Gaster flagging by fire ants (Solenopsis spp.): Functional significance of venom dispersal behavior

  title={Gaster flagging by fire ants (Solenopsis spp.): Functional significance of venom dispersal behavior},
  author={Martin S. Obin and Robert K. vander Meer},
  journal={Journal of Chemical Ecology},
Behavioral and chemical studies with laboratory colonies indicate that the imported fire antSolenopsis invicta Buren (Myrmicinae) disperses venom through the air by raising and vibrating its gaster (i.e., “gaster flagging. [] Key Result Brood tenders removed from the brood cell and tested in heteropspecific encounters in the foraging arena exhibited the complete repertoire of agonistic gaster flagging behavior. These observations suggest that airborne venom dispersal by workers is context specific rather…

Chemical mimicry in a parasitoid (Hymenoptera: Eucharitidae) of fire ants (Hymenoptera: Formicidae)

Gas Chromatographic profiles of hexane soaks of various stages of the parasite and host suggest that during development within the ant colony the parasite acquires the colony odor of the host through a passive mechanism, based on simple contact and other social interactions.

Paralyzing Action from a Distance in an Arboreal African Ant Species

The bioassays showed that the toxicity of the Dufour gland contents acts in a time-dependent manner, leading to the irreversible paralysis, and, ultimately, death of the termites.

Fire Ants Feed Their Nestmates with Their Own Venom.

Evidence is reported that Solenopsis invicta feed their nestmates with their own venom, indicating that venom in the digestive system is most likely used as an internal antibiotic by fire ants.

Colony Wide Behavioral Contexts of Stridulation in Imported Fire Ants (Solenopsis invicta Buren)

The results suggest stridulation serves multiple functions in S. invicta, and four possible explanations for the function of stridulatory behavior of individuals, solitary wasps, and published literature on formicid stridulations are discussed.

Behavioral and electrophysiological studies with live larvae and larval rinses of the red imported fire ant,Solenopsis invicta Buren (Hymenoptera: Formicidae)

Behavioral and electrophysiological studies with live intact larvae and larval rinses of the red imported fire ant,Solenopsis invicta Buren, give undeniable evidence of a volatile material associated

Fire ant venom alkaloids act as key attractants for the parasitic phorid fly, Pseudacteon tricuspis (Diptera: Phoridae)

The first demonstration of the role of venom alkaloids of ants as attractants for their natural enemies is demonstrated and a semiochemical-mediated host location mechanism for P. tricuspis involving both alarm pheromones and venom alkAloids is proposed.

Behavioral Discrimination between Monogyne and Polygyne Red Fire Ants (Hymenoptera: Formicidae) in their Native Range

Assessment of discrimination behaviors of both polygynous and monogynous forms of the red fire ant, Solenopsis invicta Buren, during symmetrical interactions in neutral arenas identified monogyne and polygyne forms of S.invicta colonies in concordance with current measures, including number of queens and expression of the Gp-9 gene.

For: Naturwissenschaften

The phorid fly, Pseudacteon tricuspis Borgmeier, is an introduced parasitoid of imported fire ants, Solenopsis spp., in the United States. Although the assumption that phorid flies use fire ant alarm

Venom Alkaloid and Cuticular Hydrocarbon Profiles Are Associated with Social Organization, Queen Fertility Status, and Queen Genotype in the Fire Ant Solenopsis invicta

The chemical content of whole body surface extracts of adult queens of different developmental and reproductive stages and of adult workers from monogyne and polygyne forms of the fire ant Solenopsis invicta found that the composition of the most abundant components, venom alkaloids, differed between queens and workers, as well as between reproductive and non-reproductive queens.

Aggressive Interactions Between Solenopsis invicta and Linepithema humile (Hymenoptera: Formicidae) Under Laboratory Conditions

Fire ant baits may have long-term effects on intercolonial aggression between S. invicta and L. humile, especially when Argentine ant populations are high in the summer.



Chemical interference competition by Monomorium minimum (Hymenoptera: Formicidae)

Workers of Monomorium minimum forage above-ground for dead arthropods and extrude an irritating poison gland secretion from the sting when ants of other species are encountered at food resources, delaying invasion by competitors and prolongs the period during which the colony can dissect and retrieve pieces of the food resource.

Confrontation Behavior Between Lasius neoniger (Hymenoptera: Formicidae) and the Imported Fire Ant ,

Confrontation behavior of the imported fire ant, Solenopsis saevissima richteri Forel, and Lasius neoniger Emery was studied in the laboratory and field and showed that L. neoniger workers could destroy 2 to 3 imported fire ants for each one of its own killed.

Interference strategy of Iridomyrmex pruinosum (Hymenoptera: Formicidae) during foraging

Iridomyrmex achieves this by quickly channeling large numbers of workers to food sources and nest entrances of Myrmecocystus, employing an effective chemical mass recruitment system, and chemicall repelling its competitors with secretions from the pygidial (anal) gland.

Division of labour and specification of castes in the red imported fire ant Solenopsis invicta buren

Division of labor in fire ants based on physical castes (Hymenoptera: Formicidae: Solenopsis).

?Division of labor in two species of fire ants, Solenopsis invicta and S. geminata, was studied by a "cross-indexing" method that employed (1) the description of the total behavioral repertory of

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Ant venoms appear to represent an almost untapped reservoir of information capable of adding several exciting chapters to the story of toxinology, including prey capture and the elaboration of trail, sex, aggregation, and alarm pheromones.

Biology and control of imported fire ants.

The purpose here is to review this research, although because of space limitations, much of the recent work concerning the chemical toxicology and persistence of mirex, the chemical currently used for control of imported fire ants.


It is shown that pollen exposed to ants for brief periods exhibits reduced viability, reduced percent germination, and shorter pollen tubes relative to control pollen, which results in lower seed-set than pollination with untreated pollen.