Orinoco crocodile [SEP] IUCN conservation status
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Orinoco crocodile


Orinoco crocodiles noted the aggressive behavior of adults while nesting and noted that the normally relatively docile crocodilians could not be approached while they were actively brooding. Without persecution, it is possible that Orinoco crocodiles may reach a lifespan of 70–80 years. The Orinoco crocodile is highly endangered due to excessive hunting for its hide. During the 1940s to the 1960s, thousands of these animals were slaughtered in the Orinoco River and the Llanos wetlands, and the species came very close to extinction. The Orinoco crocodile was given protected status in the 1970s
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Tony Pooley


changing the status of Nile crocodiles from 'vermin' to 'protected', and was a founder member of the IUCN Crocodile Specialist Group. He travelled to Italy, Australia, America, Papua New Guinea, Zambia and Zimbabwe advising on crocodile conservation and farming. Several films were made about his work, including "The Ndumu Story", and the BBC's award-winning "Gently Smiling Jaws", narrated by Sir David Attenborough. Pooley set up two crocodile research facilities, one at Ndumo Game Reserve, and the
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Orinoco crocodile


skin. These crocodiles have dark-brown markings, which present as more pronounced bands in younger specimens and as scattered markings on mature ones. The Orinoco crocodile ranks among the largest living reptiles, as well as the largest predator in the Americas. It is arguably the largest crocodilian in the Americas, while American crocodiles and black caimans may approach similar dimensions, on average the Orinoco crocodile may be (or had been, when in healthy numbers) slightly longer. Given its possible maximum sizes, the Orinoco crocodile may rank as
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Orinoco crocodile


the third largest extant true crocodile after the saltwater crocodile and Nile crocodile (which is closely related to the Orinoco despite its substantially different range) and rank 4th amongst all extant crocodilians behind additionally the gharial, though there is little to suggest that Orinoco specimens in modern times can rival these largest species. Sexual maturity for Orinoco crocodiles is obtained for females at around while that of males seems to be obtained around length, with most adult crocodiles of the species exceeding . Average length of wild adult females from 1985 to 1992 was found
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Orinoco crocodile


Trinidad, but this has not been confirmed and witnesses may have mistaken an American crocodile for the rarer species. This crocodile was once thought to have inhabited a wide range of riparian habitats, from tropical forests to the streams of the Andes foothills. Today, this species is restricted to the Llanos savannah and associated seasonal freshwater rivers. Little study has gone into the dietary biology of Orinoco crocodiles but from eye-witness accounts and partial studies from captivity and crocodile farms, the majority of the Orinoco crocodile's diet appears to consists
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Crocodile farming in the Philippines


crocodile ("Crocodylus mindorensis") is unique to the Philippines that tends to prefer a freshwater habitat. The latter – is considered "critically endangered" by the International Union for Conservation of Nature (IUCN) – is found in Mindoro, Busuanga, Palawan, Masbate, Negros , Samar, and in the islands of Sulu. As both are threatened because of loss of their habitats to humans, conservation efforts apply to them both. Crocodile farming under CITES is geared towards the rescue and sustainable exploitation. The first crocodile breeding
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Orinoco crocodile


The Orinoco crocodile ("Crocodylus intermedius") is a critically endangered crocodile. Its population is very small and it can only be found in freshwater environments in Colombia and Venezuela, in particular the Orinoco river and its tributaries. Extensively hunted for their skins in the 19th and 20th centuries, this species is one of the most critically endangered species of crocodiles. It is a very large species of crocodilian and predator in the Americas. Males have been reported up to in the past, but such sizes do not exist today,
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Orinoco crocodile


will take the opportunity to prey on a variety of reptiles, birds, and mammals, including caimans on occasion. The prey base is mostly made up of large predatory fish, challenging the general view by the locals complaining about the crocodile hunting local fish to very low numbers. Despite its large size, the Orinoco crocodile rarely poses a threat to humans, despite several reports. Reproduction takes place in the dry season when the water level is lower. Orinoco crocodiles are hole nesters, digging holes in the sand to lay their
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Madras Crocodile Bank Trust


social interactions, and breeding biology at close range. Select enclosures are wired to record all the basic environmental parameters to facilitate studies on the biology of the reptiles at the bank. The bank has served as a regional source of status information for the World Conservation Monitoring Centre and has hosted numerous international meetings of the IUCN Specialist Groups dealing with reptiles. Since 1978, the centre has also hosted numerous local and international specialists. The CrocBank was awarded the Ford Conservation and Environmental Grant for the year 2001 for project "Integrated Environment Education
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New Guinea crocodile


fish and a range of other small animals. A female crocodile lays a clutch of eggs in a nest composed of vegetation and she lies up nearby to guard the nest. There is some degree of parental care for newly hatched juveniles. This crocodile was over-hunted for its valuable skin in the mid 20th century, but conservation measures have since been put in place, it is reared in ranches and the International Union for Conservation of Nature (IUCN) lists it as being of "Least Concern". The New Guinea
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Committee on the Status of Endangered Wildlife in Canada


in Canada) and 15 wildlife species that are Extinct (X). The other category is not at risk (NAR). COSEWIC provides online updated status reports on designated species. COSEWIC bases its quantitative criteria for species' status assessment on the revised IUCN Red List, the world's most comprehensive inventory of the global conservation status of biological species. COSEWIC provides International Union for the Conservation of Nature (IUCN), the world's main authority on the conservation status of species, with a Regional Red List. IUCN.
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Orinoco crocodile


