The Pacific Rim National Park Reserve installed three new tunnels under the highway between Tofino and Ucluelet to help prevent roadkill incidents and connect important amphibians and other wildlife to their wetland and forest habitats. (Barb Beasley photo)

The Pacific Rim National Park Reserve installed three new tunnels under the highway between Tofino and Ucluelet to help prevent roadkill incidents and connect important amphibians and other wildlife to their wetland and forest habitats. (Barb Beasley photo)

Frog tunnels installed near Tofino to keep amphibians safe while hopping under highway

Three new tunnels installed in Pacific Rim National Park Reserve

The West Coast is hopping up its efforts to help amphibians cross highways safely.

The region serves as an important habitat for Northern Red-legged Tree Frogs, a species at risk that pays the area back for its hospitality by distributing vital nutrients while migrating between wetlands and forests.

“They are really key parts of the ecosystem,” Dr. Barb Beasley, founding director of the Association of Wetland Stewards for Clayoquot and Barkley Sounds, told the Westerly News.

“They move back and forth, so they’re like these little nutrient energy packets moving through the forest. It’s a migratory animal that is taking nutrients across the landscape so, if we block them off or kill them off at roadways, then we’re interrupting that whole ecosystem process and that’s not a good thing to do.”

The Pacific Rim National Park Reserve recently installed three tunnels under the highway between Tofino and Ucluelet to help amphibians migrate across the landscape without getting run over by motorists.

Parks Canada spokesperson Nancy Hildebrand told the Westerly that the tunnels are 17 meters long with a hopping clearance of about 30cm and were constructed as part of the work being done to build a roughly 25 kilometre path through the Park Reserve.

READ MORE: Cost of trail through Pacific Rim National Park Reserve up to $51 million

She said the preparation work to construct the path included identifying and protecting potentially impacted species, like Northwestern and Wandering Salamanders, Pacific Tree Frogs and Northern Red-legged Frogs.

“Swan Lake Wetland is located approximately 500 metres from the road and is an essential breeding habitat for many species; notably the Northern Red-legged Frog, which is a species of concern. These crossings, which are similar to culverts, were installed ahead of the important migration period,” she said.

“The crossings are equipped with directional fencing and a lock block wall, which stops amphibians from crossing the road and funnels them into the crossings. Soil and logs have been placed inside to provide natural cover and to help encourage amphibians to cross through.”

She added that the decision to build the tunnels, as well as their locations, was largely guided by data collected by Beasley.

“The data shows that the frequency of road mortalities of amphibians in this area is very high compared to other locations in the Park Reserve. Dr. Beasley has worked closely with the project design engineers and construction crews to ensure that the culvert design and placement would encourage amphibians to make use of them,” Hildebrand said.

The Association of Wetland Stewards installed a similar tunnel under the highway in 2011 and Beasley said the association’s monitoring of that tunnel shows they are helping not just amphibians, but other creatures as well, like salamanders, mink, marten, ermine and even black bears.

Beasley added that the Park Reserve’s three new tunnels will reduce road mortality and boost connectivity to different habitats on each side of the highway.

“It’s been really heartbreaking to see hundreds to thousands of animals that would get killed on that stretch of highway every year so if we can do anything to minimize or reduce that amount of mortality, that’s a good thing,” she said.

The association recently wrapped up another project to help amphibian migration, working alongside the Central Westcoast Forest Society to create a path over Lost Shoe Bridge #1.

“It’s a very eventful year for the red legged frogs here this year,” Beasley said.

She explained that bridges built in B.C. are “armoured” with coarse angular rock material called riprap to limit erosion, which makes it difficult for frogs to cross as they often get stuck between jagged crevasses.

“It really does cause some issues for wildlife passage, especially if you’re a little frog and you’re trying to make your way through this riprap, it’s very challenging,” she said.

The team covered the riprap with sand and rounded grovel to create a path for frogs so that they can cross without getting stuck.

Beasley said the project was made possible by funding from the Habitat Conservation Trust Foundation and support from the Ministry of Transportation.

While the new migration boosters will be a boon to frog populations, Beasley cautioned that the species faces a tough road ahead due to a variety of factors, including logging and climate change. She suggested a breeding area east of Swan Lake was logged in 2016, which coincided with a dramatic drop in the Red-legged Tree Frog population.

“They’re getting killed by cars on the highway, but they’re also losing habitat because of logging that’s happening around them,” she said. “It’s not just one thing, it’s a whole suite of issues or factors that cause declines in populations. By addressing the roadkill issue, we are helping to bolster the chances of the population surviving all of these other potential detrimental effects around them.”

She added climate change has brought dangerously colder and dryer winters to the West Coast’s amphibians, as well as more severe droughts during the summer, putting local amphibians in peril.

“If it weren’t for all the good people that are working to try and address the threats that these species experience, they would be toast. They would decline and it would be very perilous for them. And, I think, the perils are not going away, so there’s a need for continued vigilance and trying to restore habitats, habitat connectivity and protect habitats,” she said.

“They’re a huge component of the food web because they’re predators of small invertebrates living in the soil, so they have an influence over how soil is decomposed and they’re also prey items for all these other things like birds and mammals like the mink and the martin and ermine. They’re the basis of how the world works out here. If we don’t have all of these animals as a part of our ecosystem, the ecosystem is going to not produce all the things that we benefit from…They’re part of a big picture. Hishuk ish tsawalk. Everything is connected, everything is one.

