How has the sambar deer population changed in Singapore recently?

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Sambar Deer Population Shows Signs of Recent Growth in Singapore

Recent observations and reports indicate a growing population of sambar deer in Singapore's forested areas, particularly within the Central Catchment Nature Reserve. While specific, comprehensive population counts are not frequently updated, a 2021 study by the National Parks Board estimated the sambar deer population to be around 15 individuals. This figure is contrasted by anecdotal evidence from local wildlife photographer Tan Yong Lin, who has noted an increase in sightings over the past few years, encountering the deer two to three times monthly. The species, native to Singapore, has been sighted in various locations, including along the Bukit Timah Expressway (BKE) and near Mandai, with a herd of at least six observed grazing by the roadside in a recent New Year's morning incident.
Historical Population Estimates and Recent Observations

While a precise, up-to-the-minute census is not available, historical data provides some context for the current situation. The National Parks Board's 2021 estimation of approximately 15 sambar deer offers a benchmark. However, the frequency of sightings reported by individuals like wildlife photographer Tan Yong Lin suggests a potential uptick. Mr. Tan's personal encounters, occurring two to three times each month over the last couple of years, point towards a more noticeable presence of these animals in their natural habitats and occasionally in proximity to human infrastructure.
Factors Influencing Deer Presence

The apparent increase in sambar deer sightings, particularly near roads and accessible areas, has sparked discussion among the public regarding habitat availability. Some interpret these sightings as a positive sign of nature thriving within Singapore's urban landscape, suggesting a healthy ecosystem capable of supporting wildlife. Conversely, others express concern that such occurrences, especially deer venturing near expressways like the BKE, might indicate a reduction in their available habitat, pushing them into closer proximity with human activity and transportation routes.
Wildlife Crossings and Conservation Efforts

Singapore has implemented infrastructure aimed at facilitating safe wildlife movement between nature reserves. The Eco-Link@BKE, an animal-only overhead bridge, was established in 2013 to enable creatures to traverse between the Bukit Timah and Central Catchment nature reserves without the dangers posed by vehicular traffic. Additionally, the Mandai Wildlife Bridge, opened in late 2019 near the Singapore Zoo, serves a similar purpose. By February 2022, approximately 70 wildlife species had been recorded using the Mandai Wildlife Bridge, with sambar deer being sighted there almost on a nightly basis, highlighting their utilisation of these safe passage routes.

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How has the sambar deer population changed in Singapore recently?

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