| Heliaeschna cynthiae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Odonata |
| Infraorder: | Anisoptera |
| Family: | Aeshnidae |
| Genus: | Heliaeschna |
| Species: | H. cynthiae |
| Binomial name | |
| Heliaeschna cynthiae Fraser, 1939 | |
Heliaeschna cynthiae is a species of dragonfly in the family Aeshnidae. It is found in Cameroon, Uganda, and Zambia. Its natural habitat is subtropical or tropical moist lowland forests.
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 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, 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 binominal nomenclature for naming organisms.
A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" after a period of apparent absence.
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit.
The Aeshnidae, also called aeshnids, hawkers, or darners, is a family of dragonflies. The family includes the largest dragonflies found in North America and Europe and among the largest dragonflies on the planet.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status exist and are in use at international, multi-country, national and local levels as well as for consumer use.
The phases of Venus are the variations of lighting seen on the planet's surface, similar to lunar phases. The first recorded observations of them are thought to have been telescopic observations by Galileo Galilei in 1610. Although the extreme crescent phase of Venus has since been observed with the naked eye, there are no indisputable historical pre-telescopic records of it being described or known.
Ostrea is a genus of edible oysters, marine bivalve mollusks in the family Ostreidae, the oysters.
Elliot Charles Gordon Pinhey was an entomologist who worked in Africa and specialised in African Lepidoptera and Odonata. Born of British parents on holiday in Belgium, Pinhey made major contributions in entomology to the knowledge of butterflies, moths and dragonflies. Elliot Pinhey's interest in natural history first developed during his early education in England.
Heliaeschna is a genus of dragonflies in the family Aeshnidae.
Heliaeschna fuliginosa is a species of dragonfly in the family Aeshnidae. It is found in Angola, Cameroon, Central African Republic, the Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Liberia, Nigeria, Sierra Leone, and Uganda. Its natural habitat is subtropical or tropical moist lowland forests.
Heliaeschna trinervulata is a species of dragonfly in the family Aeshnidae. It is known commonly as the pale duskhawker. This dragonfly is found in Cameroon, the Democratic Republic of the Congo, Malawi, Mozambique, Tanzania, Uganda, Zambia, and possibly Nigeria. Its natural habitat is subtropical or tropical moist lowland forests.
Heliaeschna ugandica is a species of dragonfly in the family Aeshnidae, known commonly as the Uganda duskhawker. It is found in Angola, the Democratic Republic of the Congo, and Uganda. Its natural habitat is subtropical or tropical moist lowland forests.
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration.
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.
Sisicottus is a genus of sheet weavers that was first described by S. C. Bishop & C. R. Crosby in 1938. They can be found in moss and litter of conifer forests.
| This article related to Aeshnidae is a stub. You can help Wikipedia by expanding it. |
