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Last Mountain Lake Bird Sanctuary
Last Mountain Lake Bird Sanctuary is a National Historic Site of Canada, located in the rural municipality of Last Mountain Valley No. 250 in Saskatchewan. The migratory bird sanctuary was the first established in North America. The area is within the Last Mountain Lake National Wildlife Area, an International Biological Program site, and includes adjacent uplands. The site is used as a staging or nesting area by numerous migratory and colonial bird species, including the sandhill crane and the endangered whooping crane. The lake has rich spawning grounds used by numerous fish species, including the vulnerable bigmouth buffalo. It was recognized as a National Historic Site of Canada in 1987, its centennial anniversary, for its undisturbed natural areas, among them the wetlands, shoreline, forest, and adjacent grasslands, and for being the first bird sanctuary in Canada. History In 1887, Lieutenant-Governor of the North-West Territories Edgar Dewdney recommended the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Last Mountain Lake
Last Mountain Lake, also known as Long Lake, is a prairie lake formed from glaciation 11,000 years ago. It is located in south central Saskatchewan, Canada, about north-west of the city of Regina. It flows into the Qu'Appelle River via Last Mountain Creek, which flows past Craven. It is approximately long, and wide at its widest point. It is the largest naturally occurring body of water in southern Saskatchewan. Only Lake Diefenbaker, which is man-made, is larger. The lake is a popular resort area for residents of south-eastern Saskatchewan. History In the late 1800s, access to the area for farming and settlement was opened up by the Qu'Appelle, Long Lake and Saskatchewan Railroad and Steamboat Company which also operated steamships on the lake. Until 1974, the lake was known as ''Long Lake''. It was renamed ''Last Mountain Lake'' in honour of a Plains Cree legend about the Great Spirit shovelling dirt from the valley the lake now occupies and forming Last Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Dewdney
Edgar Dewdney, (November 5, 1835 – August 8, 1916) was a Canadian surveyor, road builder, Indian commissioner and politician born in Devonshire, England. He emigrated to British Columbia in 1859 in order to act as surveyor for the Dewdney Trail that runs through the province. In 1870, Dewdney decided to take up a role in Canadian government. In this year, he was elected to the Legislative Council of British Columbia as a representative form the Kootenay region. In 1872, he was elected as a member of Federal Government for the Yale region representing the Conservative party. He was reelected to this position in 1874 and again in 1878. Dewdney served as Lieutenant Governor of the North-West Territories from 1879 to 1888, and the fifth Lieutenant-Governor of British Columbia from 1892 to 1897. Additionally, he served as the Indian commissioner in the North-West Territories from 1879 until 1888. In 1897, Dewdney retired from politics and began working as a financial agent until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatidae
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution, occurring on all the world's continents except Antarctica. These birds are adapted for swimming, floating on the water surface, and in some cases diving in at least shallow water. The family contains around 174 species in 43 genera. (The magpie goose is no longer considered to be part of the Anatidae and is now placed in its own family, Anseranatidae.) They are generally herbivorous, and are monogamous breeders. A number of species undertake annual migrations. A few species have been domesticated for agriculture, and many others are hunted for food and recreation. Five species have become extinct since 1600, and many more are threatened with extinction. Description and ecology The ducks, geese, and swans are small- to large-sized birds with a broad and elongated general body plan. Diving species vary from this in being rounder. Extant s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkaline
In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a base (chemistry), basic, ionic compound, ionic salt (chemistry), salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0. The adjective alkaline, and less often, alkalescent, is commonly used in English language, English as a synonym for basic, especially for bases soluble in water. This broad use of the term is likely to have come about because alkalis were the first bases known to obey the acid-base reaction theories#Arrhenius theory, Arrhenius definition of a base, and they are still among the most common bases. Etymology The word "alkali" is derived from Arabic ''al qalīy'' (or ''alkali''), meaning ''the calcined ashes'' (see calcination), referring to the original source of alkaline substances. A water-extract of burned plant ashes, called potash and composed mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pothole (landform)
In Earth science, a pothole is a smooth, bowl-shaped or cylindrical hollow, generally deeper than wide, found carved into the rocky bed of a watercourse. Other names used for riverine potholes are pot, (stream) kettle, giant's kettle, evorsion, hollow, rock mill, churn hole, eddy mill, and kolk.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds., 2011. ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 800 pp. Although somewhat related to a pothole in origin, a plunge pool (or plunge basin or waterfall lake) is the deep depression in a stream bed at the base of a waterfall. It is created by the erosional forces of turbulence generated by water falling on rocks at a waterfall's base where the water impacts.Marshak, Stephen, 2009. ''Essentials of Geology,'' W. W. Norton & Company, 3rd ed. Potholes are also sometimes referred to as swirlholes. This word was created to avoid confusion with an English term for a vertical or steeply incli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peninsula
