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.
|Published (Last):||13 October 2014|
|PDF File Size:||2.7 Mb|
|ePub File Size:||18.77 Mb|
|Price:||Free* [*Free Regsitration Required]|
A drastic reduction in the work force may cause the colony to revert to the caste structure of a young colony, which does not have soldiers.
Species: Atta sexdens – AntWeb
Scutellum without a furrow. Herbivory of Leaf-cutting Ants. The division of labour also depends on the age of the worker. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.
In Guatemala, it may also colombica urn, and perhaps in Montevideo urn Acromyrmex sp. Poulsen, ; Wirth, et al. Protruding hair quite short, in the middle of the forehead, occiput and sides of the head scattered, abundant on the thorax, and gaster Sielchen. Several fungus species, such as Cordycepsspecially infect and kill ants. Ecological EntomologyVol 4, Issue 3: Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.
Once the leaf fragments are inside the nest each is prepared with a drop of anal liquid which acts as a fertilizer.
ANTSTORE – Ameisenshop – Ameisen kaufen – Atta sexdens
We argue that the excavation of deep founding nests in A. We do not consider sexual differences i. The smallest of the four castes, gardener-nurses have an average head width of 1. The mated queen lands on the ground and tears off her now-unnecessary wings. Department of Agriculture, Forest Service.
In fact, Atta ants are considered the aatta one herbivorous pest in many areas where they are found. The ants use a bacteria genus Streptomyces that produces antibodies to fight Escovopsis.
The larvaeafter an additional three to four weeks pupate. The next batches of eggs are the specialists and forager-excavators, to help expand the colony and find more material for the fungus to grow on.
Members of different colonies are not spared if they happen to wander into a colony that isn’t their own. Three to four weeks after being layed, the egg hatches and a larva emerges. Wilson, ; Wirth, et al. Global Georegions Bioregions Projects Museums. Atta sexdens Linnaeus, Specimen labels. Atta sexdens naturally expand their colonies to large amounts of land and resources in all directions and dimensions if given enough room to grow.
Wilson and Holldobler, The four castes of A. Soldiers usually appear when the colony has a population of aboutBelknap Press of Harvard University Press. The colonies contain up to chambers with a combined volume of more than 20 m 3. Connect with us Help us improve the site by taking our survey.
Nests of two Atta leafcutting ant species, Atta vollenweideri and Atta sexdens rubropilosaxtta in different soil types, alfisols and oxisols. You must log in to access this functionality.
Atta sexdenslike all hymenopterans are haplo-diploid, meaning males are haploid one of each chromosome and females are diploid a pair of each chromosome. Fertilized eggs produce females.