Species at Risk
When one tugs at a single thing in nature, he finds it attached to the rest of the world. John Muir
Pandas and whooping cranes - these animals have made us aware that threats to plants and animals are global. You might be surprised, however, to learn that species may be at risk even within our national parks.
In Canada the Species at Risk Act (SARA), together with provincial and territorial legislation, protects at risk plants and animals. Under SARA, the Canadian Endangered Species Conservation Council (CESCC), provides national leadership for the protection of species at risk .
Through the Canada National Parks Act, all plants, animals and natural objects in national parks are protected. Parks Canada gives special attention to species listed at risk in the SARA. In order to protect these species, Parks Canada must:
- Solidify our knowledge of those species within our protected areas; and
- Work with partners to protect and recover them.
Species at risk are categorized as either:
- Special concern - particularly sensitive to human activities or natural events
- Threatened - likely to become endangered if factors impacting it are not changed
- Endangered - facing imminent extirpation or extinction
Much of the progress in recovering a species at risk can be credited to better management practices, as well as public support and involvement. Monitoring and conserving wildlife species and their habitat is essential to the protection and recovery of species at risk and to prevent other species from becoming at risk in the first place.
Species at risk in Waterton Lakes National Park
Halfmoon Hairstreak © Norbert Kondola
(Satyrium semiluna) - Endangered
This inconspicuous little brownish-grey butterfly is found in the fescue grasslands of Waterton. Research is underway to determine if it is a separate species from that reported in British Columbia. This is the only known population of this species in a national park.
Westslope Cutthroat Trout
(Oncorhynchus clarkia lewisi) - assessed as Threatened (undergoing public consultation prior to legal listing)
Westslope Cutthroat Trout © Karl Geist
From 1928 to 1972, park waters were stocked with hatchery raised non-native rainbow trout. Competition for food and habitat, plus hybridization, has possibly extirpated pure cutthroat trout from the park.
(Chordeiles minor) - Threatened
Common Nighthawk © Parks Canada
Like other insect-eating birds, common nighthawks may be declining because their prey is affected by pesticides. Waterton has a small population that breeds in rocky habitat on alluvial fans and gravel bars in rivers.
(Contopus cooperi) - Threatened
Olive-sided flycatcher © Nick Saunders
These small, inconspicuous birds are easy to identify by their popular loud call which sounds like “Quick! three beers”. They live on avalanche slopes and shrubby mountainsides. Outside of protected areas, this habitat is being affected by resource extraction activities.
(Isoetes bolanderi) - Threatened
Bolander's Quillwort © Parks Canada
The entire Canadian population of Bolander's quillwort is located in only two high elevation ponds in Waterton, so it could easily be destroyed by a single catastrophic event.
(Melanerpes lewis) - Special concern
Lewis's Woodpecker © Parks Canada
Lewis's Woodpeckers breed in British Columbia, and are occasionally found on the lower mountain slopes of western Alberta, including Waterton. Over the past century, both the global and Canadian populations have declined, primarily due to loss of habitat.
(Numenius americanus) - Special concern
Long-billed Curlew © Parks Canada / Wayne Lynch
Although protected from hunting, their numbers have declined steadily since the early 1900's, partially due to habitat loss. Long-billed Curlews are also found in Grasslands National Park.
(Asio flammeus) - Special concern
Short-eared owl © Nick Saunders - saskbirder.com
Short-eared owls are rare visitors to Waterton. They are declining due to loss of breeding habitat, as well as a reduction in the small mammals they hunt. .
Northern Leopard Frog
Northern Leopard Frog © Parks Canada / Tawnya Hewitt
The Northern Leopard Frog has been mysteriously disappearing since the 1960's. They have not been seen in Waterton since 1980. Restoration efforts to help this endangered amphibian regain its foothold in the park have been unsuccessful. It is currently extirpated from Waterton.
(Bufo boreas) – Special Concern
Western Toad © Parks Canada
Since populations have declined in other parts of their range, Waterton's populations are being closely monitored.