Students from Ms. Foster’s Grade 8 class try a hand at frog-watching at the Jubilee wetland. Photo CKISS

Rossland students learn to fight an invasive species

Grade 8 students learn about American Bullfrog problem

Students at Rossland Summit School have been trained to be foot soldiers in the war against an invasive enemy.

The American Bullfrog is now migrating from the south into the Kootenay region.

The arrival of this invasive species is bad news for local ecosystems, and native amphibians that call this area home. The American bullfrog is listed as one of the 100 worst alien invasive species internationally due to its adaptable, prolific, competitively exclusive, and predatory nature.

Another concern is that American bullfrogs are asymptomatic carriers of the deadly chytrid fungus. They can spread this fungus, which has been described as “the worst infectious disease ever recorded among vertebrates in terms of the number of species impacted, and its propensity to drive them to extinction,” according to one study.

The Central Kootenay Invasive Species Society has been working to prevent the invasive frogs from heading north. An early detection and rapid response surveillance program has been implemented, and the area has been under regular monitoring since the summer of 2015.

Thanks to funding from Natural Sciences and Engineering Research Council of Canada PromoScience Program, CKISS developed a Citizen Science: Frog Watching Program that was delivered to Grade 8 students at the Rossland Summit School earlier this month. The objective of the program is to provide teachers and students with a hands-on and interactive experience that will give them the knowledge, tools and resources they need in order to make vital contributions to invasive species early detection, monitoring and management by becoming citizen scientists.

Students received training on how to identify both native and invasive frogs using a dichotomous key and by listening to their different calls. A ‘dichotomous key’ is a series of choices that lead the user to the correct name of a given biological item. “Dichotomous” means “divided into two parts.”

The students were also advised on how to report invasive bullfrog sighting and what steps to take in order to upload frog observations to the provincial wildlife database that biologists use to manage wildlife in BC.

After their training was complete, the students along with CKISS staff went to the Jubilee wetland put their training to the test.

During the field trip, the students received an additional hands-on learning experience by conducting an inventory of the invasive plant species that they observed along Centennial trail using field guides and invasive alien plant program forms. Students stepped into the role of ‘invasive species technician’ by recording the density and distribution of the invasive plants that they found.

Visit for information on how to identify bullfrogs, and other invasive species.

Bullfrog sightings can be reported to 250-354-6333, or by email

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