Leslie Massey
Australia is famous for its kangaroos, and the country has millions of the marsupials hopping about. But are there more kangaroos than people? The answer is: it depends on where you are in Australia. While most Australian states have a higher population of kangaroos compared to humans, in Victoria and Tasmania, the human population exceeds the kangaroo population. Overall, Australia's human population is around 26 million, while the kangaroo population is estimated to be around 45 million, meaning there are roughly 1.36 kangaroos for every person.
| Characteristics | Values |
|---|---|
| Number of kangaroos in Australia | 42.5 million (2019) or 45 million (2016-2017) or 35.3 million (2023) |
| Number of people in Australia | 26 million |
| Ratio of kangaroos to people in Australia | 1.36 kangaroos per person or 1.73 kangaroos per person |
| Commercial harvesting of kangaroos allowed in how many Australian states and territories | 6 out of 8 |
| States with higher kangaroo population than human population | New South Wales, Queensland, South Australia, Western Australia |
| States with higher human population than kangaroo population | Victoria, Tasmania |
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What You'll Learn
- Kangaroo populations fluctuate due to factors like rainfall and food availability
- Kangaroos are hunted for their skin and meat
- Commercial harvesting is allowed in six of Australia's eight states and territories
- Kangaroos can damage farmland, property, habitats, and pose a risk to human safety
- Australia's human population is around 26 million
Kangaroo populations fluctuate due to factors like rainfall and food availability
Kangaroo populations in Australia have historically outnumbered human populations. However, this dynamic fluctuates due to various factors, including rainfall and food availability.
Rainfall plays a crucial role in the survival and growth of kangaroos, especially juveniles. Studies have shown that rainfall positively impacts forage biomass, which, in turn, affects population density. In years with abundant rainfall, vegetation flourishes, leading to an increase in food sources for kangaroos, who are large herbivores. This, in combination with a lack of natural predators, can lead to an explosion in kangaroo populations.
However, the relationship between rainfall and kangaroo populations is complex and varies depending on the region and scale of observation. For example, in the pastoral zone of South Australia, red kangaroo populations were found to respond to rainfall at short time lags on smaller management areas ranging from 20,000 to 40,000 km^2. However, when examining a broader scale across the entire pastoral zone, a longer-term effect of rainfall on kangaroo populations was observed.
In addition to rainfall, food availability, or forage biomass, is a critical factor influencing kangaroo populations. High population density can reduce skeletal growth in juvenile kangaroos of both sexes, while low population density combined with increased food availability can enhance skeletal growth. Furthermore, the birthdate of kangaroos also plays a role, with earlier birthdates increasing the chances of survival due to improved environmental conditions.
The interaction between kangaroo populations and sheep and cattle densities has also been studied. While the effect of sheep and cattle on population rate change in kangaroos was positive, it is important to note that pastoralists control these densities and can increase them when grazing conditions are favourable. The relationship between rainfall and resource competition with sheep and cattle is still not fully understood, and further research is needed to model resource availability accurately.
Overall, the fluctuation in kangaroo populations due to factors like rainfall and food availability highlights the delicate balance of Australia's ecosystem. Understanding these dynamics is crucial for conservation efforts and maintaining the wellbeing of kangaroo populations.
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Kangaroos are hunted for their skin and meat
Australia is known for its kangaroos, with most of its states having a higher population of kangaroos than humans. While kangaroos are considered a national symbol, they are also hunted for their meat and skin. Almost 90 million kangaroos have been hunted for commercial purposes over the last 30 years, with the EU being Australia's main market for exports.
Kangaroo meat is widely available in Australian supermarkets and restaurants, and is considered a safe and healthy option by some. According to Professor Kerin O'Dea, an expert in nutrition at the University of South Australia, kangaroo meat is a nutritious red meat. However, animal welfare organisations have raised concerns about the ethical implications of the kangaroo meat industry, with some calling for an import ban on all goods derived from hunted kangaroos.
All commercially hunted kangaroos are wild, and four species are commonly harvested: red kangaroos, eastern and western grey kangaroos, and the common wallaroo. While the commercial kangaroo harvest is regulated by government authorities and is considered sustainable, there are concerns about the humane treatment of the animals. When a female kangaroo is shot, for example, the code states that any young in her pouch or by her side must also be killed, as they will likely starve without their mother. This has led to debates about the welfare of joeys, with some suppliers stating they have a male-only harvesting policy to reduce the number of orphaned joeys.
While some defend the industry, citing its sustainability and nutritional benefits, others argue that it is cruel and should be stopped. The debate surrounding the hunting of kangaroos for their meat and skin is complex, involving considerations of animal welfare, environmental sustainability, and cultural symbolism.
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Commercial harvesting is allowed in six of Australia's eight states and territories
Australia has a kangaroo population of approximately 48 million. Most Australian states have a higher population of kangaroos compared to humans, except for Victoria and Tasmania. Commercial kangaroo harvesting is permitted in six of Australia's eight states and territories in areas with high kangaroo populations. The practice is regulated by state regulatory bodies, which are responsible for wildlife management. Each jurisdiction develops and enforces its own kangaroo management plan to ensure kangaroo populations remain viable.
