Species that have Extinct in 40 years

 (Pictured above from Wikipedia.org)

I am writing this so that we are aware and concerned with what actually happened in the last 40 years. and this is only part of the actual extinction.

• Dutch Alcon Blue Butterfly extinct in 1979

Butterflies of the dutch this is a subspecies of the Alcon Blue. Usually, often found around the pasture. Because this species is closely related to species that exist in parts of Europe and Asia, but the Dutch Alcon Blue Butterfly last seen in the wild in 1979.
Causes of extinction: Development of agricultural land has a negative impact on Alcon Blue's habitat resulting in loss of the main food source.

• Golden Toad extinct in 1989

 This beautiful frog was recently found in Costa Rica back height, but because of pollution, global warming and fungal skin infections, this species extinct in 1989

•  Javan Tiger extinct in 1979

Similar to the Sumatran Tiger, Tiger has Java native habitat on the island of Java, Indonesia. In 1800 the population of their very many, but because it is considered pests by the natives of the island hunting resulted in shrinking population. Until the 1950s, only 20 tigers left.
Causes of extinction: habitat loss, agricultural development, and poaching resulted in severe population decline. Conservation efforts in the 1940s and '50s did not succeed due to lack of adequate land and planning.

• Madeiran butterfly extinct in 2007

Madeiran butterflies are beautiful and stunning white. Butterfly butterfly was last found in the forest valleys Laurisilva Madeira Islands Portugal.
Causes of extinction: habitat loss due to development and pollution from agricultural fertilizers are the two main causes of species decline.

•  Black-Faced Honeycreeper Bird extinct in 2004

As a native species of Maui, Hawaiian Islands. Black-Faced Honeycreeper, only found in the 1970's. The population declined drastically due to volcanic eruptions, and in 1997 there were only three remaining Po'ouli. The attempt to marry off the remaining birds failed and was officially declared extinct species, seven years later.
Causes of extinction: habitat destruction, disease, predation and reduction in food sources of snails.

•  Pyrenean Ibex extinct in 2000

The last species Pyrenean ibex died in 2000. However, there are efforts to create a clone Ibex skin samples taken from the last Pyrenean Ibex, then this clone was born in 2009. But life is not how long, Pyrenean ibex died immediately after birth due to lung complications.
Causes of extinction: The hunt for Ibex has led to seriously reduced the number of animals and conservation officials blamed the Spanish government for failing to act in a timely manner.

• Round Island Burrowing Boa extinct in 1975

Originally from Round Island, a small island off the coast of Mauritius, this speciesprefers to to stay in the top-layer of soil from the slopes of a volcano . It was once found on several other islands in the vicinity of Mauritius, but its habitat has declined with the 1940's, and can only be found on Round Island after 1949. And the last seen in 1975.
Causes of extinction: The inability to survive due to volcanic disaster.