RSS grade 8 students are combating invasive American bullfrogs & plants using citizen science.

Invasive American bullfrogs are now migrating from the south into the Kootenay region.  This 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” (Gascon et al, 2007).

The American Bullfrog is a wetland bully!

The Central Kootenay Invasive Species Society (CKISS), has been working to prevent the invasive frogs from heading north.  An early detection and rapid response (EDRR) 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 (NSERC) PromoScience Program CKISS developed a ‘Citizen Science: Frog Watching Program’ that was delivered to grade eight students at the Rossland Summit School on September 18, 2018. 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.

Jubilee Wetland frog watching

Students received training on how to identify both native and invasive frogs using a dichotomous key and by listening to their different calls. They were 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 to 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.

Students recording their findings on IAAP forms

You can be a citizen scientist too by visiting for information on how to identify bullfrogs, and other invasive species.


Bullfrog sightings can be reported to:

Phone: 250-354-6333


** when reporting sightings, please note where and when you spotted/heard it and take a photo if possible.

For more information, Laurie Frankcom, Central Kootenay Invasive Species Society, at 844.352.1160 or

Our Funders:

We acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC), which invests annually over $1 billion in people, discovery and innovation.

Cette recherche a été financée par le Conseil de recherches en sciences naturelles et en génie du Canada (CRSNG), qui investit chaque année plus d’un milliard de dollars pour soutenir les gens, la découverte et l’innovation.