Tetragonula iridipennis | |
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A hive of Tetragonula iridipennis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Apidae |
Genus: | Tetragonula |
Species: | T. iridipennis |
Binomial name | |
Tetragonula iridipennis Smith, 1854 | |
It is found in India, Sri Lanka, and Indonesia | |
Synonyms | |
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The Indian stingless bee or dammar bee, Tetragonula iridipennis, is a species of bee belonging to the family Apidae, subfamily Apinae. It was first described by Frederick Smith in 1854 who found the species in what is now the island of Sri Lanka. [2] Many older references erroneously placed this species in Melipona , an unrelated genus from the New World, [3] and until recently it was placed in Trigona , therefore still often mistakenly referred to as Trigona iridipennis. For centuries, colonies of T. iridipennis have been kept in objects such as clay pots so that their highly prized medicinal honey can be utilized. [2]
Tetragonula iridipennis belongs to the complex genus of stingless bees Tetragonula which contains more than 30 described species from the Indian subcontinent. Until recently, all species in the group were treated as belonging to the single genus "Trigona". Tetragonula iridipennis belongs to the smaller Iridipennis species group which includes four primary species: Tetragonula iridipennis, Tetragonula praeterita, Tetragonula ruficornis, and Tetragonula bengalensis. These four species were proposed in the 19th century and were poorly characterized. They have since not been directly compared via molecular studies; therefore there is uncertainty about whether they are in fact separate species. [2]
Like other bees in its sub-species group, T. iridipennis can be identified by its dark mesoscutum or middle thorax region with four distinct hair bands separated by broad glabrous interspaces. It can be further distinguished from other species in its sub group by its chestnut-brown colored mandible which does not have a black apical area and a few dark brown erect setae or hair-like structures on the margin of its scutellum. Other species in the subgroup have yellow mandibles which have black apical areas and have light colored setae on their scutella. [2] Based on studies of workers, T. indipennis has a total body length ranging from 3.5-4.0 mm and an entire body which is black to blackish brown. Size differences as well as male genitalia are key for identifying the species. They are relatively small sized bees and the male penis valve is very robust and tapers only at the apex. Male genitalia are also key to differentiating between male and female bees because the two sexes are very similar in size and color. [4]
T. iridipennis is a tropical bee species and is found throughout the Indo-Malay region. Its range was once thought to go as far as the Solomon and Caroline islands, but unlike other Tetragonula species, its range is fairly limited. [4] [5] Although it was originally discovered on the island of Sri Lanka, it is predominantly found in India. Specifically, studies have been conducted on T. iridipennis colonies located in Karnataka, Kerala, and Tamil Nadu. [6] T. iridipennis also occurs on the islands of Indonesia where it is a natural pollinator. [7]
As with other highly eusocial bee species, T. iridipennis colonies are founded by swarming. However, this process is different for stingless bees like T. iridipennis and honey bees. In honeybees, the process is abrupt and a large group of workers leaves the original colony with the old queen, thus few connections are maintained between the old and the new colonies. The process is more gradual for stingless bees such as T. iridepennis. First scout workers from the original nest find a new nest site and gradually transport resources there from the mother colony. A virgin queen from the mother colony then arrives usually accompanied by a mass of workers. It is only after several days to half a year that relations between the mother and daughter colonies are severed. [8]
Like males in other stingless bee species, there is tremendous competition between T. iridipennis males to copulate with virgin queens. Males have been observed to form large aggregations and to engage in mass flights near nests waiting for the emergence of virgin females. [5] Once a virgin queen emerges, it pairs with one of the males and a mating flight ensues, resulting in the fertilization of the queen.
While no detailed studies have been done on colony composition of T. iridipennis nests, in keeping with other stingless bee species, it is expected that the total number of males produced per colony is lower than that of workers. In some tropical species, male stingless bees stay for an extended time in nests. They then leave the nests and form aggregations. [5]
Common nesting sites include tree trunks, logs and wall cavities. The nests are relatively low to the ground and are constructed at heights between 1.93 meters and 2.2 meters from the ground. [9] Nests tend to be dark brown in color in order to blend in with their surroundings. The Indian tree species Cycas sphaerica appears to be an important nest provider for T. iridipennis. [10]
T. iridipennis collects nectar from many herbal plants such as the coco palm and the Jackfruit tree.[ citation needed ] They also collect sap from tree species such as Cycas sphaerica. [10]
The centipede species Scolopendra hardwickei is a specialized predator for stingless bee species like T. iridipennis.[ citation needed ] Predators like spiders, flies, wasps, and lizards are also a constant threat to T. iridipennis colonies because they invade nests to eat their rich honey stores. T. iridipennis defends against these predators by preventing access to its nest. It seals pores of the hive with a substance created by mixing its own salivary gland secretions with plant-derived resins. This substance called propolis also has favorable mechanical properties and is used by T. iridipennis to protect its nest from wind and rain.[ citation needed ]
While they are currently not widely utilized as agricultural pollinators in South Asia, a study by Ramadhani et al. indicates that T. iridipennis can potentially be applied as pollinator agents for tomato farming as opposed to non-native honey bees such as the European honey bee (Apis mellifera L.) While they were shown to exhibit lower pollination efficiency, fruit sizes were not significantly affected. In addition, their low price and their harmlessness make them ideal candidates for low income farmers or those concerned about the safety risk associated with stinging honey bees.[ citation needed ]
T. iridipennis stores its honey in pots which are within a food storage zone of the nest. The food storage zone contains a honey storage pot and a pollen storage pot, but these are often intermixed. [9] The honey of T. iridipennis is a rich source of antioxidant flavanoids. This is because workers collect honey from medicinally important herbal plants and flowers. The quantity of honey produced is a relatively small 600-700 grams per year.[ citation needed ]
While T. iridipennis gathers propolis to reinforce its nest, people have harvested it and discovered it to have a wide spectrum of pharmacological activities. Propolis exhibits notable antibacterial and antiviral properties. [10] The pharmacological properties of propolis are dependent on a variety of factors including plants visited by the T. iridipennis hive and the amount of pollution present in their environment.[ citation needed ]
Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfamily Apoidea. They are currently considered a clade, called Anthophila. There are over 20,000 known species of bees in seven recognized biological families. Some species – including honey bees, bumblebees, and stingless bees – live socially in colonies while most species (>90%) – including mason bees, carpenter bees, leafcutter bees, and sweat bees – are solitary.
