In addition to a number of other international organizations and institutions, such as the IUCN Environmental Law Center ( IUCN ELC ), the city currently hosts 18 United Nations institutions.

While most stingrays are relatively widespread and not currently threatened, for several species ( for example Taeniura meyeni, D. colarensis, D. garouaensis, and D. laosensis ), the conservation status is more problematic, leading to them being listed as vulnerable or endangered by IUCN.

The IUCN Red List of Threatened Species has currently assessed the species to be of Least Concern as it is common throughout its range.

They are currently listed by CITES as an endangered species and by IUCN as critically endangered in the wild, with a decreasing population.

This species is currently of Least Concern, and the population is considered stable by both the IUCN and CITES.

As a result of whaling, the sperm whale is currently listed as vulnerable by the IUCN.

Globally, common throughout its range, only becoming scarce at the edge of the distribution The IUCN, Birdlife International and The British Trust for Ornithology ( BTO ) all list Aegithalos caudatus as a ‘ species of least concern ’, currently under little or no threat and is reasonably abundant .< ref > Bird, J. and Butchart, S. B. I.

Dusky dolphins are listed as Data Deficient by the IUCN because ; "... assessment of global population status is not possible with the currently available estimates of abundance and removals.

The barndoor skate, Raja laevis, is currently listed with the IUCN as vulnerable due to being severely overfished.

The Silver Arowana is currently not listed on any CITES appendix nor on the 2004 IUCN Red List.

" However, an IUCN / UNEP report published in 2003, found that only 10. 9 % of the world's land mass is currently a Category 1 Protected Area, that is, either a strict nature reserve ( 5. 5 %) or protected wilderness ( 5. 4 %).

Although currently listed as Least Concern by the IUCN, they are decreasing in number, due primarily to habitat loss.

The Palm Cockatoo is currently evaluated as Least Concern on the IUCN Red List of Threatened Species.

Three subspecies are currently recognized by the IUCN:

The species is currently rated as ' vulnerable ' by the IUCN as its breeding range is restricted to one small island group.

The IUCN states that there is currently a captive breeding program underway.

To date, the IUCN classifies the species as Least Concern and currently the population as Stable.

IUCN Red List of threatened species lists it as endangered, stating " The existence and systematic position of Pseudonovibos spiralis is currently being debated.

The IUCN currently lists the species as " Near Threatened " because of the concern over habitat conversion in many countries in the cat's range.

It is restricted to creeks and rivers ( including the Guadalupe River, hence the name Guadalupe bass ), and was formerly listed as vulnerable, but IUCN currently considers the data insufficient to determine its status.

The tree is currently listed as a least concern species in the IUCN Red List, but this is based largely on its wide distribution and because the adelgid populations have not reached the northern areas of its range.

Marlin have few predators apart from man ; the IUCN currently consider it a threatened species due to overfishing.

It is currently listed as critically endangered on the IUCN Red List, because of the threat from the wider ranged smooth marron, Cherax cainii, which was introduced to its habitat.

* IUCN Red List-Amphibians – assesses the current status of amphibian species worldwide ( incorporates the Global Amphibian Assessment )

The IUCN is a global union of states, governmental agencies, and non-governmental organizations in a partnership that assesses the conservation status of species.

While the World Conservation Union ( IUCN ) mostly only categorizes whole species or subspecies, assessing the global risk of extinction, in some cases it also assesses the risks to stocks and populations, especially to preserve genetic diversity.

The IUCN Red List assesses the Nile crocodile as " Least Concern ( LR / lc )".

NatureServe is an IUCN Red List partner and assesses the conservation status of plant, animal, and fungal species, as well as ecological communities and systems.

The Amphibian Specialist Group of the World Conservation Union ( IUCN ) is spearheading efforts to implement a comprehensive global strategy for amphibian conservation.

The lowland bongo faces an ongoing population decline and the IUCN Antelope Specialist Group considers the western or lowland bongo, T. eurycerus eurycerus, to be Near Threatened on the conservation status scale.

The giraffe species as a whole is assessed as Least Concern from a conservation perspective by the IUCN, as it is still numerous.

As of 2008, the IUCN regards the gray whale as being of " Least Concern " from a conservation perspective.

It has been used in this sense by government organizations as well as conservation groups such as the International Union for Conservation of Nature ( IUCN ) and the California Native Plant Society .< ref name = neutral >

West African chimpanzees: status survey and conservation action plan, International Union for Conservation of Nature and Natural Resources, IUCN / SSC Primate Specialist Group, 219 pages ISBN 2-8317-0733-1, ISBN 978-2-8317-0733-4

Four species are classified by the IUCN as " lower risk, conservation dependent ": Arnoux's and Baird's beaked whales, and the northern and southern bottlenose whales.

The International Union for Conservation of Nature ( IUCN, Union internationale pour la conservation de la nature ( UICN ), in French ) is an international organization dedicated to finding " pragmatic solutions to our most pressing environment and development challenges ".

The organization publishes the IUCN Red List, compiling information from a network of conservation organizations to rate which species are most endangered.

With the pre-eminence of the concept of sustainable development, the IUCN has expanded into many of the nations around the world, making available the services of a large pool of mainly voluntary specialists, providing local level advice and conservation services, and expanding its networks of Committees and regional advisory bodies into increasing numbers of countries.

IUCN Commission on Environmental, Economic, and Social Policy ( CEESP ): CEESP provides expertise and policy advice on economic and social factors for the conservation and sustainable use of biological diversity.

IUCN Commission on Environmental Law ( CEL ): CEL advances environmental law by developing new legal concepts and instruments, as well as by building the capacity of societies to employ environmental law for conservation and sustainable development.

IUCN Species Survival Commission ( SSC ): SSC advises the Union on the technical aspects of species conservation and mobilizes action for those species that are threatened with extinction.

The IUCN is also the governing body responsible for the development the Management Categories into which each Protected Area is divided, depending on its conservation requirements and management aims.

IUCN helps governments understand that nature conservation and the well-being of their people are inextricably linked.

IUCN has one of the world ’ s most comprehensive ranges of authoritative publications, reports, guidelines and databases for conservation and sustainable development.

In the western Palaearctic, there is evidence of population decline, but at a level below the threshold required for global conservation concern ( i. e., a reduction in numbers of more than 30 % in ten years or three generations ) and the IUCN Red List categorises this species as of " Least Concern ".

As it is rarer than previously believed, its conservation status was reassessed from Least Concern to Near Threatened in the 2007 IUCN Red List.

The animal's conservation status is listed as Least Concern on the IUCN Red List.

The genus Angraecum is listed as one of the top conservation priorities by the International Union for Conservation of Nature and Natural Resources ( IUCN ) Orchid Specialist Group.

Because the species has a large range, and because it does not meet the population size and decline criteria of the IUCN Red List, the conservation status is evaluated as being of Least Concern.

While its conservation status is not evaluated by IUCN at present due to non-recognition of the taxon, it is plentiful enough to make it a species of Least Concern if it were ; it is far more plentiful than the Common Teal.

The milk snake is not listed by the IUCN ( a wildlife conservation union ), but in some areas, they may face significant pressure due to pet trade collection.