The main indicator of the alleged presence of this beetle in the Park's trees were rivers of sap, on the bark. An application to the federal court by the FPPP for a judicial review and an interim injunction against the cutting was successful, reflecting an ongoing evolution in environmental law. It could have been declared by the CFIA to be an already 'established' species. These biological mortality factors can drastically reduce beetle populations. Clistopyga sauberi Brauns.
Woodpeckers also eat larvae, and other birds, plus mammals, eat eggs and adults.