Search
Now showing items 1-10 of 746
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 ...
A morpho-histological and ultrastructural study of the mandibular glands of Atta sexdens worker ants (Hymenoptera : Formicidae)
(California State University, 2001-01-01)
We describe here the morphology, histology and ultrastructure of the mandibular glands of Atta sexdens (Hymenoptera: Formicidae) worker ants. The mandibular glands consist of a reservoir with an excretory duct and a secretory ...
A morpho-histological and ultrastructural study of the mandibular glands of Atta sexdens worker ants (Hymenoptera: Formicidae)
(2001-12-01)
We describe here the morphology, histology and ultrastructure of the mandibular glands of Atta sexdens (Hymenoptera: Formicidae) worker ants. The mandibular glands consist of a reservoir with an excretory duct and a secretory ...
Morphology of the eggs and larvae of Cyphomyrmex transversus Emery (Formicidae: Myrmicinae: Attini) and a note on the relationship with its symbiotic fungus
(Magnolia Press, 2008-11-05)
The morphology of the eggs and larvae of the ant Cyphomyrmex transversus Emery is here described and discussed for the first time. Some morphological characteristics of the symbiotic fungus that covers the eggs, larvae, ...
Resource partitioning among epigaeic and hypogaeic ants (Hymenoptera: Formicidae) of a Brazilian cocoa plantation
(1995-12-01)
Patterns of dietary and foraging strata utilization by the ground ant community of a Brazilian cocoa planatation were examined using sugar, meat and flour baits on the surface as well as buried. A total of 49 ant species ...
Temporal polyethism in workers of Ectatomma edentatum (Formicidae: Ponerinae)
(2003-03-15)
In the present study, adult ants emerged from five nests kept under laboratory conditions were individually monitored in order to determine their longevity and observe their individual behavior in relation to age (temporal ...
New record for the army ant Labidus mars (Formicidae: Ecitoninae) in the Atlantic Rain Forest of São Paulo State, Brazil
(2003-08-18)
The occurrence of the army ant Labidus mars in Mogi das Cruzes (SP, Brazil) is recorded and includes additional information about the area, diet and foraging schedule of this rare army ant. This species of Ecitoninae was ...
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 ...
The origin of lipid droplets in the post-pharyngeal gland of Dinoponera australis (Formicidae: Ponerinae)
(2002-09-01)
The post-pharyngeal gland of normal and starvation ants was studied under TEM. This study showed an orgin of lipids droplets from mitochondria (named derivate mitochondria) in the normal ants and the lipids absence or ...
Division of labor in Ectatomma edentatum (Hymenoptera, Formicidae)
(2002-01-01)
The behavioral division of labor between queens and workers of E. edentatum was investigated under laboratory conditions. Each behavioral category of both castes was described by direct observation of the ants in the ...