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Dicroaspis Laevidens
''Dicroaspis'' is an African genus of ants in the subfamily Myrmicinae. Distribution Known from central Africa, the genus contains two species. However, due to the little material available, they may represent variations the same species. A third hitherto undescribed species is known from Kakamega Forest, Kenya. Description The genus was first described by Emery (1908), but was reclassified a few years later as a subgenus of '' Calyptomyrmex'' by Emery (1915). The taxon was finally raised to genus rank by Bolton (1981). Workers are about 2.5–3 mm long and have small eyes. Their antennae with 11 segments can be used to separate ''Dicroaspis'' from the related and similar genus ''Calyptomyrmex''. Little is known about their biology, but they appear to live in the leaf litter of rainforests. Species * '' Dicroaspis cryptocera'' Emery, 1908 * '' Dicroaspis laevidens'' (Santschi Felix Santschi (1 December 1872 – 20 November 1940) was a Swiss entomologist known for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central African Republic
The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of the Congo to the southwest, and Cameroon to the west. The Central African Republic covers a land area of about . , it had an estimated population of around million. , the Central African Republic is the scene of a civil war, ongoing since 2012. Most of the Central African Republic consists of Sudano-Guinean savannas, but the country also includes a Sahelo- Sudanian zone in the north and an equatorial forest zone in the south. Two-thirds of the country is within the Ubangi River basin (which flows into the Congo), while the remaining third lies in the basin of the Chari, which flows into Lake Chad. What is today the Central African Republic has been inhabited for millennia; however, the country's current borders were established by Fran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: 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 (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AntWeb
AntWeb is the leading online database on ants: storing specimens images and records, and natural history information, and documenting over 490,000 specimens across over 35,000 taxa of ants in its open source and community driven repository . It was set up by Brian L. Fisher Brian L. Fisher (born 1964 or 1965) is an American entomologist who works on the systematics of arthropods, with a particular focus on ants. He has discovered over 1000 species, including 900 species of ants in Madagascar. He mainly conducts fiel ... in 2002, and cost US$30,000 dollars to build. References External links Website Entomological databases Myrmecology {{Database-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix Santschi
Felix Santschi (1 December 1872 – 20 November 1940) was a Swiss entomologist known for discovering that ants use the sun as a compass and for describing about 2000 taxa of ants. Santschi is known for his pioneering work on the navigational abilities of ants. In one experiment, he investigated the way harvester ants used the sky to navigate. He found that as long as even a small patch of sky was visible, the ants could return directly to the nest after gathering food. However, when the sky was completely hidden, they lost their sense of direction and began moving haphazardly. Some seventy years later it was shown that ants are guided by the polarization Polarization or polarisation may refer to: Mathematics *Polarization of an Abelian variety, in the mathematics of complex manifolds *Polarization of an algebraic form, a technique for expressing a homogeneous polynomial in a simpler fashion by ... of light. References 1872 births 1940 deaths Swiss entomologists Myrmec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicroaspis Laevidens
''Dicroaspis'' is an African genus of ants in the subfamily Myrmicinae. Distribution Known from central Africa, the genus contains two species. However, due to the little material available, they may represent variations the same species. A third hitherto undescribed species is known from Kakamega Forest, Kenya. Description The genus was first described by Emery (1908), but was reclassified a few years later as a subgenus of '' Calyptomyrmex'' by Emery (1915). The taxon was finally raised to genus rank by Bolton (1981). Workers are about 2.5–3 mm long and have small eyes. Their antennae with 11 segments can be used to separate ''Dicroaspis'' from the related and similar genus ''Calyptomyrmex''. Little is known about their biology, but they appear to live in the leaf litter of rainforests. Species * '' Dicroaspis cryptocera'' Emery, 1908 * '' Dicroaspis laevidens'' (Santschi Felix Santschi (1 December 1872 – 20 November 1940) was a Swiss entomologist known for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainforest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainforest, but other types have been described. Estimates vary from 40% to 75% of all biotic species being indigenous to the rainforests. There may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the " world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. Definition Rainforest are characterized by a closed and continuous tree canopy, high humidity, the presence of moisture-dependent vegetation, a moist layer of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Litter
Plant litter (also leaf litter, tree litter, soil litter, litterfall or duff) is dead plant material (such as leaves, bark, needles, twigs, and cladodes) that have fallen to the ground. This detritus or dead organic material and its constituent nutrients are added to the top layer of soil, commonly known as the litter layer or O horizon ("O" for "organic"). Litter is an important factor in ecosystem dynamics, as it is indicative of ecological productivity and may be useful in predicting regional nutrient cycling and soil fertility. Characteristics and variability Litterfall is characterized as fresh, undecomposed, and easily recognizable (by species and type) plant debris. This can be anything from leaves, cones, needles, twigs, bark, seeds/nuts, logs, or reproductive organs (e.g. the stamen of flowering plants). Items larger than 2 cm diameter are referred to as coarse litter, while anything smaller is referred to as fine litter or litter. The type of litterfall is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (biology)
Antennae ( antenna), sometimes referred to as "feelers", are paired appendages used for Sensory system, sensing in arthropods. Antennae are connected to the first one or two Segmentation (biology), segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing tactition, touch, air motion, heat, vibration (sound), and especially insect olfaction, smell or gustation, taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate (biology), substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members if the insect lives in a group, lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxon
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calyptomyrmex
''Calyptomyrmex'' is a genus of ants in the subfamily Myrmicinae. The genus is distributed from Africa to India and east to New Caledonia. They are mainly found in the rainforest, where they forage alone or in small numbers. Species *''Calyptomyrmex arnoldi'' (Forel, 1913) *'' Calyptomyrmex asper'' Shattuck, 2011 *'' Calyptomyrmex barak'' Bolton, 1981 *''Calyptomyrmex beccarii'' Emery, 1887 *'' Calyptomyrmex brevis'' Weber, 1943 *''Calyptomyrmex brunneus'' Arnold, 1948 *''Calyptomyrmex caledonicus'' Shattuck, 2011 *'' Calyptomyrmex clavatus'' Weber, 1952 *''Calyptomyrmex claviseta'' (Santschi, 1914) *''Calyptomyrmex danum'' Shattuck, 2011 *''Calyptomyrmex duhun'' Bolton, 1981 *''Calyptomyrmex foreli'' Emery, 1915 *''Calyptomyrmex fragarus'' Shattuck, 2011 *''Calyptomyrmex friederikae'' Kutter, 1976 *''Calyptomyrmex fritillus'' Shattuck, 2011 *''Calyptomyrmex grammus'' Shattuck, 2011 *''Calyptomyrmex kaurus'' Bolton, 1981 *''Calyptomyrmex lineolus'' Shattuck, 2011 *''Calyptomyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenya
) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi , official_languages = Constitution (2009) Art. 7 ational, official and other languages"(1) The national language of the Republic is Swahili. (2) The official languages of the Republic are Swahili and English. (3) The State shall–-–- (a) promote and protect the diversity of language of the people of Kenya; and (b) promote the development and use of indigenous languages, Kenyan Sign language, Braille and other communication formats and technologies accessible to persons with disabilities." , languages_type = National language , languages = Swahili , ethnic_groups = , ethnic_groups_year = 2019 census , religion = , religion_year = 2019 census , demonym = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
