Will Britain's Toads Survive from Traffic and Terrible Decline?
It's Friday evening at half past seven, but rather than going out or relaxing at home, I've taken a train to a town in the countryside to join local helpers from a amphibian rescue group. These committed people sacrifice their nights to safeguard the local toad population.
A Worrying Decline in Population
The common toad is becoming increasingly rare. A recent study led by an wildlife conservation group revealed that the British common toad numbers have dropped by half since 1985. Observing a species that has been a stalwart of the British countryside in decline is described as "worrying" by experts. Toads "don't need very specific conditions" and "should be able to live successfully in the majority of habitats in the UK," meaning 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 examine the causes for the decline, traffic certainly plays a part. Calculations indicate that 20 tons of toads are crushed on UK roads every year – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "if you left out a small container," toads favor big bodies of water. Their capacity to stay out of water for longer than frogs means they can travel further to reach them – often long distances. They usually follow their ancestral migration routes – it's common for adult toads to return to their natal pond to mate.
Breeding Patterns
Appropriately enough, the initial amphibians start their journey for a partner around Valentine's day, but others travel as late as spring, until it gets dark and travelling through the night. During that period, toads begin migrating from where they have been overwintering "almost simultaneously."
A local helper, who grew up in the area and has been trying to protect its amphibians since he was a child, notes that "Their sole purpose: to go and have an orgy." If their route crosses a road, they could be killed by traffic, and that breeding season would never happen – preventing a new generation of toads from being born.
Rescue Groups Throughout the United Kingdom
Seeing hundreds of toad carcasses on local roads "resonates deeply with people," and has led to the formation of toad patrols across the UK – hundreds of organizations are officially listed with a countrywide program. These groups collect toads and carry them across roads in containers, as well as recording the quantity of toads they encounter and lobbying for other protection measures, such as blocked roads and underground wildlife tunnels.
Volunteers usually work during the breeding period, when toad crossings are more regular. However, this means they can overlook numbers of toadlets, which, having existed as eggs 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 are destroyed by vehicles." And as being hit "basically turns them into mush," it's more difficult to collect information on them. At least when mature amphibians are lost, their remains can be tallied.
Annual Efforts
Unlike many groups, one local team, who are in their eighth season of operating, go out throughout the year – not every night, but whenever weather are warm and wet, or if a member has posted about a amphibian spotting in their messaging app. When I request to accompany them on duty, they admit it is "not ideal conditions" – toad hibernation season has begun and it's been a arid period – but a few of the helpers gamely agree to patrol their area with me and search for any toads. "If anyone can find any toads tonight, those two will find one," says the patrol manager, indicating her teenage child and the longtime volunteer. We've been out for two hours without a single toad sighting, and now they have scaled a wire barrier to inspect beneath some logs.
Family Involvement
The family duo joined the group a while back. The teenager adores all things nature-related and has an ambition to become a environmentalist, so his parent started to look for things they could do jointly to protect local wildlife. Now she loves it as much as he does, the 41-year-old entrepreneur explains – so when the group was looking for a new manager lately, she volunteered for the role.
The teenager, too, has been instrumental in the organization. A clip he created, urging the local council to block a street through a protected area during breeding time, swung the decision the team's way. After a twelve months of campaigning, the council agreed to an "access-only" rule between 5pm and 5am from February through to April. Most drivers respected and avoided the road.
Additional Species and Difficulties
Several vehicles go past when I'm out on duty and we discover some casualties as a result – no toads, but several crushed salamanders. We see one living newt as well, and the teenager is particularly pleased to see a harvestman, which dances in his hands. Yet despite the team's best efforts to show me a toad, the native community has obviously settled down for the winter. It appears that I wouldn't have had 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.
The group expects to help approximately 10,000 adult toads across the road
A message I get from a different helper, who has generously made the effort to look for toads in a famous site, considered the biggest tracked toad population in the UK, arrives in my inbox with the title: "No toads." However, in late winter, he informs me, the group expects to help around ten thousand mature amphibians across the road.
Effectiveness and Limitations
How much of a difference can these organizations truly achieve? "The reality that volunteers are performing this regularly on cold, damp and unpleasant evenings is remarkable," says an expert. "This effort that very much deserves recognition." However, while toad patrols are able to slow the decline, they can't stop it completely – not least because vehicles is just one danger.
Other Dangers
The global warming has resulted in longer periods of dry weather, which cause the wrong conditions for some of the creatures that toads consume, such as invertebrates, while warmer ponds have led to an rise of blue-green algae, which can be toxic to toads. Warmer cold seasons also cause toads to wake up from their dormancy more often, disrupting the resource preservation vital to their existence. Loss of environment – particularly the loss of big water bodies – is another menace.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," however "It's important in just having these animals around." But toads play an important role in the food chain, consuming pretty much any invertebrates or small animals they can swallow and in turn sustaining a number of predators, such as hedgehogs and otters. Improving conditions for toads – such as building water habitats, protecting forests and installing amphibian passages – "benefits for a wide range of other species."
Historical Significance
Another reason to work to preserve toads around is their "important cultural value," adds an expert. Legends and tales around toads date back {centuries|hundred