|
Columbian Ground Squirrel
The Columbian ground squirrel (''Urocitellus columbianus'') is a species of rodent common in certain regions of Canada and the northwestern United States. It is the second largest member of the genus '' Urocitellus'', which is part of the tribe Marmotini, along with marmots, chipmunks, prairie dogs, and other holarctic ground squirrels. They are stout, with short dense fur, which is characteristically tawny across the bridge of the nose. Social encounters sometimes are initiated with kissing behavior and the most common activity above ground is standing at attention. Residing in mountainous terrain and high plains in northern latitudes, they hibernate for 8 to 9 months of the year in burrows, which may be used for many years. They are emaciated when emerging in the spring. The Columbian ground squirrel came to the attention of the scientific community through writings produced by Lewis and Clark, while 21st century molecular genetics has more finely illuminated its ties with other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alberta
Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Territories (NWT) to the north, and the U.S. state of Montana to the south. It is one of the only two landlocked provinces in Canada (Saskatchewan being the other). The eastern part of the province is occupied by the Great Plains, while the western part borders the Rocky Mountains. The province has a predominantly continental climate but experiences quick temperature changes due to air aridity. Seasonal temperature swings are less pronounced in western Alberta due to occasional Chinook winds. Alberta is the fourth largest province by area at , and the fourth most populous, being home to 4,262,635 people. Alberta's capital is Edmonton, while Calgary is its largest city. The two are Alberta's largest census metropolitan areas. More tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing a faunal interchange between the two reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squirrel Posing At Logan Pass
Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia. The earliest known fossilized squirrels date from the Eocene epoch, and among other living rodent families, the squirrels are most closely related to the mountain beaver and to the dormice. Etymology The word ''squirrel'', first attested in 1327, comes from the Anglo-Norman which is from the Old French , the reflex of a Latin word , which was taken from the Ancient Greek word (; from ) 'shadow-tailed', referring to the long bushy tail which many of its members have. The native Old English word for the squirrel, , survived only into Middle English (as ) before being replaced. The Old English word is of Common Germanic origin, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urocitellus Columbianus
The Columbian ground squirrel (''Urocitellus columbianus'') is a species of rodent common in certain regions of Canada and the northwestern United States. It is the second largest member of the genus '' Urocitellus'', which is part of the tribe Marmotini, along with marmots, chipmunks, prairie dogs, and other holarctic ground squirrels. They are stout, with short dense fur, which is characteristically tawny across the bridge of the nose. Social encounters sometimes are initiated with kissing behavior and the most common activity above ground is standing at attention. Residing in mountainous terrain and high plains in northern latitudes, they hibernate for 8 to 9 months of the year in burrows, which may be used for many years. They are emaciated when emerging in the spring. The Columbian ground squirrel came to the attention of the scientific community through writings produced by Lewis and Clark, while 21st century molecular genetics has more finely illuminated its ties with other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luzula Parviflora
''Luzula parviflora'' is a species of flowering plant in the rush family known by the common name small-flowered woodrush. It has a northern circumboreal distribution. Description It is a perennial herb forming grasslike clumps of several erect stems up to half a meter in maximum height surrounded by many grasslike leaves. The inflorescence is an open array of many clusters of brown flowers on long branches. Distribution It has a circumboreal distribution, native throughout the Northern Hemisphere in northern Scandinavia, Asia and North America. It grows in moist areas, often on gravelly soils. It occurs at low elevations in colder regions, such as tundra; farther south it is restricted mainly to high mountains. It can grow in highly disturbed habitat, as evidenced by its ability to survive volcanic eruption and to thrive in the destroyed ecosystem on the most barren slopes of Mount St. Helens Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz peopl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier National Park (U
Glacier National Park may refer to: *Glacier National Park (Canada), in British Columbia, Canada *Glacier National Park (U.S.) Glacier National Park is an American national park located in northwestern Montana, on the Canada–United States border, adjacent to the Canadian provinces of Alberta and British Columbia. The park encompasses more than and includes parts o ..., in Montana, USA See also * Glacier Bay National Park, in Alaska, USA * Los Glaciares National Park, in Patagonia, Argentina {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piegan Pass
