Ruqayyah Snyder
Australia is home to a diverse range of native bees, with over 1,700 species ranging from tiny stingless bees to large carpenter bees. These bees play a crucial role in the pollination of native plants and are an important part of the country's unique ecosystems. Native bees can be found in most habitats across Australia, from tropical rainforests in the north to snow-capped mountains in the south and arid deserts in between. While native bees are valued for their contribution to agriculture and wildflower pollination, the country also has a large population of introduced European honeybees, which are now feral and provide crop pollination services.
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What You'll Learn
There are over 1,700 species of native bees in Australia
Australia is home to a diverse range of native bees, with over 1,700 species inhabiting the continent. These bees vary in size, form, colouration, degree of sociality, and behaviour, and relatively few resemble the familiar honeybee. The smallest bees are about 2-3 mm long, while the largest can reach up to 24 mm in length. This diversity in size is accompanied by variations in body form, ranging from broad and rotund to slender and delicate. Some bees are densely hairy, while others are sparsely hairy or almost hairless, and certain species closely resemble wasps.
The native bees of Australia exhibit a range of social behaviours. Most species are solitary, with female bees building nests and rearing their offspring without the assistance of workers. These solitary bees often construct nests in the ground or tiny hollows in timber, utilising existing spaces such as borer holes, hollow stems, or abandoned burrows. However, some species build free-standing nests using materials like soil, plant fibre, leaf pieces, resin, and wax. In contrast, Australia is also home to social species, including stingless bees that live in large colonies inside hollow trees. These social bees, belonging to the genera Tetragonula and Austroplebeia, do not possess a sting and play a crucial role in pollinating native plants and wildflowers.
The native bees of Australia are not limited to a specific habitat, as they can be found in diverse environments across the continent. They occupy steamy tropical rainforests in the north, snow-capped mountains in the south, arid inland regions, and hot dry deserts in the centre. Their presence in these varied habitats is closely linked to the availability of flowers, which provide a vital food source. While bee activity can be observed throughout the year, it tends to peak in spring and summer in southern Australia. Additionally, different species exhibit preferences for specific flowering plants, influencing their geographic ranges and flight seasons.
The species diversity and ecological importance of Australia's native bees are significant. They play a crucial role in pollinating native plants and wildflowers, contributing to the country's unique biodiversity. Furthermore, they hold value for Australian agriculture, with potential applications in crop pollination. For example, the blue-banded bee (Amegilla) is being studied for its ability to perform "buzz pollination," a specialised form of pollination that can benefit certain crops. Additionally, native social stingless bees (Tetragonula) are already being utilised for crop pollination in Queensland, showcasing the practical benefits of these native species.
The exact number of native bee species in Australia remains a subject of ongoing discovery. While estimates range from 1,700 to 2,000 species, new discoveries are not uncommon, indicating that the total species count may be even higher. This highlights the need for further research and conservation efforts to protect and understand the diverse and ecologically important native bee population of Australia.
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Most native bees are solitary
Australia is home to a diverse range of native bees, with an estimated 2,000 species, many of which are yet to be scientifically named and described. These bees vary in size, form, colouration, degree of sociality, and behaviour. While some resemble the familiar honeybee, most are quite distinct.
Among this rich diversity, most native bees in Australia are solitary. Solitary bees, as the name suggests, live and work alone, without the support of a hive or a large number of workers. The female solitary bee builds her nest independently, often in the ground or in tiny hollows in timber, without the aid of other bees. Some solitary bees are 'lodgers', utilising existing cavities like borer holes in dead wood, hollow stems, or even man-made spaces like nail holes or pipes. A few species of solitary bees build free-standing nests on stems or rocks using materials such as soil, plant fibre, leaf pieces, resin, and wax.
The Blue Banded Bee (Amegilla), for instance, is a delightful solitary bee species that is one of Australia's favourite natives. This bee is capable of a special type of pollination called 'buzz pollination'. During buzz pollination, the bee curls its body around a flower and vibrates its flight muscles, causing pollen to shoot out of tiny capsules in the flower's centre. This unique ability makes the Blue Banded Bee an excellent pollinator for certain crops.
Solitary bees play a crucial ecological role in Australia. They are important pollinators of the country's unique wildflowers and native plants, contributing to biodiversity and ecosystem health. Additionally, they hold value for Australian agriculture, with the potential to be used alongside honeybees for crop pollination.
While most native bees in Australia are solitary, there are also social species, such as the stingless bees (Tetragonula and Austroplebeia) and the Green Carpenter Bees. These social bees live in large colonies, with hundreds or even thousands of bees nesting together in hollow trees. They are also valued for their delicious honey and their effectiveness as crop pollinators, making them popular among beekeepers.
