," it's harder to get data on them. At least when adult toads are killed, their carcasses can be counted.
Year-Round Work
Unlike many groups, a specific volunteer group, who are in their eighth season of operating, go out throughout the year – not nightly, but whenever weather are damp, or if someone has reported about a toad sighting in their group chat. When I request to accompany them on duty, they concede it is "not ideal conditions" – winter dormancy has started and it's been a dry day – but several of the volunteers gamely agree to walk up and down their area with me and search for any toads. "Should anyone can find any toads tonight, that pair will spot one," says the group coordinator, pointing to her 14-year-old son and the longtime volunteer. After for 120 minutes without a single toad sighting, and now they have climbed over a barbed wire fence to check under some wood.
Community Involvement
The mother and son became part of the group a while back. The youngster loves all things wildlife and has an ambition to become a conservationist, so his mother started to search for activities they could do jointly to help local wildlife. Now she enjoys it as much as he does, the 41-year-old entrepreneur tells me – so when the team was looking for a new manager lately, she decided to step up.
The teenager, too, has played an important role in the organization. A clip he made, imploring the local council to close a street through a nature reserve during migration season, influenced the outcome the group's way. After a year of lobbying, the authority approved an "restricted access" restriction between evening and morning from late winter through to April. Most drivers respected and avoided the route.
Additional Species and Difficulties
A few vehicles go by when I'm out on patrol and we find some casualties as a result – no toads, but several crushed salamanders. We spot one living newt as well, and the teenager is particularly pleased to see a harvestman, which moves in his palms. Yet despite the team's best efforts to show me a toad, the native community has obviously gone dormant for the colder months. It seems that I wouldn't have had any more luck anywhere else in the country – all the rescue teams I reach out to explain that it's near-impossible at this time of year.
They project rescuing nearly 10,000 grown amphibians during migration
One email I get from a different helper, who has generously made the effort to look for toads in a noted location, considered the biggest tracked toad group in the UK, reaches me with the title: "No toads." However, in February and March, 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 fact that volunteers are performing this consistently on cold, damp and unpleasant evenings is quite extraordinary," says an researcher. "This effort that very much should be celebrated." However, while toad patrols are able to reduce the drop, they cannot prevent it entirely – partly since vehicles is just one danger.
Other Dangers
The climate crisis has meant extended spells of drought, which create the poor environment for some of the creatures that toads eat, such as worms and slugs, while higher water temperatures have caused an increase of blue-green algae, which can be toxic to toads. Warmer cold seasons also lead toads to wake up from their hibernation more frequently, disrupting the energy conservation crucial to their life cycle. Loss of environment – especially the disappearance of big water bodies – is an additional threat.
Experts are "often concerned about overemphasizing practical benefits on biodiversity," however "There is a big value in just their presence." But toads do have an important role in the ecosystem, consuming pretty much any invertebrates or small animals they can fit in their mouths and in turn sustaining a variety of predators, such as wildlife. Enhancing conditions for toads – such as building water habitats, protecting forests and installing toad tunnels – "benefits for a wide range of additional wildlife."
Cultural Importance
Another reason to work to preserve toads present is their "important cultural value," adds an specialist. Legends and tales around toads date back {centuries|hundred