The Southern Hudson Bay taiga is a terrestrial

ecoregion An ecoregion (ecological region) is an ecological and geographic area that exists on multiple different levels, defined by type, quality, and quantity of environmental resources. Ecoregions cover relatively large areas of land or water, and c ...

, as classified by the

World Wildlife Fund The World Wide Fund for Nature (WWF) is a Swiss-based international non-governmental organization founded in 1961 that works in the field of wilderness preservation and the reduction of human impact on the environment. It was formerly named the ...

, which extends along the southern coast of

Hudson Bay Hudson Bay, sometimes called Hudson's Bay (usually historically), is a large body of Saline water, saltwater in northeastern Canada with a surface area of . It is located north of Ontario, west of Quebec, northeast of Manitoba, and southeast o ...

and resides within the larger

taiga Taiga or tayga ( ; , ), also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, and larches. The taiga, or boreal forest, is the world's largest land biome. In North A ...

biome A biome () is a distinct geographical region with specific climate, vegetation, and animal life. It consists of a biological community that has formed in response to its physical environment and regional climate. In 1935, Tansley added the ...

. The region is nearly coterminous with the Hudson Plain, a Level I ecoregion of North America as designated by the

Commission for Environmental Cooperation The Commission for Environmental Cooperation (CEC; ; ) is an intergovernmental organization established by Canada, Mexico, and the United States to implement the North American Agreement on Environmental Cooperation (NAAEC), the environmental si ...

(CEC) in its ''

North American Environmental Atlas The ''North American Environmental Atlas'' is an interactive mapping tool created through a partnership of government agencies in Canada, Mexico and the United States, along with the Commission for Environmental Cooperation, a trilateral internati ...

''. Entirely located in

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

, the Southern Hudson Bay taiga covers an area of approximately and crosses the provinces of

Manitoba Manitoba is a Provinces and territories of Canada, province of Canada at the Centre of Canada, longitudinal centre of the country. It is Canada's Population of Canada by province and territory, fifth-most populous province, with a population ...

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

, and the western portion of

Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...

. Various islands in

James Bay James Bay (, ; ) is a large body of water located on the southern end of Hudson Bay in Canada. It borders the provinces of Quebec and Ontario, and is politically part of Nunavut. Its largest island is Akimiski Island. Numerous waterways of the ...

which belong to

Nunavut Nunavut is the largest and northernmost Provinces and territories of Canada#Territories, territory of Canada. It was separated officially from the Northwest Territories on April 1, 1999, via the ''Nunavut Act'' and the Nunavut Land Claims Agr ...

are also considered to be part of the ecoregion. It includes the largest continuous

wetland A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

in the world. It covers nearly a quarter of

's landmass, and 3.6% of Canada's total area, Its historical prominence is due to the harshness endured by pioneer explorers who established fortifications for

Hudson's Bay Company The Hudson's Bay Company (HBC), originally the Governor and Company of Adventurers of England Trading Into Hudson’s Bay, is a Canadian holding company of department stores, and the oldest corporation in North America. It was the owner of the ...

, and as a result of regional wars between France and Britain. Today, it is primarily noted for the well-known

Polar Bear Provincial Park Polar Bear Provincial Park is an isolated wilderness park in the far north of Ontario, Canada. It lies on the western shore where James Bay joins Hudson Bay. The terrain is part of the Hudson Bay Lowlands and features unspoiled low-lying tundra i ...

, and to a lesser extent

Wapusk National Park Wapusk National Park () is Canada's 37th national park, established in 1996. The name comes from the Cree word for polar bear (''wâpask''). Located on the shores of Hudson Bay in the Hudson Plains ecozone south of Churchill, its accessibil ...

, as well as its vast wetlands which are used by

migratory birds Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Migration is inherently risky, due to predation and mortality. The ...

