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Foraging Behavior and Subtask Hierarchical Structure in Acromyrmex spp. (Hymenoptera: Formicidae)
(2003-12-08)
This study considers the function and complexity of tasks during foraging of three Acromyrmex species. Foraging was classified as a team task composed of 2 or 3 processes: recruitment, selection, and collection. Each process ...
Bionomics and identification of Acromyrmex (Hymenoptera: Formicidae) through an illustrated key
(2006-07-19)
This study is based on sampled data obtained in 60 equally distant municipalities of São Paulo State. In this study, we proposed a tool to identify Acromyrmex species in a practical and agile manner through the use of an ...
Ocorrência de formigas Acromyrmex Mayr, 1865, em alguns municípios do Brasil
(2005-04-01)
It were collected species of Acromyrmex Mayr, 1865 in many brazilian cities from Santa Catarina, Paraná, São Paulo, Minas Gerais, Goiás, Mato Grosso do Sul, Mato Grosso, Rondônia and Amapá states and in Paraguay and Uruguay, ...
Post-selection and return of foraged material by Acromyrmex subterraneus brunneus (Hymenoptera: Formicidae)
(2003-05-19)
Two colonies of Acromyrmex subterraneus brunneus Forel (Hymenoptera: Formicidae) were studied regarding their behavior during cultivation of the fungus garden to determine a) the existence of post-selection of foraged ...
Alimentary preconditioning in Acromyrmex subterraneus brunneus workers
(2003-05-19)
Ants suffer a strong environmental influence and are sometimes conditioned for many social activities. To understand better this phenomenon in leaf-cutting ants, 24 colonies of Acromyrmex subterraneus brunneus (Hymenoptera: ...
The effect of trail length on task partitioning in three Acromyrmex species (Hymenoptera: Formicidae)
(2003-05-19)
By comparing the behavior of three Acromyrmex (Hymenoptera, Formicidae) species during foraging on artificial trails of different lengths, we observed the occurrence of task partitioning and its relation to the food distance ...
Description and morphometry of the sting apparatus in the three worker casts of Acromyrmex subterraneus brunneus (Formicidae, Attini)
(2007-11-15)
We studied the morphometry of the sting apparatus of Acromyrmex subterraneus brunneus workers by dissection and mounting of the structures on slides, and present here a brief description and illustrations. Sting apparatus ...
PATTERNS OF COLONIZATION AND INCIPIENT NEST SURVIVAL IN ACROMYRMEX-NIGER AND ACROMYRMEX-BALZANI (HYMENOPTERA, FORMICIDAE)
(Birkhauser Verlag Ag, 1992-01-01)
Patterns of colonization by queens and incipient nest survival of the leaf-cutting ants Acromyrmex niger and Acromyrmex balzani were studied by means of belt transects and individually marked incipient nests. No relation ...
Microdon tigrinus (Diptera, Syrphidae): Populational fluctuations and specificity to the nest of Acromyrmex coronatus (Hymenoptera: Formicidae)
(2007-11-15)
This study was performed in the southern and southeastern regions of Brazil, visiting numerous municipalities, over a period of 25 years, excavating nests of 12 species of leaf-cutting ants of the Acromyrmex genus. Larvae ...
The effect of plant diversity on fungus garden development and foraging behavior of leaf-cutting ants (Hymenoptera: Formicidae)
(2003-08-18)
The leaf-cutting ants forage a wide variety of plant species, used for symbiotic fungus cultivation. To better understand this tripartite complex interaction, 24 colonies of Acromyrmex subterraneus brunneus were conditioned ...