being a more widely accepted maximum size. A large male today may attain in length and can weigh , while females are substantially smaller with the largest likely to weigh around . Sexual dimorphism is not as profound as in some other species. The coloration is light even in adults. The biology of the Orinoco crocodile is poorly documented in the wild, mostly due its small population. It is thought to have a more piscivorous diet with an opportunistic nature resulting in a generalist predatory behavior. The Orinoco crocodile is an apex predator and
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Crocodile shark


by their mother. Due to its small size, the crocodile shark poses little danger to humans and is of little commercial importance. However, substantial numbers are caught as bycatch, leading it to be assessed as Near Threatened by the International Union for Conservation of Nature (IUCN). This species was responsible for damaging deep sea fiberoptic cables when the technology was first deployed in 1985. The English common name "crocodile shark" is derived from its Japanese name "mizuwani" (水鰐, literally "water crocodile"),
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Cojedes River


intermedius") population in Venezuela and therefore of the entire world. In the near future, sections of this river will be declared as wildlife reserve to protect the nesting sites of this species, classified as critically endangered. As part of the Orinoco crocodile Conservation Program in Venezuela, between the years 2005 and 2007, have been reintroduced in the Cojedes river, 361 young crocodiles breed in captivity during at least one year, in order to increase their survival probabilities. As in many other Venezuelan localities, the release of captive bred
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Orinoco crocodile


in 1800, and allegedly measured at , although the source is considered reliable, unfortunately, no voucher specimen is known from this. Because of extensive hunting for their skins in the 20th century, such giants do not exist today, and modern Orinoco crocodiles have not been reported to exceed in length. Merchán listed the maximum total length attainable for a male as and the maximum length of a female as . This species is restricted to the Orinoco river basin in Colombia and Venezuela. They have been occasionally reported on the island of
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Orinoco crocodile


, but has yet to recover. Today, it is protected both in Colombia and Venezuela, and also included on Appendix I by CITES. In addition to hunting for its hide, more recent threats include the collection of juveniles for sale in the live animal trade, pollution, and the proposal of a dam in the upper Orinoco River region. Another problem is the increased population of spectacled caimans, a smaller crocodilian that can outcompete the Orinoco crocodile for fish due to its much larger population and much more accelerated breeding rates.
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Romulus Whitaker


80 million (USD 1 million to 1.7 million) each year for five years. This project has long been advocated by Rom Whitaker. Rom is Honorary Consultant, International Union for the Conservation of Nature and Natural Resources/Species Survival Commission (IUCN/SSC), Vice Chairman (Western Asia), IUCN/SSC Crocodile Specialist Group, Member, IUCN/SSC Indian Subcontinent Reptile and Amphibian Group and Member, IUCN/SSC Sea Turtle Specialist Group.200 billion dollar dry venome per month production of dry venome by reptile park chennai
18898196
List of threatened reptiles and amphibians of the United States


According to the International Union for Conservation of Nature (IUCN), 93 reptile and amphibian species in the United States are threatened with extinction. The IUCN has classified each of these species into one of three conservation statuses: vulnerable , endangered , and critically endangered . Family Crocodylidae (crocodiles) Family Chelydridae (snapping turtles) Family Kinosternidae (mud turtles and musk turtles) Family Emydidae (pond turtles) Family Testudinidae (tortoises) Family Cheloniidae (sea turtles) Family Dermochelyidae (leatherback sea turtle) Family Trionychidae (softshells) Family
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Crocodile shark


it is probably declining from bycatch mortality. Coupled with its low reproductive rate, this has led the International Union for Conservation of Nature (IUCN) to assessed it as Near Threatened. In June 2018 the New Zealand Department of Conservation classified the crocodile shark as "Data Deficient" with the qualifier "Secure Overseas" under the New Zealand Threat Classification System. After AT&T installed the first deep sea fiberoptic cable between Gran Canaria and Tenerife in the Canary Islands in September 1985, the system suffered a series of shorts that necessitated costly
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Orinoco crocodile


a threat, but this species has a less aggressive temperament compared to other large crocodiles. When water recedes in the dry season, Orinoco crocodiles retreat to burrows they excavate into the riverbanks. The adult pair mates during the drier period of the year. Adult males attract the females by roaring, the females often outnumbered the males two to one and so appear to select the males with the deepest roars. In a reintroduced population, it was found that only 6 of 14 potential adult males parented over 90% of eggs laid
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Orinoco crocodile


to the water, which is considerably higher at this point. Young Orinoco crocodiles are often at risk from predation by American black vultures, tegu lizards, anacondas, caimans, coatis, jaguars, and other carnivores, though these species (excepting perhaps the jaguar) are sometimes too caught and killed by the defending mother crocodile. Adults have no predators except for humans and occasionally jaguars. Females have defended pods of juveniles for over three years, though closer to one year to independence is generally most common. A study of captive
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International Union for Conservation of Nature


Unlike other environmental organisations, IUCN does not itself aim to directly mobilize the general public. Education has been part of IUCN's work program since the early days but the focus is on stakeholder involvement and strategic communication rather than mass-campaigns. IUCN runs field projects for habitat and species conservation around the world. It produces the IUCN Red List of Threatened Species and the IUCN Red List of Ecosystems which in a similar way measures risks to ecosystems. The IUCN Red List of Ecosystems is a global standard to assess the conservation status
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Orinoco crocodile


eggs. The females guard the nests and young up to several years. The Orinoco crocodile can be recognised by its relatively long snout, which is narrower than that of the somewhat similar-looking American crocodile. This species generally has a pale tan hide, though at least three coloration variations are known, with some almost completely yellowish and some a dark brownish-gray. The skin can change colour over long periods of time; this phenomenon has been recorded in other species that can gradually change the amount of melanin in their
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Orinoco crocodile


animals, and even occasionally other large predators if the opportunity arises. Similar to many of the larger crocodile species, the Orinoco crocodile has also been observed catching and eating smaller species of crocodilians, such as adult common caimans and sometimes cannibalizing smaller individuals of its own kind. Attacks on humans have been reported, but this is highly unlikely to be a common behavior today, given the very small population of the species and its relative isolation from large human settlements. Historically attacks were not unusual and on his trip to the region
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Orinoco


