Pingo Canadian Landmark, also known as Pingo National Landmark, is a natural area protecting eight
pingo
Pingos are intrapermafrost ice-cored hills, high and in diameter. They are typically conical in shape and grow and persist only in permafrost environments, such as the Arctic and subarctic. A pingo is a periglacial landform, which is define ...
s near
Tuktoyaktuk
Tuktoyaktuk , or ''Tuktuyaaqtuuq'' (Inuvialuktun: ''it looks like a caribou''), is an Inuvialuit hamlet located in the Inuvik Region of the Northwest Territories, Canada, at the northern terminus of the Inuvik–Tuktoyaktuk Highway.Montgomery, ...
,
Northwest Territories
The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. ...
. It is in a coastal region of the
Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, a ...
which contains approximately 1,350 Arctic ice dome hills—approximately one quarter of the world's pingos.
History
The area has been a focus of scientific study for over 50 years, and research here has formed the basis of current understanding about the origin and growth of pingos. The region was first identified as a site of national significance in 1978, and landmark status was proposed. Legislation creating it in 1984 formed part of the Inuvialuit Final Agreement (officially, the Western Arctic (Inuvialuit) Claims Settlement Act (1984)). It provided for cooperative management of the Landmark between the
Government of Canada
The government of Canada (french: gouvernement du Canada) is the body responsible for the federal administration of Canada. A constitutional monarchy, the Crown is the corporation sole, assuming distinct roles: the executive, as the ''Crown ...
, the Inuvialuit Land Administration, and the people of Tuktoyaktuk. It reserved subsurface rights for the
Inuvialuit
The Inuvialuit (sing. Inuvialuk; ''the real people'') or Western Canadian Inuit are Inuit who live in the western Canadian Arctic region. They, like all other Inuit, are descendants of the Thule who migrated eastward from Alaska
Alask ...
, federal jurisdiction for the surface, and that the pingos would be preserved unimpaired.
Although a nationwide landmarks program was envisioned at its creation, Pingo remains the country's only National Landmark.
Geography
The Landmark comprises an area roughly , just west of Tuktoyaktuk, and includes Ibyuk Pingo—
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
's highest, exceeded in height only by Kadleroshilik Pingo in Alaska—at . The Landmark, which lies within the
Inuvialuit Settlement Region
The Inuvialuit Settlement Region, abbreviated as ISR ( ikt, Inuvialuit Nunangit Sannaiqtuaq – INS; french: Région désignée des Inuvialuit – RDI), located in Canada's western Arctic, was designated in 1984 in the Inuvialuit Final Agreement ...
, is managed by
Parks Canada
Parks Canada (PC; french: Parcs Canada),Parks Canada is the applied title under the Federal Identity Program; the legal title is Parks Canada Agency (). is the agency of the Government of Canada which manages the country's 48 National Parks, th ...
Beaufort Sea
The Beaufort Sea (; french: Mer de Beaufort, Iñupiaq: ''Taġiuq'') is a marginal sea of the Arctic Ocean, located north of the Northwest Territories, the Yukon, and Alaska, and west of Canada's Arctic islands. The sea is named after Sir Fr ...
which is quite flat, pingos dominate the skyline, rising from , in various stages of growth and collapse. Ibyuk Pingo, the highest, continues to grow about per year, and is estimated to be at least 1,000 years old. Unique to areas of
permafrost
Permafrost is ground that continuously remains below 0 °C (32 °F) for two or more years, located on land or under the ocean. Most common in the Northern Hemisphere, around 15% of the Northern Hemisphere or 11% of the global surface ...
, pingos have formed here thanks to numerous lakes in the Tuktoyaktuk Peninsula.
Geology
Pingos
The Tuktoyaktuk Peninsula has greatest concentration of pingos in the world with a total of 1,350 pingos. These pingos formed in one of two distinct ways: hydrostatically and
hydraulically
Hydraulics (from Greek language, Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is th ...
. Hydrostatic pingos are the result of closed systems caused by continuous permafrost where there is an impermeable ground layer, leading to the build up of
hydrostatic pressure
Fluid statics or hydrostatics is the branch of fluid mechanics that studies the condition of the equilibrium of a floating body and submerged body "fluids at hydrostatic equilibrium and the pressure in a fluid, or exerted by a fluid, on an imme ...
. Hydraulic pingos are caused by open systems where
groundwater
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidate ...
massive ice
Massive is an adjective related to mass.
Massive may refer to:
Arts, entertainment, and media
* Massive (band), an Australian Hard Rock band
* Massive Attack, a British musical group, who were temporarily known as Massive in 1991
* "Massive" (s ...
. One section of the frozen
groundwater
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidate ...
, part of an eroded hillside by the sea, is over long, and high. Other less visible ice beds in the region are over thick. This type of ice is found in permafrost, and can be thousands of years old.
The permafrost environment of the Landmark also hosts wedge ice. These are vertical masses of ice that form after water freezes in the cracks around ground that has contracted due to extreme cold. When ice wedges connect to one another, they can form
tundra polygons
In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian language, Russian (') from the Kildin Sámi language, Kildin Sámi wo ...
. These polygons are most striking when viewed from the air.
Ecology
Flora
There are an estimated 1200 different
plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...
species that can be found at the park.
Shrubs
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
that can be found include
arctic willow
''Salix arctica'', the Arctic willow, is a tiny creeping willow (family Salicaceae). It is adapted to survive in Arctic conditions, specifically tundras.
Description
''S. arctica'' is typically a low shrub growing to only in height, rarely to ...
