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Polyura Bicolor
''Polyura'' is a subgenus of butterflies also referred to as Nawab butterflies and belonging to the brush-footed butterfly subfamily Charaxinae, or leafwing butterflies. Like the large and conspicuous forest queens (subgenus '' Euxanthe''), they belong to the genus ''Charaxes'', unique genus of the tribe Charaxini. Distribution ''Polyura'' butterflies are native to the Indomalayan and Australasian realms. They are widespread from Pakistan to Okinawa Island, and from China to Pacific Islands ( Fiji, New Caledonia, Vanuatu). Systematics * The subgenus ''Polyura'' was described by the Swedish naturalist Gustaf Johan Billberg in 1820. * The type species is ''Polyura pyrrhus'' (Linnaeus). Taxonomy The subgenus was revised in 1982 by Robert Leslie Smiles based on morphological characters. The genus ''Polyura'' was synonymized with the genus ''Charaxes'' in 2009 in a study investigating phylogenetic relationships among Charaxini using DNA sequencing. However the genus ''Char ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyura Schreiber
''Polyura schreiber'', the blue nawab, is a butterfly species found in tropical Asia. It belongs to the Charaxinae (rajahs and nawabs) in the brush-footed butterfly family (Nymphalidae). It occurs from south India and Assam through Myanmar, Tenasserim, and Southeast Asia to southern China and to Java, Indonesia. Description ''Polyura schreiber wardii'' The South Indian subspecies: Male has upperside ground colour black, glossed slightly with dull indigo-blue, or, in some specimens, light green at the base of the wings. Forewings and hindwings with a broad white discal bar from interspace 4 in forewing to just below the apex of the median vein in the hindwing, narrowing on the latter wing to a point. This bar has, on the outer side on both forewings and hindwings, an irregular border of small-blue, which is narrowest anteriorly and broadens posteriorly respectively on both forewings and hindwings. Forewing with, in addition, a white rectangular spot in interspace 5 and a small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiji
Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about 110 are permanently inhabited—and more than 500 islets, amounting to a total land area of about . The most outlying island group is Ono-i-Lau. About 87% of the total population of live on the two major islands, Viti Levu and Vanua Levu. About three-quarters of Fijians live on Viti Levu's coasts: either in the capital city of Suva; or in smaller urban centres such as Nadi—where tourism is the major local industry; or in Lautoka, where the sugar-cane industry is dominant. The interior of Viti Levu is sparsely inhabited because of its terrain. The majority of Fiji's islands were formed by volcanic activity starting around 150 million years ago. Some geothermal activity st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charaxes Agrarius
''Charaxes agrarius'', the anomalous nawab, is a butterfly found in Asia that belongs to the rajahs and nawabs group, that is, the Charaxinae subfamily of the brush-footed butterflies family. The name is based on their resemblance to the common nawab (''Polyura athamas''), which was described before the discovery of this species. Description See also *''Polyura athamas'' *List of butterflies of India (Nymphalidae) This is a list of the butterflies of India belonging to the family Nymphalidae and an index to the species articles. This forms part of the full List of butterflies of India. Danainae (26 spp) See List of butterflies of India (Danainae). Morph ... Footnotes References * * Polyura {{Charaxinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different, but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific ( Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colonies) and New Zealand. Australasia found continued geopolitical attention in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biogeography
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.Brown University, "Biogeography." Accessed February 24, 2014. . Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals. Mycogeography is the branch that studies distribution of fungi, such as mushrooms. Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, taxonomy, geology, physical geography, palaeontology, and climatology.Dansereau, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charaxes Pleione
''Charaxes pleione'', the common orange charaxes, or square-winged red charaxes, is a butterfly in the family Nymphalidae. It is found in Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Nigeria, Cameroon, Gabon, the Republic of the Congo, the Central African Republic, Angola, the Democratic Republic of the Congo, Uganda, Kenya, Rwanda and Tanzania. Description Hindwing between the anal angle and vein 4 nearly straight, at vein 2 feebly angled but not tailed, at vein 4 with a short tail, only about 3 mm. in length. Wings above red-brown; apex and distal margin of the forewing more or less broadly black. Wings beneath with a common dark transverse line, extending from the costal margin of the forewing, just before the apex, to the anal angle of the hindwing. Costal margin of the forewing beneath in cellule 12 white or whitish to the end of the cell.-''lichas'' Dbl. male The black colour of the apical area of the forewing extends to the apex of the cell and is either spotted at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charaxes Paphianus
''Charaxes paphianus'', the falcate red charaxes, is a butterfly in the family Nymphalidae. It is found in Sierra Leone, Guinea, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Gabon, the Republic of the Congo, the Central African Republic, Angola, the Democratic Republic of the Congo, Uganda, Sudan and Kenya. The habitat consists of primary lowland evergreen forests. The larvae feed on ''Acacia'' species, including '' A. brevispica''. Short description Forewing with concave edge and sharp point and reddish-brown-yellow ground colour. The termen black edged with a width of 2–4 mm black; two black costal marks and some black discal flecks. The cross line of the underside forewing bent. Underside paler with a cross line separating a paler inner area from a less pale outer area; almost everywhere with grey satin. Subspecies *''Charaxes paphianus paphianus'' (Nigeria, Cameroon, Gabon, Congo, Central African Republic, northern Angola, Democratic Republic of the Congo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenomics
Phylogenomics is the intersection of the fields of evolution and genomics. The term has been used in multiple ways to refer to analysis that involves genome data and evolutionary reconstructions. It is a group of techniques within the larger fields of phylogenetics and genomics. Phylogenomics draws information by comparing entire genomes, or at least large portions of genomes. Phylogenetics compares and analyzes the sequences of single genes, or a small number of genes, as well as many other types of data. Four major areas fall under phylogenomics: * Prediction of gene function * Establishment and clarification of evolutionary relationships * Gene family evolution * Prediction and retracing lateral gene transfer. The ultimate goal of phylogenomics is to reconstruct the evolutionary history of species through their genomes. This history is usually inferred from a series of genomes by using a genome evolution model and standard statistical inference methods (e.g. Bayesian inference or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequencing
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