Orinoco and Amazon. The boto and the giant otter inhabit the Orinoco River system. The Orinoco crocodile is one of the rarest reptiles in the world. Its range in the wild is restricted to the middle and lower Orinoco River Basin. More than 1000 fish species have been recorded in the river basin and about 15% are endemic. Among the fish in the river are species found in brackish or salt water in the Orinoco estuary, but also many restricted to fresh water. By far the largest orders are Characiformes and Siluriformes
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Conservation biology


they sustain. Aldo Leopold was a classical thinker and writer on such conservation ethics whose philosophy, ethics and writings are still valued and revisited by modern conservation biologists. The International Union for the Conservation of Nature (IUCN) has organized a global assortment of scientists and research stations across the planet to monitor the changing state of nature in an effort to tackle the extinction crisis. The IUCN provides annual updates on the status of species conservation through its Red List. The IUCN Red List serves as an international conservation tool to identify those
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Newport Aquarium


Mike (left in 2018). Newport Aquarium is an accredited member of the Association of Zoos and Aquariums, a leader in global wildlife conservation. The aquarium has many outreach programs, including the mobile shark cart and the WAVE Foundation, that seeks to educate the public about our oceans and promote STEM. Throughout the year, they have seasonal events to engage the public and promote ocean conservation. The Newport Aquarium is part of Herschend Family Entertainment, a for-profit company. Gator Alley includes varying sized specimens of Orinoco crocodile
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Jesús A. Rivas


Jesús A. Rivas (born in Caracas, Venezuela) is a Venezuelan herpetologist, tropical ecologist, and television correspondent. His research interests include natural history, ethology, and conservation. He has been working for several years studying the behavioral ecology and conservation of large tropical reptiles of the llanos of Venezuela. Most of his experience has been with green iguanas and green anacondas, but he has also worked with other reptiles such as the Orinoco crocodile, spectacled caiman, and green sea turtles. His current research is with anacondas. It
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Conservation status


use. The IUCN Red List of Threatened Species is the best known worldwide conservation status listing and ranking system. Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmentation. Also included are species that have gone extinct since 500 CE. When discussing the IUCN Red List, the official term "threatened" is a grouping of three categories: critically endangered, endangered, and vulnerable. The Convention on
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Nile crocodile


Nile crocodile and today's Neotropical crocodiles. The Nile crocodile apparently is more closely related to the crocodiles of the Americas, namely the American ("Crocodylus acutus"), Cuban ("Crocodylus rhombifer"), Morelet's ("Crocodylus moreletii"), and Orinoco crocodiles ("Crocodylus intermedius"), than to the West African crocodile or other extant African crocodilians. Adult Nile crocodiles have a dark bronze colouration above, with faded blackish spots and stripes variably appearing across the back and a dingy off-yellow on
9454922
Nepenthes bicalcarata


level. The conservation status of "N. bicalcarata" is listed as Vulnerable on the 2006 IUCN Red List of Threatened Species based on an assessment carried out in 2000. In 1997, Charles Clarke informally classified the species as Near Threatened based on the IUCN criteria. This agrees with the conservation status assigned to "N. bicalcarata" by the World Conservation Monitoring Centre. The two thorns that give "N. bicalcarata" its name are unique to this species and bear some of the largest nectaries in the plant kingdom. The purpose of
21530642
Atalaya (plant)


underground woody rootstocks. In South Africa three species grow naturally. The scarcity of "A. natalensis" trees and their restricted range has received the global conservation status (IUCN) of "vulnerable D2". "A. capensis" has a global conservation status (IUCN) listing also, of "Lower Risk / conservation dependent" . In Papua New Guinea "A. papuana" grows naturally in coast monsoon dune scrub (coastal rainforests on dune soils that become seasonally dry, with deciduous trees), tropical savanna forests and in regenerating
21745346
World Commission on Protected Areas


The World Commission on Protected Areas (WCPA) is one of six commissions of the International Union for the Conservation of Nature (IUCN). In 1948, the IUCN established a Committee on National Parks. Two decades later the IUCN had been asked by the international community to take responsibility for preparing a world list of national parks in keeping with its role as a network to share the world’s knowledge on nature conservation, and in 1960, the IUCN raised the status of the Committee to that of a permanent Commission, with
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IUCN Red List of Ecosystems


The IUCN Red List of Ecosystems (RLE) is a global framework for monitoring and documenting the status of ecosystems. It was developed by the International Union for Conservation of Nature as part of the growing toolkit for biodiversity risk assessment. Its main objective is to support conservation, resource use, and management decisions by evaluating all the world's ecosystems by 2025. The Red List of Ecosystem was developed by the International Union for the Conservation of Nature (IUCN), the world's leading authority on the subject and the same entity
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Camas pocket gopher


lupines. Citing concerns of urbanization, habitat loss and active attempts at eradication, NatureServe assesses the camas pocket gophers' conservation status as vulnerable. The conservation status of the camas pocket gopher is classified as "least concern" by the IUCN (International Union for Conservation of Nature) Species Programme, with a stable population trend. The IUCN notes that the gopher is common in its range; studies indicate that populations can recover rapidly after traps are removed from an area, and the species may adapt well to environmental changes. The
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Philippine crocodile


nutritious for the fish and contain critically important chemicals. "Crocodylus mindorensis" is considered to be the most severely threatened crocodile species in the world, listed as critically endangered by the IUCN. A population estimate of 100 non-hatchling individuals underlines the critical status of the species. Although this species was once found over the whole of the Philippines, it is now critically endangered. In addition, very little is known about the natural history or ecology of the species, or its relationship with "Crocodylus porosus", whose range
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IUCN Red List


The IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), 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
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International Union for Conservation of Nature


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. It tries to influence the actions of governments, business and other stakeholders by providing information and advice, and through building partnerships. The organization is best known to the wider public for compiling and publishing the IUCN Red List of Threatened Species, which assesses the conservation status of species worldwide. IUCN has a membership of over 1400
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Cojedes River


The Cojedes River (Spanish "Rio Cojedes") is a tributary of the Orinoco River in central Venezuela. The Cojedes originates in Lara state, and flows southeast through a gap between the Cordillera de Mérida and the Cordillera de la Costa and across the Llanos grasslands of the Orinoco Basin to empty into the Apure River, which flows east to join the Orinoco. The river drains portions of the states of Lara, Yaracuy, Portuguesa, Cojedes, Barinas, and Guárico. This river maintains the main Orinoco crocodile ("Crocodylus
4723216
American crocodile


their own independent lives. Most of them will not survive, being preyed upon by several types of raptorial birds and larger fishes (e.g., barred catfish, Atlantic tarpons, common snook and lemon sharks, boa constrictors, black spiny-tailed iguanas and spectacled caimans). Those that do survive grow rapidly, feeding on insects, fish and frogs. Additionally, some young American crocodiles feed on each other. The International Union for Conservation of Nature (IUCN) lists the species as vulnerable, but it has not been assessed
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Madras Crocodile Bank Trust


zoo of the Central Zoo Authority of India for the breeding programmes for endangered species, including rock python, king cobra and Ganges softshell turtle, as per the National Zoo Policy adopted by the Government of India in 1988. The National Zoo Policy (1998) states several objectives that zoos should pursue including education, publications, and breeding rare and endangered species. In 2010, the bank also bred the rare Tomistoma crocodile, which is in the Red List of the International Union for the Conservation of Nature (IUCN). In
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Orinoco crocodile


in 1800, natives told Alexander von Humboldt that two or three adults were killed per year by Orinoco crocodiles. A small number of better documented fatal attacks were reported in the 1900s–1930s when the species was still relatively common. The only well-documented recent attack, on a fisherman in 2009, was serious but not fatal. A second survivor was reported in 2011 to live in La Palmita at the Cojedes River, but any details of this attack (including when exactly it happened) are lacking. Its large size may pose
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Orinoco crocodile


number of hatchlings have been released both into private ranchlands (especially in the Llanos where nature-oriented tourism is important for the local economy) and in national parks in Venezuela. While six Venezuelan captive-breeding programs continue today, many are plagued by lack of funds or staff, as well as conflicts between private and state-owned facilities. The Orinoco crocodile became part of "Proyecto Vida Silvestre", a program launched in 2014 to protect 10 wildlife species of Colombia's Llanos. Thanks to that program, between May
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International Union for Conservation of Nature


governmental and non-governmental organizations. Some 16,000 scientists and experts participate in the work of IUCN commissions on a voluntary basis. It employs approximately 1000 full-time staff in more than 50 countries. Its headquarters are in Gland, Switzerland. IUCN has observer and consultative status at the United Nations, and plays a role in the implementation of several international conventions on nature conservation and biodiversity. It was involved in establishing the World Wide Fund for Nature and the World Conservation Monitoring Centre. In the past, IUCN has been criticized
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International Union for Conservation of Nature


Council of Europe. In 1961, at the request of United Nations Economic and Social Council (ECOSOC), the United Nations Economic and Social Council, IUCN published the first global list of national parks and protected areas which it has updated ever since. IUCN's best known publication, the Red Data Book on the conservation status of species, was first published in 1964. IUCN began to play a part in the development of international treaties and conventions, starting with the African Convention on the Conservation of Nature and Natural Resources.
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Arignar Anna Zoological Park


all other six major varieties, namely, Indo-Pacific or the salt water crocodile, swamp crocodile, Nile crocodile of Africa, Orinoco crocodile, Morelet's crocodile and American crocodile. The eight enclaves for crocodiles comprise about 220 individuals, including 125 adult specimens belonging to the six varieties. This includes two pairs of adult fresh water crocodiles. Many of the species also breed here. The primate house includes some unique endangered primate species like the lion-tailed macaque, Nilgiri langur, capped langur and chimpanzee. The park is
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Nepenthes spathulata


. It is somewhat reminiscent of the highland heath forests around Bareo in Sarawak, Borneo. Due to the patchy distribution of "N. spathulata", its conservation status is listed as Vulnerable on the 2006 IUCN Red List of Threatened Species. However, Charles Clarke suggests a revised status of Conservation Dependent based on the IUCN criteria. The closest relative of "N. spathulata" appears to be "N. singalana". It differs from this species in having a peristome that is contracted towards the front and very wide at the sides.
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Regional Red List


A Regional Red List (RRL) is a report of the threatened status of species within a certain country or region. It is based on the IUCN Red List of Threatened Species, an inventory of the conservation status of species on a global scale. Regional Red Lists assess the risk of extinction to species within a political management unit and therefore may feed directly into national and regional planning. This project is coordinated by the Zoological Society of London (ZSL), the World Conservation Union (IUCN) and partners in national governments
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Orinoco wetlands


Threatened species include the giant otter ("Pteronura brasiliensis"), Orinoco crocodile ("Crocodylus intermedius"), Amazon river dolphin ("Inia geoffrensis"), jaguar ("Panthera onca") , bush dog ("Speothos venaticus"), Orinoco goose ("Neochen jubata"), and harpy eagle ("Harpia harpyja"). Endangered birds also include the yellow-bellied seedeater ("Sporophila nigricollis"). The World Wildlife Fund classes the ecoregion as "Relatively Stable/Intact". The
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Regional Red List


