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Microchera
''Microchera'' is a genus of hummingbirds. Species The genus includes three species: *Snowcap, ''Microchera albocoronata'' * Coppery-headed emerald, ''Microchera cupreiceps'' * White-tailed emerald, ''Microchera chionura'' The white-tailed emerald and the coppery-headed emerald were formerly placed in the genus ''Elvira''. A molecular phylogenetic study published in 2014 found that these two species were closely related to the snowcap The snowcap (''Microchera albocoronata'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica, Honduras, Nicaragua, and Panama.HBW and BirdLife International (2021) Handbook of th ... in the genus ''Microchera''. The three species were therefore placed together in ''Microchera'' which has priority. References Microchera Bird genera {{hummingbird-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microchera
''Microchera'' is a genus of hummingbirds. Species The genus includes three species: *Snowcap, ''Microchera albocoronata'' * Coppery-headed emerald, ''Microchera cupreiceps'' * White-tailed emerald, ''Microchera chionura'' The white-tailed emerald and the coppery-headed emerald were formerly placed in the genus ''Elvira''. A molecular phylogenetic study published in 2014 found that these two species were closely related to the snowcap The snowcap (''Microchera albocoronata'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica, Honduras, Nicaragua, and Panama.HBW and BirdLife International (2021) Handbook of th ... in the genus ''Microchera''. The three species were therefore placed together in ''Microchera'' which has priority. References Microchera Bird genera {{hummingbird-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowcap
The snowcap (''Microchera albocoronata'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica, Honduras, Nicaragua, and Panama.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The snowcap has two subspecies, the nominate ''M. a. albocoronata'' and ''M. a. parvirostris''. The nominate was originally described as ''Mellisuga albo-coronata'' and the other as ''Panychlora parvirostris''.Kistler, E. and T. S. Schulenberg (2020). Snowcap (''Microchera albocoronata''), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.snowca1.01 retrieved August 28, 2022 Description Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowcap
The snowcap (''Microchera albocoronata'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica, Honduras, Nicaragua, and Panama.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The snowcap has two subspecies, the nominate ''M. a. albocoronata'' and ''M. a. parvirostris''. The nominate was originally described as ''Mellisuga albo-coronata'' and the other as ''Panychlora parvirostris''.Kistler, E. and T. S. Schulenberg (2020). Snowcap (''Microchera albocoronata''), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.snowca1.01 retrieved August 28, 2022 Description Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-tailed Emerald
The white-tailed emerald (''Microchera chionura'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Costa Rica and Panama.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The white-tailed emerald was formerly placed with the coppery-headed emerald in the genus ''Elvira''. A molecular phylogenetic study published in 2014 found that these two species were closely related to the snowcap in the then-monospecific genus ''Microchera''. The International Ornithological Committee and the Clements taxonomy placed the three species together in ''Microchera'' which has priority. However, BirdLife International's ''Handbook of the Birds of the World'' retains them in '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coppery-headed Emerald
The coppery-headed emerald (''Microchera cupreiceps'') is a small hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Costa Rica.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The coppery-headed emerald was formerly placed with the white-tailed emerald (''M. chionura'') in the genus ''Elvira''. A molecular phylogenetic study published in 2014 found that these two species were closely related to the snowcap in the then-monospecific genus ''Microchera''. The International Ornithological Committee and the Clements taxonomy placed the three species together in ''Microchera'' which has priority. However, BirdLife International's ''Handbook of the Birds of the World'' retains the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, Henry Constantine Richter, Joseph Wolf and William Matthew Hart. 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 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 a position on an estate near Guildford, Surrey, and then in 1818, Gould Snr became foreman in the Royal Gardens of Windsor. Gould then be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hummingbird
Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics around the equator. They are small birds, with most species measuring in length. The smallest extant hummingbird species is the bee hummingbird, which weighs less than . The largest hummingbird species is the giant hummingbird, weighing . They are specialized for feeding on flower nectar, but all species also consume flying insects or spiders. Hummingbirds split from their sister group, the swifts and treeswifts, around 42 million years ago. The common ancestor of extant hummingbirds is estimated to have lived 22 million years ago in South America. They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetic
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 framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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