Northern tall grasslands
Encyclopedia
The Northern tall grasslands is one of 867 terrestrial ecoregion
s defined by the World Wide Fund for Nature
. This ecoregion largely follows the Red River Valley
in the Canadian
province
of Manitoba
and the American
states of North Dakota
and Minnesota
.
with moderate precipitation
, usually between 450-700mm. Winter
s here are very cold, with a mean winter temperature of -12.5 C, and summer
s are warm, with a mean temperature of 16 °C (60.8 °F). The ecoregion's mean annual temperature is 2.5 °C (36.5 °F).
es include Big Bluestem (Andropogon gerardii), switchgrass (Panicum virgatum) and Indiangrass (Sorghastrum nutans
). In wetter areas, trembling aspen (Populus tremuloides
) and Bur Oak (Quercus macrocarpa) can be found.
(Bison bison) and elk
(Cervus canadensis), which were hunted by the Gray Wolf
(Canis lupus) and coyote (Canis latrans). All of these save for the coyote have been largely eliminated from the region, though the bison and wolf are recovering. Other, more common species in the ecoregion include white-tailed deer
(Odocoileus virginianus), rabbit
(Sylvilagus spp.), ground squirrel
(Spermophilus
spp.) and large populations of waterfowl.
Ecoregion
An ecoregion , sometimes called a bioregion, is an ecologically and geographically defined area that is smaller than an ecozone and larger than an ecosystem. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural...
s defined by the World Wide Fund for Nature
World Wide Fund for Nature
The World Wide Fund for Nature is an international non-governmental organization working on issues regarding the conservation, research and restoration of the environment, formerly named the World Wildlife Fund, which remains its official name in Canada and the United States...
. This ecoregion largely follows the Red River Valley
Red River of the North
The Red River is a North American river. Originating at the confluence of the Bois de Sioux and Otter Tail rivers in the United States, it flows northward through the Red River Valley and forms the border between the U.S. states of Minnesota and North Dakota before continuing into Manitoba, Canada...
in the Canadian
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
province
Provinces and territories of Canada
The provinces and territories of Canada combine to make up the world's second-largest country by area. There are ten provinces and three territories...
of Manitoba
Manitoba
Manitoba is a Canadian prairie province with an area of . The province has over 110,000 lakes and has a largely continental climate because of its flat topography. Agriculture, mostly concentrated in the fertile southern and western parts of the province, is vital to the province's economy; other...
and the American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
states of North Dakota
North Dakota
North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....
and Minnesota
Minnesota
Minnesota is a U.S. state located in the Midwestern United States. The twelfth largest state of the U.S., it is the twenty-first most populous, with 5.3 million residents. Minnesota was carved out of the eastern half of the Minnesota Territory and admitted to the Union as the thirty-second state...
.
Climate
The Northern tall grasslands have a humid continental climateHumid continental climate
A humid continental climate is a climatic region typified by large seasonal temperature differences, with warm to hot summers and cold winters....
with moderate precipitation
Precipitation (meteorology)
In meteorology, precipitation In meteorology, precipitation In meteorology, precipitation (also known as one of the classes of hydrometeors, which are atmospheric water phenomena is any product of the condensation of atmospheric water vapor that falls under gravity. The main forms of precipitation...
, usually between 450-700mm. Winter
Winter
Winter is the coldest season of the year in temperate climates, between autumn and spring. At the winter solstice, the days are shortest and the nights are longest, with days lengthening as the season progresses after the solstice.-Meteorology:...
s here are very cold, with a mean winter temperature of -12.5 C, and summer
Summer
Summer is the warmest of the four temperate seasons, between spring and autumn. At the summer solstice, the days are longest and the nights are shortest, with day-length decreasing as the season progresses after the solstice...
s are warm, with a mean temperature of 16 °C (60.8 °F). The ecoregion's mean annual temperature is 2.5 °C (36.5 °F).
Flora
Dominant grassGrass
Grasses, or more technically graminoids, are monocotyledonous, usually herbaceous plants with narrow leaves growing from the base. They include the "true grasses", of the Poaceae family, as well as the sedges and the rushes . The true grasses include cereals, bamboo and the grasses of lawns ...
es include Big Bluestem (Andropogon gerardii), switchgrass (Panicum virgatum) and Indiangrass (Sorghastrum nutans
Sorghastrum nutans
Sorghastrum nutans, commonly known as Yellow Indiangrass, is a North American prairie grass found in the central and eastern United States and Canada, especially in the Great Plains...
). In wetter areas, trembling aspen (Populus tremuloides
Populus tremuloides
Populus tremuloides is a deciduous tree native to cooler areas of North America, commonly called quaking aspen, trembling aspen, American aspen, and Quakies,. The trees have tall trunks, up to 25 metres, with smooth pale bark, scarred with black. The glossy green leaves, dull beneath, become golden...
) and Bur Oak (Quercus macrocarpa) can be found.
Fauna
Like other North American prairie ecoregions, the Northern tall grasslands once supported large herds of bisonPlains Bison
The Plains Bison or Common bison is one of two subspecies/ecotypes of the American Bison, the other being the Wood Bison . Furthermore, it has been suggested that the Plains Bison consists of a northern and a southern subspecies, bringing the total to three...
(Bison bison) and elk
Elk
The Elk is the large deer, also called Cervus canadensis or wapiti, of North America and eastern Asia.Elk may also refer to:Other antlered mammals:...
(Cervus canadensis), which were hunted by the Gray Wolf
Gray Wolf
The gray wolf , also known as the wolf, is the largest extant wild member of the Canidae family...
(Canis lupus) and coyote (Canis latrans). All of these save for the coyote have been largely eliminated from the region, though the bison and wolf are recovering. Other, more common species in the ecoregion include white-tailed deer
White-tailed Deer
The white-tailed deer , also known as the Virginia deer or simply as the whitetail, is a medium-sized deer native to the United States , Canada, Mexico, Central America, and South America as far south as Peru...
(Odocoileus virginianus), rabbit
Rabbit
Rabbits are small mammals in the family Leporidae of the order Lagomorpha, found in several parts of the world...
(Sylvilagus spp.), ground squirrel
Ground squirrel
The ground squirrels are members of the squirrel family of rodents which generally live on or in the ground, rather than trees. The term is most often used for the medium-sized ground squirrels, as the larger ones are more commonly known as marmots or prairie dogs, while the smaller and less...
(Spermophilus
Spermophilus
Spermophilus is a genus of ground squirrels in the family Sciuridae. The majority of ground squirrel species, over 40 in total, are usually placed in this genus...
spp.) and large populations of waterfowl.
See Also
|
Manitoba Tall Grass Prairie Preserve The Manitoba Tall Grass Prairie Preserve is located in southeastern Manitoba near Gardenton and Vita, this is about south of Steinbach, Manitoba. It is one of the last remaining stands of tallgrass prairie in Manitoba and is part of the Tallgrass Aspen Parkland conservation area in Manitoba and... Temperate grasslands, savannas, and shrublands Temperate grasslands, savannas, and shrublands is a terrestrial biome whose predominant vegetation consists of grasses and/or shrubs. The climate is temperate and semi-arid to semi-humid.... |