, universities and organizations throughout the world. Regional Red Lists may assist countries or regions in: The IUCN Categories and Criteria were initially designed to assess the conservation status of species globally, however there was a demand for guidelines to apply the system at the regional level. In 2003, IUCN developed a set of transparent, quantitative criteria to assess the conservation status of species at the regional and national level. This approach is now being applied in many countries throughout the world. Recently, Regional Red Lists have been completed for Mongolian
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Endangered species


An endangered species is a species which has been categorized as very likely to become extinct in the near future. Endangered (EN), as categorized by the International Union for Conservation of Nature (IUCN) Red List, is the second most severe conservation status for wild populations in the IUCN's schema after  (CR). In 2012, the IUCN Red List featured 3,079 animal and 2,655 plant species as endangered (EN) worldwide. The figures for 1998 were, respectively, 1,102 and 1,197. Many nations have laws that
3812127
List of critically endangered mammals


a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of "data deficient" indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed." This is a complete list of critically endangered mammalian species and subspecies evaluated by the IUCN.
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Orinoco Delta swamp forests


onca"), bush dog ("Speothos venaticus"), giant otter ("Pteronura brasiliensis"), Orinoco goose ("Neochen jubata") and harpy eagle ("Harpia harpyja"). Endangered species include the Orinoco crocodile, giant otter and yellow-bellied seedeater ("Sporophila nigricollis"). The World Wildlife Fund classes the ecoregion as "Relatively Stable/Intact". A flood control program in the 1960s dammed the Caño Manamo, which reduced water levels in the upper delta. This part of
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List of critically endangered arthropods


As of July 2016, the International Union for Conservation of Nature (IUCN) lists 394 critically endangered arthropod species, including 86 which are tagged as "possibly extinct". 4.1% of all evaluated arthropod species are listed as critically endangered. The IUCN also lists three arthropod subspecies as critically endangered. No subpopulations of arthropods have been evaluated by the IUCN. 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.
18760593
List of critically endangered molluscs


As of September 2016, the International Union for Conservation of Nature (IUCN) lists 581 critically endangered mollusc species, including 117 which are tagged as "possibly extinct". 8.0% of all evaluated mollusc species are listed as critically endangered. The IUCN also lists 11 mollusc subspecies as critically endangered. No subpopulations of molluscs have been evaluated by the IUCN. Additionally 1988 mollusc species (27% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status.
2441326
List of critically endangered insects


As of July 2016, the International Union for Conservation of Nature (IUCN) lists 195 critically endangered insect species, including 46 which are tagged as "possibly extinct". 3.2% of all evaluated insect species are listed as critically endangered. The IUCN also lists two insect subspecies as critically endangered. No subpopulations of insects have been evaluated by the IUCN. Additionally 1702 insect species (28% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status.
2441517
List of critically endangered invertebrates


As of July 2016, the International Union for Conservation of Nature (IUCN) lists 987 critically endangered invertebrate species, including 206 which are tagged as "possibly extinct". 5.5% of all evaluated invertebrate species are listed as critically endangered. The IUCN also lists 14 invertebrate subspecies as critically endangered. No subpopulations of invertebrates have been evaluated by the IUCN. Additionally 5278 invertebrate species (29% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status.
2770395
International Union for Conservation of Nature


1974) and its formal standing and influence increased. A grant from the Ford Foundation in 1969 enabled it to boost its secretariat and expand operations. During the 1960s, IUCN lobbied the UN General Assembly to create a new status for NGOs. Resolution 1296, adopted in 1968, granted 'consultative' status to NGOs. IUCN itself was eventually accredited with six UN organizations. IUCN was one of the few environmental organisations formally involved in the preparations of the United Nations Conference on the Human Environment (Stockholm, 1972). The
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Livingstone National Park


species conservation Act 1995). Along with international recognition under the International Union for Conservation of Nature (IUCN) Red List of Threatened Species (IUCN 2004). Identifying the habitat of, and monitoring its condition, is an important conservation action in the National recovery plan for the Swift Parrot. The protection status of Livingstone National Park means management is consistent with and intends to deliver the actions in recovery plans for conserving the Swift Parrots overwintering ground, when it leaves breeding grounds in Tasmania and disperses widely over the mainland, from
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American crocodile


membranes for protection along with lacrimal glands, which produce tears. The nostrils, eyes, and ears are situated on the top of its head, so the rest of the body can be concealed underwater for surprise attacks. Camouflage also helps it prey on food. The snout is longer and narrower than that of the American alligator, but broader on average than that of the Orinoco crocodile. American crocodiles are also paler and more grayish than the relatively dark-hued American alligator. This crocodile species normally crawls on its belly,
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Crocodile attack


only a few documented fatalities), the Morelet's crocodile (typically considered a relatively non-threatening species, but there have been several fatal attacks), Orinoco crocodile (fatalities recorded in the 1930s and earlier when the species was more common, but today it is very rare), Cuban crocodile (generally considered aggressive, but only one confirmed fatality), black caiman (fatal attacks confirmed in Brazil, but possibly underreported because of its remote range), American alligator (an estimated 6% of attacks are fatal)
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Crocodile Zoo, Falster