Commercial kangaroo harvesting helps to maintain Australia's rich biodiversity and reduces stress on agricultural land. Without this practice, conservation culls and non-commercial harvesting would still take place, which could result in poorer animal welfare outcomes. Harvesters have a duty of care to ensure kangaroos are taken in a way that minimises pain, suffering, and distress. The National Code of Practice outlines the most humane way to harvest kangaroos based on scientific research into kangaroo behaviour and ecology.
State and territory governments conduct regular population monitoring through aerial and ground surveys and set annual harvest quotas to prevent overharvesting. They also implement regulatory controls, including harvest times, places, species, shooter and dealer licensing, and tagging. Only four species of kangaroo and two species of wallaby can be commercially harvested. Quotas may be modified during the year based on seasonal conditions and the results of additional surveys.
The Australian government protects kangaroos under The Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). The Department of Agriculture, Water and the Environment approves state kangaroo management plans and regulates the export of kangaroo products under the Wildlife Protection (Regulation of Exports and Imports) Act 1982. The Australian Wild Game Industry Council (AWGIC) registers processing facilities for export, oversees production to ensure food safety, and certifies kangaroo meat products.
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Kangaroos can damage farmland, property, habitats, and pose a risk to human safety
While kangaroos are a protected native species in Australia, they can sometimes require management to protect people, property, and biodiversity. They can damage farmland and crops, negatively impact habitats, and pose a risk to human safety.
Kangaroos can cause significant damage to farmland and crops, threatening the success of agriculture and biodiversity. They are not picky grazers and will consume a wide variety of plant species. While this can help reduce invasive species and improve pasture health, it can also lead to overgrazing and the depletion of essential plant species. In addition, kangaroos can damage crops, reduce feed for livestock, and spread diseases like chronic phalaris toxicity, which can be contracted from eating certain toxic pasture crops.
Kangaroos can also damage property, especially in peri-urban areas where human-wildlife interactions are more frequent. Kangaroos are strongly attached to their home ranges and are reluctant to vacate, even when development occurs. This can result in kangaroos becoming landlocked, trapped by surrounding development and barriers. In these situations, kangaroos may become aggressive towards people, especially if they have regular contact with humans and become accustomed to being fed.
To manage the impact of kangaroos, landowners can employ various techniques, including fertility control, fencing, scaring, and culling. While culling can help control kangaroo numbers, it is considered a temporary solution with potential risks, labour requirements, and legal implications. Non-lethal methods, such as establishing wildlife corridors to provide alternative feeding areas, are often advocated to reduce the negative impact on crops.
In conclusion, while kangaroos are an iconic part of Australia's natural ecosystems, their growing populations, particularly in southeastern regions, can have detrimental effects on farmland, property, and habitats. Effective management strategies are essential to balance the protection of kangaroos with the safety and well-being of human communities and their economic endeavours.
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Australia's human population is around 26 million
The population of Australia is diverse. Almost half (48%) of Australians have a parent born overseas, and in 2023, 31% of people in Australia were born overseas. The Aboriginal and Torres Strait Islander (First Nations) population was 984,000 in 2021, representing 3.8% of the total Australian population. The population is concentrated in major cities, which are home to around 73% of the population. A quarter (25%) live in inner regional and outer regional Australia, with the remainder (1.9%) in remote and very remote areas.
The population of Australia has been growing older, with a median age of 38.3 years in 2024. The median age increased from 33.4 years in 1994. The percentage of the population aged 65 and over has increased from 12% in 1994 to 17% in 2024. Life expectancy at birth in Australia is high, at 81.1 years for males and 85.1 years for females in 2021-2023.
Net overseas migration has been a significant contributor to Australia's population growth. From 2005-06 to 2020-21, net overseas migration contributed more to population growth than natural increase. The population growth rate has averaged 1.4% per year over the past three decades, with a ten-year average annual growth rate of 1.4% projected to decline to between 0.2% and 0.9%.
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Frequently asked questions
Yes, there are more kangaroos than people in Australia. In 2023, kangaroo numbers in commercial harvest areas of New South Wales, Queensland, South Australia, Victoria, and Western Australia were estimated at approximately 35.3 million, while Australia's human population was around 26 million.
The kangaroo population in Australia fluctuates due to factors such as rainfall, food availability, and land management. In 2019, federal data showed there was an overall population of more than 42.5 million kangaroos. In 2016 and 2017, government figures showed that there were nearly 45 million kangaroos.
Rainy conditions contribute to a population boom for kangaroos as it increases vegetation and food availability. However, this is often followed by droughts, leading to food scarcity and starvation among kangaroos.
Commercial harvesting is allowed in six of the eight Australian states and territories with large kangaroo populations. While some see this as a necessary solution, others criticise it as a "slaughter". Kangaroos are also hunted for their skin and meat, which some argue is necessary for population control and to protect crops and homes.
No, kangaroos are not endangered. In fact, they are protected by the Australian government, and state governments develop unique kangaroo management plans to conserve kangaroos, measure populations, and ensure sustainable practices.