Stingless bees (SB), sometimes called stingless honey bees or simply meliponines, are a large group of bees (from about 462 to 552 described species), comprising the tribe Meliponini (or subtribe Meliponina according to other authors). They belong in the family Apidae (subfamily Apinae), and are closely related to common honey bees (HB, tribe Apini), orchid bees (tribe Euglossini), and bumblebees (tribe Bombini). These four bee tribes belong to the corbiculate bees monophyletic group. Meliponines have stingers, but they are highly reduced and cannot be used for defense, though these bees exhibit other defensive behaviors and mechanisms. Meliponines are not the only type of bee incapable of stinging: all male bees and many female bees of several other families, such as Andrenidae and Megachilidae (tribe Dioxyini), also cannot sting.
Vulture bees, also known as carrion bees, are a small group of three closely related South American stingless bee species in the genus Trigona which feed on rotting meat. Some vulture bees produce a substance similar to royal jelly which is not derived from nectar, but rather from protein-rich secretions of the bees' hypopharyngeal glands. These secretions are likely derived from the bees' diet, which consists of carrion eaten outside the nest, and resulted in the belief that they produce what is known as "meat honey". This unusual behavior was only discovered in 1982, nearly two centuries after the bees were first classified.
Trigona hypogea is a species of stingless bee from the Neotropics; it is unusual in that it is one of only three known species of bee that exclusively uses carrion as a protein source, rather than pollen, earning it the nickname "vulture bee".
Tetragonula carbonaria is a stingless bee, endemic to the north-east coast of Australia. Its common name is sugarbag bee. They are also occasionally referred to as bush bees. The bee is known to pollinate orchid species, such as Dendrobium lichenastrum, D. toressae, and D. speciosum. It has been identified as an insect that collects pollen from the cycad Cycas media. They are also known for their small body size, reduced wing venation, and highly developed social structure comparable to honey bees.
Trigona spinipes is a species of stingless bee. It occurs in Brazil, where it is called arapuá, aripuá, irapuá, japurá or abelha-cachorro ("dog-bee"). The species name means "spiny feet" in Latin. Trigona spinipes builds its nest on trees, out of mud, resin, wax, and assorted debris, including dung. Therefore, its honey is not fit for consumption, even though it is reputed to be of good quality by itself, and is used in folk medicine. Colonies may have from 5,000 to over 100,000 workers.
Tetragonisca angustula is a small eusocial stingless bee found in México, Central and South America. It is known by a variety of names in different regions. A subspecies, Tetragonisca angustula fiebrigi, occupies different areas in South America and has a slightly different coloration.
Plebeia remota is a species of stingless bee that is in the family Apidae and tribe Meliponini. Bees of the species are normally found in a few states in southern Brazil and their nests can be found in tree cavities. Depending on the region, P. remota may have a different morphology and exhibit different behaviors. The bee's diet consists of nectar and pollen that are collected intensely from a few sources. Researchers have conducted a multitude of studies analyzing the changes that occur in the colony during reproductive diapause and what happens during the provisioning and oviposition process or POP.
Trigona corvina is a species of stingless bee that lives primarily in Central and South America. In Panama, they are sometimes known as zagañas. They live in protective nests high in the trees, but they can be extremely aggressive and territorial over their resources. They use their pheromones to protect their food sources and to signal their location to nest mates. This black stingless bees of the tribe Meliponini can be parasitic toward citrus trees but also helpful for crop pollination.
Nannotrigona testaceicornis is a eusocial stingless bee species of the order Hymenoptera and the genus Nannotrigona. Its local common name is abelhas iraí. This species has a large geographic distribution and occupies different biomes, including urban areas, around Neotropical America. The bees of this species nest in trees or artificial cavities because of this broad distribution. N. testaceicornis is important for agriculture because it will pollinate a vast number of plant species year round.