The Crocodile Zoo () is a zoo on the Danish island of Falster. It is located just to the southwest of Gundslevmagle, northeast of Eskilstrup, towards the northern centre of the island. Established in 2000, the zoo has the world's largest collection of crocodilians (crocodiles and relatives) with all 23 existing species (same as St. Augustine Alligator Farm Zoological Park). This includes the only Orinoco crocodiles outside the Americas, which are part of a breeding program involving US zoos and the Venezuelan government. Their male Nile
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Pethia cumingii


and Flora of Sri Lanka, IUCN Sri Lanka. IUCN, (2000); The 1999 list of threatened fauna and flora of Sri Lanka, IUCN Sri Lanka. IUCN, (2000); The Fauna of Sri Lanka Status of Taxonomy, Research and Conservation, IUCN Sri Lanka. Perera, N., (2002); Preliminary Survey of Upper Attanagalu River basin in South West Ichthyological Zone of Sri Lanka, SRI LANKA NATURALIST, JOURNAL OF ECOLOGY AND NATURE, Young Zoologist’s Association of Sri Lanka. Pethiyagoda, R.
14745984
Frederick Yeh


sea turtle conservation efforts in Hawaii. According to the global authority on nature conservation, International Union for the Conservation of Nature (IUCN), the sea turtles of the Hawaiian Islands were also once under the threat of near extinction, but are now thriving and their conservation status reclassified as "Least Concern" according to the IUCN Red List. Thus, Yeh established Sea Turtles 911 under Hawaiian jurisdiction, and changed the course of his life by moving to China to save the sea turtles he had hopelessly witnessed being sold, earning
8188720
Rodrigues flying fox


a few hundred in total in the wild, and the bat is classified as endangered by the IUCN. The Durrell Wildlife Conservation Trust has undertaken a successful captive breeding program, and there are now colonies in several zoos. Due to its imperiled status, it is identified by the Alliance for Zero Extinction as a species in danger of imminent extinction. In 2013, Bat Conservation International listed this species as one of the 35 species of its worldwide priority list of conservation. In 2017, the IUCN determined that this species now has
11950036
Whale conservation


the North Atlantic Ocean around Greenland, Iceland, and Norway. There is no information about fin whales in areas outside of the Northern Atlantic, where they still hold the status of being endangered. A complete list of whale conservation statuses as listed by the IUCN is given below. Note that, in the case of the blue and gray whales, the IUCN distinguishes the statuses of various populations. These populations, while not regarded as separate species, are considered sufficiently important in terms of conservation. *Atlantic population of gray whale
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Nile crocodile


. In the past, explorers have claimed to have seen massive crocodiles in Africa and Madagascar they estimated from , claims sometimes supported by native hunters and fisherman, however no measurements occurred and these are certain to be vast exaggerations. Currently, via unequivocal, modern scientific verification, the saltwater crocodile is the only crocodilian verified to exceed . Prior to overhunting in the 20th century, other crocodilians may have also approached or exceeded , such sizes being somewhat reliably reported in gharials and Orinoco crocodiles in very old reports before both species were decimated
9455067
Plains rat


' by the International Union for the Conservation of Nature (IUCN), the IUCN conservation status for the species is 'vulnerable'. The name "Pseudomys" comes from the combined form of the Greek word "pseudes" (meaning "false") and the Latin word "mys" (meaning "mouse"), presumably because of the plains rat's puzzling similarities and differences to "true mice" in the genus "mus". The name "australis" comes from the Latin word "australis" (
21672382
Nile crocodile


The status of Nile crocodiles was variable based on the regional prosperity and extent of conserved wetlands by the 1970s. However, as is the case for many large animal species whether they are protected or not, persecution and poaching have continued apace and between the 1950s and 1980s, an estimated 3 million Nile crocodiles were slaughtered by humans for the leather trade. In Lake Sibaya, South Africa, it was determined that in the 21st century, persecution continues as the direct cause for the inability of Nile crocodiles to recover after the leather
9455047
Stenogomphurus consanguis


Stenogomphurus consanguis, the Cherokee clubtail, is a species of clubtail dragonfly in the family Gomphidae. It is endemic to the southeastern United States, found in small rivers and streams. The IUCN conservation status of "Stenogomphurus consanguis" is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2018. The species had a Red List assessment of "rare" from 1986 to 1994, "vulnerable" in 1996, and "endangered" in 2007. There are
16664674
Phanogomphus sandrius


Phanogomphus sandrius, the Tennessee clubtail, is a species of clubtail dragonflies in the family Gomphidae. It is found in the United States, in nine locations of central Tennessee. The IUCN conservation status of "Phanogomphus sandrius" is "VU", vulnerable. The species faces a high risk of endangerment in the medium term, with a decreasing population. The IUCN status was reviewed in 2018. "Phanogomphus sandrius" was assessed as "endangered" in 1996 and "vulnerable" in 2007. "Phanogomphus sandrius" was recently
16664709
Gomphurus septima


Gomphurus septima, or Septima's clubtail, is a species of clubtail dragonflies in the family Gomphidae. The IUCN conservation status of "Gomphurus septima" is "LC", least concern, with no immediate threat to the species' survival. The population is stable. The IUCN status was reviewed in 2018. "Gomphurus septima" was recently considered a member of the genus "Gomphus", but in 2017 it became a member of the genus "Gomphurus" when "Gomphurus" was elevated from subgenus to genus rank.
16664710
Regional Red List


this regional network there will be opportunities to learn from each other’s experiences in applying the IUCN Categories and Criteria and in using this information for conservation planning and priority setting. Two public bodies in Britain, Natural England and the Joint Nature Conservation Committee (JNCC), have produced British Red Data Books and other reviews of different plants and animals assigning their conservation status according to IUCN Red Data Book criteria. In 2016 the JNCC produced a spreadsheet which incorporated these reviews and lists of threatened species based on other crieteria such as Biodiversity
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Endangered species


