Why are mosquitoes plentiful in the Northwest Territories during summer?

Mosquitoes are plentiful in the Northwest Territories during the summer primarily due to the region's unique landscape and climate conditions.

Across the territory, particularly in the tundra regions, the presence of shallow permafrost prevents meltwater and rainfall from infiltrating the ground. This, combined with the flatness of the terrain, creates widespread, wet, and boggy conditions throughout the growing season. These areas of standing water provide ideal breeding grounds for mosquitoes, allowing their populations to flourish during the warmer summer months.123