Can the UK's Toads Survive from Roads and Terrible Decline?
It's Friday evening at 7:30, but instead of heading to the pub or watching a film, I've caught a train to a market town in Wiltshire to join local helpers from a toad patrol. These committed people give up their evenings to protect the native amphibian community.
An Alarming Drop in Numbers
The common toad is becoming increasingly uncommon. A latest study led by an wildlife conservation group revealed that the British common toad numbers have dropped by half since the mid-1980s. Seeing a species that has been a fixture of the British countryside in decrease is described as "worrying" by researchers. Toads "don't need very specific conditions" and "should be able to live successfully in the majority of areas in Britain," meaning if even they are not managing to survive, "it kind of suggests that things are not as they should be."
The UK toad population has almost halved since 1985
The Danger from Traffic
Though the study didn't cover the causes for the drop, cars certainly plays a part. Calculations indicate that 20 tonnes of toads are crushed on UK roads every year – in other words, several hundred thousand. 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 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 common for adult toads to go back to their birth pond to mate.
Migration Patterns
Fittingly, the first toads start their journey for a partner around Valentine's day, but some move as far as spring, until it gets night and moving after sunset. During that time, toads start moving from where they have been hibernating "all pretty much at the same time."
One volunteer, who grew up in the region and has been working to save its toad population since he was a child, explains that "Their sole purpose: to go and have an orgy." If their route crosses a street, they could all get run over, and that mating period would never happen – stopping a new generation of toads from being born.
Toad Patrols Across the United Kingdom
Seeing many of toad carcasses on local roads "inherently strikes a chord with people," and has led to the creation of toad patrols throughout the UK – hundreds of organizations are currently registered with a national initiative. These groups collect toads and transport them across roads in buckets, as well as counting the number of toads they find and advocating for other protection measures, such as blocked roads and underground wildlife tunnels.
Patrols usually work during the migration season, when toad crossings are more regular. However, this means they can overlook groups of toadlets, which, having been eggs and then juveniles, exit their ponds 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 hit "essentially crushes them," it's more difficult to get data on them. At least when adult toads are killed, their remains can be tallied.
Annual Efforts
Unlike most patrols, one local team, who are in their eighth season of functioning, go out throughout the year – not nightly, but whenever weather are warm and wet, or if someone has posted about a amphibian spotting in their messaging app. When I ask to join them on duty, they concede it is "not a toady night" – toad hibernation season has started and it's been a arid period – but a few of the volunteers gamely agree to patrol their route with me and see what we can find. "If anyone can locate any toads tonight, that pair will find one," says the patrol manager, pointing to her 14-year-old son and the longtime volunteer. We've been out for two hours without a single toad sighting, and now they have climbed over a barbed wire fence to inspect beneath some logs.
Community Participation
The family duo became part of the patrol 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 seeking a fresh coordinator recently, she decided to step up.
The teenager, too, has been instrumental in the group. A clip he created, imploring the municipal authority to close a road through a protected area during migration season, swung the decision the team's way. After a twelve months of lobbying, the authority agreed to an "restricted access" rule between 5pm and 5am from late winter through to spring. Most drivers respected and avoided the road.
Additional Species and Difficulties
A few cars go past when I'm out on duty and we find some casualties as a consequence – no toads, but three squashed newts. We see one live amphibian as well, and the teenager is especially excited to see a harvestman, which dances in his hands. Yet despite the group's best efforts to let me see a toad, the native community has obviously gone dormant for the winter. It seems that I wouldn't have had any more luck anywhere else in the nation – all the rescue teams I contact clarify that it's near-impossible at this season.
The group expects to help approximately 10,000 adult toads across the road
A message I receive from another volunteer, who has kindly taken the trouble to look for toads in a famous site, thought to be the largest accurately monitored toad group in the UK, arrives in my inbox with the subject line: "None found." However, in February and March, he tells me, the group plans to assist approximately 10,000 adult toads over the street.
Effectiveness and Limitations
What level of impact can these organizations truly achieve? "The fact that people are doing this consistently on cold, damp and unpleasant evenings is remarkable," notes 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 not the only threat.
Other Dangers
The global warming has resulted in extended spells of drought, which create the poor environment for some of the creatures that toads consume, 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 lead toads to wake up from their dormancy more frequently, interfering with the resource preservation crucial to their life cycle. Loss of environment – especially the disappearance of big water bodies – is another menace.
Researchers are "always a bit worried about overemphasizing practical benefits on biodiversity," but "There is a big value in just their presence." But toads play an important role in the food chain, consuming almost any invertebrates or tiny organisms they can fit in their mouths and in turn sustaining a variety of birds and mammals, such as hedgehogs and otters. Improving conditions for toads – ie building water habitats, protecting forests and constructing toad tunnels – "we'll improve them for a whole bunch of other species."
Historical Significance
An additional motive to work to preserve toads present is their "important cultural value," adds an expert. Legends and tales around toads date back {centuries|hundred
