Can Britain's Toads Survive from Roads and Terrible Decline?
It's Friday night at half past seven, but instead of heading to the pub or relaxing at home, I've caught a train to a market town in the countryside to join local helpers from a amphibian rescue group. These dedicated individuals sacrifice their nights to safeguard the local toad population.
A Worrying Decline in Population
The Bufo bufo is growing more uncommon. A latest study led by an wildlife conservation group showed that the UK toad population have dropped by half since the mid-1980s. Observing a species that has been a stalwart of the British countryside in decrease is labeled "worrying" by researchers. Toads "don't need very particular environments" and "should be able to live quite well in most of areas in Britain," 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 drop, cars certainly plays a part. Estimates indicate that 20 tonnes of toads are killed on UK roads annually – in other words, several hundred thousand. In contrast to frogs, which might be content to mate "if you left out a small container," toads prefer big bodies of water. Their ability to stay out of water for more time than frogs allows they can travel further to find them – often hundreds of metres. They usually follow their traditional paths – it's common for adult toads to go back to their natal pond to mate.
Breeding Habits
Appropriately enough, the first toads start their journey for a partner around February 14th, but others travel as far as April, until it gets night and travelling through the night. During that time, toads start moving from where they have been overwintering "all pretty much at the same time."
A local helper, who was raised in the region and has been working to save its toad population since he was a child, notes that "They've got just one focus: to go and mate." If their path crosses a road, they could be killed by traffic, and that mating period would never happen – preventing a next generation of toads from being produced.
Rescue Groups Across the United Kingdom
Seeing hundreds of dead toads on local roads "inherently strikes a chord with people," and has led to the formation of toad patrols throughout the UK – hundreds of organizations are currently registered with a national initiative. These teams collect toads and carry them over streets in containers, as well as recording the number of toads they find and lobbying for other safety solutions, such as blocked roads and amphibian passages.
Volunteers tend to operate during the migration season, when amphibian movements are frequent. However, this implies they can overlook groups of young toads, which, having existed as eggs and then juveniles, leave their water habitats over an irregular timetable in late summer. Because of their small stature – just a couple of cm wide – "they are destroyed by car traffic." And as being run over "essentially crushes them," it's more difficult to collect information on them. At least when adult toads are lost, their remains can be tallied.
Year-Round Efforts
In contrast to many groups, one local team, who are in their eighth year of operating, go out throughout the year – not nightly, but whenever weather are warm and wet, or if a member has posted about a toad sighting in their group chat. When I ask to join them on duty, they admit it is "not ideal conditions" – winter dormancy has begun and it's been a dry day – but a few of the volunteers gamely agree to patrol their area 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 14-year-old son and the longtime volunteer. After for 120 minutes without a glimpse of any amphibians, and now they have scaled a wire barrier to check under some logs.
Family Involvement
The family duo joined the group a year and a half ago. The teenager adores all things wildlife and has an goal to become a conservationist, so his parent started to search for things they could do jointly to help local wildlife. Now she loves it as much as he does, the 41-year-old small business owner explains – so when the group was looking for a new manager lately, she decided to step up.
The teenager, too, has played an important role in the group. A video he created, imploring the municipal authority to close a street through a nature reserve during migration season, swung the decision the group's way. After a year of lobbying, the authority agreed to an "access-only" restriction between 5pm and 5am from late winter through to April. The majority of motorists duly avoided the road.
Other Wildlife and Challenges
Several cars go by when I'm out on patrol and we find some victims as a result – no amphibians, but several crushed salamanders. We spot one live amphibian as well, and the teenager is especially excited to see a daddy longlegs, 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 country – all the patrol groups I contact clarify that it's near-impossible at this time of year.
This team anticipates assisting around ten thousand mature toads over the street
One email I receive from a different helper, who has kindly made the effort to look for toads in a noted location, considered the biggest tracked toad population in the UK, reaches me with the title: "No toads." However, in late winter, he tells me, the group plans to assist around ten thousand mature amphibians over the street.
Impact and Challenges
How much of a difference can these organizations truly achieve? "The fact that people are doing this consistently on chilly, wet and miserable evenings is quite extraordinary," says an researcher. "That's something that very much deserves recognition." However, while toad patrols are able to reduce the drop, they can't stop it completely – partly since traffic is not the only threat.
Additional Threats
The global warming has meant extended spells of drought, which cause the poor environment for some of the creatures that toads eat, such as invertebrates, while higher water temperatures have caused an rise of blue-green algae, which can be harmful to toads. Warmer cold seasons also lead toads to wake up from their dormancy more frequently, disrupting the energy conservation vital to their existence. Habitat destruction – particularly the loss of big water bodies – is an additional threat.
Researchers are "often concerned about overemphasizing practical benefits on biodiversity," but "It's important in just having these animals around." But toads do have an significant part in the food chain, eating pretty much any small creatures 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 creating more ponds, conserving woodland and constructing amphibian passages – "benefits for a wide range of additional wildlife."
Historical Importance
An additional motive to work to preserve toads around is their "important cultural value," notes an expert. Legends and tales around toads go back {centuries|hundred