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Limnanthes Vinculans
''Limnanthes vinculans'', the Sebastopol meadowfoam, is an endangered species of meadowfoam found only in the Laguna de Santa Rosa in Sonoma County, California, United States and an area slightly to the south in the Americano Creek and Washoe Creek watersheds. The name ''vinculans'' derives from the Latin root vinculum, meaning "a bond, a cord." The specific epithet ''vinculans'' means linking or bonding, in reference to the sharing of some characters of ''L. vinculans'' with ''L. douglasii'' (R.Br) and ''L. bakeri'' (J.T. Howell). Description Like the other meadowfoams, ''Limnanthes vinculans'' is a small annual herb, with multiple stems growing up to in height; white flowers occur singly at the ends of stems. This plant bears white flowers singly at the termini of its stems. ''L. vinculans'' is unique in its genus for having compound leaves with three to five leaflets; each leaflet is entire, with a narrow-obovate shape. The flowers are small (12 to 18 millimeters across), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebastopol, California
Sebastopol ( ) is a city in Sonoma County, in California with a recorded population of 7,521, per the 2020 U.S. Census. Sebastopol was once primarily a plum and apple-growing region. Today, wine grapes are the predominant agriculture crop, and nearly all lands once used for orchards are now vineyards. The creation of The Barlow, a $23.5 million strip mall on a floodplain at the edge of town, converting old agriculture warehouses into a trendy marketplace for fine dining, tasting rooms, and art, has made Sebastopol a popular Wine Country destination. Famous horticulturist Luther Burbank had gardens in this region. The city hosts an annual Apple Blossom Festival in April and is home to the Sebastopol Documentary Film Festival. History The area's first known inhabitants were the native Coast Miwok and Pomo peoples. The town currently sits atop multiple village sites. The town of Sebastopol formed in the 1850s with a U.S. Post Office and as a small trade center for the farmers o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limnanthaceae
The Limnanthaceae are a small family of annual herbs occurring throughout temperate North America. There are eight species and nineteen taxa currently recognized. Members of this family are prominent in vernal pool communities of California. Some taxa have been domesticated for use as an oil seed crop. Some members are listed as threatened or endangered and have been the focus of disputes over development plans (e.g. ''Limnanthes floccosa'' subsp. ''californica'', ''Limnanthes vinculans'' ) The Limnanthaceae are members of a recently identified clade (Brassicales) of mustard oil producing plants. They have a sharp flavor similar to mustard greens, radish or capers. (2003): An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. ''Botanical Journal of the Linnean Society'' 141(4): 399-436.PDF fulltext/ref> Two genera are recognized in the family. The monotypic genus ''Floerkea'' inhabits shaded, vernally wet habitats in e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ex-situ Conservation
Svalbard GLOBAL SEED BANK, an ''ex situ'' conservation. ''Ex situ'' conservation literally means, "off-site conservation". It is the process of protecting an endangered species, variety or breed, of plant or animal outside its natural habitat; for example, by removing part of the population from a threatened habitat and placing it in a new location, an artificial environment which is similar to the natural habitat of the respective animal and within the care of humans, example are zoological parks and wildlife safaris. The degree to which humans control or modify the natural dynamics of the managed population varies widely, and this may include alteration of living environments, reproductive patterns, access to resources, and protection from predation and mortality. ''Ex situ'' management can occur within or outside a species' natural geographic range. Individuals maintained ''ex situ'' exist outside an ecological niche. This means that they are not under the same selection pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In Situ
''In situ'' (; often not italicized in English) is a Latin phrase that translates literally to "on site" or "in position." It can mean "locally", "on site", "on the premises", or "in place" to describe where an event takes place and is used in many different contexts. For example, in fields such as physics, geology, chemistry, or biology, ''in situ'' may describe the way a measurement is taken, that is, in the same place the phenomenon is occurring without isolating it from other systems or altering the original conditions of the test. The opposite of ''in situ'' is ''ex situ''. Aerospace In the aerospace industry, equipment on-board aircraft must be tested ''in situ'', or in place, to confirm everything functions properly as a system. Individually, each piece may work but interference from nearby equipment may create unanticipated problems. Special test equipment is available for this ''in situ'' testing. It can also refer to repairs made to the aircraft structure or flight con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vegetation