Anyone wanting to support the association’s efforts is encouraged to reach out through its Association of Wetland Stewards for Clayoquot and Barkley Sounds Facebook page or emailing wetlandstewards@gmail.com.



andrew.bailey@westerlynews.ca

Like us on Facebook and follow us on Twitter

READ MORE: Partnership helps protect baby toads from being trampled near Ucluelet

READ MORE: Bizarre roadkill incident brings first confirmed bullfrog sighting to Pacific Rim National Park Reserve

READ MORE: Tree frogs thriving on West Coast

Tofino,Wildlife

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Correlieu Secondary School students Hanna Fitchett, Justin Pugh and Jaeana Dumais (missing from photo) were recently recognized by the Quesnel and District Arts Council for their poetry submissions to the community writing contest. The students’ work was inspired by the novel Wenjack and the film The Secret Path. (Photo Submitted)
LETTER: Quesnel high school students’ poetry recognized

CSS thanks the Quesnel and District Arts Council and its community writing contest partners

The director of the Wells Snowmobile Club, Dexter Knorr, shared what is in his safety kit when sledding. Included are spare parts for his machine, like sparkplugs, and specially-designed tow ropes. (Submitted Photo)
Wells Snowmobile Club director shares tips for safe sledding

Two Prince George men were recently stranded on Yanks Peak, one overnight

In this file photo from 2019, Tammy Burrows of the Wild Women of the North Society organizes the donations before the group of volunteers begins assembling Christmas hampers Dec. 22 at the Quesnel Tillicum Society Native Friendship Centre. The society is collecting food hamper items again this winter, along with winter clothing and warm gear. (Quesnel Cariboo Observer File Photo)
There are many ways to help fill Christmas hampers in and around Quesnel

Many businesses, volunteers and the RCMP are collecting hamper items over the next few weeks

A masked statue of Billy Barker sits on top of his namesake casino in downtown Quesnel. As we head into the weekend, Northern Health is urging residents to follow all provincial health orders, which include mandatory masks inside all indoor spaces. (Cassidy Dankochik Photo - Quesnel Cariboo Observer)
A masked statue of Billy Barker sits on top of his namesake casino, eight months to the day it was closed to help stop the spread of COVID-19. Owner Brad Kotzer said they won’t be opening in 2020. (Cassidy Dankochik Photo - Quesnel Cariboo Observer)
Northern Health urges residents to respect COVID-19 rules

The number of COVID-19 cases has been growing, and Northern Health saw 35 new cases from Nov. 26-27

Coralee Oakes won 48.42 per cent of ballots in the Cariboo North district in the October election, en route to winning a third term as MLA. (Photo Submitted)
Cariboo North MLA sworn in, despite technical difficulties

Coralee Oakes began her third term as the region’s MLA but couldn’t attend the virtual ceremony

Mary Cox and Jack Plant dance in their pyjamas and slippers at the morning pyjama dance during the Rhythm Reelers’ 25 Annual Rally in the Valley Square Dance Festival in Chilliwack on June 4, 2011. Sunday, Nov. 29, 2020 is Square Dancing Day. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of Nov. 29 to Dec. 5

Square Dancing Day, Disability Day and International Ninja Day are all coming up this week

Black Press Media and BraveFace have come together to support children facing life-threatening conditions. Net proceeds from these washable, reusable, three-layer masks go to Make-A-Wish Foundation BC & Yukon.
Put on a BraveFace: Help make children’s wishes come true

Black Press Media, BraveFace host mask fundraiser for Make-A-Wish Foundation

Kevin Bieksa during his days playing with the Vancouver Canucks. (Photo: commons.wikimedia.org)
Bieksa to guest on free Canucks Alumni ‘Hot Stove’ on Zoom app

Former NHL player has become a game analyst on Sportsnet

114 Canadians were appointed Nov. 27 to the Order of Canada. (Governor General of Canada photo)
Indigenous actor, author, elder, leaders appointed to Order of Canada

Outstanding achievement, community dedication and service recognized

More than 60 cm of snow has fallen at Ulkatcho First Nation near Anahim Lake in the Chilcotin since a snowfall warning went into effect Thursday, Nov. 26. (Graham West photo)
VIDEO: More than 60 cm of snowfall in Chilcotin since Thursday, Nov. 26

Graham West of Ulkatcho First Nation captures the scene on video

Screenshot of Pastor James Butler giving a sermon at Free Grace Baptist Church in Chilliwack on Nov. 22, 2020. The church has decided to continue in-person services despite a public health order banning worship services that was issued on Nov. 19, 2020. (YouTube)
2 Lower Mainland churches continue in-person services despite public health orders

Pastors say faith groups are unfairly targeted and that charter rights protect their decisions

A big job: Former forests minister Doug Donaldson stands before a 500-year-old Douglas fir in Saanich to announce preservation of some of B.C.’s oldest trees, July 2019. (B.C. government)
B.C. returning to ‘stand-alone’ forests, rural development ministry

Horgan says Gordon Campbell’s super-ministry doesn’t work

Peter Wilson, left, and Micah Rankin, right, formed the Special Prosecutor team that was tasked with reviewing and litigating charges stemming from the Bountiful investigation. Trevor Crawley photo.
End of Bountiful prosecution wraps up decades of legal battles

Constitutional questions had to be settled before a polygamy prosecution could move forward

Alexandre Bissonnette, who pleaded guilty to a mass shooting at a Quebec City mosque, arrives at the courthouse in Quebec City on February 21, 2017. THE CANADIAN PRESS/Mathieu Belanger - POOL
Court strikes down consecutive life sentences; mosque shooter has prison term cut

The decision was appealed by both the defence and the Crown

Most Read