Will Britain's Common Toads Be Saved from Roads and Terrible Decline?
It is Friday night at 7:30, but rather than going out or relaxing at home, I've taken a train to a market town in Wiltshire to join local helpers from a amphibian rescue group. These committed people sacrifice their evenings to safeguard the native amphibian community.
An Alarming Decline in Population
The Bufo bufo is becoming increasingly uncommon. A recent study led by an wildlife conservation group showed that the British common toad numbers have almost halved since the mid-1980s. Observing a creature that has been a stalwart of the British countryside in decline is labeled "worrying" by researchers. Toads "don't require very specific conditions" and "ought to live successfully in the majority of areas in Britain," meaning if even they are struggling to persist, "it kind of suggests that things are not as they should be."
Since 1985, Britain's toad numbers have nearly been cut in half
The Threat from Traffic
Though the study didn't examine the reasons for the drop, traffic certainly plays a part. Estimates suggest that 20 tons of toads are crushed on British roads annually – that is, several hundred thousand. Unlike frogs, which might be happy to mate "with just a small container," toads prefer large ponds. Their capacity to stay out of water for more time than frogs allows they can journey farther to find them – sometimes hundreds of metres. They usually follow their ancestral migration routes – it's common for adult toads to go back to their natal pond to mate.
Migration Habits
Fittingly, the initial amphibians start their journey for a partner around Valentine's day, but some move as far as April, until it gets night and moving through the night. During that period, toads start moving from wherever they have been overwintering "all pretty much at the same time."
One volunteer, who was raised in the region and has been working to save its amphibians since he was a boy, explains that "Their sole purpose: to go and mate." If their path crosses a road, they could all get run over, and that mating period would be lost – preventing a next generation of toads from being born.
Toad Patrols Across the UK
Seeing many of toad carcasses on local roads "inherently strikes a chord with people," and has resulted in the creation of rescue teams throughout the UK – 274 groups are officially listed with a national initiative. These teams collect toads and carry them across roads in buckets, as well as counting the number of toads they find and lobbying for other protection measures, such as road closures and amphibian passages.
Patrols usually work during the breeding period, when amphibian movements are more regular. However, this implies they can overlook numbers of young toads, which, having been spawn and then juveniles, leave their ponds over an irregular timetable in the end of summer. Because of their small stature – just one or two centimetres 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 mature amphibians are lost, their remains can be tallied.
Year-Round Efforts
In contrast to most patrols, a specific volunteer group, who are in their eighth season of functioning, go out throughout the year – not nightly, but when weather are warm and wet, or if a member has posted about a toad sighting in their group chat. When I request to accompany them on duty, they concede it is "not a toady night" – toad hibernation season has started and it's been a dry day – but a few of the helpers willingly accept to patrol their route with me and search for any toads. "Should anyone can locate any toads tonight, those two will spot one," says the patrol manager, indicating her teenage child and the longtime volunteer. We've been out for two hours without a glimpse of any amphibians, and now they have climbed over a barbed wire fence to inspect beneath some logs.
Family Involvement
The family duo became part of the patrol a year and a half ago. The youngster adores all things nature-related and has an ambition to become a environmentalist, so his parent started to search for activities they could do together to protect native animals. Now she loves it as much as he does, the middle-aged entrepreneur explains – so when the team was seeking a new manager recently, she decided to step up.
The teenager, too, has played an important role in the group. A clip he made, imploring the municipal authority to close a street through a nature reserve during breeding time, influenced the outcome the group's way. After a year of lobbying, the authority approved an "access-only" rule between evening and morning from February through to spring. The majority of motorists duly avoided the route.
Other Wildlife and Challenges
A few cars go past when I'm out on patrol and we discover some casualties as a result – no amphibians, but three squashed newts. We see one live amphibian as well, and the teenager is particularly pleased to see a harvestman, which dances in his hands. Yet in spite of the group's hardest attempts to show me a toad, the native community has clearly settled down for the colder months. It seems that I wouldn't have had any better success anywhere else in the country – all the patrol groups I contact clarify that it's near-impossible at this season.
This team anticipates assisting around ten thousand mature toads over the street
A message I get from a different helper, who has generously made the effort to check for toads in a noted location, thought to be the largest accurately monitored toad group in the UK, reaches me with the subject line: "None found." However, in February and March, he informs me, the group expects to help around ten thousand mature amphibians over the street.
Impact and Challenges
What level of impact can these groups truly achieve? "The fact that people are doing this regularly on chilly, wet and miserable late nights is quite extraordinary," says an researcher. "That's something that very much should be celebrated." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since traffic is just one danger.
Other Dangers
The global warming has resulted in longer periods of dry weather, which cause the poor environment for some of the creatures that toads eat, 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 wake up from their hibernation more frequently, disrupting the resource preservation vital to their life cycle. Habitat destruction – especially the loss of large ponds – is an additional threat.
Researchers are "often concerned about putting too much of a utilitarian spin on biodiversity," however "It's important in just their presence." But toads do have an important role in the food chain, eating almost any small creatures or tiny organisms they can fit in their mouths and in turn feeding a number of birds and mammals, such as wildlife. Enhancing conditions for toads – such as building water habitats, protecting forests and constructing toad tunnels – "benefits for a whole bunch of additional wildlife."
Historical Significance
Another reason to work to preserve toads around is their "important cultural value," notes an specialist. Legends and tales around toads date back {centuries|hundred