Geography

The Southern Hudson Bay taiga is contained within the conceptually larger

Nearctic realm The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface. The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America t ...

and possesses a number of neighbouring

ecoregions An ecoregion (ecological region) is an ecology, ecological and Geography, geographic area that exists on multiple different levels, defined by type, quality, and quantity of environmental resources. Ecoregions cover relatively large areas of la ...

including the

Eastern Canadian Shield taiga The Eastern Canadian Shield taiga is an ecoregion of Canada as defined by the World Wildlife Fund (WWF) categorization system. Setting Located in northeastern Canada, this ecoregion covers a large part of northern Quebec and most of Labrador, re ...

, Northern Canadian Shield taiga, Central Canadian Shield forests, and

Midwestern Canadian Shield forests The Midwest Canadian Shield Forests is an ecoregion in Canada, classified as a Taiga and Boreal Forests Biome. Setting This is an area of rolling hills with lakes both small and large, wetlands, and rocky outcrops on the Canadian Shield in nor ...

. Prominent geological features in the region include the Hudson Platform and an underlying layer of

Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ...

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

bedrock. Its soils, which are primarily Gelic and Dystric

Histosols In both the World Reference Base for Soil Resources (WRB) and the USDA soil taxonomy, a Histosol is a soil consisting primarily of organic materials. They are defined as having or more of organic soil material starting within 40 cm from the so ...

and Eutric

Gleysols A gleysol or gley soil is a hydric soil that unless drained is saturated with groundwater for long enough to develop a characteristic colour pattern. The pattern is essentially made up of reddish, brownish, or yellowish colours at surfaces of so ...

, are characterized by shallow layers of

permafrost Permafrost () is soil or underwater sediment which continuously remains below for two years or more; the oldest permafrost has been continuously frozen for around 700,000 years. Whilst the shallowest permafrost has a vertical extent of below ...

, slightly acidic pH levels, and hydromorphic conditions. The Southern Hudson Bay taiga represents an area where a number of hydrologically significant rivers, such as the

Nelson River The Nelson River is a river of north-central North America, in the Provinces and territories of Canada, Canadian province of Manitoba. The river drains Lake Winnipeg and runs before it ends in Hudson Bay near Port Nelson, Manitoba, Port Nels ...

and the

Mattagami River The Mattagami River is a river in Northern Ontario, Canada. The Mattagami flows from its source at Mattagami Lake in Township (Canada)#Ontario, geographic Gouin Township in the Unorganized North Sudbury District, Unorganized North Part of Sudbur ...

, deposit their headwaters from farther inland into the

Arctic Ocean The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions. It spans an area of approximately and is the coldest of the world's oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, ...

via

. Alternative geographic classifications also commonly refer to the region as the

Hudson Bay Lowlands The Hudson Bay Lowlands is a vast wetland located between the Canadian Shield and southern shores of Hudson Bay and James Bay. Most of the area lies within the province of Ontario, with smaller portions reaching into Manitoba and Quebec. Many wide ...

. The

Palaeozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of ...

and

Proterozoic The Proterozoic ( ) is the third of the four geologic eons of Earth's history, spanning the time interval from 2500 to 538.8 Mya, and is the longest eon of Earth's geologic time scale. It is preceded by the Archean and followed by the Phanerozo ...

sedimentary Sedimentary rocks are types of rock formed by the cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedime ...

deposits overlaying the

bedrock In geology, bedrock is solid rock that lies under loose material ( regolith) within the crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of bed ...

have formed into a wide and level plain characterised by

raised beach A raised beach, coastal terrace,Pinter, N (2010): 'Coastal Terraces, Sealevel, and Active Tectonics' (educational exercise), from 2/04/2011/ref> or perched coastline is a relatively flat, horizontal or gently inclined surface of marine origin, ...

es and

river delta A river delta is a landform, archetypically triangular, created by the deposition of the sediments that are carried by the waters of a river, where the river merges with a body of slow-moving water or with a body of stagnant water. The creat ...

s, with an elevation rarely exceeding 120 m. The relatively flat land slopes gently toward the two bays, which act as a

drainage basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

for the region. However, the relatively poor drainage system has spurred the natural development of numerous

s. It is encircled by the

Canadian Shield The Canadian Shield ( ), also called the Laurentian Shield or the Laurentian Plateau, is a geologic shield, a large area of exposed Precambrian igneous and high-grade metamorphic rocks. It forms the North American Craton (or Laurentia), th ...

