Can Britain's Toads Be Saved from Traffic and Population Collapse?
It is Friday night at 7:30, but rather than going out or watching a film, I've taken a train to a market town in Wiltshire to join volunteers from a amphibian rescue group. These committed people give up their evenings to protect the local toad population.
An Alarming Decline in Population
The Bufo bufo is growing more rare. A recent study conducted by an amphibian and reptile charity revealed that the UK toad population have dropped by half since the mid-1980s. Seeing a species that has been a fixture of the British countryside in decrease is labeled "concerning" by experts. Toads "don't need very specific conditions" and "ought to live successfully in most of habitats in the UK," so 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 Threat from Traffic
Though the research didn't cover the causes for the decline, traffic certainly plays a part. Calculations indicate that 20 tonnes of toads are crushed on British roads annually β in other words, hundreds of thousands. In contrast to frogs, which might be content to mate "with just a small container," toads favor big bodies of water. Their capacity to remain away from water for longer than frogs allows they can journey farther to reach them β sometimes long distances. They tend to stick to their traditional paths β it's typical for mature amphibians to go back to their natal pond to mate.
Breeding Patterns
Fittingly, the first toads begin their quest for a mate around February 14th, but some move as far as April, waiting until it gets dark and moving through the night. During that period, toads start moving from wherever they have been hibernating "almost simultaneously."
A local helper, who was raised in the area and has been working to save its amphibians since he was a child, explains that "Their sole purpose: to go and have an orgy." If their path happens to a road, they could all get run over, and that breeding season would never happen β preventing a next generation of toads from being produced.
Toad Patrols Across the UK
Seeing hundreds of toad carcasses on local roads "resonates deeply with people," and has resulted in the formation of toad patrols across the UK β 274 groups are currently registered with a countrywide program. These groups collect toads and carry them over streets in containers, as well as counting the quantity of toads they find and lobbying for other safety solutions, such as blocked roads and amphibian passages.
Volunteers usually work during the breeding period, when amphibian movements are frequent. However, this means they can miss numbers of young toads, which, having existed as spawn and then juveniles, leave their ponds over an unpredictable schedule in late summer. Because of their size β just one or two centimetres wide β "they are destroyed by vehicles." And as being run over "basically turns them into mush," it's harder to get data on them. At least when adult toads are lost, their carcasses can be counted.
Annual Work
Unlike most patrols, one local team, who are in their eighth year of operating, go out throughout the year β not nightly, but when weather are warm and wet, or if a member has posted about a amphibian spotting in their messaging app. When I ask to join them on duty, they concede it is "not ideal conditions" β winter dormancy has begun and it's been a dry day β but a few of the volunteers willingly accept to walk up and down their route with me and search for any toads. "Should anyone can find any toads tonight, those two will find one," says the group coordinator, indicating her 14-year-old son and the experienced member. 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 Participation
The family duo joined the group a year and a half ago. The youngster loves all things nature-related and has an ambition to become a conservationist, so his parent started to search for things they could do together to help native animals. Now she enjoys it as much as he does, the middle-aged entrepreneur explains β so when the group was looking for a fresh coordinator recently, she decided to step up.
The youth, 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, swung the decision the group's way. After a twelve months of lobbying, the council agreed to an "restricted access" restriction between evening and morning from late winter through to April. Most drivers duly avoided the road.
Other Wildlife and Difficulties
A few cars go by when I'm out on patrol and we find some victims as a consequence β no toads, but three squashed newts. We spot one living newt as well, and the teenager is particularly pleased to see a daddy longlegs, which dances in his palms. Yet in spite of the group's best efforts to show me a toad, the native community has obviously gone dormant for the winter. It seems that I couldn't have found any more luck elsewhere in the country β all the patrol groups I reach out to explain 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 generously made the effort to check for toads in a famous site, considered the biggest tracked toad group in the UK, arrives in my inbox with the title: "None found." However, in February and March, he informs me, the group plans to assist around 10,000 adult toads over the street.
Effectiveness and Challenges
What level of impact can these organizations truly achieve? "The reality that people are doing this consistently on cold, damp and unpleasant late nights is quite extraordinary," notes an expert. "This effort that very much deserves recognition." However, while rescue teams are able to reduce the drop, they cannot prevent it entirely β not least because vehicles is not the only threat.
Additional Threats
The global warming has resulted in longer periods of dry weather, which create the poor environment for some of the creatures that toads consume, such as worms and slugs, while higher water temperatures have caused an increase of blue-green algae, which can be harmful to toads. Milder winters also lead toads to wake up from their hibernation more often, disrupting the resource preservation crucial to their existence. Habitat destruction β especially the disappearance of big water bodies β is another menace.
Researchers are "often concerned about overemphasizing practical benefits on wildlife," but "It's important in just having these animals around." But toads play an significant part in the food chain, consuming pretty much any small creatures or tiny organisms they can swallow and in turn feeding a variety of birds and mammals, such as hedgehogs and otters. Improving situations for toads β such as building water habitats, conserving woodland and constructing amphibian passages β "we'll improve them for a whole bunch of additional wildlife."
Cultural Significance
Another reason to try to keep toads around is their "historical significance," adds an expert. Legends and tales around toads date back {centuries|hundred