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White-throated Honeyeater
The white-throated honeyeater (''Melithreptus albogularis'') is a bird of the honeyeater family Meliphagidae native to New Guinea and eastern and northern Australia. It is long, olive-green above and white below, with a black head, a white or pale blue patch over the eye, and a white stripe across the nape. Taxonomy John Gould described the white-throated honeyeater in 1848. Its species name comes from the Latin words ''albus'' 'white', and ''gula'' 'throat'." English naturalist Charles Walter De Vis described ''Melithreptus vinitinctus'' from a specimen collected by K. Broadbent in the Kimberley in 1884. This was later synonymized with ''M. albogularis''. Traditionally, two subspecies have been recognised: subspecies ''albogularis'' from northwestern Australia, the Northern Territory and Cape York, and subspecies ''inopinatus'' from central and southeastern Queensland. However, genetic work published in 2010 surprisingly found that the Carpentarian Barrier (south of the Gulf o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist who published monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould (illustrator), Elizabeth Gould, and several other artists, including Edward Lear, Henry Constantine Richter, Joseph Wolf and William Matthew Hart. Because of his 1840s seven-volume series ''The Birds of Australia (Gould), The Birds of Australia'' and its updates he has been considered the father of bird study in Australia, and the Gould League in Australia is named after him. His identification of the birds now nicknamed "Darwin's finches" played a role in the inception of Darwin's theory of evolution by natural selection. Gould's work is referenced in Charles Darwin's book, ''On the Origin of Species''. Early life John Gould was born in Lyme Regis, the first son of a gardener. Both father and son probably had little education. After working on Dowager Lady Poulett's glass house, his father obtained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeyeater
The honeyeaters are a large and diverse family, Meliphagidae, of small to medium-sized birds. The family includes the Australian chats, myzomelas, friarbirds, wattlebirds, miners and melidectes. They are most common in Australia and New Guinea, and found also in New Zealand, the Pacific islands as far east as Samoa and Tonga, and the islands to the north and west of New Guinea known as Wallacea. Bali, on the other side of the Wallace Line, has a single species. In total, there are 186 species in 55 genera, roughly half of them native to Australia, many of the remainder occupying New Guinea. With their closest relatives, the Maluridae (Australian fairy-wrens), Pardalotidae (pardalotes), and Acanthizidae (thornbills, Australian warblers, scrubwrens, etc.), they comprise the superfamily Meliphagoidea and originated early in the evolutionary history of the oscine passerine radiation. Although honeyeaters look and behave very much like other nectar-feeding passerines aroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Northern Territory
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have furth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google Search. In January 2024, YouTube had more than 2.7billion monthly active users, who collectively watched more than one billion hours of videos every day. , videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and , there were approximately 14.8billion videos in total. On November 13, 2006, YouTube was purchased by Google for $1.65 billion (equivalent to $ billion in ). Google expanded YouTube's business model of generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by and for YouTube. It also offers YouTube Premium, a paid subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a land area of , and is also the List of country subdivisions by area, second-largest subdivision of any country on Earth. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley (Western Australia), Kimberley, deserts in the interior (including the Great Sandy Desert, Little Sandy Desert, Gibson Desert, and Great Victoria Desert) and a Mediterranean climate on the south-west and southern coastal areas. the state has 2.965 million inhabitants—10.9 percent of the national total. Over 90 percent of the state's population live in the South-West Land Division, south-west corner and around 80 percent live in the state capital Perth, leaving the remainder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Hobbs Medal
BirdLife Australia is a not-for-profit organisation advocating for native birds and the conservation of their habitats across Australia. BirdLife Australia is the trading name of the company limited by guarantee formed through the merger of two Australian non-government conservation organisations, Bird Observation and Conservation Australia (BOCA) and Birds Australia. A constitution was drafted in May 2011 for BirdLife Australia, which became operational on 1 January 2012. Their respective magazines, the ''Bird Observer'' and ''Wingspan'', were succeeded by '' Australian Birdlife''. History At simultaneous annual general meetings held on 21 May 2011, the respective members of BOCA and Birds Australia voted to merge and form the new company. Over 93% of those that voted from BOCA voted for the merger and over 95% of those that voted from Birds Australia voted for the merger. A combined total of 4517 Birds Australia and BOCA members voted on the resolution, with over 36% of Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houghton Mifflin Harcourt