Vegetation is an assemblage of plant species and the ground cover they provide. It is a general term, without specific reference to particular taxa, life forms, structure, spatial extent, or any other specific botanical or geographic characteristics. It is broader than the term ''flora'' which refers to species composition. Perhaps the closest synonym is plant community, but ''vegetation'' can, and often does, refer to a wider range of spatial scales than that term does, including scales as large as the global. Primeval redwood forests, coastal mangrove stands, sphagnum bogs, desert soil crusts, roadside weed patches, wheat fields, cultivated gardens and lawns; all are encompassed by the term ''vegetation''. The vegetation type is defined by characteristic dominant species, or a common aspect of the assemblage, such as an elevation range or environmental commonality. The contemporary use of ''vegetation'' approximates that of ecologist Frederic Clements' term earth cover, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or seawater, saltwater. The main w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * "A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Rosa Plain
Santa Rosa (Spanish for " Saint Rose") is a city and the county seat of Sonoma County, in the North Bay region of the Bay Area in California. Its estimated 2019 population was 178,127. It is the largest city in California's Wine Country and Redwood Coast. It is the fifth most populous city in the Bay Area after San Jose, San Francisco, Oakland, and Fremont; and the 25th most populous city in California. History Early history Before the arrival of Europeans, what became known as the Santa Rosa Plain was occupied by a strong and populous tribe of Pomo natives known as the Bitakomtara. The Bitakomtara controlled the area closely, barring passage to others until permission was arranged. Those who entered without permission were subject to harsh penalties. The tribe gathered at ceremonial times on Santa Rosa Creek near present-day Spring Lake Regional Park. Following the arrival of Europeans, initially Spanish explorers and colonists, the Pomos were decimated by smallpox br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blennosperma Bakeri
''Blennosperma bakeri'' is a rare species of flowering plant in the daisy family known by the common names Baker's stickyseed and Sonoma sunshine. Distribution It is endemic to Sonoma County, California, where it is known from a few remaining vernal pool sites on the wet grasslands of the Laguna de Santa Rosa and Sonoma Valley. It is a federally listed endangered species. It is found alongside other rare vernal pool plants including the Sebastopol meadowfoam, '' Limnanthes vinculans'', and Burke's goldfields, '' Lasthenia burkei''. Threats to its survival include the alteration of its habitat for development, road maintenance, grazing, and agriculture, as well as collecting, herbivory by thrips, and invasive plants. Description This is a small annual ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasthenia Burkei
''Lasthenia burkei'' is a rare species of flowering plant in the family Asteraceae known by the common names Burke's goldfields and Burke's baeria. Distribution The plant is endemic to California, where it is known from three counties north of the San Francisco Bay Area. It grows in moist spring meadows and vernal pools. Critically endangered plant This is a listed endangered species on the federal level in the United States and the state level in California. It is listed as Critically Imperiled—Critically endangered by NatureServe. There are probably fewer than ten occurrences in Lake, Mendocino, and Sonoma Counties.''Lasthenia burkei''. The Nature Conservancy< ...
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Hydric Soil
Hydric soil is soil which is permanently or seasonally saturated by water, resulting in anaerobic conditions, as found in wetlands. Overview Most soils are aerobic. This is important because plant roots respire (that is, they consume oxygen and carbohydrates while releasing carbon dioxide) and there must be sufficient air—especially oxygen—in the soil to support most forms of soil life. Air normally moves through interconnected pores by forces such as changes in atmospheric pressure, the flushing action of rainwater, and by simple diffusion. In addition to plant roots, most forms of soil microorganisms need oxygen to survive. This is true of the more well-known soil animals as well, such as ants, earthworms and moles. But soils can often become saturated with water due to rainfall and flooding. Gas diffusion in soil slows (some 10,000 times slower) when soil becomes saturated with water because there are no open passageways for air to travel. When oxygen levels becom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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