Will the UK's Common Toads Survive from Roads and Population Collapse?
It's a Friday evening at 7:30, but rather than going out or relaxing at home, I've caught a train to a market town in the countryside to join local helpers from a amphibian rescue group. These dedicated individuals sacrifice their nights to protect the local toad population.
An Alarming Drop in Population
The common toad is becoming increasingly uncommon. A recent research conducted 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 fixture of the UK landscape in decrease is labeled "worrying" by researchers. Toads "don't require very specific conditions" and "should be able to live successfully in the majority of habitats in the UK," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."
Toad populations across the UK have declined by almost 50% since the 1980s
The Threat from Roads
Though the study didn't cover the reasons for the decline, cars is a major factor. Estimates indicate that 20 tonnes of toads are killed on British roads annually – that is, several hundred thousand. Unlike frogs, which would probably be content to mate "if you left out a bucket of water," toads favor big bodies of water. Their capacity to stay out of water for more time than frogs allows they can journey farther to reach them – often hundreds of metres. They usually follow their ancestral migration routes – it's common for adult toads to go back to their birth pond to mate.
Migration Patterns
Fittingly, the initial amphibians start their journey for a partner around Valentine's day, but others travel as far as April, waiting until it gets dark and moving through the night. During that period, toads start moving from where they have been hibernating "all pretty much at the same time."
A local helper, who was raised in the area and has been trying to protect its toad population since he was a child, explains that "Their sole purpose: to go and have an orgy." If their path crosses a street, they could be killed by traffic, and that mating period would never happen – stopping a next generation of toads from being produced.
Toad Patrols Across the United Kingdom
Seeing many of dead toads on nearby streets "resonates deeply with people," and has led to the formation of rescue teams throughout the UK – hundreds of organizations are officially listed with a countrywide program. These teams collect toads and carry them over streets in containers, as well as counting the number of toads they find and advocating for other safety solutions, such as blocked roads and underground wildlife tunnels.
Patrols usually work during the breeding period, when amphibian movements are more regular. However, this implies they can miss numbers of toadlets, which, having been eggs and then juveniles, leave their water habitats over an unpredictable schedule in late summer. Because of their small stature – just a couple of cm wide – "they are destroyed by vehicles." And as being hit "essentially crushes them," it's more difficult to get data on them. At least when adult toads are lost, their remains can be counted.
Year-Round Efforts
In contrast to most patrols, one local team, who are in their eighth year of operating, go out throughout the year – not nightly, but when weather are warm and wet, or if a member has reported about a toad sighting in their messaging app. When I ask to join them on duty, they admit it is "not a toady night" – winter dormancy has started and it's been a arid period – but a few of the helpers willingly accept to patrol their area 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 teenage child 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 logs.
Community Involvement
The family duo became part of the patrol a year and a half ago. The teenager loves all things wildlife and has an goal to become a conservationist, so his parent started to search for things they could do jointly to protect local wildlife. Now she enjoys it as much as he does, the middle-aged entrepreneur explains – so when the group was seeking a fresh coordinator recently, she volunteered for the role.
The teenager, too, has been instrumental in the group. A video he made, imploring the municipal authority to close a road through a nature reserve during breeding time, influenced the outcome the team's way. After a twelve months of lobbying, the authority approved an "access-only" restriction between evening and morning from February through to April. The majority of motorists duly avoided the road.
Other Wildlife and Difficulties
A few cars go by when I'm out on patrol and we find some casualties as a consequence – no toads, but three squashed newts. We spot one live amphibian as well, and the youngster is especially excited to see a daddy longlegs, which moves in his hands. Yet in spite of the group's hardest attempts to let me see a toad, the native community has obviously settled down for the winter. It seems that I couldn't have found any better success elsewhere in the nation – all the patrol groups 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
A message I receive from another volunteer, who has generously made the effort to look for toads in a noted location, thought to be the biggest tracked toad population in the UK, reaches me with the subject line: "No toads." However, in February and March, he tells me, the team expects to help around 10,000 mature amphibians over the street.
Impact and Limitations
How much of a difference can these groups truly achieve? "The fact that people are performing this consistently on chilly, wet and miserable late nights is quite extraordinary," says an expert. "This effort that very much deserves recognition." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since vehicles is just one danger.
Other Dangers
The global warming has resulted in extended spells of drought, which cause the wrong conditions for some of the animals that toads eat, such as invertebrates, while higher water temperatures have caused an rise of blue-green algae, which can be toxic to toads. Warmer cold seasons also cause toads to emerge from their dormancy more often, disrupting the energy conservation crucial to their life cycle. Loss of environment – especially the loss of big water bodies – is an additional threat.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," but "It's important in just having these animals around." But toads play an significant part in the ecosystem, consuming pretty much any small creatures or tiny organisms they can fit in their mouths and in turn sustaining a variety of predators, such as hedgehogs and otters. Enhancing conditions for toads – ie building water habitats, conserving woodland and installing amphibian passages – "we'll improve them for a whole bunch of additional wildlife."
Cultural Significance
An additional motive to work to preserve toads around is their "historical significance," notes an specialist. Myths and folklore around toads date back {centuries|hundred