Plant enthusiast Klaus Koehler made an intriguing discovery while exploring the Sylvia Grinnell Territorial Park near Iqaluit in July. He stumbled upon a rare plant species not commonly found in the Arctic, which he believes could have implications for the proliferation of invasive species in Northern regions as temperatures rise.
Koehler reached into a pond and retrieved a peculiar brownish plant known as bladderwort. Despite its unassuming appearance to the untrained eye, Koehler recognized the distinct features of the plant.
This carnivorous plant is adorned with small black bladders containing nearly digested flies. Typically found in more temperate climates, this insect-eating species rarely ventures into the tundra.
The only previous sighting of this plant in the area dates back to 2012 when a team of scientists discovered bladderwort near Kimmirut, approximately 120 kilometers southwest of Iqaluit. This finding was documented in the scientific journal Phytokeys.
During three expeditions to the Arctic, the scientific team uncovered over 30 previously unidentified plant species in the Arctic archipelago.
Koehler suspects that this discovery may signal a shift in the climate. While the Arctic has historically had minimal invasive species due to its harsh conditions, the warming climate is creating a more favorable environment for plants not typically found in the region.
This trend is expected to impact the ecosystem significantly. With longer vegetation periods in the Arctic, both invasive and native species are likely to extend their range into the region.
Paul Sokoloff, a senior research assistant at Ottawa’s Museum of Nature, shares Koehler’s concerns. He was part of the group that first found bladderwort in 2012. Sokoloff worries that the inadvertent introduction of plant seeds by birds, ships, and visitors to the Arctic could disrupt the delicate balance of native plant species.
While Koehler’s discovery may not pose an immediate threat, Sokoloff underscores the potential risks associated with invasive species. Over 2,500 species have the capacity to invade Arctic ecosystems, displacing native flora, according to a study by scientists from the Norwegian University of Science and Technology in 2025.
Koehler intends to collect a sample of the Iqaluit bladderwort for further analysis at the Museum of Nature, aiming to enhance scientists’ understanding of the plant’s northward expansion.