Labrador tea
Labrador tea is a common name for three closely related plant species in the genus ''Rhododendron'' as well as an herbal tea made from their leaves.
All three species are primarily wetland plants in the heath family. The herbal tea has been a ...
, and
dwarf birch
''Betula nana'', the dwarf birch, is a species of birch in the family Betulaceae, found mainly in the tundra of the Arctic region.
Description
It is a monoecious, deciduous shrub growing up to high. The bark is non-peeling and shiny red-copper ...
. Several different
berries
A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...
such as
cranberries
Cranberries are a group of evergreen dwarf shrubs or trailing vines in the subgenus ''Oxycoccus'' of the genus ''Vaccinium''. In Britain, cranberry may refer to the native species ''Vaccinium oxycoccos'', while in North America, cranberry m ...
,
cloudberries
''Rubus chamaemorus'' is a species of flowering plant in the rose family Rosaceae, native to cool temperate regions, alpine and arctic tundra and boreal forest. This herbaceous perennial produces amber-colored edible fruit similar to the blackb ...
, and
blueberries
Blueberries are a widely distributed and widespread group of perennial flowering plants with blue or purple berries. They are classified in the section ''Cyanococcus'' within the genus ''Vaccinium''. ''Vaccinium'' also includes cranberries, bi ...
can be found in the park.
Non-vascular plants
Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Instead, they may possess simpler tissues that have specialized functions for the internal transport of water.
Non-vascular plants include two distantly rel ...
such as
sphagnum moss
''Sphagnum'' is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, peat moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of ''Sphagnum'' can store wa ...
and leaf
lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship. As a result of the permafrost and short growing season of the park what few
trees
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are u ...
can be found are in a stunted
krummholz
''Krummholz'' (german: krumm, "crooked, bent, twisted" and ''Holz'', "wood") — also called ''knieholz'' ("knee timber") — is a type of stunted, deformed vegetation encountered in the subarctic and subalpine
Montane ecosystems are fou ...
form.
Fauna
Animals that inhabit this park include
grizzly
The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America.
In addition to the mainland grizzly (''Ursus arctos horri ...
and
polar bear
The polar bear (''Ursus maritimus'') is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the largest extant bear specie ...
s,
wolf
The wolf (''Canis lupus''; : wolves), also known as the gray wolf or grey wolf, is a large canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, and gray wolves, as popularly u ...
packs, two species of
fox
Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush'').
Twelve sp ...
, and
Arctic ground squirrel
The Arctic ground squirrel (''Urocitellus parryii'') (Inuktitut: ''ᓯᒃᓯᒃ, siksik'') is a species of ground squirrel native to the Arctic and Subarctic of North America and Asia. People in Alaska, particularly around the Aleutians, refer to ...
s. Birds that either nest or migrate around the park are brant geese,
tundra swan
The tundra swan (''Cygnus columbianus'') is a small swan of the Holarctic. The two taxa within it are usually regarded as conspecific, but are also sometimes split into two species: Bewick's swan (''Cygnus bewickii'') of the Palaearctic and the w ...
s, lesser
snow geese
The snow goose (''Anser caerulescens'') is a species of goose native to North America. Both white and dark morphs exist, the latter often known as blue goose. Its name derives from the typically white plumage. The species was previously placed ...
,
loon
Loons (North American English) or divers (British / Irish English) are a group of aquatic birds found in much of North America and northern Eurasia. All living species of loons are members of the genus ''Gavia'', family Gaviidae and order Gavi ...
s, and
greater white-fronted geese
The greater white-fronted goose (''Anser albifrons'') is a species of goose related to the smaller lesser white-fronted goose (''A. erythropus''). It is named for the patch of white feathers bordering the base of its bill, in fact ''albifrons ...
. Ducks such as
mallard
The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa, and has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...
,
green-winged teal
The green-winged teal (''Anas carolinensis'') is a common and widespread duck that breeds in the northern areas of North America except on the Aleutian Islands. It was considered Conspecificity, conspecific with the Eurasian teal (''A. crecca'') ...
,
king eider
The king eider (pronounced ) (''Somateria spectabilis'') is a large sea duck that breeds along Northern Hemisphere Arctic coasts of northeast Europe, North America and Asia. The birds spend most of the year in coastal marine ecosystems at high l ...
,
common eider
The common eider (pronounced ) (''Somateria mollissima''), also called St. Cuthbert's duck or Cuddy's duck, is a large ( in body length) sea-duck that is distributed over the northern coasts of Europe, North America and eastern Siberia. It bree ...
, and
oldsquaw
The long-tailed duck (''Clangula hyemalis''), formerly known as oldsquaw, is a medium-sized sea duck that breeds in the tundra and taiga regions of the arctic and winters along the northern coastlines of the Atlantic and Pacific Oceans. It is th ...
are common to this area as well as a variety of
gull
Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns and skimmers and only distantly related to auks, and even more distantly to waders. Until the 21st century, m ...
s and shorebird species.
Visiting the Landmark
In August 2010 a boardwalk trail was completed with a boat launch, dock and viewing platforms; interpretive signage is planned by
Parks Canada
Parks Canada (PC; french: Parcs Canada),Parks Canada is the applied title under the Federal Identity Program; the legal title is Parks Canada Agency (). is the agency of the Government of Canada which manages the country's 48 National Parks, th ...
for self-guided tours. Local tour operators provide guided access to the site, which is easiest by boat. Hiking provides a more challenging option, but no matter how visitors access the site, Arctic weather and varying water levels can force a change of plans and an alternate route of return.