, with which it overlaps in a few areas to the east and west. To its north is the cold

Arctic Archipelago Marine The Arctic Archipelago Marine Ecozone, as defined by the Commission for Environmental Cooperation (CEC), is a marine ecozone in the Canadian Arctic, encompassing Hudson Bay, James Bay, the internal waters and some shores of the islands in the Cana ...

ecozone, and to the south is the milder Boreal Shield. Hence, this ecozone is transitional, which is easily evident as it transforms from

barren Barren primarily refers to a state of barrenness (infertility) Barren may also refer to: Places * Barren, Missouri *Barren County, Kentucky *Barren Island (Andaman Islands) * Barren Island, Brooklyn * Barren River Lake Other uses * ''Barren Coun ...

tundra In physical geography, a tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. There are three regions and associated types of tundra: #Arctic, Arctic, Alpine tundra, Alpine, and #Antarctic ...

in the north to open

forest A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...

s in the south. These forests resemble those of the

boreal Boreal, northern, of the north. Derived from the name of the god of the north wind from Ancient Greek civilisation, Boreas (god), Boreas. It may also refer to: Climatology and geography *Boreal (age), the first climatic phase of the Blytt-Sernand ...

zone, with sparser

vegetation Vegetation is an assemblage of plants and the ground cover they provide. It is a general term, without specific reference to particular Taxon, taxa, life forms, structure, Spatial ecology, spatial extent, or any other specific Botany, botanic ...

. Thousands of depressions carved by retreating

glacier A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...

s have become

lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

s and wetlands. The Hudson Plains is also noted for

coastal marsh A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, ...

es and extensive

tidal flat Mudflats or mud flats, also known as tidal flats or, in Ireland, slob or slobs, are coastal wetlands that form in intertidal areas where sediments have been deposited by tides or rivers. A global analysis published in 2019 suggested that tidal ...

s, with

tidal marsh A tidal marsh (also known as a type of "tidal wetland") is a marsh found along rivers, coasts and estuaries which floods and drains by the tidal movement of the adjacent estuary, sea or ocean.

es along the coast of Hudson Bay. Belts of

es are evident where rebound from glacier retreat is most prominent.

Climate

The ecoregion has a

subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of ...

under the Köppen-Geiger climate classification system and is significantly influenced by the adjacent marine area of Hudson Bay, which features cold and moisture-laden low-pressure systems. Typical seasonal conditions in the Southern Hudson Bay taiga consist of brief, cool summers with significant daylight, and cold winters with prolonged darkness. Frigid polar high-pressure air masses commonly reach the area. Average temperatures range from 10.5°C to 11.5°C during summer months, -19°C to -16°C during winter months, and -5°C to -2°C throughout the year. Precipitation levels vary greatly within the region due to differences in temperature, with the eastern and western areas receiving an annual average of 500-800 mm and the northern areas as little as 400 mm.

Flora and fauna

Referred to as an "insect-infested landscape of

bog A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and musk ...

and

fog Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. Reprint from Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenc ...

", it teems with large

insect Insects (from Latin ') are Hexapoda, hexapod invertebrates of the class (biology), class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (Insect morphology#Head, head, ...

populations that are a food source for migratory

waterbirds A water bird, alternatively waterbird or aquatic bird, is a bird that lives on or around water. In some definitions, the term ''water bird'' is especially applied to birds in freshwater ecosystems, although others make no distinction from seabi ...

. The Hudson Plains have become "notorious for their populations of biting insects". Vegetation is somewhat limited, with the northern areas abutting the Arctic Archipelago Marine being nearly treeless, whereas the southern extent, adjacent to the Boreal Shield, have open forest.