A peninsula (; ) is a landform that extends from a mainland and is surrounded by water on most, but not all of its borders. A peninsula is also sometimes defined as a piece of land bordered by water on three of its sides. Peninsulas exist on all continents. The size of a peninsula can range from tiny to very large. The largest peninsula in the world is the Arabian Peninsula. Peninsulas form due to a variety of causes. Etymology Peninsula derives , which is translated as 'peninsula'. itself was derived , or together, 'almost an island'. The word entered English in the 16th century. Definitions A peninsula is usually defined as a piece of land surrounded on most, but not all sides, but is sometimes instead defined as a piece of land bordered by water on three of its sides. A peninsula may be bordered by more than one body of water, and the body of water does not have to be an ocean or a sea. A piece of land on a very tight river bend or one between two rivers is sometimes s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducks Unlimited Canada
Ducks Unlimited Canada (DUC) is a Canadian non-profit organization that works to conserve, restore and manage Canadian wetlands in order to preserve habitat for North American waterfowl, wildlife and people. They work with industry leaders, government agencies, landowners and other non-profit organizations to collaboratively protect critical habitats. DUC are a separate organization from Ducks Unlimited Inc. (DU) and Ducks Unlimited de Mexico (DUMAC). However, they collaborate on conservation projects. History DUC was incorporated a year after DU Inc. in 1938 in Winnipeg, Manitoba. Their national headquarters are at Oak Hammock Marsh in Stonewall, Manitoba. Their first conservation project was in Big Grass Marsh outside Gladstone, Manitoba. It was privately funded by waterfowl hunters and conservationists, and was in partnership with the More Game Birds in America Foundation. Big Grass Marsh was drained for agricultural purposes from 1909 to 1916 in order to provide farmers w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfowl
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans. Most modern species in the order are highly adapted for an aquatic existence at the water surface. With the exception of screamers, males have penises, a trait that has been lost in the Neoaves. Due to their aquatic nature, most species are web-footed. Evolution Anseriformes are one of only two types of modern bird to be confirmed present during the Mesozoic alongside the other dinosaurs, and in fact were among the very few birds to survive their extinction, along with their cousins the galliformes. These two groups only occupied two ecological niches during the Mesozoic, living in water and on the ground, while the toothed enantiornithes were the dominant bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsh
A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at the edges of lakes and streams, where they form a transition between the aquatic and terrestrial ecosystems. They are often dominated by grasses, rushes or reeds. If woody plants are present they tend to be low-growing shrubs, and the marsh is sometimes called a carr. This form of vegetation is what differentiates marshes from other types of wetland such as swamps, which are dominated by trees, and mires, which are wetlands that have accumulated deposits of acidic peat. Marshes provide habitats for many kinds of invertebrates, fish, amphibians, waterfowl and aquatic mammals. This biological productivity means that marshes contain 0.1% of global sequestered terrestrial carbon. Moreover, they have an outsized influence on climate resi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shorebird
245px, A flock of Dunlins and Red knots">Red_knot.html" ;"title="Dunlins and Red knot">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 crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans. The term "wader" is used in Europe, while "shorebird" is used in North America, where "wader" may be used instead to refer to long-legged wading birds such as storks and herons. There are about 210 species of wader, most of which live in wetland or coastal environments. Many species of Arctic and temperate regions are strongly migratory, but tropical birds are often resident, or move only in response to rainfall patterns. Some of the Arctic species, such as the little stint, are amongst the longest distance migrants, spending the non-breeding season in the southern hemisphere. Many of the sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mud 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 flat ecosystems are as extensive globally as mangroves, covering at least of the Earth's surface. / They are found in sheltered areas such as bays, bayous, lagoons, and estuaries; they are also seen in freshwater lakes and salty lakes (or inland seas) alike, wherein many rivers and creeks end. Mudflats may be viewed geologically as exposed layers of bay mud, resulting from deposition of estuarine silts, clays and aquatic animal detritus. Most of the sediment within a mudflat is within the intertidal zone, and thus the flat is submerged and exposed approximately twice daily. A recent global remote sensing analysis estimated that approximately 50% of the global extent of tidal flats occurs within eight countries (Indonesia, China, Austral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Mixed Grasslands
The Northern Mixed Grasslands is one of 867 terrestrial ecoregions defined by the World Wide Fund for Nature. This ecoregion includes parts of the Canadian provinces of Alberta, Saskatchewan, and Manitoba, north-central and eastern (except extreme eastern) North Dakota, most of east South Dakota, and north-central Nebraska in the American Great Plains. The United States Environmental Protection Agency (EPA) defines this ecoregion as the Northern Glaciated Plains. Setting This is a transition zone between the ecoregions of the Northern tall grasslands to the east and the Northern short grasslands to the west, while to the north lie the cooler Canadian boreal forests and a much shorter growing season. Environment ;Flora The Mixed Grass prairie was recognized as a mixture of the tallgrass and shortgrass prairies. The dominant grasses found here include grama ('' Bouteloua gracilis''), little bluestem (''Schizachyrium scoparium''), needle-and-thread grass ('' Stipa comata''), w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
