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Christmas Imperial Pigeon
The Christmas imperial pigeon (''Ducula whartoni''), also known as Black imperial pigeon, Dusky imperial pigeon, Wharton's imperial pigeon, or burong pergam , is a large imperial pigeon endemic to Christmas Island in the northeastern Indian Ocean. It has an overall grey-blue colouration, and juveniles are duller than adults. It makes a soft purring coo sound and a deeper ''whoo'' sound comparable to a cow mooing. It lays one glossy white egg per brood, and is possibly somewhat colonial. Other than the Christmas Island flying fox, the Christmas imperial pigeon is the only fruit-eating (frugivorous) animal on the island, and the pigeon feeds and nests in the dense canopy. It mainly inhabits the tropical inland plateau, and widespread non-native Jamaican cherry forests. It was previously thought to be in danger of extinction due to habitat loss and invasive species (specifically the yellow crazy ant), but it is now considered to be rather common, with a breeding population of ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gerrard Keulemans
Johannes Gerardus Keulemans (J. G. Keulemans) (8 June 1842 – 29 March 1912) was a Dutch bird illustrator. For most of his life he lived and worked in England, illustrating many of the best-known ornithology books of the nineteenth century. Biography Keulemans was born in Rotterdam. As a young man he collected animal specimens for museums such as the Natural History Museum in Leiden, whose director, Hermann Schlegel, encouraged Keulemans and sent him on the 1864 expedition to West Africa. In 1869, he was persuaded by Richard Bowdler Sharpe to illustrate his '' Monograph of the Alcedinidae, or Family of Kingfishers'' (1868-1871) and to move to England, where he lived for the rest of his life. He was married twice, and had eight children by his first wife and seven children by his second wife. Only nine of his children reached adulthood. He also wrote topics on spirituality, and claimed he had a premonition at the moment of death of one of his sons. He died in Ilford, Essex (now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Courtship Display
A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. These behaviors often include ritualized movement ("dances"), vocalizations, mechanical sound production, or displays of beauty, strength, or agonistic ability. Male display In some species, males will perform ritualized movements to attract females. The male six-plumed bird-of-paradise ( ''Parotia lawesii'') exemplifies male courtship display with its ritualized "ballerina dance" and unique occipital and breast feathers that serve to stimulate the female visual system. In ''Drosophila subobscura,'' male courtship display is seen through the male's intricate wing scissoring patterns and rapid sidestepping. These stimulations, along with many other factors, result in subsequent copulation or rejection. In other species, males may exhibit courtship displays that serve as both visual and auditory st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nape
The nape is the back of the neck. In technical anatomical/medical terminology, the nape is also called the nucha (from the Medieval Latin rendering of the Arabic , "spinal marrow"). The corresponding adjective is ''nuchal'', as in the term ''nuchal rigidity'' for neck stiffness. In many mammals the nape bears a loose, non-sensitive area of skin, known as the scruff, by which a mother carries her young by her teeth, temporarily immobilizing it during transport. In the mating of cats the male will grip the female's scruff with his teeth to help immobilize her during the act, a form of pinch-induced behavioral inhibition Pinch-induced behavioural inhibition (PIBI), also called dorsal immobility, transport immobility or clipnosis, is a partially inert state which results from a gentle squeeze of the skin behind the neck. It is mostly observed among cats and allows .... Cultural connotations In traditional Japanese culture, the was one of the few areas of the body (other than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burgundy (color)
Burgundy is a dark red-purplish color. The color burgundy takes its name from the Burgundy wine in France. When referring to the color, "burgundy" is not usually capitalized. The color burgundy is similar to Bordeaux (#4C1C24), Merlot (#73343A), Berry (#A01641), and Redberry (#701f28). Burgundy is made of 50% red, 0% green, and 13% blue. The CMYK percentages are 0% cyan, 100% magenta, 75% yellow, 50% black. The first recorded use of "burgundy" as a color name in English was in 1881. __TOC__ Variations Vivid burgundy In cosmetology, a brighter tone of burgundy called vivid burgundy is used for coloring hair. Old burgundy The color ''old burgundy'' is a dark tone of burgundy. The first recorded use of ''old burgundy'' as a color name in English was in 1926. See also * Auburn (color) * RAL 3005 Wine red * Wine (color) * Wine color The color of wine is one of the most easily recognizable characteristics of wines. Color is also an element in wine tasting since heavy w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey Imperial Pigeon