Alder Alders are trees of the genus ''Alnus'' in the birch family Betulaceae. The genus includes about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species ex ...

willow Willows, also called sallows and osiers, of the genus ''Salix'', comprise around 350 species (plus numerous hybrids) of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known ...

black spruce ''Picea mariana'', the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of Newfoundland and Labrador and is tha ...

and

tamarack ''Larix laricina'', commonly known as the tamarack, hackmatack, eastern larch, black larch, red larch, or American larch, is a species of larch native to Canada, from eastern Yukon and Inuvik, Northwest Territories east to Newfoundland, and als ...

are the most common plant species in the treed bogs and

fen A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetland along with marshes, swamps, and bogs. Bogs and fens, both peat-forming ecosystems, are also known as mires ...

s of the Hudson Plains, whereas

sphagnum ''Sphagnum'' is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of ''Sphagnum'' can store water, since ...

and

shrub A shrub or 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 by their multiple ...

s such as

crowberry ''Empetrum nigrum'', crowberry, black crowberry, mossberry, or, in western Alaska, Labrador, etc., blackberry, is a flowering plant species in the heather family Ericaceae with a near circumboreal distribution in the Northern Hemisphere. Desc ...

and

blueberry Blueberries are a widely distributed and widespread group of perennial flowering plants with blue or purple berries. They are classified in the section ''Cyanococcus'' with the genus ''Vaccinium''. Commercial blueberries—both wild (lowbush) ...

dominate the open bogs to the north, with

white spruce White spruce is a common name for several species of spruce (''Picea'') and may refer to: * '' Picea engelmannii'', native to the Rocky Mountains and Cascade Mountains of the United States and Canada * ''Picea glauca ''Picea glauca'', the whi ...

appearing further south. Poorly drained areas produce dense sedge, moss and lichen cover. The Hudson Plains also represent the southern extent of the

polar bear The polar bear (''Ursus maritimus'') is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can Hybrid (biology), interbreed. The polar bear is the largest extant species of bear ...

s yearly migratory route, which reaches the northwestern coast of Ontario. In autumn, polar bears migrate to the

ice pack An ice pack or gel pack is a portable bag filled with water, refrigerant gel, or liquid, meant to provide cooling. They can be divided into the reusable type, which works as a thermal mass and requires freezing, or the instant type, which coo ...

forming along the coast of Hudson Bay. The bears then follow the Hudson Bay Coast toward Churchill,

Mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...

s such as

moose The moose (: 'moose'; used in North America) or elk (: 'elk' or 'elks'; used in Eurasia) (''Alces alces'') is the world's tallest, largest and heaviest extant species of deer and the only species in the genus ''Alces''. It is also the tal ...

woodland caribou Woodland caribou may refer to two North American reindeer (''Rangifer tarandus'') populations: * Boreal woodland caribou * Migratory woodland caribou See also * Woodland Caribou Provincial Park Woodland Caribou Provincial Park is a provincia ...

and

black bear Black bear or Blackbear may refer to: Animals * American black bear (''Ursus americanus''), a North American bear species * Asian black bear (''Ursus thibetanus''), an Asian bear species Music * Black Bear (band), a Canadian First Nations group ...

s are comfortable in this environment, but smaller mammals are more common, including

muskrat The muskrat or common muskrat (''Ondatra zibethicus'') is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over various climates ...

weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slend ...

Arctic fox The Arctic fox (''Vulpes lagopus''), also known as the white fox, polar fox, or snow fox, is a small species of fox native to the Arctic regions of the Northern Hemisphere and common throughout the Tundra#Arctic tundra, Arctic tundra biome. I ...

es,

marten A marten is a weasel-like mammal in the genus ''Martes'' within the subfamily Guloninae, in the family Mustelidae. They have bushy tails and large paws with partially retractile claws. The fur varies from yellowish to dark brown, depending on ...

s, and

fishers Fisher is an archaic term for a fisherman, revived as gender-neutral. Fisher, Fishers or The Fisher may also refer to: Places Australia * Division of Fisher, an electoral district in the Australian House of Representatives, in Queensland *Elec ...

