ATTA SEXDENS PDF

Latin Name: Atta sexdens. Trivialname: Leafcutterant. Taxonomy: Subfamily: Myrmicinae Tribe: Attini. Keeping Level: (3) through their large Space- and. Atta sexdens, along with A. cephalotes, is the most widespread member of its genus. Its northern most range is Mexico, and extends through Central America. Atta sexdens: leafcutter ant: cubic feet), a colony of A. sexdens leafcutters may turn over kg ( pounds) of soil in tropical moist forests, stimulating.

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See How to Cite AntWeb. Mandibles, clypeus, scape and legs shiny.

Atta sexdens – AntWiki

Other workers follow this trail to the leaves. After gaining enough sperm to found a new colony, the queen will fly away from her old colony, up to approximately 11 km, shed her wings, burrow into the ground, and begin egg-laying. Workers vary in shape, color, sculpture and pubescence Borgmeier, Atta sexdens is an aggressively territorial species.

Precipitation is typically not limiting, but may be somewhat seasonal. Although no one has yet observed the complete Atta sexdens mating process, it is theorized that A. Forager ants search for adequate food sources in nature and, sexdems their discovery, they decide whether the source is suitable stta not for the colony. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.

When the queen goes on sexrens mating flight, called the revoada, she needs to obtain enough sperm to last her entire lifespan. The scouting workers leave behind sexdsns trail of pheromones after they discover a source of suitable plant material. Privacy policy About AntWiki Disclaimers. This is not a primitive feature. Wilson, ; Wirth, et al. The waste chambers are larger than the human head and located at the rim of the colony. Dexdens workers sometimes ride on the leaf pieces while the foragers carry them.

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The most important factor is the quantity of food.

By constructing and expanding the colony, A. Leaves and other soft plant material brought into the nest by the foragers is chewed into a seexdens and fertilized with faeces. There, the waste can decompose without endangering the ants. The two basic types of chambers are fungus farms and waste chambers. Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from August Commons category link is on Wikidata.

Colonies of Atta sexdens have a success rate of approximately 2. After there are enough gardener-nurses to take care of both brood and fungus, the queen becomes strictly an egg-laying machine for the rest of her life.

Atta ants also can communicate by using a file-and-scraper mechanism that produces sound both in the air and through the ground. Like many other kinds of ants, Atta sexdens has a specialized caste devoted to fending off predators that disturb the nest.

Retrieved from ” https: If spared from floods and human activity, the colony is usually destroyed only when the queen dies of old age, giving a successful colony a lifespan of 10—20 years. Three to four weeks after xtta laid, the egg hatches and a larva emerges. Some researchers separate seven castes, while others dismiss the idea of caste altogether.

Head width 5 mm, length without mandibles, 4, 2 mm. Usually, the garden is fertilized only with feces, but sometimes it is necessary for the queen sexdebs forage a small quantity of plant material. Thorax length 8, 5 mm.

The results showed that the distance traveled by the leaf cutting ant, Atta sexdens rubropilosain the search of food sexdejs greater than the distance traveled to return with the substrate to the colony. Foraging expeditions are hazardous, so are handled by older, thus more expendable, members of the caste.

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Atta sexdens

The second-largest caste, their heads average 2. In that time, the colony will have sent out numerous males and virgin queens to found new colonies. Proliferation zone vary the workers in paint, sculpture, gloss and hair, with some soldiers, the head is rubbed as in others he is furnished with hair, never the hair missing shots; in specimens from the south of Brazil the gaster on the sides is Zllweilen shiny the smallest workers may be the whole gaster shinyand sometimes the show occipital lobes front teeth on each side; the Epinotaldornen Zllweilen are strongly directed upwards; specimens from S.

In print, each image must include attribution to its photographer, the specimen code of the image, and “from www. After more weeks, the pupae hatch into adult workers, ready to serve the queen and colony.

Atta sexdens naturally expand their colonies to large amounts of land and resources in all directions and dimensions if given enough room to grow. The division of labour also depends on the age of the worker.

Legs covered with short oblique. The next size up, they have an average head width of 1. Head width 3 mm. The queen, when founding a new colony, cultivates a fungus garden from a scrap of the garden in her previous colony.