Sciency Thoughts: Riau Province

Tuesday, 10 December 2019

Indonesian authoriteis arrest five suspected Tiger poachers in Riau Province, Sumatra.

Five people have been arrested on suspicion of Tiger poaching in the Pelalawan Regency of Riau Province, Sumatra on Saturday 7 December 2019. Three people were initially arrested in a raid in Teluk Binjai village by personnel from the Environment and Forestry Ministry and the National Police, following a tip off they were trying to sell a Tiger skin. The three were found to be in possession of both the skin of a female Tiger, and a jar containing four Tiger foetuses; it is not clear if they come from the same animal. The three gave the names of two further people who were later arrested in Pangkalan Lesung subdistrict. It is thought that all of these individuals were part of a ring of poachers and smugglers that had targeted Tigers on several parts of the island of Sumatra.

Tiger body parts seized in a raid by authorities in Sumatra this week. AFP.

The Sumatran Tiger, Panthera tigris sondaica, is considered to be Critically Endangered under the terms of the International Union for the Conservation of Nature's Red List of Threatened Species, with less than 400 individuals surviving on the island of Sumatra; the subspecies was formerly also found on Java and Borneo, but is thought to be extinct there. Sumatran Tigers are threatened by habitat loos and poaching, with poaching thought to be resulting in the loss of about 40 animals per year.

Elephas maximus sumatrensis: Two Sumatran Elephants found dead within a week.

Authorities in Indonesia are investigating after two Sumatran Elephants, Elephas maximus sumatrensis, were found dead within the last week. The first Elephant, a 40-year-old male, was found in a plantation near Bengkalis in Riau Province on Tuesday 19 November 2019, having been decapitated and having its tusks removed. The cause of death of this animal is unclear, as it had no other injuries and was showing no signs of poisoning (it is unlikely that anybody managed to decapitate a living Elephant). The second Elephant was a 25-year-old female found on a timber plantation in Peureulak District, Aceh Province, on Wednesday 20 November. It had been dead for about a week when it was found, and showed no signs of any physical injuries, and authorities are investigating if it may have been poisoned or electrocuted.

Vetenery surgions inspecting a male Elephant found dead on a plantation near Bengkalis in Riau Province, Indonesia, on Tuesday 19 November 2019. AFP.

Many animals will simply flee such incursions, or, if unable to, are likely to end up in the cooking pots of hungry villagers. Elephants, however, are a somewhat different proposition. They are large animals, not used to being challenged by other animals in their home ranges, and typically live in matriarchal herds of up to a hundred, with herds holding large territories, criss-crossed by Elephant trails. A herd of Elephants encountering a new Human construction are unlikely to attempt to go round it, and are quite likely to maximise the damage they cause to show their displeasure. This has become a particular fuel of conflict in Indonesia, where a rapidly expanding Palm Oil industry has intruded on the Elephant's natural environment, and the Elephants have discovered that the fruit of the Oil Palm is an excellent form of food.

Indonesian police officers inspecting a female Elephant found dead on a plantation in Peureulak District on Wednesday 20 November 2019. Cek Mad/Antara Foto/Reuters.

The Sumatran Elephant Elephas maximus sumatrensis, is a subspecies of the Asian Elephant, Elephas maximus, found on the islands of Sumatra and Borneo. The subspecies is considered to be Critically Endangered in the wild under the terms of the International Union for the Conservation of Nature’s Red List of Threatened Species, with less than 2000 individuals thought to be surviving in the wild, fragmented into 20 fragmented populations. The species is threatened by habitat loss due to Human activities and direct hunting for their ivory.