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Stingless bees are native to Australia
Australia is home to an estimated 2000 species of native bees, many of which have yet to be scientifically named and described. Of these, 11 species are stingless and fall into two genera: Tetragonula and Austroplebeia. These bees are tiny, measuring between 2.5mm and 5mm in length, and are black in colour. They are native to Queensland, northern areas of Western Australia and the Northern Territory, and north-eastern areas of New South Wales. They are tropical species, so they thrive in warm areas of Australia.
Stingless bees are a relatively primitive social species of native bees. They form large colonies in tree hollows and other cavities, including wall cavities and underneath concrete footpaths. They are one of the few species of native bees that form large social nests. Inside these nests are a queen, males, and hundreds or even thousands of worker bees.
Stingless bees are excellent pollinators of certain crops in Australia, and they produce small amounts of honey—less than one litre per year. This honey, known as Sugarbag, has a distinctive "bush" taste—a mix of sweet and sour with a hint of fruit. The taste comes from the plant resins the bees use to build their hives and honey pots. In 2020, researchers at the University of Queensland found that some species of stingless bee in Australia produce honey that has trehalulose—a sugar with an unusually low glycaemic index compared to that of conventional honey. Such low-GI honey is beneficial for humans because its consumption does not cause blood sugar spikes, and it cannot nourish the lactic acid-producing bacteria that cause tooth decay.
Stingless bees are the only native bees currently available for sale in Australia. Beekeepers transfer the nests into small hive boxes and can propagate the nests by splitting. These hives can be used for honey production and crop pollination.
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Native bees are important pollinators
Australia is home to an estimated 2000 species of native bees, with approximately 800 species found in Western Australia alone. These bees are extremely diverse in terms of size, form, colouration, degree of sociality, and behaviour. They range from the tiniest bees, measuring only 2.5 mm in length, to the largest bees, which are about ten times longer. Some are densely hairy, while others are sparsely hairy or almost hairless, and some even resemble wasps.
Native bees play a crucial role in the pollination of native plants, providing pollination services to native ecosystems and Australian agriculture. They are estimated to pollinate 80% of flowering plants around the world, with bee pollination contributing more than $15 billion in increased crop value each year. Native bees are particularly important for plants that rely on them for reproduction, such as squashes, pumpkins, and gourds, and sunflowers.
In Australia, native bees can be found in most habitats, from steamy tropical rainforests in the far north to snow-capped mountains in the south and hot, dry deserts in the centre. They occupy terrestrial habitats, including the arid inland, and are active throughout the year, although activity peaks in spring and summer in southern Australia. Many native bees are solitary, with female bees building nests to rear their offspring without the aid of workers. These nests can be found in a variety of locations, including burrows in the ground, dead wood, or existing hollows created by other insects.
Native bees are often better pollinators than honeybees due to their messier behaviour, which results in more effective pollen dispersal. They are also less susceptible to colony collapse disorder (CCD), a significant issue affecting honeybee populations worldwide. By conserving native bee populations and providing native plants, nesting habitats, and pesticide-free environments, we can support these important pollinators and the ecosystems they help sustain.
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European honey bees were introduced to Australia 200 years ago
Australia is home to an estimated 2,000 species of native bees, many of which have yet to be scientifically classified and named. The Australian continent, with its diverse habitats, is inhabited by bees of varying sizes, forms, colours, degrees of sociality, and behaviours. The tiniest bees are about 2.5 mm long, while the largest are about ten times that length.
European honey bees (Apis mellifera) were introduced to Australia by European colonists about 200 years ago, in 1822. The colonists brought the bees for honey production, but they also served to pollinate the plants the settlers had brought with them, which native bees were unable to do. The honey bees were more suited to this task because they had longer tongues, which allowed them to access the nectar in the flowers of the colonists' plants.
The European honey bee has become an indispensable part of Australian agriculture, with the industry employing 1,800 highly skilled commercial beekeepers. About 65% of Australia's agricultural production depends on pollination by honey bees, and the honey and pollination industry is estimated to be worth $14.2 billion.
However, the introduction of the European honey bee has had negative impacts on some native species. Feral honey bees have become an increasing threat to native hollow-dwelling fauna, such as black cockatoos, through competition for suitable hollows and nectar. Feral bees have also been known to aggressively remove native bees from flowers to get pollen.
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Frequently asked questions
Australia is home to an estimated 2,000 species of native bees, with approximately 800 species in Western Australia alone. Bees in Australia occupy most terrestrial habitats, including arid inland areas.
Australia has 11 species of stingless, social native bees in two genera, Tetragonula and Austroplebeia, which have no sting. There are also solitary bees, carpenter bees, blue-banded bees, leafcutters, resin bees, teddy bear bees, and Homalictus bees.
Yes, European honey bees (Apis mellifera) were introduced to Australia by European colonists 200 years ago. They have since established feral populations in the Australian bush, though the number of feral colonies is unknown.
