Substrate distribution in fungus chambers in nests of <i>Atta bisphaerica</i> Forel, 1908 (Hym., Formicidae)

Moreira, Aldenise Alves; Forti, Luíz Carlos; Boaretto, M. A. C.; Andrade, Ana Paula Protti de; Rossi, Marcelo

doi:10.1046/j.1439-0418.2003.00719.x

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Knowing the arrangement or disposition of foraging tunnels, which in A. bisphaerica is radial in numbers that vary from 7 to 16 per colony with a mean length of 9.5 ± 4.7 m (table 4), would be much more practical for placement of toxic baits, since A. bisphaerica only transports toxic baits placed on the foraging pathways, which are continuations of subterranean foraging tunnels. Although this is the case, the placement of toxic baits in a few holes should be sufficient because such distribution of baits would be uniform inside the colony ( Moreira et al., 2003).…”

Section: Discussionmentioning

confidence: 99%

External and internal structure of Atta bisphaerica Forel (Hymenoptera: Formicidae) nests

Moreira

Forti

Boaretto

et al. 2004

J Applied Entomology

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This work was carried out to determine the internal and external structures of Atta bisphaerica (Forel) nests. Six nests were excavated and during excavation, all data referring to chambers and tunnels were recorded. Three nests had been internally cement-moulded, which enabled a better view of the chamber and tunnel structures. Atta bisphaerica nests presented a similar structural pattern, varying only in the number of chambers as a function of external mound area. Chambers were spherical with two communication tunnels. Internal tunnels had an elliptical section, sometimes circular, indirectly linked to chambers through ramifications and directly through short tunnels. Entrance holes were linked to the area of highest chamber concentration by tunnels from the elliptical section, which led to the nest in a radial manner. Knowledge of the colony's three-dimensional architecture permits successful application of chemical control processes, reduces the quantity of product applied, and consequently diminishes costs and environmental damage.

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Section: Discussionmentioning

confidence: 99%

External and internal structure of Atta bisphaerica Forel (Hymenoptera: Formicidae) nests

Moreira

Forti

Boaretto

et al. 2004

J Applied Entomology

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“…In order to study the internal architecture, the same nests for which external area was investigated, were excavated by means of the procedure described by Moreira et al (2003Moreira et al ( , 2004, plus five other nests (adding to a total of twenty five) selected following the two criteria mentioned above. The five extra nests were molded with cement.…”

Section: Methodsmentioning

confidence: 99%

Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Júnior¹,

Castellani²,

Moreira³

et al. 2013

Sociobiology

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Ants of the genera Atta and Acromyrmex (Myrmicinae: Attini) are in general pests for agricultural and pasture areas. In southwestern Bahia pastures, in Brazil, Acromyrmex landolti Forel occurs at intermediate densities of 260 nests ha-1. In spite of its economic importance, there is not enough research on the bioecological aspects of such species. This paper aims to study the spatial distribution and the architectural pattern of A. landolti nests, as well as to establish the foundations for the improvement of strategies for controlling the pest. The research was carried out during the period of June 2011 and May 2012, in an area of pastures measuring 2.7 ha, in Itapetinga, in Bahia. Twenty five nests were selected. The external mound area, height of the tower, distance between the tower and the external mound area, as well as the tower diameter were all registered. In order to describe the internal architecture, the same nests were completely excavated and five were molded in cement. The spatial distribution of the nests is of aggregated type. The towers height is 2.1 cm and the average diameter is 1.2 cm. The amount of loose soil is of about 8.0 cm from the tower, with an average area of 472.9±312.5 cm² and average volume of 1.4 L±0.9. The depth of the nests varies between 7.0 and 78.0 cm, with an average of 33.2±21.29 cm. The nests have, in average, 4.4±2.0 chambers, being two nests with just one chamber (8%) and another nest (4%) with 11 chambers.

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“…This information contributes to the establishment of the ideal method for grass-cutting ants controlling (e.g., the application of formicides in dry powder formulation in colonies aged more than one year reaches only a few chambers and ants on the soil surface and therefore the control is inefficient). Thus, the control by toxic baits is efficient because ants transport and uniformly distribute the baits inside in the colony (Moreira et al, 2003).…”

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confidence: 99%

Nest Architecture Development of Grass-Cutting Ants, Atta capiguara (Hymenoptera: Formicidae)

Farias

Camargo

Caldato

et al. 2020

Rev. Bras. entomol.

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Substrate distribution in fungus chambers in nests of Atta bisphaerica Forel, 1908 (Hym., Formicidae)

Cited by 7 publications

References 4 publications

External and internal structure of Atta bisphaerica Forel (Hymenoptera: Formicidae) nests

External and internal structure of Atta bisphaerica Forel (Hymenoptera: Formicidae) nests

Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Nest Architecture Development of Grass-Cutting Ants, Atta capiguara (Hymenoptera: Formicidae)

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