. The adjacent marine ecozone of the Arctic Archipelago Marine supports mammal populations of

walrus The walrus (''Odobenus rosmarus'') is a large pinniped marine mammal with discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. It is the only extant species in the family Odobeni ...

and

bearded A beard is the hair that grows on the jaw, chin, upper lip, lower lip, cheeks, and neck of humans and some non-human animals. In humans, beards are most commonly seen on pubescent or adult males, though women have been observed with beards a ...

harbour A harbor (American English), or harbour (Commonwealth English; see American and British English spelling differences#-our, -or, spelling differences), is a sheltered body of water where ships, boats, and barges can be Mooring, moored. The t ...

and

ringed Bird ringing (UK) or bird banding (US) is the attachment of a small, individually numbered metal or plastic tag to the leg or wing of a wild bird to enable individual identification. This helps in keeping track of the movements of the bird an ...

seals. Millions of migratory

shorebirds FIle:Vadare - Ystad-2021.jpg, 245px, A flock of Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflats in order to foraging, forage for food c ...

stage and nest in multiple areas of the Hudson Plains, particularly in three areas within Southern James Bay:

Akimiski Island Akimiski Island is the largest island in James Bay (a southeasterly extension of Hudson Bay), Canada, which is part of the Qikiqtaaluk Region of the territory of Nunavut. It has an area of , making it the 163rd largest island in the world, and C ...

, and the migratory bird sanctuaries at Hannah Bay and the mouth of the Moose River. Representative species include the

snow goose 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 ...

Canada goose The Canada goose (''Branta canadensis''), sometimes called Canadian goose, is a large species of goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North A ...

king eider The king eider (pronounced ) (''Somateria spectabilis'') is a large Merginae, sea duck that breeds along Northern Hemisphere Arctic coasts of northeast Europe, North America and Palearctic, Asia. The birds spend most of the year in coastal marine ...

swan Swans are birds of the genus ''Cygnus'' within the family Anatidae. The swans' closest relatives include the goose, geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe (biology) ...

loon Loons (North American English) or divers (British English, 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 (biolog ...

gyrfalcon The gyrfalcon ( or ) (), also abbreviated as gyr, is a bird of prey from the genus ''Falco'' (falcons and kestrels) and the largest species of the family Falconidae. A high-latitude species, the gyrfalcon breeds on the Arctic coasts and tundra, ...

, and

peregrine falcon The peregrine falcon (''Falco peregrinus''), also known simply as the peregrine, is a Cosmopolitan distribution, cosmopolitan bird of prey (raptor) in the family (biology), family Falconidae renowned for its speed. A large, Corvus (genus), cro ...

. Belonging to the

circumboreal The Circumboreal Region in phytogeography is a floristic region within the Holarctic Kingdom in Eurasia and North America, as delineated by such geobotanists as Josias Braun-Blanquet and Armen Takhtajan. It is the largest floristic region in ...

floristic region A phytochorion, in phytogeography, is a geographic area with a relatively uniform composition of plant species. Adjacent phytochoria do not usually have a sharp boundary, but rather a soft one, a transitional area in which many species from both re ...

, the Southern Hudson Bay taiga contains a total of 1178 different plant species – none of which are considered

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the area. The major plant communities in this

, which are characteristic of the

, primarily consist of black spruce (''

Picea mariana ''Picea mariana'', the black spruce, is a North American species of spruce tree in the Pinaceae, pine family. It is widespread across Canada, found in all 10 provinces and all 3 Canadian Arctic Lands, territories. It is the official tree of Newfo ...

'') and tamarack (''

Larix laricina ''Larix laricina'', commonly known as the tamarack, hackmatack, eastern larch, black larch, red larch, or American larch, is a species of larch native to Canada, from eastern Yukon and Inuvik, Northwest Territories east to Newfoundland, and als ...

'') forests. Species which commonly dominate the forest undergrowth are birch (''

Betula A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech- oak family Fagaceae. The genus ''Betula'' contains 3 ...

