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Hartlaub's Spurfowl
Hartlaub's spurfowl or Hartlaub's francolin (''Pternistis hartlaubi'') is a species of bird in the pheasant family Phasianidae. It is endemic to the escarpment zone of Namibia and Angola. The common name and Latin binomial commemorate the German physician and ornithologist Gustav Hartlaub. Taxonomy Hartlaub's spurfowl was described in 1869 by the Portuguese naturalist José Vicente Barbosa du Bocage from a specimen collected in Huíla Province, Angola. He coined the binomial name ''Francolinus hartlaubi''. The species is now placed in the genus '' Pternistis'' that was introduced by the German naturalist Johann Georg Wagler in 1832. The specific epithet ''hartlaubi'' was chosen to honour the German physician and ornithologist Gustav Hartlaub. A molecular phylogenetic study published in 2019 found that Hartlaub's spurfowl was basal to the other species in the genus. Hartlaub's spurfowl is considered as monotypic: the subspecies ''ovambensis'', ''bradfieldi'' and ''crypticus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
José Vicente Barbosa Du Bocage
José Vicente Barbosa du Bocage (2 May 1823 – 3 November 1907) was a Portuguese zoologist and politician. He was the curator of Zoology at the Museu Nacional de Lisboa in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs for Portugal. The zoology collection at the Lisbon Museum is called the Bocage Museum in his honor. Du Bocage was born in Funchal, Madeira. He studied at the University of Coimbra from 1839 to 1846. He became lecturer of the chair of Zoology at the Polytechnic School, Lisbon (later the Science Faculty of the University of Lisbon) in 1851, where he taught for more than 30 years. In 1858, he became also the scientific director and curator of Zoology of the Natural History Museum of the Polytechnic School. which was established as a support for the chair. His work at the Museum consisted in acquiring, describing and coordinating collections, many of whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basal (phylogenetics)
In phylogenetics, basal is the direction of the ''base'' (or root) of a phylogenetic tree#Rooted tree, rooted phylogenetic tree or cladogram. The term may be more strictly applied only to nodes adjacent to the root, or more loosely applied to nodes regarded as being close to the root. Note that extant taxa that lie on branches connecting directly to the root are not more closely related to the root than any other extant taxa. While there must always be two or more equally "basal" clades sprouting from the root of every cladogram, those clades may differ widely in taxonomic rank, Phylogenetic diversity, species diversity, or both. If ''C'' is a basal clade within ''D'' that has the lowest rank of all basal clades within ''D'', ''C'' may be described as ''the'' basal taxon of that rank within ''D''. The concept of a 'key innovation' implies some degree of correlation between evolutionary innovation and cladogenesis, diversification. However, such a correlation does not make a given ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culinary
Culinary arts are the cuisine arts of outline of food preparation, food preparation, cooking and food presentation, presentation of food, usually in the form of meals. People working in this field – especially in establishments such as restaurants – are commonly called chefs or Cook (profession), cooks, although, at its most general, the terms culinary artist and culinarian are also used. Table manners (the table arts) are sometimes referred to as a culinary art. Expert chefs are in charge of making meals that are both aesthetically beautiful and delicious, which requires understanding of food science, nutrition, and diet. Delicatessens and relatively large institutions like hotels and hospitals rank as their principal workplaces after restaurants. History The origins of culinary arts began with primitive humans roughly 2 million years ago. Various theories exist as to how early humans used fire to cook meat. According to anthropologist Richard Wrangham, author of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamebird
Galliformes is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl. Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are often reared by humans for their meat and eggs, or hunted as game birds. The order contains about 290 species, inhabiting every continent except Antarctica, and divided into five families: Phasianidae (including chicken, quail, partridges, pheasants, turkeys, peafowl (peacocks) and grouse), Odontophoridae (New World quail), Numididae (guinea fowl), Cracidae (including chachalacas and curassows), and Megapodiidae (incubator birds like malleefowl and brush-turkeys). They adapt to most environments except for innermost deserts and perpetual ice. Many gallinaceous species are skilled runners and escape predators by running rather than flying. Males of most species are more colorful than the females, with often elaborate courtship behaviors t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commerce
Commerce is the large-scale organized system of activities, functions, procedures and institutions directly and indirectly related to the exchange (buying and selling) of goods and services among two or more parties within local, regional, national or international economies. More specifically, commerce is not business, but rather the part of business which facilitates the movement and distribution of finished or unfinished but valuable goods and services from the producers to the end consumers on a large scale, as opposed to the sourcing of raw materials and manufacturing of those goods. Commerce is subtly different from trade as well, which is the final transaction, exchange or transfer of finished goods and services between a seller and an end consumer. Commerce not only includes trade as defined above, but also a series of transactions that happen between the producer and the seller with the help of the auxiliary services and means which facilitate such trade. These auxiliary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyperus
''Cyperus'' is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions. Description They are annual or perennial plants, mostly aquatic and growing in still or slow-moving water up to deep. The species vary greatly in size, with small species only tall, while others can reach in height. Common names include ''papyrus sedges'', ''flatsedges'', ''nutsedges'', ''umbrella-sedges'' and ''galingales''. The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender grass-like leaves at the base of the plant, and in a whorl at the apex of the flowering stems. The flowers are greenish and wind-pollinated; they are produced in clusters among the apical leaves. The seed is a small nutlet. Ecology ''Cyperus'' species are eaten by the larvae of some Lepidoptera species, including ''Chedra microstigma''. They also provide an alternative food source for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corm
A corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat (perennation). The word ''cormous'' usually means plants that grow from corms, parallel to the terms ''tuberous'' and ''bulbous'' to describe plants growing from tubers and bulbs. Structure A corm consists of one or more internodes with at least one growing point, generally with protective leaves modified into skins or tunics. The tunic of a corm forms from dead petiole sheaths—remnants of leaves produced in previous years. They act as a covering, protecting the corm from insects, digging animals, flooding, and water loss. The tunics of some species are thin, dry, and papery, at least in young plants, however, in some families, such as ''Iridaceae'', the tunic of a mature corm can be formidable protection. For example, some of the larger species of '' Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange River Francolin
The Orange River francolin (''Scleroptila gutturalis'') is a species of bird in the family Phasianidae found in grassland and woodland in Africa.McGowan, P. J. K. (1994). Orange River Francolin (''Francolinus levaillantoides''). Pp. 494-495 in: del Hoyo, J., Elliott, A., & Sargatal, J. eds. (1994). ''Handbook of the Birds of the World.'' Vol. 2. New World Vultures to Guineafowl. Lynx Edicions, Barcelon. In the taxa from the northern part of its distribution (Ethiopia, South Sudan, Somalia, Uganda and Kenya), the neck-line does not reach the eye and the belly is whitish. In the southern taxa (Angola, Namibia, Botswana, South Africa and Lesotho) the neck-line reaches the eye and the belly is buff Buff or BUFF may refer to: People * Buff (surname), a list of people * Buff (nickname), a list of people * Johnny Buff, ring name of American world champion boxer John Lisky (1888–1955) * Buff Bagwell, a ring name of American professional .... This has led some authorities to tre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-billed Spurfowl
The red-billed spurfowl (''Pternistis adspersus''), also known as the red-billed francolin, is a species of bird in the family Phasianidae. It is found in Southern Africa, including Angola, Botswana, Namibia, South Africa, Zambia, and Zimbabwe. The species exhibits sexual dimorphism in size. Males are larger, measuring in length and weighing , whereas females measure in length and weigh . The species has barred underparts (in contrast to the related Natal spurfowl) and a conspicuous yellow eye-ring.McGowan, P.J.K. & Kirwan, G.M. (2017). Red-billed Francolin (Pternistis adspersus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from http://www.hbw.com/node/53412 on 22 May 2017). Taxonomy The red-billed spurfowl was described in 1838 by the English naturalist George Robert Waterhouse from specimens collected by James Edward Alexander on his expedition to Namaqualan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiarid
A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes. Defining attributes of semi-arid climates A more precise definition is given by the Köppen climate classification, which treats steppe climates (''BSk'' and ''BSh'') as intermediates between desert climates (BW) and humid climates (A, C, D) in ecological characteristics and agricultural potential. Semi-arid climates tend to support short, thorny or scrubby vegetation and are usually dominated by either grasses or shrubs as it usually can't support forests. To determine if a location has a semi-arid climate, the precipitation threshold must first be determined. The method used to find the precipitation threshold (in millimeters): *multiply by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arid
A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most arid climates straddle the Equator; these regions include parts of Africa, Asia, South America, North America, and Australia. Change over time The distribution of aridity at any time is largely the result of the general circulation of the atmosphere. The latter does change significantly over time through climate change. For example, temperature increase by 1.5–2.1 percent across the Nile Basin over the next 30–40 years could change the region from semi-arid to arid, significantly reducing the land usable for agriculture. In addition, changes in land use can increase demands on soil water and thereby increase aridity. See also * Arid Forest Research Institute * Aridity index * Desert climate * Desiccation tolerance * Drought * Hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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