| Heteracantha depressa | |
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| Genus: | Heteracantha Brulle, 1834 |
| Species: | H. depressa |
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| Heteracantha depressa Brulle, 1834 | |
Heteracantha depressa is a species of beetle in the family Carabidae, the only species in the genus Heteracantha. [1]
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, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise 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 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.
Vachellia tortilis, widely known as Acacia tortilis but now attributed to the genus Vachellia, is the umbrella thorn acacia, also known as umbrella thorn and Israeli babool, a medium to large canopied tree native to most of Africa, primarily to the savanna and Sahel of Africa, but also occurring in the Middle East.
Giant wētā are several species of wētā in the genus Deinacrida of the family Anostostomatidae. Giant wētā are endemic to New Zealand and all but one species are protected by law because they are considered at risk of extinction.
Deinacrida fallai or the Poor Knights giant wētā is a species of insect in the family Anostostomatidae. It is endemic to the Poor Knights Islands off northern New Zealand. D. fallai are commonly called giant wētā due to their large size. They are one of the largest insects in the world, with a body length measuring up to 73 mm. Their size is an example of island gigantism. They are classified as vulnerable by the IUCN due to their restricted distribution.
Deinacrida heteracantha, also known as the Little Barrier giant wētā or wētāpunga, is a wētā in the order Orthoptera and family Anostostomatidae. It is endemic to New Zealand, where it survived only on Little Barrier Island, although it has been translocated to some other predator-free island conservation areas. This very large flightless wētā mainly feeds at night, but is also active during the day, when it can be found above ground in vegetation. It has been classified as vulnerable by the IUCN due to ongoing population declines and restricted distribution.
Capparis is a flowering plant genus, comprising around 250 species in the family Capparaceae which is included in the Brassicaceae in the unrevised APG II system. These plants are shrubs or lianas and are collectively known as caper shrubs or caperbushes. Capparis species occur over a wide range of habitat in the subtropical and tropical zones.
In biology, 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. It is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. 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.
Munida is the largest genus of squat lobsters in the family Munididae, with over 240 species.
Munida alia is a species of squat lobster in the family Munididae. The specific epithet is derived from the Latin alius, meaning "another", in reference to the other species that are centered around M. heteracantha. M. alia is found off of central Queensland, at depths between about 490 and 510 metres.
Harpalini is a tribe of a diverse group of ground beetles belonging to the subfamily Harpalinae within the broader family Carabidae. The tribe contains more than 1,900 species.
Corinne Hannah Watts is a New Zealand entomologist and ecologist. Specimens collected by Watts are held at Museum of New Zealand Te Papa Tongarewa.
Wētā is the common name for a group of about 100 insect species in the families Anostostomatidae and Rhaphidophoridae endemic to New Zealand. They are giant flightless crickets, and some are among the heaviest insects in the world. Generally nocturnal, most small species are carnivores and scavengers while the larger species are herbivorous. Wētā are preyed on by introduced mammals, and some species are now critically endangered.
Aola Mary Richards was a New Zealand entomologist specialising in the study of New Zealand and Australian cave crickets (Rhaphidophoridae) and Australian ladybird beetles (Coccinellidae). She was the first New Zealand woman to gain a PhD in Biology.
Astracantha is a genus of phaeodaria containing the sole species of plankton A. heteracantha. It was first described by the zoologist Valentin Haecker in 1908. It is the only member of the family Astracanthidae, described by Ernst Haeckel in 1887.
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