Scaptotrigona postica is a species of stingless bee that lives mainly in Brazil. It is a eusocial bee in the tribe Meliponini. S. postica is one of 25 species in the genus Scaptotrigona and is a critical pollinator of the tropical rain forests of Brazil. They construct their nests in hollowed sections of tree trunks, allowing for effective guarding at the nest entrance. This species shows colony structure similar to most members of the Meliponini tribe with three roles within the colony: queen, worker, and male. S. postica individuals have different forms of communication from cuticular hydrocarbons to pheromones and scent trails. Communication is especially useful during worker foraging for nectar and pollen through the Brazilian tropical rain forests. S. postica is a very important pollinator of the Brazilian tropical rain forests and is widely appreciated for its honey. Stingless bees account for approximately 30% of all pollination of the Brazilian Caatinga and Pantanal ecosystems and up to 90% of the pollination for many species of the Brazilian Atlantic Forest and the Amazon.
Melipona quadrifasciata is a species of eusocial, stingless bee of the order Hymenoptera. It is native to the southeastern coastal states of Brazil, where it is more commonly known as mandaçaia, which means "beautiful guard," as there is always a bee at the narrow entrance of the nest. M. quadrifasciata constructs mud hives in the hollows of trees to create thin passages that only allow one bee to pass at a time. Because they are stingless bees, M. quadrifasciata is often used as pollinators in greenhouses, outperforming honey bees in efficiency and leading to overall larger yields of fruits that were heavier, larger, and contained more seeds.
Tetragonula hockingsi is a small stingless bee native to Australia. It is found primarily in Queensland. The colonies can get quite large, with up to 10,000 workers and a single queen. Workers of Tetragonula hockingsi have been observed in fatal fights with other Tetragonula species, where the worker bees risk their lives for the potential benefit of scarce resources.
Tetragonula is a genus of stingless bees. In 1961, Brazilian bee expert J.S. Moure first proposed the genus name Tetragonula to improve the classification system by dividing the large genus Trigona stingless bees into 9 smaller groups. About 30 stingless bee species formerly placed in the genus Trigona are now placed in the genus Tetragonula. These bees are found in Oceania, in countries such as Australia, Indonesia, New Guinea, Malaysia, Thailand, the Philippines, India, Sri Lanka, and the Solomon Islands. The most recent tabulation of species listed 31 species.
Melipona scutellaris is a eusocial stingless bee species of the order Hymenoptera and the genus Melipona. It is considered to be the reared Melipona species with the largest distribution in the North and Northeast regions of Brazil, with records from Rio Grande do Norte down to Bahia. Its common name, Uruçu, comes from the Tupi "eiru su", which in this indigenous language means "big bee". Their honey is highly desirable and the materials they create for nests have been proven to be a promising source of antibiofilm agents and to present selectivity against human cancer cell lines at low concentrations compared to normal cells.
Trigona fuscipennis is a stingless bee species that originates in Mexico but is also found in Central and South America. They are an advanced eusocial group of bees and play a key role as pollinators in wet rainforests. The species has many common names, including mapaitero, sanharó, abelha-brava, xnuk, k'uris-kab, enreda, corta-cabelo, currunchos, zagaño, and enredapelos.
Trigona fulviventris, known by the common names culo-de-vaca, culo-de-señora, mu'ul-kab, culo-de-buey, and culo-de-vieja, is a species of stingless bee found in Mexico and neotropical regions of Central and South America. It is one of the largest and most widespread bees of its genus. They exhibit complex foraging behaviors by integrating spatio-temporal learning and flower scents. T. fulviventris has traditionally been observed to abstain from aggressive behavior with other species; however, more recent analyses have shown that T. fulviventris emit pheromones that act as attack signals particularly when related individuals are captured by predators.
Lestrimelitta limao is a neotropical eusocial bee species found in Brazil and Panama and is part of the Apidae family. It is a species of stingless bees that practices obligate nest robbing. They have never been spotted foraging from flowers, an observation that supports their raiding behavior. Because of their lack of hind corbiculae, they must raid to obtain enough protein in their diet in the form of pollen and nectar. Lestrimelitta limao secrete a lemon-scented alarm allomone, from which they receive their name, in order to conduct successful raids. L. limao are hypothesized to produce poisonous honey that is toxic if consumed by humans. Because robber bees are so rare and difficult to observe, there is a limited scope of information available.
Austroplebeia is a stingless bee (Meliponini) genus in the family Apidae. The genus was erected by Jesus Santiago Moure in 1961. The genus comprises five described species endemic to Australia and New Guinea.Austroplebeia are more closely related to the African stingless bees than rest of the species found in Asia and Australia.
Meliponiculture is the rational farming of stingless bees (SB), or meliponines, which is different from apiculture. In meliponiculture, the hives can be organized in meliponary, places with suitable conditions of temperature, solar orientation, humidity, and food supply.
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