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Blue-winged Parrot
The blue-winged parrot (''Neophema chrysostoma''), also known as the blue-banded parakeet or blue-banded grass-parakeet, is a small parrot found in Tasmania and southeast mainland Australia. It is partly migratory, with populations of blue-winged parrots travelling to Tasmania for the summer. The parrot is sexually dimorphic – the males have more blue on the wings and a two-toned blue frontal band on the head, while females are duller and have more green on the wings and a wingbar. Both sexes have predominantly olive-green plumage. Predominantly a feeder on the ground, the blue-winged parrot mainly eats seeds of grasses. It adapts readily to captivity. Taxonomy German naturalist Heinrich Kuhl described the blue-winged parrot in 1820 as ''Psittacus chrysostomus'', noting that it had been confused with the turquoise parrot (''N. pulchella''). However, the material used to describe it contained specimens of both this species and the elegant parrot. The species' name is from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heinrich Kuhl
Heinrich Kuhl (17 September 1797 – 14 September 1821) was a German people, German naturalist and zoologist. Kuhl was born in Hanau (Hesse, Germany). Between 1817 and 1820, he was the assistant of professor Th. van Swinderen, docent natural history at the University of Groningen in Groningen (the Netherlands). In 1817, he published a monograph on bats, and in 1819, he published a survey of the parrots, ''Conspectus psittacorum''. He also published the first monograph on the petrels, and a list of all the birds illustrated in Edme-Louis Daubenton, Daubenton's ''Planches Enluminées'' and with his friend Johan Coenraad van Hasselt (1797–1823) ''Beiträge zur Zoologie und vergleichenden Anatomie'' ("Contributions to Zoology and Comparative Anatomy") that were published at Frankfurt-am-Main, 1820. In 1820, he became assistant to Coenraad Jacob Temminck at the Leiden Rijksmuseum van Natuurlijke Historie. He then travelled to Java (island), Java, then part of the colonial Netherla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bass Strait
Bass Strait () is a strait separating the island state of Tasmania from the Australian mainland (more specifically the coast of Victoria, with the exception of the land border across Boundary Islet). The strait provides the most direct waterway between the Great Australian Bight and the Tasman Sea, and is also the only maritime route into the economically prominent Port Phillip Bay. Formed 8,000 years ago by rising sea levels at the end of the last glacial period, the strait was named after English explorer and physician George Bass (1771-1803) by European colonists. Extent The International Hydrographic Organization defines the limits of Bass Strait as follows: :''On the west.'' The eastern limit of the Great Australian Bight eing a line from Cape Otway, Australia, to King Island (Tasmania)">King Island and thence to Cape Grim, the northwest extreme of Tasmania]. :''On the east.'' The western limit of the Tasman Sea between Gabo Island and Eddystone Point eing a line fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Victoria (Australia)
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 ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have 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 further evolved for swimming. Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Tasmania
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a four-chambered heart, and a strong yet lightweight Bird skeleton, skeleton. Birds live worldwide and range in size from the bee hummingbird to the Common ostrich, ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have 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 Flightless bird, loss of flight in some birds, including ratites, penguins, and diverse endemism, endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neophema
The genus ''Neophema'' is an Australian genus with six or seven species. They are small, basically dull green parrots differentiated by patches of other colours, and are commonly known as grass parrots. The genus has some sexual dichromatism, with males having brighter hues. Taxonomy Sometimes the broad-tailed parrots are considered a subfamily. In this case, ''Neophema'' and Bourke's parrot are united in the tribe Neophemini. mtDNA sequence data (Miyaki ''et al.'' 1998) suggests that the former may be correct, but the latter almost certainly is not. Rather, it appears, the group would need to include more closely related forms, such as the budgerigar and the ''Pezoporus'' ground-parrots. However, while Joseph ''et al.'' (2011) also found ''Neophema'' to be related both Bourke's parrot and ground-parrots and form part of the tribe Pezoporini, they are not related to the budgerigar. Analysis of mitochondrial DNA published in 2021 indicated the ancestors of Bourke's parrot and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallophaga
The Mallophaga are a possibly paraphyletic section of lice Louse ( : lice) is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result o ..., known as chewing lice, biting lice, or bird lice, containing more than 3000 species. These lice are external parasites that feed mainly on birds, although some species also feed on mammals. They infest both domestic and wild mammals and birds, and cause considerable irritation to their hosts. They have paurometabolis or incomplete metamorphosis. Characteristics About 3000 species of Mallophaga are in the world. They are easily identifiable by their heads, which are wider than their prothoraces. Species that feed on birds usually have two claws at the tip of each tarsus, while those that feed on mammals usually have only one claw. Mallophaga have mandibulate mouthparts wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clutch (eggs)