''), willow (''

Salix Willows, also called sallows and osiers, of the genus ''Salix'', comprise around 350 species (plus numerous hybrids) of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known ...

''), and marsh Labrador tea (''

Rhododendron tomentosum ''Rhododendron tomentosum'' ( syn. ''Ledum palustre''), commonly known as marsh Labrador tea, northern Labrador tea, marsh rosemary or wild rosemary, is a flowering plant in the subsection '' Ledum'' of the large genus ''Rhododendron'' in the fa ...

''). Due to the

conditions in the northern extent of the region, a latitudinal gradient of plant biodiversity exists which increases towards the south.

Wetlands A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor ( anoxic) processes taking place, especially ...

in this

are estimated to occupy between 50 and 75% of the land area. In terms of

species composition Relative species abundance is a component of biodiversity and is a measure of how common or rare a species is relative to other species in a defined location or community.Hubbell, S. P. 2001. ''The unified neutral theory of biodiversity and biogeog ...

, the animal populations of the Southern Hudson Bay taiga are largely transitional between those of the Central Canadian Shield forests and Low Arctic tundra. The region contains a total of 45

mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...

species, 160

bird Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a fou ...

species, and 2

reptile Reptiles, as commonly defined, are a group of tetrapods with an ectothermic metabolism and Amniotic egg, amniotic development. Living traditional reptiles comprise four Order (biology), orders: Testudines, Crocodilia, Squamata, and Rhynchocepha ...

species. The coastal areas of southern

are home to polar bears ('' Ursus marinus''), arctic foxes (''

Vulpes lagopus '' Vulpes '' is a genus of the subfamily Caninae. The members of this genus are colloquially referred to as true foxes, meaning they form a proper clade. The word "fox" occurs in the common names of all species of the genus, but also appears in ...

''), seals ('' Phocidae''), beluga whales ('' Delphinapterus leucas''), and tundra swans (''

Cygnus columbianus 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 ...

''). Approaching the Central Canadian Shield forests near

, the

gives way to moose (''

Alces ''Alces'' is a genus of artiodactyl mammals, that includes the largest species of the deer family. There are two species in genus: the moose The moose (: 'moose'; used in North America) or elk (: 'elk' or 'elks'; used in Eurasia) (''Alces al ...

''), black bears (''

Ursus americanus The American black bear (''Ursus americanus''), or simply black bear, is a species of medium-sized bear which is endemic to North America. It is the continent's smallest and most widely distributed bear species. It is an omnivore, with a diet v ...

''), wolves (''

Canis lupus The wolf (''Canis lupus''; : wolves), also known as the grey wolf or gray wolf, is a canine native to Eurasia and North America. More than thirty subspecies of ''Canis lupus'' have been recognized, including the dog and dingo, though gr ...

''), and Canada lynx (''

Lynx canadensis The Canada lynx (''Lynx canadensis'') or Canadian lynx is one of the four living species in the genus ''Lynx''. It is a medium-sized wild cat characterized by long, dense fur, triangular ears with black tufts at the tips, and broad, snowshoe ...

''). Other species which can be found throughout the entirety of the

are caribou (''

Rangifer tarandus The reindeer or caribou (''Rangifer tarandus'') is a species of deer with circumpolar distribution, native to Arctic, subarctic, tundra, boreal, and mountainous regions of Northern Europe, Siberia, and North America. It is the only represent ...

''), snowshoe hare (''

Lepus americanus The snowshoe hare (''Lepus americanus''), also called the varying hare or snowshoe rabbit, is a species of hare found in North America. It has the name "snowshoe" because of the large size of its hind feet. The animal's feet prevent it from sink ...

''), and Canada goose (''

Branta canadensis The Canada goose (''Branta canadensis''), sometimes called Canadian goose, is a large species of goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North A ...

'').

Human use

With an average population density estimated at less than 1 person/km², the majority of the human population in the Southern Hudson Bay taiga is concentrated in a number of smaller towns and communities located along the southern coast of

. These include Churchill,

Moosonee Moosonee () is a town in Northeastern Ontario, Canada, on the Moose River approximately south of James Bay. It is considered to be "the Gateway to the Arctic" and has Ontario's only saltwater port. Nearby, on Moose Factory Island, is the com ...

