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The reproductive caste of a mature colony includes a wealthy female and man, known as the queen and king.61 The queen of the colony is responsible for egg production for the colony. Unlike in ants, the king mates with her for life.62 In some species, the abdomen of the queen swells up radically to increase fecundity, a feature known as physogastrism.61 Depending on the species, the queen starts producing reproductive winged alates at a certain period of year, and enormous swarms emerge from the colony when nuptial flight begins.
A young termite nymph. Nymphs first moult into workers, but others may farther moult to become soldiers or alates.
Termites are often compared with all the social Hymenoptera (ants and various species of bees and wasps), but their differing evolutionary origins result in major differences in life span. In the eusocial Hymenoptera, the workers are exclusively female. Males (drones) are haploid and develop from unfertilised eggs, while females (both employees and the queen) are both diploid and develop from fertilised eggs.
Depending on species, male and female workers may have different roles in a termite colony.63.
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The life cycle of a termite begins with an egg, but is different from that of a bee or ant in that it goes through a developmental process called incomplete metamorphosis, with egg, nymph and adult phases.64 Nymphs resemble little adults, and go through a series of moults as they grow.
The development of nymphs into adults can take months; the time frame depends on food availability, temperature, and the general population of this colony. Since nymphs are unable to feed themselves, employees must feed them, but employees also take part in the social life of their colony and have certain other tasks to accomplish such as foraging, building or maintaining the nest or tending to the queen.5367 Pheromones regulate the caste system in termite colonies, preventing all but a very few of those termites from becoming fertile queens.68.
Queens of the eusocial termite Reticulitermes speratus are effective at a long lifespan without sacrificing fecundity. These long-lived queens have a significantly lower degree of oxidative damage, including oxidative DNA damage, than employees, soldiers and nymphs.69 The lower degrees of damage seem to be due to increased catalase, an enzyme that protects against oxidative stress.69.
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By way of example, alates in certain species emerge during the view publisher site daytime in summer while others emerge during winter.71 The nuptial flight might also begin at dusk, when the alates swarm around areas with plenty of lights. The time when nuptial flight begins depends on the environmental conditions, the time of day, moisture, wind speed and precipitation.71 The number of termites in a colony also fluctuates, with the larger species normally having 1001,000 individuals.
The queen only lays 1020 eggs in the very early stages of the colony, but places as many as 1,000 per day when the colony is several years old.53 At adulthood, a primary queen has a fantastic capability to lay eggs. In some species, the adult queen has a greatly distended abdomen and might create 40,000 eggs a day.72 Both mature ovaries may have some 2,000 ovarioles every.73 The abdomen increases the queen's body length to several times greater than before mating and reduces her ability to maneuver freely; attendant workers provide assistance. .
The king grows only slightly larger after initial mating and continues to partner with the queen for life (a termite queen can survive between 30Â to 50Â years); this is very different from ant colonies, in that a queen mates once with the man (s) and stores the gametes for lifetime, as the male ants die soon after mating.6267 If a queen is absent, a termite king produces pheromones which encourage the development of replacement termite queens.74 Since the queen and king are monogamous, sperm competition does not occur.75.
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Termites going through incomplete metamorphosis on the road to becoming alates form a subcaste in certain species of termite, functioning as potential supplementary reproductives. These supplementary reproductives only grow into primary reproductives upon the death of a king or queen, or when the primary reproductives are separated out of the colony.6676 Supplementaries have the ability to replace a deceased primary reproductivesystem, and there can also be greater than a single supplementary within a colony.53 Some queens have the capacity to switch from sexual reproduction to asexual reproduction.