Piegan Mountain () is located in the Lewis Range, Glacier National Park in the U.S. state of Montana. Piegan Glacier is located in a cirque immediately southeast of the summit. Geology Like other mountains in Glacier National Park, Piegan Mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks thick, wide and long over younger rock of the cretaceous period. Climate Based on the Köppen climate classification, it is located in an alpine subarctic climate zone with long, cold, snowy winters, and cool to warm summers. Temperatures can drop below −10 °F with wind chill factors below −30 °F. See also * Mountains and mountain ranges of Glacier National Park (U.S.) * Geology of the Rocky Mountains The geology of the Rocky Mountains is that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernon Orlando Bailey
Vernon Orlando Bailey (1864–1942) was an American naturalist who specialized in mammalogy. He was employed by the Bureau of Biological Survey, United States Department of Agriculture (USDA). His contributions to the Bureau of Biological Survey numbered roughly 13,000 specimens including many new species. Bailey published 244 monographs and articles during his career with the USDA, and is best known for his biological surveys of Texas, New Mexico, North Dakota, and Oregon. Life and work The fourth child of Emily and Hiram Bailey, Vernon Orlando Bailey was born on June 21, 1864 in Manchester, Michigan. Bailey and his pioneer family moved by horse-drawn wagon to Elk River, Minnesota in 1870. Hiram Bailey was a woodsman and a mason by trade that taught his son how to hunt at an early age. Since there was no school in the frontier town at the time, the Baileys schooled their children at home until they and several other local families established a school in 1873. Vernon briefly a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postpartum Period
The postpartum (or postnatal) period begins after childbirth and is typically considered to end within 6 weeks as the mother's body, including hormone levels and uterus size, returns to a non-pregnant state. The terms puerperium, puerperal period, or immediate postpartum period are commonly used to refer to the first six weeks following childbirth. The World Health Organization (WHO) describes the postnatal period as the most critical and yet the most neglected phase in the lives of mothers and babies; most maternal and infant mortality, newborn deaths occur during this period. In scientific literature, the term is commonly abbreviated to P''x'', where ''x'' is a number; for example, "day P5" should be read as "the fifth day after birth". This is not to be confused with the medical nomenclature that uses G P to stand for number and outcomes of pregnancy (gravidity and parity). A female giving birth in a hospital may leave as soon as they are medically stable, which can be as ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hibernaculum (zoology)
A hibernaculum ''plural form: hibernacula'' (Latin, "tent for winter quarters") is a place in which a creature seeks Refuge (ecology), refuge, such as a bear using a cave to overwinter. The word can be used to describe a variety of shelters used by many kinds of animals, including insects, toads, lizards, snakes, bats, rodents, and primates of various species. Insects Insects range in their size, structure, and general appearance but most use hibernacula. All insects are primarily exothermic. For this reason, extremely cold temperatures, such as those experienced in the winter, outside of tropical locations, cause their metabolic systems to shut down; long exposure may lead to death. Insects survive colder winters through the process of overwintering, which occurs at all stages of development and may include Insect migration, migration or hibernation for different insects, the latter of which must be done in hibernacula. Insects that do not migrate must halt their growth to avo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urocitellus Columbianus Burrow Diagram
''Urocitellus'' is a genus of ground squirrels. They were previously believed to belong to the much larger genus ''Spermophilus'', but DNA sequencing of the cytochrome ''b'' gene showed that this group was paraphyletic to the prairie dogs and marmots, and could therefore no longer be retained as a single genus. As a result, ''Urocitellus'' is now considered as a genus in its own right. All but two species are native to the northern and western parts of North America, from California and Minnesota through the north-western United States and western Canada; the Arctic ground squirrel inhabits Arctic terrain on both sides of the Bering Strait, while the long-tailed ground squirrel is exclusively found in Asia. The name of the genus is said to be derived from the Latin ''uro'', meaning "tail" and ''citellus'' for "ground squirrel". The proper word for "tail" in classical Latin is ''cauda''.Lewis, C.T. & Short, C. (1879). ''A Latin dictionary founded on Andrews' edition of Freund ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Basin And Range Ecoregion
The Northern Basin and Range ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Idaho, Nevada, Utah, and California. It contains dissected lava plains, rolling hills, alluvial fans, valleys, and scattered mountain ranges in the northern part of the Great Basin. Although arid, the ecoregion is higher and cooler than the Snake River Plain to the north and has more available moisture and a cooler climate than the Central Basin and Range to the south. Its southern boundary is determined by the highest shoreline of Pleistocene Lake Bonneville, which once inundated the Central Basin and Range. The western part of the region is internally drained; its eastern stream network drains to the Snake River system. The valleys support sagebrush steppe or saltbush vegetation. Mollisol soils are common, in contrast to the aridisols of the Central Basin. Juniper-dominated woodland occurs on rugged, stony upl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