Houghton Mifflin Harcourt Company ( ; HMH) is an American publisher of textbooks, instructional technology materials, assessments, and reference works. The company is based in the Financial District, Boston, Boston Financial District. It was formerly known as the Houghton Mifflin Company, but it changed its name following the 2007 acquisition of Harcourt (publisher), Harcourt Publishing. Prior to March 2010, it was a subsidiary of EMPG, Education Media and Publishing Group Limited, an Irish-owned holding company registered in the Cayman Islands and formerly known as Riverdeep. In 2022, it was acquired by Veritas Capital, a New York-based private-equity firm. Company history In 1832, William Ticknor and John Allen purchased a bookselling business in Boston and began to involve themselves in publishing; James T. Fields joined as a partner in 1843. Fields and Ticknor gradually gathered an impressive list of writers, including Ralph Waldo Emerson, Nathaniel Hawthorne, and Henry Dav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergmann's Rule
Bergmann's rule is an ecogeographical rule that states that, within a broadly distributed taxonomic clade, populations and species of larger size are found in colder environments, while populations and species of smaller size are found in warmer regions. The rule derives from the relationship between size in linear dimensions meaning that both height and volume will increase in colder environments. Bergmann's rule only describes the overall size of the animals, but does not include body proportions like Allen's rule does. Although originally formulated in relation to species within a genus, it has often been recast in relation to populations within a species. It is also often cast in relation to latitude. It is possible that the rule also applies to some plants, such as '' Rapicactus''. The rule is named after nineteenth century German biologist Carl Bergmann, who described the pattern in 1847, although he was not the first to notice it. Bergmann's rule is most often applied t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloger's Rule
Gloger's rule is an ecogeographical rule which states that within a species of endotherms, more heavily pigmented forms tend to be found in more humid environments, e.g. near the equator. It was named after the zoologist Constantin Wilhelm Lambert Gloger, who first remarked upon this phenomenon in 1833 in a review of covariation of climate and avian plumage color. Erwin Stresemann later noted that the idea had been expressed even earlier by Peter Simon Pallas in ''Zoographia Rosso-Asiatica'' (1811). Gloger found that birds in more humid habitats tended to be darker than their relatives from regions with higher aridity. Over 90% of 52 North American bird species studies conform to this rule. One explanation of Gloger's rule in the case of birds appears to be the increased resistance of dark feathers to feather- or hair-degrading bacteria such as ''Bacillus licheniformis''. Feathers in humid environments have a greater bacterial load, and humid environments are more suitable for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert's Honeyeater
Gilbert's honeyeater (''Melithreptus chloropsis''), also known as the Swan River honeyeater or western white-naped honeyeater, is a passerine bird of the honeyeater family Meliphagidae native to southwestern Australia. A mid-sized honeyeater, it is olive-green above and white below, with a black head, nape and throat and a white patch over the eye and a white crescent-shaped patch on the nape. The bill is brownish-black and the eyes a dull red. The sexes have similar plumage. Taxonomy Gilbert's honeyeater was originally described by John Gould in 1848, who gave it the species epithet ''chloropsis'' from the Ancient Greek terms ''chloros'' 'green-yellow' and ''opsis'' 'eye'. Gregory Mathews coined the name ''Melithreptus whitlocki'' in 1909 from a specimen collected by a Mr F. L. Whitlock from Wilson Inlet. Mathews stated that it was distinct due to having a white eye-ring year-round. This is no longer recognised as a distinguishing feature. Treated as a subspecies of the white ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-headed Honeyeater
The black-headed honeyeater (''Melithreptus affinis'') is a species of bird in the family Meliphagidae. It is one of two members of the genus ''Melithreptus'' Endemism, endemic to Tasmania. Its natural habitats are temperate forest and Mediterranean forests, woodlands, and scrub, Mediterranean-type shrubland, shrubby vegetation. Despite its name, the black-headed honeyeater eats predominantly insects. Taxonomy The black-headed honeyeater was described in 1839 as ''Eidopsarus affinis''. John Gould described it as ''Melithreptus melanocephalus'' in 1844, likely unaware of its earlier name. Molecular studies show that the black-headed honeyeater is most closely related to the white-naped honeyeater, and that their next closest relative is Gilbert's honeyeater. All are members of the genus ''Melithreptus'', with several species of similar size and (apart from the brown-headed honeyeater) black-headed appearance, in the honeyeater family, Meliphagidae. The next closest relative outs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
