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Metallic-green Tanager
The metallic-green tanager (''Tangara labradorides'') is a species of bird in the family Thraupidae. It is found in Colombia, Ecuador, and Peru. Its natural habitat is subtropical or tropical moist montane forests. Taxonomy and systematics The blue-and-black tanager was first described as ''Tanagra (Aglaia) labradorides'' by Auguste Boissonneau in 1840 on the basis of a specimen from Santa Fe, Colombia. The generic name ''Tangara'' comes from the Tupí word ''tangara'', meaning dancer. The specific name ''labradorides'' is from the French ''pierre de Labrador'' (feldspar), and the Ancient Greek -''ides'', meaning resembling, referring to the species' metallic blue-green color, which resembles that of feldspar. Metallic-green tanager is the official common name designated by the International Ornithologists' Union (IOC). The metallic-green tanager is one of 27 species in the genus '' Tangara''. It was previously thought to form a species group with the blue-browed and golden- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auguste Boissonneau
Auguste Boissonneau (26 July 1802, Saumur – 7 July 1883, Paris) was a French ornithologist and ocularist. In the latter field he was a pioneer of ocular prosthesis. As an ornithologist, he was the taxonomic authority of numerous species native to tropical and subtropical South America. The hummingbird genus '' Boissonneaua'' ( Reichenbach, 1854) commemorates his name, as does the species '' Pseudocolaptes boissonneautii'' (streaked tuftedcheek), a bird circumscribed by Frédéric de Lafresnaye in 1840. Ornithological taxa described by Boissonneau * Black-chested mountain tanager - ''Cnemathraupis eximia''. * Blue-and-black tanager - ''Tangara vassorii''. * Blue cotinga - ''Cotinga nattererii''. * Bronze-tailed thornbill - ''Chalcostigma heteropogon''. * Buff-breasted mountain tanager - ''Dubusia taeniata''. * Collared inca - ''Coeligena torquata''. * Colombian mountain grackle - ''Macroagelaius subalaris''. * Crimson-mantled woodpecker - ''Piculus rivolii''. * Glos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue-browed Tanager
The blue-browed tanager (''Tangara cyanotis'') is a species of bird in the family Thraupidae. It is found in Bolivia, Colombia, Ecuador, and Peru. Its natural habitat is subtropical or tropical moist montane forests. Taxonomy and systematics The blue-browed tanager was first described as ''Calliste cyanotis'' by Philip Sclater in 1858, on the basis of a specimen sent by M. Verreaux. The generic name '' Tangara'' is from the Tupí word ''tangara'', meaning dancer. The specific name ''cyanotis'' is from the Ancient Greek words κυανος (''kuanos''), meaning dark blue, and ωτις (''otis''), meaning eared. Blue-browed tanager is the official common name designated by the International Ornithologists' Union (IOC). The blue-browed tanager is one of 27 species in the genus ''Tangara''. Within the genus, it is placed in a species group with the golden-naped tanager and the metallic-green tanager. While DNA evidence suggests that the golden-naped tanager is not closely related t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Ecuadorian Andes
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. Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Colombian Andes
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] |
Tangara (genus)
''Tangara '' is a large genus of birds of the tanager family. It includes 27 species. All are from the Neotropics, and while most are fairly widespread, some have small distributions and are threatened. They are fairly small, ranging in size from . This genus includes some of the most spectacularly colored birds of the world. Taxonomy and species list The genus ''Tangara'' was introduced by the French zoologist Mathurin Jacques Brisson in 1760 with the paradise tanager (''Tangara chilensis'') as the type species. The name means "dancer" in the extinct Tupi language. The genus formerly included additional species. A molecular phylogenetic study published in 2014 found that many of the members of ''Thraupis'' was embedded within ''Tangara''. In the reorganization to create monophyletic genera, rather than merging ''Thraupis'' into ''Tangara'' to create an unusually large genus with around 58 species, taxonomists chose to split off species from ''Tangara'' into four other genera. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primary Flight Feather
Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the tail are called rectrices (), singular rectrix (). The primary function of the flight feathers is to aid in the generation of both thrust and lift, thereby enabling flight. The flight feathers of some birds have evolved to perform additional functions, generally associated with territorial displays, courtship rituals or feeding methods. In some species, these feathers have developed into long showy plumes used in visual courtship displays, while in others they create a sound during display flights. Tiny serrations on the leading edge of their remiges help owls to fly silently (and therefore hunt more successfully), while the extra-stiff rectrices of woodpeckers help them to brace against tree trunks as they hammer on them. Even flightless bir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdomen
