Learn more about the Army ant – with amazing Army ant videos, photos and facts on Arkive. Eciton burchellii are terrestrial, although colonies may occasionally bivouac ( temporarily nest) in trees several meters above ground. Army ants need very humid. Eciton burchellii swarms are largely diurnal, whereas other Eciton species may also be found hunting at night. Eciton burchellii swarms take a broad range of.

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Retrieved from ” https: These attacks often involve the destruction of the wasp nest as Eciton burchellii consume the larva and pupa.

Eciton burchellii – AntWiki

Departure calls can be used as cues to tell the other mate where the location of the raid is. The largest are formed by Eciton burchelli and other species that travel aboveground and hence are most exposed to predators Rettenmeyer et al.

The species was originally published as burchellii. Like other examples of step-clines in morphological or genetic characters, it begs the question of what mechanism is maintaining the sharp boundary between these two forms, especially for such large, nomadic organisms. Social animals need an alarm system to alert others to defend against potential threats or to recruit others to attack prey. When the light level around the ants exceeds about 0. Mandel; Thomas Rassweiler; Ian D. Yet, burchlelii biology of E.

Eciton burchellii or burchelli? All New World army ants employ retinues during emigrations ready to react this way. These results, while provocative, are not decisive and at best solve only half the problem. Army ants, like all ants, have a variety of ways to communicate with one another. On the queens propodium and petiole are horns pointed behind her.

This file is made available under the Creative Commons CC0 1. This big, conspicuous species is abundant in humid lowland forests from Brazil and Peru north to southern Mexico Borgmeier, The raids can be up to 20 meters in width and meters in length.


For species of ants that migrate frequently, such as the Eciton burchelliithe location of the nest may be the most important thermoregulation tool. A proper study would involve a great deal more genetics and the measuring of male burvhellii. The raiding biology and dietary habits of both forms are so similar that the two would certainly enter into intense competition, so one or the other ends up winning out in a particular patch burchelkii habitat.

Army Ants of Darkness: Eciton burchellii parvispinum

Two colonies gurchellii with prey emigrated on only 28 percent of the days during the migratory phase of the cycle, while two underfed colonies emigrated on 62 percent of the migratory days. As she runs along she is crowded in by the “retinue,” a shifting mob consisting of an unusual number of soldiers and darkly colored, unladen smaller workers. The lack of local co-existence among forms might have another explanation beyond mere genetic isolation by distance.

Also, the monthly migrations of ecitob ant populations help spur enhanced gene flow and eliminate the harmful effects of small breeding population sizes. These birds are commonly found following ant foraging trails.

Eciton burchellii has a fixed day activity cycle of raiding and migration that is associated with the growth of new broods of workers in the colony From Genome to Sociocomplexity. The specific pheromone used by the Eciton burchellii species is 4-methyl heptanonewhich produces an intense, but short-lived, behavioral response by others in the colony. Which species are on the road to recovery?

ADW: Eciton burchellii: INFORMATION

Taxonomists later later being the ‘s decided that the double-i was unecessary. Harvard University Press, Cambridge, Massachusetts. Insofar as this is the most-studied species, and the ant that dominates the ecjton documentariesI suppose the moniker is true.


The Animal Diversity Web is an educational resource written largely by and for college students. Eciton burchellii Soldier of Eciton burchellii Scientific classification Kingdom: Each colony consists of permanently wingless queens and four worker castes.

In print, each image must include attribution to its photographer, the specimen code of the image, and “from www. The following information is derived from Barry Bolton’s New General Cataloguea catalogue of the world’s ants.

Eciton burchellii, the swarm raider

Insects and other arthropods attempting to escape from E. The burhcellii population size of Eciton burchellii is further constrained because of flightless queen ants and colony fission. Eventually they are abandoned and left to die. In other words, Central and South America. Lectotype of Eciton burchellii parvispinum: Even though the males can fly, their dispersal is limited by the predation of nocturnal insectivores that can easily spot their larger bodies in the cleared forest patches.

At an early stage of his work, however, Schneirla b, discovered that the emigrations are burcheellii to an endogenous, precisely rhythmic control unconnected to the immediate food supply.

One first catches from a distance the beautiful crescendo of the bicolored antbird, then closer to the scene of action the characteristic low twittering notes of the antwren and other common frequenters of the raid.

This was made possible by their feat of culturing army ant colonies in the laboratory long enough to follow the brood cycle under controlled conditions.

Similar species in Central America: This event energizes the colony, sets off a maximum raid followed by emigration, and at last splits the bivouac. By serving as the focal point of the aggregating workers, she literally holds the colony together.