Species That Were Declared Extinct Between 2010 – 2019

Species That Were Declared Extinct Between 2010 - 2019

More than 160 species have been declared extinct by the International Union for Conservation of Nature (IUCN), the Gizmodo site has been accounted for. A non-exhaustive list, knowing that it can take decades before a species is considered extinct, but also far from reality because many species disappear before they have even been identified. Of course, the Earth has already experienced several mass extinctions. But since its arrival on Earth 130,000 years ago, Man has already caused the disappearance of 2.5 million species. According to a 2015 study, the species extinction rate is 8 to 100 times higher than the “normal” rate since the beginning of the 21st century.

Here are some of these species whose end is horribly mundane.

Akialoa ellisiana

Akialoa ellisiana, painting by John Gerrard Keulemans. © Wikipedia, public domain

Also named O’ahu ‘akialoa, this small Hawaiian endemic passerine was declared extinct in 2016. Its long curved beak was used to unearth worms under the bark of trees and to suck nectar from flowers. Already threatened by deforestation, it has also been a victim of bird flu, introduced to the island by mosquitoes. The last two specimens were observed in 1933 and 1940.

Leporillus apicalis

Leporillus apicalis, illustration by John Gould. © Wikipedia, public domain

This endemic rodent from Australia built giant nests that could grow up to three meters long and one meter high. It was relatively common at the beginning of the 21st century and was easy to tame. Its decline is probably related to the invasion of cats in Australia, which alone are responsible for the disappearance of some 20 native species on the island. IUCN declared it extinct in 2016.

Melanoplus spretus

Melanoplus spretus, declared extinct in 2014,© Jacoby’s Art Gallery, Wikipedia

The locust of the rocky mountains was in its time feared by American farmers. It even seems to hold the record for the largest animal concentration in the world, with a swarm of 510,000 km2 (larger than California!) and 12,500 billion individuals observed in 1874 in Nebraska. Less than 30 years later, however, the species appears to have mysteriously disappeared, possibly due to land changes. Rocky Mountain Locust set to be extinct in 2014.

Viola cryana

Rouen, a species close to  
Viola cryana. © Bouba,  
Wikimedia Commons , GFDL

The Viola Cryana was a purple corolla flower endemic to the Yonne department. Discovered in 1866, it, unfortunately, disappeared following the extension of a quarry. Its last observation was in 1950 and has been considered extinct by IUCN since 2011. His cousin, the thought of Rouen (Viola hispida) is also seriously threatened. It even caused the modification of a road bypass of the city in 2016, resulting in the expropriation of several owners on the route.

Pipistrellus murrayi

Pipistrellus murrayi, declared extinct in 2017 
© Lindy Lumsden, IUCN
 

Better known as Christmas Island (an Australian island 345 km south-west of Indonesia), this bat species was last seen in 2009. It has probably been a victim of invasive species introduced to the island, including cats and fearsome yellow ants. Scientists have desperately tried to breed it in captivity but to no avail. The species was declared extinct in 2017.

Ornithogalum visianicum

Ornithogalum visianicum, declared extinct in 2018. © BGBM 

Also known as the Visiani Star of Bethlehem, this plant of the kind of asparagus (Asparagus), growing on the island of Palagrua in Croatia, mysteriously disappeared in 1911. However, the island has been relatively untouched by ecosystem changes and tourism. The flower has been added to the list of extinct species in 2018.

Platytropius siamensis

Platytropius siamensis , declared extinct in 2011. © C.Vidthayanon, fishbase.org 

The flat-edged Siamese catfish once swam in thailand’s rivers and marshes. Despite extensive field research, no specimens have been found since 1977 and IUCN declared it extinct in 2011. It may have been the victim of the drying up of the wetlands, as well as the pipeline work of the Chao Phraya River and the pollution of the waters.

Hibiscadelphus woodii

Three specimens of  
Hibiscadelphus woodii were rediscovered in 2019. © Kenneth Wood, NTBG

Endemic to Kauai Island in the Hawaiian Archipelago, this plant from the same family as hibiscus was declared extinct in 2016. Discovered in 1991, only four specimens were recorded. Three of them were crushed by a rock between 1995 and 1998 and the fourth was destroyed by a vandal in 2011. In 2019, however, a drone identified three Hibiscadelphus woodii on an inaccessible cliff, giving scientists hope.