, and

Moose Factory Moose Factory is a community in the Cochrane District, Ontario, Canada. It is located on Moose Factory Island, near the mouth of the Moose River (Ontario), Moose River, which is at the southern end of James Bay. It was the first English language ...

as well as the First Nation communities of

Fort Severn Fort Severn, in present-day Annapolis, Maryland, was built in 1808 on the same site as an earlier American Revolutionary War fort of 1776. Although intended to guard Annapolis harbor from British attack during the War of 1812, it never saw act ...

, Fort Albany, and Attawapiskat. Much of the

is the traditional territory of the

Cree The Cree, or nehinaw (, ), are a Indigenous peoples of the Americas, North American Indigenous people, numbering more than 350,000 in Canada, where they form one of the country's largest First Nations in Canada, First Nations. They live prim ...

Dene The Dene people () are an Indigenous group of First Nations who inhabit the northern boreal, subarctic and Arctic regions of Canada. The Dene speak Northern Athabaskan languages and it is the common Athabaskan word for "people". The term ...

Inuit Inuit (singular: Inuk) are a group of culturally and historically similar Indigenous peoples traditionally inhabiting the Arctic and Subarctic regions of North America and Russia, including Greenland, Labrador, Quebec, Nunavut, the Northwe ...

, and

Métis The Métis ( , , , ) are a mixed-race Indigenous people whose historical homelands include Canada's three Prairie Provinces extending into parts of Ontario, British Columbia, the Northwest Territories and the northwest United States. They ha ...

peoples. The region also witnessed the development of the

during the 17th century and played an integral role in the

North American fur trade The North American fur trade is the (typically) historical Fur trade, commercial trade of furs and other goods in North America, beginning in the eastern provinces of French Canada and the northeastern Thirteen Colonies, American colonies (soon- ...

. It was part of a larger area referred to as

Rupert's Land Rupert's Land (), or Prince Rupert's Land (), was a territory in British North America which comprised the Hudson Bay drainage basin. The right to "sole trade and commerce" over Rupert's Land was granted to Hudson's Bay Company (HBC), based a ...

in which the

had exclusive commercial rights until it was sold to the Canadian government in 1870.

Conservation and threats

The

has classified the conservation status of the

as relatively stable/intact as a result of its sparse, low-impact human presence. It is therefore not part of the WWF's

Global 200 The Global 200 is the list of ecoregions identified by the World Wide Fund for Nature ( WWF), the global conservation organization, as priorities for conservation. According to WWF, an ecoregion is defined as a "relatively large unit of land or w ...

list of

most in need of conservation efforts. Approximately 9.32% of all lands in the Southern Hudson Bay taiga are considered protected including

, and Jog Lake Conservation Reserve. As a result of its more northern latitude, the area is not subject to intense

logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, trucksdeforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...

pressures. The primary conservation concerns for the region surround the proposed

hydroelectric Hydroelectricity, or hydroelectric power, is Electricity generation, electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity, almost 4,210 TWh in 2023, which is more than all other Renewable energ ...

projects near

and the regulation of hunt camps. Estimates indicate that the Southern Hudson Bay taiga will experience an increase in temperature of 3.39°C and an increase in precipitation of 13.32 mm by 2050 as a result of

climate change Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in ...

References

External links

{{commons category
WWF Report of Southern Hudson Bay Taiga Ecoregion
by the Nature Conservancy
FAO/UNESCO Soil Map of the WorldThe Atlas of CanadaMap of Traditional Indigenous Territories in North America
Ecoregions of Canada Nearctic ecoregions Taiga and boreal forests Hudson Bay Wetlands of Ontario Geography of Northern Ontario Plains of Canada Ecozones of Canada Ecozones and ecoregions of Manitoba Ecozones and ecoregions of Nunavut Ecozones and ecoregions of Ontario Ecozones and ecoregions of Quebec