Will Britain's Toads Survive from Traffic and Population Collapse?
It is a Friday evening at half past seven, but rather than going out or relaxing at home, I've caught a train to a market town in the countryside to meet up with volunteers from a amphibian rescue group. These committed people sacrifice their nights to protect the native amphibian community.
A Worrying Drop in Numbers
The Bufo bufo is growing more rare. A latest study conducted by an amphibian and reptile charity showed that the UK toad population have dropped by half since 1985. Observing a species that has been a stalwart of the British countryside in decline is labeled "worrying" by researchers. Toads "don't require very particular environments" and "ought to live successfully in the majority of areas in the UK," so if even they are not managing to survive, "it kind of suggests that things are not as they should be."
Toad populations across the UK have declined by almost 50% since the 1980s
The Threat from Traffic
Though the study didn't cover the reasons for the drop, traffic is a major factor. Estimates suggest that 20 tons of toads are killed on UK roads every year – that is, several hundred thousand. In contrast to frogs, which would probably be happy to mate "with just a small container," toads favor large ponds. Their ability to remain away from water for longer than frogs means they can journey farther to reach them – sometimes 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 first toads begin their quest for a mate around Valentine's day, but others travel as far as April, waiting until it gets night and moving after sunset. During that period, toads start moving from where they have been hibernating "almost simultaneously."
One volunteer, who grew up in the region and has been trying to protect its toad population since he was a boy, notes that "They've got just one focus: to go and mate." If their path happens to a road, they could all get run over, and that mating period would never happen – stopping a new generation of toads from being born.
Toad Patrols Throughout the United Kingdom
Seeing many of toad carcasses on local roads "resonates deeply with people," and has resulted in the formation of rescue teams throughout the UK – hundreds of organizations are currently registered with a countrywide program. These groups pick up toads and transport them across roads in containers, as well as recording the quantity of toads they encounter and lobbying for other protection measures, such as road closures and amphibian passages.
Patrols tend to operate during the migration season, when amphibian movements are more regular. However, this implies they can overlook groups of toadlets, which, having existed as eggs and then tadpoles, leave their water habitats over an irregular timetable in the end of summer. Because of their size – just a couple of cm wide – "they can get obliterated by vehicles." And as being hit "basically turns them into mush," it's harder to collect information on them. At least when mature amphibians are killed, their remains can be counted.
Year-Round Efforts
In contrast to most patrols, one local team, who are in their eighth year of functioning, go out year-round – not nightly, but whenever conditions are damp, or if someone has reported about a toad sighting in their messaging app. When I ask to join them on patrol, they concede it is "not a toady night" – winter dormancy has begun 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. "Should anyone can find any toads tonight, that pair will spot one," says the patrol manager, pointing to her teenage child and the longtime volunteer. After for 120 minutes without a single toad sighting, and now they have scaled a wire barrier to inspect beneath some logs.
Community Participation
The mother and son joined the patrol a year and a half ago. The teenager loves all things wildlife and has an ambition to become a conservationist, so his parent started to look for activities they could do together to help native animals. Now she enjoys it as much as he does, the 41-year-old entrepreneur tells me – so when the group was seeking a fresh coordinator recently, she decided to step up.
The teenager, too, has played an important role in the group. A video he made, imploring the municipal authority to close a road through a nature reserve during migration season, influenced the outcome the team's way. After a twelve months of campaigning, the authority agreed to an "access-only" rule between 5pm and 5am from February through to April. Most drivers duly avoided the road.
Other Wildlife and Challenges
Several vehicles go past when I'm out on patrol and we discover some victims as a consequence – no toads, but several crushed salamanders. We see one live amphibian as well, and the youngster is particularly pleased to see a daddy longlegs, which moves in his palms. Yet in spite of the group's hardest attempts to let me see a toad, the native community has clearly settled down for the colder months. It appears that I wouldn't have had any more luck anywhere else in the nation – all the rescue teams I contact explain that it's near-impossible at this season.
They project rescuing nearly 10,000 grown amphibians during migration
A message I get from another volunteer, who has kindly made the effort to check for toads in a famous site, considered the biggest tracked toad population in the UK, arrives in my inbox with the subject line: "None found." However, in February and March, he tells me, the group expects to help around 10,000 adult toads across the road.
Effectiveness and Limitations
What level of impact can these organizations actually make? "The reality that volunteers are doing this consistently on chilly, wet and miserable late nights is quite extraordinary," notes an expert. "That's something that very much should be celebrated." However, while rescue teams are able to reduce the drop, they can't stop it completely – not least because vehicles is just one danger.
Additional Threats
The climate crisis has resulted in extended spells of dry weather, which cause the poor environment for some of the animals that toads eat, such as worms and slugs, while higher water temperatures have led to an rise of toxic plants, which can be harmful to toads. Milder winters also cause toads to wake up from their hibernation more frequently, interfering with the energy conservation vital to their existence. Habitat destruction – particularly the loss of big water bodies – is another menace.
Experts are "always a bit worried about overemphasizing practical benefits on wildlife," however "It's important in just their presence." But toads play an important role in the food chain, consuming almost any small creatures or small animals they can fit in their mouths and in turn sustaining a number of predators, such as hedgehogs and otters. Improving conditions for toads – such as building water habitats, conserving woodland and constructing amphibian passages – "benefits for a wide range of other species."
Historical Significance
Another reason to work to preserve toads present is their "important cultural value," adds an expert. Legends and tales around toads go back {centuries|hundred