__NOTOC__ A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest. In birds, destruction of a clutch by predators (or removal by humans, for example the California condor breeding program) results in ''double-clutching''. The technique is used to double the production of a species' eggs, in the California condor case, specifically to increase population size. The act of putting one's hand in a nest to remove eggs is known as "dipping the clutch". Size Clutch size differs greatly between species, sometimes even within the same genus. It may also differ within the same species due to many factors including habitat, health, nutrition, predation pressures, and time of year. Clutch size variation can also reflect variation in optimal reproduction effort. In birds, clutch size can vary within a species due to various features (age and health of laying female, ability of male to supply food, and abundan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Hollow
A tree hollow or tree hole is a semi-enclosed cavity which has naturally formed in the trunk or branch of a tree. They are found mainly in old trees, whether living or not. Hollows form in many species of trees, and are a prominent feature of natural forests and woodlands, and act as a resource or habitat for a number of vertebrate and invertebrate animals. Hollows may form as the result of physiological stress from natural forces causing the excavating and exposure of the heartwood. Forces may include wind, fire, heat, lightning, rain, attack from insects (such as ants or beetles), bacteria, or fungi. Also, trees may self-prune, dropping lower branches as they reach maturity, exposing the area where the branch was attached. Many animals further develop the hollows using instruments such as their beak, teeth or claws. The size of hollows may depend on the age of the tree. For example, eucalypts develop hollows at all ages, but only from when the trees are 120 years old do they f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group Size Measures
Many animals, including humans, tend to live in groups, herds, flocks, bands, packs, shoals, or colonies (hereafter: groups) of conspecific individuals. The size of these groups, as expressed by the number of people/etc in a group such as eight groups of nine people in each one, is an important aspect of their social environment. Group size tend to be highly variable even within the same species, thus we often need statistical measures to quantify group size and statistical tests to compare these measures between two or more samples. Group size measures are notoriously hard to handle statistically since groups sizes typically follow an aggregated (right-skewed) distribution: most groups are small, few are large, and a very few are very large. Statistical measures of group size roughly fall into two categories. Outsiders' view of group size * Group size is the number of individuals within a group; * Mean group size, the arithmetic mean of group sizes averaged over groups; * Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muehlenbeckia Florulenta
''Duma florulenta'' (synonym ''Muehlenbeckia florulenta''), commonly known as tangled lignum or often simply lignum, is a plant native to inland Australia. It is associated with wetland habitats, especially those in arid and semiarid regions subject to cycles of intermittent flooding and drying out. The Wiradjuri name for the plant is gweeargal, and the Walmajarri name is ''Kirinykiriny'', or ''Kurinykuriny''. Description Lignum is a perennial, monoecious shrub, growing to 2.5 m in height, with its multitude of thin, intertwined and tangled branches and branchlets forming dense thickets to the exclusion of other species. Its thin, narrow leaves are 15–70 mm long and 2–10 mm wide. The grey-green stems often end in a sharp point. The flowers are small and cream to yellowish, solitary or clustered along the branchlets and occurring through most of the year. The fruit is top-shaped, dry, and about 5 mm long. File:Lignum foliage.jpg, Foliage File:Lignum b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctotheca Calendula
''Arctotheca calendula'' is a plant in the Asteraceae, sunflower family commonly known as capeweed, plain treasureflower, cape dandelion, or cape marigold because it originates from the Cape Province in South Africa. It is also found in neighboring KwaZulu-Natal. Description ''Arctotheca calendula'' is a squat perennial or annual which grows in Rosette (botany), rosettes and sends out stolons and can spread across the ground quickly. The leaves are covered with white woolly hairs, especially on their undersides. The leaves are lobed or deeply toothed. Hairy stems bear daisy-like flowers with small yellow petals that sometimes have a green or purple tint surrounded by white or yellow ray petals extending further out from the flower centers. Cultivation It is cultivated as an attractive ornamental groundcover but has invasive potential when introduced to a new area. The plant can vegetative reproduction, reproduce vegetatively or seed, via seed. Seed-bearing plants are most likely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poa Caespitosa
''Poa caespitosa'' is a synonym for various grasses in the ''Poa'' genus. *''Poa caespitosa'' (G. Forst.) Hook. ex Speg. – ''Poa flabellata'' *''Poa caespitosa'' Poir. – ''Poa nemoralis'' *''Poa caespitosa'' Sprengel – '' Poa cita'' *''Poa caespitosa alpina'' F.Muell. – '' Poa gunnii'' *''Poa caespitosa'' var. ''affinis'' (R.Br.) Benth. – ''Poa affinis'' *''Poa caespitosa'' var. ''australis'' Benth. – ''Poa sieberiana'' *''Poa caespitosa'' var. ''latifolia'' Benth. – '' Poa ensiformis'' *''Poa caespitosa'' var. ''plebeia'' (R. Br.) Benth. – ''Poa poiformis ''Poa poiformis'', commonly known as coast tussock-grass or blue tussock-grass, is a densely tufted, erect, perennial tussock grass, with distinctive blue-green leaves, that grows to about 1 m in height. Its inflorescences are arranged in a ...'' *''Poa caespitosa'' var. ''serpentum'' (Nees) Benth. – '' Poa porphyroclados'' *''Poa caespitosa'' var. ''tenera'' (Hook.f.) Benth. – '' Poa tenera'' {{Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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