Giant bandicoot Facts: Super Seed Spreaders of Papua New Guinea

Appearance and behaviour

True to their name, the giant bandicoot size is massive compared to their relatives, with males weighing over 4 kilos, more than double the size of most other bandicoots. They display extreme sexual dimorphism, as males are significantly larger and heavier than females, who typically weigh around 1.4 kg.

Giant bandicoot: super seed spreaders at night

Their coat is a coarse, reddish-brown grizzled with black, shading into a paler fawn or orange colour on their belly. They have a long, tapered snout perfect for rooting in the soil and powerful forelimbs armed with strong claws for digging. These solitary, ground-dwelling marsupials are likely nocturnal, foraging under the cover of darkness to avoid detection.

Threats

The Red List classifies the giant bandicoot as Endangered. They are under siege from human activities that are stripping away their habitat and directly reducing their numbers.

Palm oil deforestation

The most serious and severe threat to the giant bandicoot is the rapid conversion of their lowland rainforest habitat into industrial oil palm plantations. Large-scale operations in Milne Bay and Oro Provinces are clearing vast tracts of primary forest, replacing complex ecosystems with monoculture rows of oil palms. This destroys the dense undergrowth and riverine forests these animals rely on for shelter and food, pushing them into smaller, fragmented pockets of land where they cannot survive.

Hunting for bushmeat

For generations, the giant bandicoot has been hunted by local communities as a source of protein. Growing human populations and the increased accessibility of forests due to logging roads have intensified hunting pressure. They are trapped or hunted with dogs, and their large size makes them a prized catch in local markets.

Predation by invasive species

Like many other marsupials in Papua and Australia, Giant Bandicoots are vulnerable to predation by introduced species. Feral dogs and cats, which accompany human settlements and logging camps, roam the forests and prey on native wildlife. The giant bandicoot, despite their size, is ill-equipped to defend themselves against these aggressive, non-native predators.

Geographic Range

Their range is restricted to the “Bird’s Tail” of Papua New Guinea, the southeastern peninsula. They are found at low elevations, typically from sea level up to around 500 metres, inhabiting the tropical moist forests and gallery forests along riverbanks in the Central, Milne Bay, and Oro Provinces. They have not been recorded in protected areas, making their populations in unprotected lowland forests critically important.

Diet

The giant bandicoot is an omnivore with a broad palate, though specific details of their diet remain elusive due to their secretive nature. They likely feed on a mix of fallen fruits, such as figs and pandanus, as well as seeds and soft vegetable matter found on the forest floor. Their powerful claws also allow them to dig for soil invertebrates, including earthworms, beetle larvae, and other insects, which provide essential protein.

Mating and reproduction

Little is known about the specific breeding habits of this secretive species. Females possess a pouch with four nipples, opening to the rear to prevent dirt from entering while they dig. They likely give birth to small litters of two to four young, which remain in the pouch until they are large enough to survive outside. The extreme size difference between male and female giant bandicoots suggests a polygynous mating system, where large males may compete for access to females.

FAQs: Giant bandicoot facts

Why are giant bandicoots important for Papua’s ecosystem?

Giant bandicoots are super-charged seed spreaders, meaning that they physically disturb and mix the soil. By digging for food, they bury leaf litter and organic matter, which speeds up nutrient cycling and improves soil quality. Their digging pits also act as small traps for water and seeds, creating perfect micro-habitats for new seedlings to grow. Furthermore, by eating fruits and moving through the forest, they help disperse seeds away from parent trees, maintaining the diversity of the rainforest structure.

What are the main threats facing the giant bandicoot?

The two biggest threats to the giant bandicoot are habitat destruction and hunting. Their lowland forest home is being cleared at an alarming rate for industrial agriculture, specifically for oil palm plantations. This forces them into smaller areas where they are easier to catch. Simultaneously, they are heavily targeted by local hunters for their meat. Their large size makes them a valuable catch, and they are often sold in local markets for a high price, further incentivising their capture.

Does the giant bandicoot have any natural predators?

While there is no specific study on predation for this exact species, we can assume their natural predators based on other ground-dwelling marsupials in Papua New Guinea. Juveniles and smaller females would likely be vulnerable to large snakes like the amethystine python and birds of prey such as the Papuan Eagle, he New Britain Sparrowhawk or the Fearful Owl. The New Guinea Quoll, a native marsupial carnivore, typically preys on smaller bandicoots, so while they might attack a young giant bandicoot, a full-grown adult male would likely be too large for them.

Are introduced predators a problem for them?

Yes, introduced predators are a major concern. Feral dogs are commonly used by hunters to track and catch bandicoots, but free-roaming dogs also hunt them independently. Feral cats are another significant threat, particularly to younger animals. Unlike native predators, these introduced species are often associated with human settlements and logging camps, bringing high predation pressure into areas that were once safe refuges.

Take Action!

The giant bandicoot is being pushed to the brink by consumer demand for cheap vegetable oil. You can help protect these beautiful marsupials and their rainforest home by being a conscious consumer. Avoid products containing unsustainable palm oil and support companies that commit to deforestation-free supply chains. By choosing a #vegan lifestyle and reducing your consumption of industrial crops, you reduce the pressure on these fragile ecosystems. Use your voice to #BoycottPalmOil and #Boycott4Wildlife.

Support Giant Bandicoots by going vegan and boycotting palm oil in the supermarket, it’s the #Boycott4Wildlife

Support the conservation of this species

This animal has no protections in place. Read about other forgotten species here. Create art to support this forgotten animal or raise awareness about them by sharing this post and using the #Boycottpalmoil #Boycott4Wildlife hashtags on social media. Also you can boycott palm oil in the supermarket.

Further Information

Aplin, K. P., Helgen, K. M., & Lunde, D. P. (2010). A review of Peroryctes broadbenti, the giant bandicoot of Papua New Guinea. American Museum Novitates, 3696, 1–41. https://doi.org/10.1206/3696.2

Leary, T., Wright, D., Hamilton, S., Singadan, R., Menzies, J., Bonaccorso, F., Helgen, K., Seri, L., Allison, A., Aplin, K., Dickman, C., & Salas, L. (2016). Peroryctes broadbenti. The IUCN Red List of Threatened Species 2016: e.T16710A21965270. https://dx.doi.org/10.2305/IUCN.UK.2016-2.RLTS.T16710A21965270.en

Mummelthei, J. (2020). Palm oil: The ingredient behind human rights abuses and eco-destruction that’s probably in your kitchen. Independent Media Institute. https://independentmediainstitute.org/2020/12/22/palm-oil-the-ingredient-behind-human-rights-abuses-and-eco-destruction-thats-probably-in-your-kitchen/

World Rainforest Movement. (2024). The insane expansion of industrial oil palm in the land of Papua and the resistance struggle of indigenous peoples. World Rainforest Movement Bulletin. https://www.wrm.org.uy/bulletin-articles/the-insane-expansion-of-industrial-oil-palm-in-the-land-of-papua-and-the-resistance-struggle-of-indigenous-peoples

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