protect conservation-reliant species: for example, forbidding hunting, restricting land development or creating protected areas. Population numbers, trends and species' conservation status can be found at the lists of organisms by population. The conservation status of a species indicates the likelihood that it will become extinct. Many factors are considered when assessing the status of a species; e.g., such statistics as the number remaining, the overall increase or decrease in the population over time, breeding success rates, or known threats. The IUCN Red List of
3812128
Western rosella


is as protected fauna, and of the inland subspecies is one of "likely to become extinct". In the assessment of the inland "P. icterotis xanthogenys" for the federal government's "Action Plan for Australian Birds" 2000 it was assigned the status of 'near threatened'. The 2013 assessment by the International Union for Conservation of Nature (IUCN) on their IUCN redlist assigns a status of species of least concern. It notes the species has become less common and locally extinct and the population trend is declining due
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Nepenthes mikei


undisclosed for conservation purposes, "N. mikei" grows alongside "N. flava". The conservation status of "N. mikei" is listed as Vulnerable on the IUCN Red List, based on an assessment carried out in 2000. This agrees with an informal assessment made by Charles Clarke in 2001, who also classified the species as Vulnerable based on the IUCN criteria. However, Clarke noted that since substantial populations of "N. mikei" lie within protected areas, they "are unlikely to become threatened in the foreseeable future".
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Data deficient


A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessarily indicate that the species has not been extensively studied; but it does indicate that little or no information is available on the abundance and distribution of the species. The IUCN recommends that care be taken to avoid classing species as "data deficient" when the absence of records may indicate dangerously low abundance:
11837392
List of critically endangered birds


As of May 2019, the International Union for Conservation of Nature (IUCN) lists 224 critically endangered avian species, including 18 which are tagged as "possibly extinct" or "possibly extinct in the wild". 2.1% of all evaluated avian species are listed as critically endangered. No subpopulations of birds have been evaluated by the IUCN. Additionally 61 avian species (0.59% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status. As these species
1905585
List of mammals of Oman


This is a list of the mammal species recorded in Oman. There are at least 62 mammal species in Oman that have been assessed by the International Union for Conservation of Nature (IUCN), of these, one is critically endangered, four are endangered, eight are vulnerable, and two are near threatened. The following tags are used to highlight each species' conservation status as assessed by the IUCN: Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of near threatened
21788905
IUCN Red List of Ecosystems


protocols, developed by national or subnational authorities differed in focus and implementation, were often incomparable, and unable of separating strict risk analysis from the process of setting conservation priorities. In 2008, during the IV World Conservation Congress (Barcelona, Spain), the process of developing criteria to estimate their risk status was activated and the IUCN laid the foundations for the creation of a Red List of Ecosystems (RLE). The initial development of the criteria for the Red List of ecosystems was based on analogies with the criteria for species
4416628
Antarctic minke whale


and Brazil, and the latter off South Australia. All involved calves or juveniles. The Antarctic minke whale is currently considered Near Threatened by the IUCN red list. However, the IUCN states that the population size is "clearly in the hundreds of thousands". The Antarctic minke whale is listed on Appendix II of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). It is listed on Appendix II as it has an unfavourable conservation status or would benefit significantly from international co-operation organised by tailored
7370221
Nepenthes faizaliana


regular visitors, the species can be easily observed along the Pinnacles Trail on Mount Api. The conservation status of "N. faizaliana" is listed as Vulnerable on the 2006 IUCN Red List of Threatened Species based on an assessment carried out in 2000. In 1997, Charles Clarke informally classified the species as Vulnerable based on the IUCN criteria, noting that it is Conservation Dependent if populations in protected areas are taken into account. "Nepenthes faizaliana" belongs to the loosely defined ""N. maxima" complex", which also includes
9597176
Orinoco crocodile


. Usually 14 weeks after mating, the female crocodile will dig a nest and lay about 40 eggs. It is a hole-nester as are all crocodilians and usually makes the nest on a sand bank. The eggs incubate under a mixture of soil and rotting vegetation for around three months. The most common predator of buried eggs are tegu lizards although the tegus are sometimes caught and killed by the mother crocodile. During the night, they hatch and call to their mother which digs them out of the nest and carries them
4873465
Astatotilapia bloyeti


Astatotilapia bloyeti is a species of haplochromine cichlid from the coastal river systems of Tanzania. Reports from other areas of Africa are considered to refer to related species. The IUCN considers it to be endemic to the Pangani River and includes Kenya in its range. This species taxonomic status is uncertain and some authorities place it in the genus "Haplochromis" while others retain it in "Astatotilapia". This taxonomic uncertainty has led the IUCN to classify this species conservation status as Data Deficient. The specific name honours the collector of the type
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Phanogomphus diminutus


Phanogomphus diminutus is a species of clubtail dragonfly in the family Gomphidae. It is endemic to the southeastern United States. Its natural habitats are boggy trickles and slow, small streams and lakes, all with part sand, part silt bottoms, and Sphagnum moss margins. The IUCN conservation status of "Phanogomphus diminutus" is "LC", least concern, with no immediate threat to the species' survival. The IUCN status was reviewed in 2018. The species had a Red List assessment of "rare" from 1986 to 1994
16664675
List of critically endangered fishes


meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of "data deficient" indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed." This is a complete list of critically endangered fish species and
17654333
List of critically endangered reptiles


information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of "data deficient" indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed." This is a complete list of critically endangered reptile species and subspecies evaluated by the
2441629
Tamaraw


was classified as "Status inadequately known" by the IUCN. Enough data was gathered on the tamaraw population by 1986, and the IUCN conservation monitoring center declared the species endangered. Throughout succeeding surveys conducted in 1988, 1990, 1994 and 1996, the species remained listed on the Red List as "endangered". The relisting of the species in 1996 fulfilled the IUCN criteria "B1+2c" and "D1". Criterion "B1" indicated that the species' range was less than 500 square kilometers and is known
16233893
Orinoco Delta swamp forests


punctata", "Manilkara bidentata", "Chlorocardium rodiei", "Pentaclethra macroloba", "Pterocarpus officinalis", "Symphonia globulifera" and "Terminalia obovata". Palms, often growing in stands of one species, include "Astrocaryum aculeatum", açaí palm ("Euterpe oleracea"), "Manicaria saccifera" and "Mauritia flexuosa". The swamp forests are home to species that include Orinoco crocodile ("Crocodylus intermedius"), Amazon river dolphin ("Inia geoffrensis"), jaguar ("Panthera
734767
Mugger crocodile


