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Columbian Sharp-tailed Grouse
The Columbian sharp-tailed grouse (''Tympanuchus phasianellus columbianus'') is a subspecies of sharp-tailed grouse native to the Western United States and British Columbia. Description Out of the seven subspecies of sharp-tailed grouse, the Columbian is the smallest at 15–20 inches (38–51 cm) in length. They have plumage with a base of grayish-brown, white and black markings, and a white wedge-shaped tail. Males have a longer tail, a purple throat patch and a yellow comb over the eye. Distribution and habitat Its historical range extended from British Columbia south through eastern Washington and Oregon to Northeastern California, Nevada, and Utah, and then west to the Continental Divide. It inhabits sagebrush-bunchgrass prairies, meadow-steppe, mountain shrub, and riparian zones. It was first described by the Lewis and Clark expedition, and was named by George Ord. Status and conservation Due to excessive habitat loss, it is no longer present in the maj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steppe
In physical geography, a steppe () is an ecoregion characterized by grassland plains without trees apart from those near rivers and lakes. Steppe biomes may include: * the montane grasslands and shrublands biome * the temperate grasslands, savannas and shrublands biome A steppe may be semi-arid or covered with grass or with shrubs or with both, depending on the season and latitude. The term " steppe climate" denotes the climate encountered in regions too dry to support a forest but not dry enough to be a desert. Steppe soils are typically of the chernozem type. Steppes are usually characterized by a semi-arid or continental climate. Extremes can be recorded in the summer of up to and in winter, . Besides this major seasonal difference, fluctuations between day and night are also very great. In both the highlands of Mongolia and northern Nevada, can be reached during the day with sub-freezing readings at night. Mid-latitude steppes feature hot summers and cold wint ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanuchus
''Tympanuchus'' is a small genus of birds in the grouse family. They are commonly referred to as prairie chickens. Taxonomy The genus ''Tympanuchus'' was introduced in 1841 by the German zoologist Constantin Wilhelm Lambert Gloger for the greater prairie chicken. The name combines the Ancient Greek ''tumpanon'' meaning "kettle-drum" with ''ēkheō'' meaning "to sound". The genus contains three species: All three are among the smaller grouse, from 40 to 43 cm (16 to 17 in) in length. They are found in North America in different types of prairie. In courtship display on leks, males make hooting sounds and dance with the head extended straight forward, the tail up, and colorful neck sacks inflated (shown in the photograph at upper right). ''Tympanuchus'' comes from Ancient Greek roots and means "holding a drum"; it refers to the membranous neck sacks and the drum-like call of the greater prairie chicken. The two prairie chickens are particularly closely related and look ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregon Field Guide
''Oregon Field Guide'' is a weekly television program produced by Oregon Public Broadcasting focusing on recreation, the outdoors, and environmental issues in the state of Oregon. The show has become part of the Oregon zeitgeist. Steve Amen is the show's creator and original Executive Producer. Ed Jahn, producer with Oregon Field Guide since 2000, became host and Executive Producer in 2016/2017 upon Steve Amen's retirement. Named for the field guides used to identify plants, animals, and natural phenomenon, the wide-ranging series covers Oregon natural history, outdoor recreation, conservation, agriculture, rural life, and other local subjects. Produced with deep narratives rather than short segments, roughly 13 half-hour episodes and specials are shown per year. History ''Oregon Field Guide'' started as a partnership between Oregon Public Broadcasting (OPB) and the Oregon Department of Fish and Wildlife. The pilot first aired in 1989. The program became the sole production of OP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species Act
The Endangered Species Act of 1973 (ESA or "The Act"; 16 U.S.C. § 1531 et seq.) is the primary law in the United States for protecting imperiled species. Designed to protect critically imperiled species from extinction as a "consequence of economic growth and development untempered by adequate concern and conservation", the ESA was signed into law by President Richard Nixon on December 28, 1973. The Supreme Court of the United States described it as "the most comprehensive legislation for the preservation of endangered species enacted by any nation"."Tennessee Valley Authority v. Hill" 437 U.S. 153 (1978) Retrieved 24 November 2015. The purposes of the ESA are two-fold: to prevent extinction and to recover species to the point where the law's protections are not needed. It therefo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Threatened
Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depensation'', a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment. IUCN definition The International Union for Conservation of Nature (IUCN) is the foremost authority on threatened species, and treats threatened species not as a single category, but as a group of three categories, depending on the degree to which they are threatened: *Vulnerable species *Endangered species * Critically endangered species Less-than-threatened categories are near threatened, least concern, and the no longer assigned category of conservation dependent. Species which have not been evaluated (NE), or do not have sufficient data (data deficient) also are not considered "t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Oregonian
''The Oregonian'' is a daily newspaper based in Portland, Oregon, United States, owned by Advance Publications. It is the oldest continuously published newspaper on the U.S. west coast, founded as a weekly by Thomas J. Dryer on December 4, 1850, and published daily since 1861. It is the largest newspaper in Oregon and the second largest in the Pacific Northwest by circulation. It is one of the few newspapers with a statewide focus in the United States. The Sunday edition is published under the title ''The Sunday Oregonian''. The regular edition was published under the title ''The Morning Oregonian'' from 1861 until 1937. ''The Oregonian'' received the 2001 Pulitzer Prize for Public Service, the only gold medal annually awarded by the organization. The paper's staff or individual writers have received seven other Pulitzer Prizes, most recently the award for Editorial Writing in 2014. ''The Oregonian'' is home-delivered throughout Multnomah, Washington, Clackamas, and Yamhill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zumwalt Prairie
Zumwalt Prairie is a grassland area located in Wallowa County in northeast Oregon, United States. Measuring , much of the land is used for agriculture, with some portions protected as the Zumwalt Prairie Preserve owned by The Nature Conservancy.Richard, Terry. To conserve and protect (and hike). ''The Oregonian'', April 2, 2006. Part of that portion is designated as a National Natural Landmark. The high altitude prairie is along the west edge of Hells Canyon on the Oregon-Idaho border. Geography The Zumwalt Prairie grassland is situated on a basalt plateau which varies in elevation from and is dominated by several native bunchgrasses, including Idaho Fescue (''Festuca idahoensis''), Bluebunch wheatgrass (''Pseudoroegneria spicata''), Sandberg's Bluegrass (''Poa secunda'') and many species of wildflowers. The Zumwalt Prairie is a piece of a once extensive temperate grassland system west of the Rocky Mountains which extended into Canada. The Zumwalt Prairie grassland system re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallowa County
Wallowa County () is the northeastern most county in the U.S. state of Oregon. As of the 2020 census, the population was 7,391, making it Oregon's fifth-least populous county. Its county seat is Enterprise. According to ''Oregon Geographic Names'', the origins of the county's name are uncertain, with the most likely explanation being it is derived from the Nez Perce term for a structure of stakes (a weir) used in fishing. An alternative explanation is that ''Wallowa'' is derived from a Nez Perce word for "winding water". The journals of Lewis and Clark Expedition record the name of the Wallowa River as ''Wil-le-wah''. Wallowa County is part of the eight-county definition of Eastern Oregon. History In 1871, the first white settlers came to the area, crossing the mountains in search of livestock feed in the Wallowa Valley. The county was established on February 11, 1887, from the eastern portion of Union County. Boundary changes occurred with Union County in 1890, 1900, and 1915 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Reintroduction
Species reintroduction is the deliberate release of a species into the wild, from captivity or other areas where the organism is capable of survival. The goal of species reintroduction is to establish a healthy, genetically diverse, self-sustaining population to an area where it has been extirpated, or to augment an existing population. Species that may be eligible for reintroduction are typically threatened or endangered in the wild. However, reintroduction of a species can also be for pest control; for example, wolves being reintroduced to a wild area to curb an overpopulation of deer. Because reintroduction may involve returning native species to localities where they had been extirpated, some prefer the term "reestablishment". Humans have been reintroducing species for food and pest control for thousands of years. However, the practice of reintroducing for conservation is much younger, starting in the 20th century. Methods for sourcing individuals There are a variety of appro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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