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Least Concern
A least concern (LC) species is a species which has been categorized by the International Union for Conservation of Nature
International Union for Conservation of Nature
(IUCN) as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species
Species
cannot be assigned the Least Concern category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1).[1] However, around 20% of least concern taxa (3261 of 15636) in the IUCN database use the code "LR/lc", which indicates they have not been re-evaluated since 2000
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Lower Risk
An animal with the conservation status of lower risk is one with populations levels high enough to ensure its survival. Animals with this status do not qualify as being threatened or extinct, however, natural disasters or certain human activities would cause them to change to either of these classifications. This classification is sub-divided into three types: Conservation dependent
Conservation dependent
- where cessation of current conservation measures could result in it being classified at a higher risk level. Near threatened
Near threatened
- close to becoming vulnerable but not meeting the criteria. Least concern
Least concern
- where neither of the two above apply.See also[edit]Biodiversity action plan Endangered speciesReferences[edit]"The IUCN Red List of Threatened Species". Archived from the original on 2009-05-17. Retrieved 2015-05-22. This ecology-related article is a stub
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International Union For Conservation Of Nature
The International Union for Conservation of Nature
International Union for Conservation of Nature
(IUCN; officially International Union for Conservation of Nature
International Union for Conservation of Nature
and Natural Resources[2]) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. Unlike many other international environmental organisations, IUCN does not itself aim to mobilize the public in support of nature conservation
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Lists Of Organisms By Population
This is a collection of lists of organisms by their population. While of the most numbers are estimates, they have been made by the experts in their fields. Species
Species
population is a science falling under the purview of population ecology and biogeography
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International Union For The Conservation Of Nature
The International Union for Conservation of Nature
International Union for Conservation of Nature
(IUCN; officially International Union for Conservation of Nature
International Union for Conservation of Nature
and Natural Resources[2]) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. Unlike many other international environmental organisations, IUCN does not itself aim to mobilize the public in support of nature conservation
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Taxa
In biology, a taxon (plural taxa; back-formation from taxonomy) 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 not uncommon, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion
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Taxon
In biology, a taxon (plural taxa; back-formation from taxonomy) 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 not uncommon, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion
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IUCN Red List Conservation Dependent Species
As of July 2016, the International Union for Conservation of Nature (IUCN) lists 238 conservation dependent species.[1] 0.29% of all evaluated species are listed as conservation dependent. The IUCN also lists seven subspecies and five varieties as conservation dependent. Of the animal subpopulations evaluated by the IUCN, one species subpopulation and one subspecies subpopulation has been assessed as conservation dependent. The conservation dependent category is part of the IUCN 1994 Categories & Criteria (version 2.3), which is no longer used in evaluation of taxa, but persists in the IUCN Red List
IUCN Red List
for taxa evaluated prior to 2001, when version 3.1 was first used. Using the 2001 (v3.1) system these taxa are classed as near threatened, but those that have not been re-evaluated remain with the "conservation dependent" category. This is a complete list of conservation dependent species and subspecies evaluated by the IUCN
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Undescribed Species
In taxonomy, an undescribed taxon is a taxon (for example, a species) that has been discovered, but not yet formally described and named. The various Nomenclature Codes specify the requirements for a new taxon to be validly described and named. Until such a description has been published, the taxon has no formal or official name, although a temporary, informal name is often used. A published scientific name may not fulfil the requirements of the Codes for various reasons. For example, if the taxon was not adequately described, its name is called a nomen nudum. It is possible for a taxon to be "undescribed" for an extensive period of time, even if unofficial descriptions are published. An undescribed species may be referred to with the genus name, followed by "sp"., but this abbreviation is also used to label specimens or images that are too incomplete to be identified at the species level. In some cases, there is more than one undescribed species in a genus
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List Of Endangered Arthropods
As of July 2016, the International Union for Conservation of Nature (IUCN) lists 616 endangered arthropod species.[1] 6.5% of all evaluated arthropod species are listed as endangered. The IUCN also lists 27 arthropod subspecies as endangered. No subpopulations of arthropods have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of exintction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered arthropods are listed separately. There are 1010 arthropod species which are endangered or critically endangered. Additionally 2875 arthropod species (30% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status
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Philautus
See text Philautus
Philautus
is a genus of shrub frogs in the family Rhacophoridae
Rhacophoridae
from Asia. Some species in this genus are now considered extinct by IUCN, while others are widespread and abundant (such as the recently described P. abundus, which was specifically named for this fact)
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Lower Risk
An animal with the conservation status of lower risk is one with populations levels high enough to ensure its survival. Animals with this status do not qualify as being threatened or extinct, however, natural disasters or certain human activities would cause them to change to either of these classifications. This classification is sub-divided into three types: Conservation dependent
Conservation dependent
- where cessation of current conservation measures could result in it being classified at a higher risk level. Near threatened
Near threatened
- close to becoming vulnerable but not meeting the criteria. Least concern
Least concern
- where neither of the two above apply.See also[edit]Biodiversity action plan Endangered speciesReferences[edit]"The IUCN Red List of Threatened Species". Archived from the original on 2009-05-17. Retrieved 2015-05-22. This ecology-related article is a stub
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Australasia
Australasia, a region of Oceania, comprises Australia, New Zealand, neighbouring islands in the Pacific Ocean
Pacific Ocean
and, sometimes, the island of New Guinea
New Guinea
(which is usually considered to be part of Melanesia). Charles de Brosses
Charles de Brosses
coined the term (as French Australasie) in Histoire des navigations aux terres australes[1] (1756)
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Southern Africa
Southern Africa
Africa
is the southernmost region of the African continent, variably defined by geography or geopolitics, and including several countries. The term southern Africa
Africa
or Southern Africa, generally includes Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia, and Zimbabwe
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Spiny Dogfish
The spiny dogfish, spurdog, mud shark, or piked dogfish (Squalus acanthias) is one of the best known species of the Squalidae
Squalidae
(dogfish) family of sharks, which is part of the Squaliformes
Squaliformes
order. While these common names may apply to several species, Squalus acanthias is distinguished by having two spines (one anterior to each dorsal fin) and lacks an anal fin. It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters
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Fungi
Dikarya
Dikarya
(inc. Deuteromycota)AscomycotaPezizomycotina Saccharomycotina TaphrinomycotinaBasidiomycotaAgaricomycotina Pucciniomycotina UstilaginomycotinaSubphyla incertae sedisEntomophthoromycotina Kickxellomycotina Mucoromycotina ZoopagomycotinaA fungus (plural: fungi[3] or funguses[4]) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Similar to animals, fungi are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesise
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