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Arabidopsis Lyrata
''Arabidopsis lyrata'', the lyrate rockcress, is a species of flowering plant in the family Brassicaceae, closely related to the model organism ''Arabidopsis thaliana''. Description ''Arabidopsis lyrata'' are diploid plants that have a life span of two or more years, small white flowers and highly distinct basal leaves with a height of . The stem leaves are arranged alternately, with linear and slightly curved margins that are smooth and having a base that is tapered. The leaves of ''Arabidopsis lyrata'' have glucosinolates and trichomes as defense mechanisms against insect herbivores, and any other potential threats, such as fires and human activity. "The flowers on this species are quite tiny, ranging from 3–8 mm in size, they are pure white with four lobes, and are borne on wide rising pedicels, that range from 7 to 12 mm in length." These plants are insect pollination, insect pollinated and tend to bloom between the months of May right through June and produces fruits in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was the son of a curate and was born in Råshult, in the countryside of Småland, 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 co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumpolar Distribution
A circumpolar distribution is any range (biology), range of a taxon that occurs over a wide range of longitudes but only at high latitudes; such a range therefore extends all the way around either the North Pole or the South Pole. Taxa that are also found in isolated high-mountain environments further from the poles are said to have arctic–alpine distributions. Animals with circumpolar distributions include the reindeer, polar bear, Arctic fox, snowy owl, snow bunting, king eider, brent goose and long-tailed skua in the north, and the Weddell seal and Adélie penguin in the south. Plants with northern circumpolar distributions include ''Eutrema edwardsii'' (syn. ''Draba laevigata''), ''Saxifraga oppositifolia'', ''Persicaria vivipara'' and ''Honckenya peploides''. References {{Reflist, 32em Biogeography Polar regions of the Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viburnum Rafinesquianum
''Viburnum rafinesqueanum'', the downy arrowwood, is a deciduous medium-sized (typically about 2 meters tall) shrub native to the Eastern United States and Canada from Quebec and Manitoba south to Georgia and west to Oklahoma. Downy arrow-wood produces ornamental but slightly malodorous flowers in Spring. ''Viburnum rafinesqueanum'' has opposite, simple leaves and dark blue fruit in berry-like drupe In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed ...s. Foliage turns orange-red in late fall. Southern arrow-wood ('' V. dentatum'') is similar, except that it blooms later and has broader, more coarsely toothed leaves and longer petioles. Other similar species are smooth arrowwood ('' V. recognitum'') and Carolina arrowwood ('' V. carolinianum''). References {{Taxonbar, from1=Q12357 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senecio Obovatus
''Packera obovata'', commonly known as roundleaf ragwort, spoon-leaved ragwort, or roundleaf groundsel is an erect perennial herb in the Asteraceae (aster) family native to eastern North America. It was previously called ''Senecio obovatus''. Basal and lower leaves are obovate with toothed margins, while upper leaves are pinnately divided. The ray flowers are yellow and the disk flowers orange-yellow, the inflorescences being held well above the foliage. Description ''Packera obovata'' is an erect perennial herb growing to a height of up to . It has fibrous roots and a basal rosette of leaves up to across. The basal leaves are mid-green and hairless, circular, oval or obovate in shape and have crinkly toothed margins. The leaf stalks are about the same length as the leaf blades, green or purplish in colour and usually hairless; some have slight winging and may be cobwebby-pubescent. The flower stalk may also be cobwebby at the base, and bears two or three alternate pinnatifid le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Michigan Press
The University of Michigan Press is a university press that is a part of Michigan Publishing at the University of Michigan Library. It publishes 170 new titles each year in the humanities and social sciences. Titles from the press have earned numerous awards, including Lambda Literary Awards, the PEN/Faulkner Award, the Joe A. Callaway Award, and the Nautilus Book Award. The press has published works by authors who have been awarded the Pulitzer Prize, the National Humanities Medal and the Nobel Prize in Economics. History From 1858 to 1930, the University of Michigan had no organized entity for its scholarly publications, which were generally conference proceedings or department-specific research. The University Press was established in 1930 under the university's Graduate School, and in 1935, Frank E. Robbins, assistant to university president Alexander G. Ruthven, was appointed as the managing editor of the University Press. He would hold this position until 195 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Natives
Alaska Natives (also known as Native Alaskans, Alaskan Indians, or Indigenous Alaskans) are the Indigenous peoples of Alaska that encompass a diverse arena of cultural and linguistic groups, including the Iñupiat, Yupik, Aleut, Eyak, Tlingit, Haida, Tsimshian, and various Northern Athabaskan, as well as Russian Creoles. These groups are often categorized by their distinct language families. Many Alaska Natives are enrolled in federally recognized Alaska Native tribal entities, which are members of 13 Alaska Native Regional Corporations responsible for managing land and financial claims. The migration of Alaska Natives' ancestors into the Alaskan region occurred thousands of years ago, likely in more than one wave. Some present-day groups descend from a later migration event that also led to settlement across northern North America, with these populations generally not migrating further south. Genetic evidence indicates that these groups are not closely related to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Arabidopsis Book
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproductive Cycle
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the process repeating in a cyclic fashion. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, or sexual reproduction. In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.Dixon, P.S. 1973 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shetland
Shetland (until 1975 spelled Zetland), also called the Shetland Islands, is an archipelago in Scotland lying between Orkney, the Faroe Islands, and Norway, marking the northernmost region of the United Kingdom. The islands lie about to the northeast of Orkney, from mainland Scotland and west of Norway. They form part of the border between the Atlantic Ocean to the west and the North Sea to the east. The island's area is and the population totalled in . The islands comprise the Shetland (Scottish Parliament constituency), Shetland constituency of the Scottish Parliament. The islands' administrative centre, largest settlement and only burgh is Lerwick, which has been the capital of Shetland since 1708, before which time the capital was Scalloway. Due to its location it is accessible only by ferry or flight with an airport located in Sumburgh as well as a port and emergency airstrip in Lerwick. The archipelago has an oceanic climate, complex geology, rugged coastline, and m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Agriculture
The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secretary of agriculture, who reports directly to the president of the United States and is a member of the president's Cabinet. The current secretary is Brooke Rollins, who has served since February 13, 2025. Approximately 71% of the USDA's $213 billion budget goes towards nutrition assistance programs administered by the Food and Nutrition Service (FNS). The largest component of the FNS budget is the Supplemental Nutrition Assistance Program (formerly known as the 'Food Stamp' program), which is the cornerstone of USDA's nutrition assistance. The United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conservation Status
The conservation status of a group of organisms (for instance, a species) indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). International systems IUCN Red List of Threatened Species The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