The grey imperial pigeon (''Ducula pickeringii'') is a species of bird in the family Columbidae. It is found in the Sulu Archipelago, Miangas and Talaud Islands. Its natural habitats are tropical moist lowland forests and plantations. It is threatened by habitat loss. Description eBird describes the bird as "Large pigeon with an elegant, silky appearance. Smooth, pearly gray below with dark gray wings, back, and tail (the first two can appear iridescent greenish in good light). Also note faint white eye-ring. Can be confused with Green Imperial-Pigeon, but Gray is much duller- and darker-winged. An inhabitant of forested offshore islands, where it is typically encountered singly or in pairs up in the canopy. Song is a low, booming “coOOOooouh" It has been noted feeding on fruits of figs and Cananga trees. Habitat and Conservation Status Its natural habitats at tropical moist lowland and primary and secondary forest and cultivated areas with trees. Little is known a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Island Imperial Pigeon
The island imperial pigeon or floury imperial pigeon (''Ducula pistrinaria'') is a species of bird in the family Columbidae. It is found in the Bismarck Archipelago and the Solomon Islands archipelago, living in primary and secondary forests and mangroves. The International Union for Conservation of Nature (IUCN) has assessed it as a least-concern species. Taxonomy This species was described by Charles Lucien Bonaparte in 1855. The following subspecies are recognised: ''Ducula pistrinaria rhodinolaema'', ''D. p. vanwyckii'', ''D. p. postrema'' and ''D. p. pistrinaria''. Description The island imperial pigeon is about long and weighs . The head and neck are pale grey, and there are white spectacles. The upperparts are glossy. The wing coverts and tertials are grey-green, and the primaries and secondaries are blackish. The back is grey-green. The uppertail is dark blue-green, and the undertail is chestnut. The throat is vinous, the breast is greyish-vinous, and the belly is greyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nominate (taxonomy)
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] |
Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Imperial Pigeon
The green imperial pigeon (''Ducula aenea'') is a large forest pigeon. The large range extends from Nepal, southern India and Sri Lanka eastwards to southern China, Indonesia and the Philippines. Taxonomy In 1760 the French zoologist Mathurin Jacques Brisson included a description of the green imperial pigeon in his six volume ''Ornithologie''. He used the French name ''Le pigeon ramier des Moluques'' and the Latin ''Palumbus moluccensis''. The two stars (**) at the start of the section indicates that Brisson based his description on the examination of a specimen. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his ''Systema Naturae'' for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the green imperial pigeon which he placed with all the other pigeo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Affinity (taxonomy)
Affinity (taxonomy) – mainly in life sciences or natural history – refers to resemblance suggesting a common descent, phylogenetic relationship, or type. The term does, however, have broader application, such as in geology (for example, in descriptive and theoretical works), and similarly in astronomy (for example, see "Centaur object" in the context of 2060 Chiron's close affinity with icy comet nuclei."Centaur object." Encyclopædia Britannica. Encyclopædia Britannica 2007 Ultimate Reference Suite . Chicago: Encyclopædia Britannica, 2011.) Basis In taxonomy the basis of any particular type of classification is the ''way in which objects in the domain resemble each other''. A resemblance of a type that seems appropriate to the classification that we propose, we may call an ''affinity'', and when we decide how to classify say, a specimen of rock or butterfly, we justify our decision according to the affinities that we observe. Other resemblances we dismiss as being out o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceania
Oceania (, , ) is a region, geographical region that includes Australasia, Melanesia, Micronesia, and Polynesia. Spanning the Eastern Hemisphere, Eastern and Western Hemisphere, Western hemispheres, Oceania is estimated to have a land area of and a population of around 44.5 million as of 2021. When compared with (and sometimes described as being one of) the continents, the region of Oceania is the smallest in land area and the list of continents and continental subregions by population, second least populated after Antarctica. Its major population centres are Sydney, Melbourne, Brisbane, Perth, Auckland, Adelaide, Honolulu, and Christchurch. Oceania has a diverse mix of economies from the developed country, highly developed and globally competitive market economy, financial markets of Australia, French Polynesia, Hawaii, Hawaii, New Caledonia, and New Zealand, which rank high in quality of life and Human Development Index, to the much least developed countries, less developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
