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Western Deer Mouse
The western deermouse or western deer mouse (''Peromyscus sonoriensis'') is a rodent native to North America. It is widespread throughout the western half of the continent, mainly in areas west of the Mississippi River. Taxonomy It was formerly confused with the eastern deermouse (''P. maniculatus''), with both species being grouped under ''P. maniculatus'' as the North American deermouse. However, due to the significant morphological variation in the species, there was always long-standing confusion over the actual taxonomy of ''P. maniculatus''. A 2019 study found significant genetic divergence within the species and split it into two, with ''maniculatus'' representing the "eastern" group and ''sonoriensis'' representing the "western" group. Description ''P. sonoriensis'' is covered in soft fur that ranges from gray to brown, but all of a distinctive white underside and white feet. As with their close relative, ''P. maniculatus'', they have many subspecies, including a dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linn County, Kansas
Linn County (county code LN) is a county located in east-central Kansas and is part of the Kansas City metropolitan area. As of the 2020 census, the county population was 9,591. Its county seat is Mound City, and its most populous city is Pleasanton. The county was named for Lewis F. Linn, a U.S. Senator from Missouri. History Early history For many millennia, the Great Plains of North America was inhabited by nomadic Native Americans. From the 16th century to 18th century, the Kingdom of France claimed ownership of large parts of North America. In 1762, after the French and Indian War, France secretly ceded New France to Spain, per the Treaty of Fontainebleau. 19th century In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles. In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile Louisiana Purchase for 2.83 cents per acre. Explorers in the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Deer Mouse
The southern deermouse or southern deer mouse (''Peromyscus labecula'') is a species of rodent in the family Cricetidae. It is found in the United States and Mexico. Taxonomy The species was originally thought to be conspecific with the North American deermouse (now eastern deermouse), ''P. maniculatus'', as ''P. m. labecula'', ''P. m. blandus'', and ''P. m. fulvus''. However, later studies found these subspecies to together comprise a distinct species from ''P. maniculatus'', and they were split from ''maniculatus'' in a study published in 2019 as ''P. labecula'', which was followed by the American Society of Mammalogists. Distribution This species is distributed from the Southwestern United States (southern New Mexico and western Texas) south to southern Mexico, in the state of Oaxaca. In the southern portion of its range, it is sympatric In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willamette Valley
The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, the Oregon Coast Range to the west, and the Calapooya Mountains to the south. The valley is synonymous with the cultural and political heart of Oregon and is home to approximately 70 percent of its population including the five largest cities in the state: Portland, Eugene, Salem, Gresham, and Hillsboro. The valley's numerous waterways, particularly the Willamette River, are vital to the economy of Oregon, as they continuously deposit highly fertile alluvial soils across its broad, flat plain. A massively productive agricultural area, the valley was widely publicized in the 1820s as a "promised land of flowing milk and honey." Throughout the 19th century, it was the destination of choice for the oxen-drawn wagon trains of emigr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mast (botany)
Mast is the fruit of forest trees and shrubs, such as acorns and other nuts. The term derives from the Old English ''mæst'', meaning the nuts of forest trees that have accumulated on the ground, especially those used historically for fattening domestic pigs, and as food resources for wildlife. In the aseasonal tropics of Southeast Asia, entire forests, including hundreds of species of trees and shrubs, are known to mast at irregular periods of 2–12 years. More generally, mast is considered the edible vegetative or reproductive parts produced by woody species of plants, i.e. trees and shrubs, that wildlife and some domestic animals consume as a food source. Mast is generated in large quantities during long-interval but regularly recurring phenological events known as mast seeding or masting. Such events are population-level phenomena hypothesized to be driven by a wide variety of factors, depending on the plant species involved, including availability of nutrients, economies of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumas County, California
Plumas County () is a county in the Sierra Nevada of the U.S. state of California. As of the 2020 census, the population was 19,790. The county seat is Quincy, and the only incorporated city is Portola. The largest community in the county is East Quincy. The county was named for the Spanish ''Río de las Plumas'' (the Feather River), which flows through it. The county itself is also the namesake of a native moth species, ''Hadena plumasata''. History Before the California Gold Rush of 1849, the indigenous Mountain Maidu were the primary inhabitants of the area now known as Plumas County. The Maidu lived in small settlements along the edges of valleys, subsisting on roots, acorns, grasses, seeds, and occasionally fish and big game. They were decentralized and had no tribal leadership; most bands lived along waterways in and around their own valleys. Areas with high snowfall, including the Mohawk and Sierra valleys, were hunting grounds for game in the warmer months. In 1848 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yukon Deer Mouse
