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Science

Science begins tracking Indonesia’s lost ‘phantom’ tiger

thedailyposting.comBy thedailyposting.comMarch 28, 2024No Comments

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The hair sparked a search for the extinct Javan tiger, long thought to be a ghost from the past.

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Indonesia’s islands were once home to three distinct tiger subspecies, each a majestic symbol of the country’s rich biodiversity. Sumatran tiger (Panthera Tigris Sumatrae), Balitora (Panthera Tigris Barrica) and Javan tiger (panthera tigris sondaica) flourished throughout the Indonesian archipelago. Until we drove the latter two subspecies to extinction over the last century, they represented the natural wonders of Sumatra, Bali, and Java, respectively—or so we thought, but recently we’ve discovered one from the forests of West Java. A book of tiger hair appeared.

Historically, these tigers have played a vital role in tropical island ecosystems. However, the 20th century was a dark time for Indonesia’s tigers, with the tiger population drastically decreasing due to human activities.

By 2008 and 2013, IUCN Red ListA global species conservation inventory has officially declared the Balinese and Javan tigers extinct, the unfortunate victims of habitat destruction, poaching and human-tiger conflict. The Balinese tiger disappeared in the 1940s, and the last confirmed sighting of a Javan tiger was in the 1970s. This leaves the only remaining tiger subspecies in Indonesia, the Sumatran tiger, with an estimated population of less than 400 individuals.

According to the IUCN, it is the last official bastion of the Indonesian tiger subspecies.

getty

A single hair reignites hope for Javan tiger survival

In 2019, there was a glimmer of hope when local resident and conservationist Lipi Yanul Fajar claimed to have spotted a Javan tiger near the village of Shipendui in the forest heart of South Sukabumi, West Java province. To strengthen the credibility of Fajar’s observations, researchers also found hair along with claw marks and footprints.

These were potentially monumental clues. The hair was then handed over to the Biological Research Center – National Agency for Research and Innovation (BRIN), where genetic analysis was carried out. The details were published in a recent paper published in October 2016. Oryxa leading conservation journal.

This analysis was carried out in parallel with comparisons with several hair strands collected from Sumatran tigers in North Sumatra province. The aim was to meticulously compare the genetic sequences of these samples to confirm whether the fur found near Shipendui really belonged to the Javan tiger, long thought to be extinct. Ta.

Mitochondrial DNA taken from the hair showed more significant genetic similarities to a Javan tiger specimen dating to 1930 housed at the Bogoriense Zoo Museum than to any other tiger subspecies. This convincing evidence suggests that the fur does indeed belong to a Javan tiger. panthera tigris sondaicaThis provides the first genetic evidence in decades that tigers may still exist deep in Java’s forests.

This discovery had a huge impact on global conservation efforts.

Although further research is needed to confirm whether Javan tigers survive in the wild, this paper highlights the implications of this finding, not only for the Javan tiger’s chances of survival but also for broader implications for biodiversity conservation in Indonesia and the world. emphasizes the importance of This highlights the importance of genetic research in wildlife conservation and provides a pathway to confirming the existence of species considered extinct or near-extinct.

Furthermore, this calls for urgent and comprehensive measures such as habitat protection and anti-poaching measures to ensure the survival of the Javan tiger, which would certainly be on the brink of extinction if confirmed to exist. This highlights the need for comprehensive conservation strategies. This research has sparked a new sense of alarm and hope among conservationists and the public.

The possibility that Javan tigers may still roam our forests, albeit in very small numbers, challenges us to rethink what we know about wildlife extinction and the resilience of nature. It is also a sobering reminder of the importance of continuous monitoring and research in conservation efforts, highlighting how even the smallest clues, like a hair, can lead to breakthrough discoveries. doing.

As the scientific community and conservationists rally around the discovery, calls are growing for more extensive fieldwork in the area where the hair was discovered. Camera traps, environmental DNA (eDNA) analysis and further genetic studies are planned to look for further evidence of the presence of Javan tigers. With persistent effort and a little luck, it is hoped that the mystery of Indonesia’s “phantom” tigers will be completely solved.

I am an American evolutionary biologist with a Ph.D. Fields of ecology and evolutionary biology. I am based at Rutgers University and specialize in research in biodiversity, evolution, and genomics. My research has taken me around the world, including Latin America, Africa, Southeast Asia, and the Pacific Islands, conducting fieldwork in remote tropical jungles, arid deserts, and isolated islands. My work as a field biologist, combined with studies of evolutionary genomics and natural history museum collections, leads to the discovery of new species, reveals the unique evolutionary processes that shape biodiversity, and informs global conservation efforts. We have supported you. Do you have a great nature photo you’d like to share? Send it to scott.travers.phd@gmail.com. I will do my best to include it in future articles.

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