A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
11-426: Partula may refer to: Partula (gastropod) , a genus of snails of the family Partulidae Partula, a Roman goddess of childbirth; see List of Roman birth and childhood deities Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Partula . If an internal link led you here, you may wish to change
22-435: Is Vulnerable when it is not critically endangered or Endangered but is facing a high risk of extinction in the wild in the medium-term future, as defined by any of the following criteria (A to E): A) Population reduction in the form of either of the following: B) Extent of occurrence estimated to be less than 20,000 km or area of occupancy estimated to be less than 2,000 km , and estimates indicating any two of
33-670: Is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity , an example being the military macaw . In 2012 there were 5,196 animals and 6,789 plants classified as vulnerable, compared with 2,815 and 3,222, respectively, in 1998. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. The International Union for Conservation of Nature uses several criteria to enter species in this category. A taxon
44-635: The Partula species are not monophyletic . The resulting cladogram is shown below. P. aurantia P. suturalis dendronica P. suturalis strigosa P. suturalis vexillum P. suturalis strigosa P. suturalis vexillum P. clara P. mirabilis P. suturalis vexillum P. hyalina P. varia P. rosea P. hebe P. hebe bella P. clara P. exigua P. mooreana P. taeniata elongata P. taeniata nucleola P. taeniata simulans P. taeniata Vulnerable species Vulnerability
55-963: The Zoological Society of London runs the Partula Programme Consortium which maintains a captive-breeding programme in the United Kingdom, France, and the United States. As of the 2024-1 update released on June 27, the IUCN Red List of Threatened Species contains 73 Partula species. Of these, 32 are listed as extinct , 10 are extinct in the wild , 17 are critically endangered , 8 are endangered , 2 are vulnerable and only 4 species are least concern . Individuals are being reintroduced to Tahiti from captive breeding programmes since 2014. In April 2023, over 5,000 individual snails from zoos in
66-709: The United States and the United Kingdom were released on Tahiti and Mo'orea . Species within the genus Partula include: The Partula that were collected for ex situ breeding include the following: Tahiti - P. affinis , P. clara , P. hyalina , P. nodosa , P. otaheitana Moorea - P. aurantia , P. mirabilis , P. mooreana , P. suturalis , P. taeniata , P. tohiveana Huahine - P. arguta , P. rosea , P. varia Raiatea - P. faba , P. garrettii ( P. tristis ) , P. hebe , P. navigatoria ( P. dentifera ) , P. turgida Marianas - P. gibba , P. langfordi P. garrettii and P. navigatoria were misidentified as
77-425: The attention of science when Dr. Henry Crampton (along with Yoshio Kondo ) spent 50 years studying and cataloging partulids, detailing their remarkable array of morphological elements, ecological niches , and behavioral aspects that illustrate adaptive radiation . The partulids of the island of Tahiti act as an example of the possible deleterious effects of attempted biological control. After an infestation of
88-599: The family Partulidae . Many species of Partula are known under the general common names " Polynesian tree snail " and " Moorean viviparous tree snail ". Partulids are distributed across 5,000 sq mi (13,000 km ) of Pacific Ocean islands, from the Society Islands to New Guinea . Once used as decorative items in Polynesian ceremonial wear and jewelry, these small snails (averaging about one-half to three-quarters of an inch in length) gained
99-526: The introduced giant African land snails ( Achatina spp.), the carnivorous Florida rosy wolfsnail ( Euglandina rosea ) was introduced into Tahiti in an attempt to combat the African species. Instead, the rosy wolfsnail hunted the nearly 76 species of Partula that were endemic to Tahiti and the nearby islands, causing all but 12 species to go extinct within a decade. Scientists were able to save 12 of these species prior to their becoming extinct . Today,
110-486: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Partula&oldid=1124872755 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Partula (gastropod) Partula is a genus of air-breathing tropical land snails , terrestrial pulmonate gastropod mollusks in
121-806: The species in parentheses next to them. The list of surviving species are as follows: Tahiti - P. affinis , P. clara , P. hyalina , P. incrassa , P. nodosa , P. otaheitana Moorea - P. mirabilis , P. mooreana , P. suturalis , P. taeniata , P. tohiveana Huahine - P. rosea , P. varia Raiatea - P. garrettii ( P. tristis ) , P. hebe , P. meyeri , P. navigatoria ( P. dentifera ) Marianas - P. gibba , P. langfordi , P. lutaensis , P. radiolata Micronesia - P. emersoni , P. rufa Fiji - P. leefei , P. lirata Solomon Islands - P. cramptoni , P. micans Papua New Guinea - P. auraniana , P. similaris Cook Islands - P. assimilis Phylogenetic analyses revealed that many of
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