The abdomen (colloquially called the belly, tummy, midriff, tucky or stomach) is the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The abdomen is the front part of the abdominal segment of the torso. The area occupied by the abdomen is called the abdominal cavity. In arthropods it is the posterior (anatomy), posterior tagma (biology), tagma of the body; it follows the thorax or cephalothorax. In humans, the abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim. The pelvic brim stretches from the lumbosacral joint (the intervertebral disc between Lumbar vertebrae, L5 and Vertebra#Sacrum, S1) to the pubic symphysis and is the edge of the pelvic inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear. In vertebrates, the abdomen is a large body c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Chapman (ornithologist)
Frank Michler Chapman (June 12, 1864 – November 15, 1945) was an American ornithologist and pioneering writer of field guides. Biography Chapman was born in West Englewood, New Jersey and attended Englewood Academy. He joined the staff of the American Museum of Natural History in 1888 as assistant to Joel Asaph Allen. In 1901 he was made associate Curator of Mammals and Birds and in 1908 Curator of Birds. Chapman came up with the original idea for the Audubon Christmas Bird Count. He also wrote many ornithological books such as, ''Bird Life'', ''Birds of Eastern North America'', and ''Life in an Air Castle''. Chapman promoted the integration of photography into ornithology, especially in his book ''Bird Studies With a Camera'', in which he discussed the practicability of the photographic blind and in 1901 invented his own more portable version of a blind using an umbrella with a large 'skirt' to conceal the photographer that could be bundled into a small pack for transpor ... [...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] |
Nucleotide Sequences
A nucleic acid sequence is a succession of bases signified by a series of a set of five different letters that indicate the order of nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. By convention, sequences are usually presented from the 5' end to the 3' end. For DNA, the sense strand is used. Because nucleic acids are normally linear (unbranched) polymers, specifying the sequence is equivalent to defining the covalent structure of the entire molecule. For this reason, the nucleic acid sequence is also termed the primary structure. The sequence has capacity to represent information. Biological deoxyribonucleic acid represents the information which directs the functions of an organism. Nucleic acids also have a secondary structure and tertiary structure. Primary structure is sometimes mistakenly referred to as ''primary sequence''. Conversely, there is no parallel concept of secondary or tertiary sequence. Nucleotides Nucleic acids consi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Divergence
Genetic divergence is the process in which two or more populations of an ancestral species accumulate independent genetic changes (mutations) through time, often leading to reproductive isolation and continued mutation even after the populations have become Reproductive isolation, reproductively isolated for some period of time, as there isn’t genetic exchange anymore. In some cases, subpopulations living in ecologically distinct peripheral environments can exhibit genetic divergence from the remainder of a population, especially where the range of a population is very large (see parapatric speciation). The genetic differences among divergent populations can involve silent mutations (that have no effect on the phenotype) or give rise to significant Morphology (biology), morphological and/or physiology, physiological changes. Genetic divergence will always accompany reproductive isolation, either due to novel adaptations via selection and/or due to genetic drift, and is the principal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and most of its descendants, excluding a few monophyletic subgroups. The group is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic group (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term was coined by Willi Hennig to apply to well-known taxa like Reptilia ( reptiles) which, as commonly named and traditionally defined, is paraphyletic with respect to mammals and birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancestor, including all extant reptiles as well as the extinct synapsids, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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