The figures do not improve: the orangutan is still in danger
The figures do not improve: the orangutan is still in danger
Despite the alarming results of the latest research, in August 2017 the Indonesian Government said that the number of orangutans is booming, according to a population monitoring report.
An open letter signed by a group of five scientific experts in conservation and biodiversity now refutes these claims, exposing a much less hopeful reality for the three existing species on the island of Borneo. The document is published today in the journal Current Biology.
According to the government report, the data collected in nine points indicated that it went from 1,153 to 2,451 copies between 2015 and 2016. However, for researchers it is biologically impossible for a population of orangutans to double in size in just one year.
This misunderstanding may be due to the fact that the observation areas used were places that are normally used to introduce orangutans that have been threatened or persecuted. In this sense, an increase in this area would not mean the appearance of a new individual, but the relocation of an existing one.
The wild orangutan is one of the species of great apes with greater risk of disappearance. (Photo: HUTAN-KOCP)
The work also criticizes the areas chosen by the government, which in reality represent less than 5% of the area occupied by Borneo and Sumatran species and that do not include the spaces inhabited by the last species discovered, the Tapanuli orangutan.
This choice in sampling shows that the data in the report are not scientifically representative of the total number of individuals in the population, the researchers point out.
"The three species of orangutan are in a state of critical danger and present a strong decline. Their number is not increasing as indicated by the Government of Indonesia, "says Erik Meijaard, a researcher in the management of forests and fauna of the island of Borneo and a member of the Borneo Futures initiative.
The group of scientists denounces the true conditions of these animals, alluding to a study published last February in the same journal. Meijaard and his team revealed that the global demand for natural resources had eliminated more than 100,000 Borneo orangutans between 1999 and 2015. To this is added a decline of at least 25% in the last 10 years.
Similarly, recent studies showed that both the Sumatran orangutan and the newly discovered Tapanuli orangutan lost more than 60% of their population between 1985 and 2007 because of hunting and deforestation, two practices that continue to threaten these species .
The Indonesian Government is currently defining the action plan for conservation that will take place over the next decade. Scientists fear that these latest findings contribute to an erroneous statement that sentences the fate of these animals.
"If the government thinks that the number of orangutans is increasing, it will create a strategy that is completely different from what is needed to deal with a population that is decreasing at a rate that does not come," says Meijaard.
Conservationists have been warning for several years that the orangutan is one of the great apes with higher risk of extinction. The island of Borneo is a territory that is each year more marked by the human footprint, such as animal trafficking and the implantation of palm oil fields that completely alter their survival. (Source: SINC)
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