The Yukon deermouse or Yukon deer mouse (''Peromyscus arcticus'') is a species of rodent in the family Cricetidae. It is endemic to Yukon Territory in Canada. Taxonomy The species was first identified as ''Peromyscus arcticus'' in 1845 by Johann Andreas Wagner. In 1998, following extensive sampling of deermouse specimens throughout northern British Columbia, central Yukon, and northern southeast Alaska, Melanie Wike identified a unique lineage that did not associate with the western deer mouse (''P. sonoriensis'') (then thought to be North American deermouse, or ''P. maniculatus'') or northwestern deermouse (''P. keeni''), both of which also reach the northern limits of their range in the Yukon, and identified it with the previously-described ''P. arcticus''. Genetic studies in 2007 and 2019 further affirmed ''P. arcticus'' as a distinct species, and was later classified as such by the American Society of Mammalogists. Distribution The species ranges within Yukon from Sul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yukon
Yukon (; ; formerly called Yukon Territory and also referred to as the Yukon) is the smallest and westernmost of Canada's three territories. It also is the second-least populated province or territory in Canada, with a population of 43,964 as of March 2022. Whitehorse, the territorial capital, is the largest settlement in any of the three territories. Yukon was split from the North-West Territories in 1898 as the Yukon Territory. The federal government's ''Yukon Act'', which received royal assent on March 27, 2002, established Yukon as the territory's official name, though ''Yukon Territory'' is also still popular in usage and Canada Post continues to use the territory's internationally approved postal abbreviation of ''YT''. In 2021, territorial government policy was changed so that “''The'' Yukon” would be recommended for use in official territorial government materials. Though officially bilingual (English and French), the Yukon government also recognizes First Natio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwestern Deer Mouse
The northwestern deer mouse or Keen's mouse (''Peromyscus keeni'') is a species of rodent in the family Cricetidae. It is found in British Columbia in Canada and in Alaska and Washington in the United States. It was named after the Rev. John Henry Keen John Henry Keen (1851–1950) was an Anglican missionary in Canada, known for translating scriptures into Haida. While serving as a missionary, he also contributed to Canada's natural history, writing on insects he discovered; he had a specie ... in 1894. References *Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.''Peromyscus keeni'' Wilson and Reeder's Mammal Species of the World (Don E. Wilson & DeeAnn M. Reeder (editors). 2005. Mammal Species of the World. A Taxonomic and Geographic Reference. 3rd ed.) Hanley, Thomas A., and Jeffrey C. Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Northwest
The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common conception includes the U.S. states of Oregon, Washington (state), Washington, and Idaho, and the Canadian province of British Columbia. Some broader conceptions reach north into Alaska and Yukon, south into northern California, and east into western Montana. Other conceptions may be limited to the coastal areas west of the Cascade Mountains, Cascade and Coast Mountains, Coast mountains. The variety of definitions can be attributed to partially overlapping commonalities of the region's history, culture, geography, society, ecosystems, and other factors. The Northwest Coast is the coastal region of the Pacific Northwest, and the Northwest Plateau (also commonly known as "British Columbia Interi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gambel's Deer Mouse
Gambel's deermouse or Gambel's deer mouse (''Peromyscus gambelii'') is a species of rodent in the family Cricetidae. It is native to the United States and Mexico. Taxonomy It was formerly considered a subspecies of the western deer mouse (''P. sonoriensis'') (then thought to represent western populations of the North American deer mouse, ''Peromyscus maniculatus'', now referred to as the eastern deer mouse) as ''P. m. gambelii''. However, taxonomic studies in 2017 found it to represent a distinct species from ''P. maniculatus'', and thus reclassified it as a distinct species, a change later also followed by the American Society of Mammalogists. In addition, Baja California populations were formerly thought to represent a distinct subspecies ''P. m. coolidgei'', but taxonomic studies found it to be conspecific with ''P. gambelii''. Distribution The species ranges from southern California (south of the San Francisco Bay) in the United States south to Baja California in Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco Bay
San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from approximately 40 percent of California. Water from the Sacramento and San Joaquin rivers, and from the Sierra Nevada mountains, flow into Suisun Bay, which then travels through the Carquinez Strait to meet with the Napa River at the entrance to San Pablo Bay, which connects at its south end to San Francisco Bay. It then connects to the Pacific Ocean via the Golden Gate strait. However, this entire group of interconnected bays is often called the ''San Francisco Bay''. The bay was designated a Ramsar Wetland of International Importance on February 2, 2017. Size The bay covers somewhere between , depending on which sub-bays (such as San Pablo Bay), estuaries, wetlands, and so on are included in the measurement. The main part of the bay meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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