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Rhogeessa Permutandis
''Rhogeessa'' is a genus of bats within the vesper bats family, Vespertilionidae. Species *Yucatan yellow bat (''R. aenea'') * Bickham's little yellow bat (''Rhogeessa bickhami'') * Genoways's yellow bat (''R. genowaysi'') * Husson's yellow bat (''R. hussoni'') * Thomas's yellow bat (''R. io'') * Menchu's little yellow bat (''R. menchuae'') * Tiny yellow bat (''R. minutilla'') * Least yellow bat (''R. mira'') * Little yellow bat (''R. parvula'') *'' Rhogeessa permutandis'' *Black-winged little yellow bat (''R. tumida'') * Ecuadorian little yellow bat (''R. velilla'') Taxonomy debate This genus is systematically complex and sometimes controversial. One reason that the genus is complex is because of the species' variable karyotypes:Baird, A. B., Hillis, D. M., Patton, J. C., & Bickham, J. W. (2008)Evolutionary history of the genus Rhogeessa (Chiroptera: Vespertilionidae) as revealed by mitochondrial DNA sequences Journal of Mammalogy, 89(3), 744-754. *Note that ''R. tumida'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yucatan Yellow Bat
The Yucatan yellow bat (''Rhogeessa aenea'') is a species of bat found in the Yucatán Peninsula in Mexico, and possibly also in Belize and Guatemala. These small insectivorous bats forage on flying insects (most likely mosquitoes) at dawn and dusk. Biology Historically, evidence of hybridization between the Yucatan yellow bat and the black-winged little yellow bat The black-winged little yellow bat (''Rhogeessa tumida'') is a species of vesper bat native to Central America. Description The black-winged little yellow bat is a small bat, with a total length of between , and no significant difference in size ... has been observed. Range and habitat A small population of these bats has been observed on Spanish Lookout Caye, Belize, since at least 1998. They are on both the east and west sides of the mangrove caye, which is located east of Belize City in the Drowned Cayes Range. According to the locals who work on the caye, the bats are thought to roost in the coconut trees d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecuadorian Little Yellow Bat
''Rhogeessa velilla'', also called the Ecuadorian little yellow bat, is a species of vesper bat in the genus ''Rhogeessa''. It is found in Northwestern Peru and parts of Ecuador. The species was previously included in '' R. io'', but is now recognized as a separate species. Very little is known about this species, though it is generally considered to be insectivorous. Taxonomy ''Rhogeessa velilla'' was described as a new species in 1903 by British zoologist Oldfield Thomas. The holotype was collected by Perry O. Simons on Puná Island in 1898. In 1958, George Gilbert Goodwin published that he considered it a subspecies of the little yellow bat (''R. parvula''). In 1973, R. K. LaVal published that it should instead be considered a subspecies of the black-winged little yellow bat (''R. tumida''). In 1996, Hugh H. Genoways and Robert James Baker elevated Thomas's yellow bat (''R. io'') from a subspecies of the black-winged little yellow bat; ''R. velilla'' was then considered syno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of North America
Bats are flying mammals of the order Chiroptera (). With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox (''Acerodon jubatus'') reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats. But more recent evidence has supported dividing the order into Yinpterochiroptera and Yangochiroptera, with megabats as members of the former al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bat Genera
Bats are flying mammals of the Order (biology), order Chiroptera (). With their forelimbs adapted as Bat wing development, wings, they are the only mammals capable of true and sustained Bat flight, flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the Smallest organisms, smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox (''Acerodon jubatus'') reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the Animal echolocation, echolocating microbats. But more recent evidence has supported dividing the or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhogeessa
''Rhogeessa'' is a genus of bats within the vesper bats family, Vespertilionidae. Species *Yucatan yellow bat (''R. aenea'') * Bickham's little yellow bat (''Rhogeessa bickhami'') * Genoways's yellow bat (''R. genowaysi'') * Husson's yellow bat (''R. hussoni'') * Thomas's yellow bat (''R. io'') * Menchu's little yellow bat (''R. menchuae'') * Tiny yellow bat (''R. minutilla'') * Least yellow bat (''R. mira'') * Little yellow bat (''R. parvula'') *'' Rhogeessa permutandis'' *Black-winged little yellow bat (''R. tumida'') * Ecuadorian little yellow bat (''R. velilla'') Taxonomy debate This genus is systematically complex and sometimes controversial. One reason that the genus is complex is because of the species' variable karyotypes:Baird, A. B., Hillis, D. M., Patton, J. C., & Bickham, J. W. (2008)Evolutionary history of the genus Rhogeessa (Chiroptera: Vespertilionidae) as revealed by mitochondrial DNA sequences Journal of Mammalogy, 89(3), 744-754. *Note that ''R. tumida'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants The ''International Code of Nomenclature for algae, fungi, and plants'' (ICN or ICNafp) is the set of rules and recommendations dealing with the formal botanical names that are given to plants, fungi and a few other groups of organisms, all tho ... (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic grouping (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 received currency during the debates of the 1960s and 1970s accompanying the rise of cladistics, having been coined by zoologist Willi Hennig to apply to well-known taxa like Reptilia (reptiles), which is paraphyletic with respect to birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slender Yellow Bat
The slender yellow bat (''Baeodon gracilis'') is a species of vesper bat. It is found only in Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar .... It ranges from Jalisco and Zacatecas to Oaxaca states, where it has been found in pine and pine-oak forests, tropical dry forest, and dry shrublands from 600 to 2,000 meters elevation. References Mammals described in 1897 Taxa named by Gerrit Smith Miller Jr. Bats of Mexico Endemic mammals of Mexico Fauna of the Sierra Madre del Sur Balsas dry forests Taxonomy articles created by Polbot {{Vespertilionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allen's Yellow Bat
Allen's yellow bat (''Baeodon alleni'') is a species of vesper bat. There is some taxonomic debate surrounding this species, with some authors considering ''Baeodon'' a genus rather than a subgenus. It is endemic to Mexico. Taxonomy and etymology It was described as a new species in 1892 by British zoologist Oldfield Thomas. Thomas noted that the eponym for the species name "''alleni''" was Harrison Allen, calling him "the chief authority on North-American bats." In 1906, Gerrit Smith Miller Jr. placed Allen's yellow bat into a newly-coined genus, ''Baeodon''. At present, some authors keep Allen's yellow bat as part of ''Rhogeessa'' within the subgenus ''Baeodon'', while others believe that it is distinct enough that ''Baeodon'' should be considered a monotypic genus rather than a subgenus. Description It is a small species of bat, weighing only . It has large ears, with long tragi. The tragi are rounded at the tips, with a straight or slightly concave inner margin and a sligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as plant variety (botany), varieties), which may be a complex ranking but it is not a species complex. In most cases, a specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromosome
A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins; in eukaryotic cells, the most important of these proteins are the histones. Aided by chaperone proteins, the histones bind to and condense the DNA molecule to maintain its integrity. These eukaryotic chromosomes display a complex three-dimensional structure that has a significant role in transcriptional regulation. Normally, chromosomes are visible under a light microscope only during the metaphase of cell division, where all chromosomes are aligned in the center of the cell in their condensed form. Before this stage occurs, each chromosome is duplicated ( S phase), and the two copies are joined by a centromere—resulting in either an X-shaped structure if the centromere is located equatorially, or a two-armed structure if the centromere is located distally; the jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