The mugger crocodile ("Crocodylus palustris"), also called marsh crocodile, broad-snouted crocodile and mugger is a crocodilian native to freshwater habitats from southern Iran and Pakistan to the Indian subcontinent and Sri Lanka. It is extinct in Bhutan and Myanmar and has been listed as Vulnerable on the IUCN Red List since 1982. It is a medium-sized crocodile that inhabits lakes, rivers, marshes and artificial ponds. Both young and adult mugger crocodiles dig burrows where they retreat when temperature drops below or exceeds . Females dig
1936098
Amolops marmoratus


Myanmar and likely from northern Thailand, though it may occur more widely. For example, International Union for Conservation of Nature (IUCN), using a less stringent delineation of the species, reported the species also from Bangladesh, Bhutan, China, India, and Nepal. While IUCN in its assessment in 2004 considered "Amolops marmoratus" to be of "Least Concern" in view of its wide distribution and presumed large population, recognizing higher biodiversity within the species warrants further assessment of its conservation status. As is typical for
12513167
List of critically endangered plants


As of September 2016, the International Union for Conservation of Nature (IUCN) lists 2493 critically endangered plant species, including 145 which are tagged as "possibly extinct" or "possibly extinct in the wild". 11% of all evaluated plant species are listed as critically endangered. The IUCN also lists 89 subspecies and 70 varieties as critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status. As
14631905
List of parrots


the base of the parrot tree. Most authors now recognize this group as a separate taxon containing two families: Nestoridae and Strigopidae. Conversely, the relationships among various cockatoo genera are largely resolved. Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the bird's range is provided. Ranges are based on the IUCN red list for that species unless otherwise noted. All extinct
15237656
Rajeev Raghavan


status of several endemic fish species of the Western Ghats. As of May 2019, Rajeev has published over 140 peer-reviewed papers (with 1300 citations) in some of the world’s top journals in fisheries and conservation science including Fish and Fisheries, Biological Conservation, ; Marine Policy and Ambio. Rajeev is closely involved with the work of the IUCN Species Survival Commission (IUCN SSC) holding multiple responsibilities in its various groups. He is currently the South Asia Coordinator of the Freshwater Fish Specialist Group (FFSG); Freshwater
18829219
List of critically endangered amphibians


As of September 2016, the International Union for Conservation of Nature (IUCN) lists 545 critically endangered amphibian species, including 113 which are tagged as "possibly extinct". 8.4% of all evaluated amphibian species are listed as critically endangered. No subpopulations of amphibians have been evaluated by the IUCN. Additionally 1567 amphibian species (24% of those evaluated) are listed as "data deficient", meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they
2441403
NatureServe


partners with IUCN Red List, the accepted standard for worldwide imperiled species classification, providing coordination assistance and data from their own assessments to the IUCN's conservation assessments, and working together on ongoing assessments. NatureServe Explorer is a web-based database provides public access to NatureServe's proprietary information on US and Canadian ecosystems and plant, animal, and fungus species. This includes ranked NatureServe conservation status assessment data on state, national, and global levels, considered a leading classification of imperiled species in the United States. Infonatura is a
4262843
List of cetacean species


and then species. In tabular form, seven descriptors are given for each species: the common name; the scientific name; the IUCN red list status; a global population estimate; a global map with its range; its weight with an image of its shape, and its size relative to a human; and a photograph. Conservation status codes listed follow the IUCN red list of threatened species (v. 2014.3; data current at ). Where available, the global population estimate has been listed. When not cited or footnoted
18467169
Wild Bactrian camel


years. According to the International Union for Conservation of Nature and Natural Resources (IUCN) its status was critical in the 1960s and gradually declined to critically endangered (Criteria: A3de + 4ade) status in 2000–2004 (IUCN 2004). Wild Bactrian camels face many threats. The main threat is illegal hunting of the camels for their meat. In the Gobi Reserve Area, 25 to 30 camels are reported to be poached every year, and about 20 in the Lop Nur Reserve. Hunters have been killing the camels by laying
6416359
Phengaris rebeli


rigorously studied in Europe because it has priority conservation status and was classified as "vulnerable" in 2000 by the IUCN Red List of Threatened Species. It was first brought to the IUCN's attention and listed on the IUCN Red List of Threatened Species in 1986. The species was categorized as "vulnerable" because its population decreased by 20-50% in the last 25 years and has been extirpated from at least one country. The causes of this drastic population reduction are thought to be agricultural land use changes, abandonment of
12173134
Trypanosoma irwini


Trypanosoma irwini is a blood parasite of koalas. First discovered in 2009 by Linda M. McInnes and her peers, it was named in honor of Steve Irwin, "The Crocodile Hunter". The study done by McInnes et al. was the first to describe a Trypanosoma species from koalas. The koala ("Phascolarctos cinereus") is distributed in patches throughout the eastern regions of Australia. The International Union for Conservation of Nature and Natural Resources (IUCN) listed the koala as potentially vulnerable in 1992, and the New South
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