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

  title={Behavioral Discrimination between Monogyne and Polygyne Red Fire Ants (Hymenoptera: Formicidae) in their Native Range},
  author={M{\'o}nica G Chirino and Lawrence E. Gilbert and Patricia J. Folgarait},
ABSTRACT Nestmate recognition among social insects is presumed to restrict non-nestmates from exploiting nest resources. Here, we developed aggression bioassays to assess the discrimination behaviors of both polygynous and monogynous forms of the red fire ant, Solenopsis invicta Buren, during symmetrical interactions in neutral arenas. Workers from polygyne colonies exhibited risk avoidance behaviors; that is, defensive postures or the avoidance of direct contact during interactions. Workers… 

Distinct colony boundaries and larval discrimination in polygyne red imported fire ants (Solenopsis invicta)

This study examines nestmate discrimination and colony boundaries in introduced populations of the red imported fire ant and highlights the importance of combining genetic analyses with direct quantification of resource exchange to better understand the factors influencing ant invasions.

Social Structure and Genetic Distance Mediate Nestmate Recognition and Aggressiveness in the Facultative Polygynous Ant Pheidole pallidula

The results show that the social structure of colonies and the genetic distances between colonies are two major factors influencing the intensity of agonistic behaviours in the ant P. pallidula.

An Alpine ant’s behavioural polymorphism: monogyny with and without internest aggression in Tetramorium alpestre

A behavioural and social polymorphism comprising monogyny with and without internest aggression is revealed in Tetramorium alpestre sampled in Tyrol, Austria, and it is speculated that the non-aggressive and partly aggressive encounters observed represent different options in the social structure of T. al pestre.

Expression of foraging and Gp‐9 are associated with social organization in the fire ant Solenopsis invicta

Investigation of levels of expression of two major genes, the odorant binding protein Gp‐9 (general protein‐9) and foraging, in workers and young nonreproductive queens suggested that both genes have independent non‐epistatic effects on behaviour in S. invicta.

The Red Imported Fire Ant (Solenopsis invicta Buren) Kept Y not F: Predicted sNPY Endogenous Ligands Deorphanize the Short NPF (sNPF) Receptor

A synthesized peptide otherwise identical to the fire ant sequence but in which the C-terminal amidated amino acid residue ‘Y’ was switched to ‘F’, failed to activate the sNPFR, and will now allow us to investigate the function of sNPY and its cognate receptor in fire ant biology.

The foraging gene as a modulator of division of labour in social insects

Studies in genetically tractable insect species indicate that PKG signalling plays a conserved role in the neuronal plasticity of sensory, cognitive and motor functions, which underlie behaviours relevant to division of labour, including appetitive learning, aggression, stress response, phototaxis, and the response to pheromones.



Unexpected, well-developed nestmate recognition in laboratory colonies of polygyne imported fire ants (Hymenoptera: Formicidae)

Hypotheses to account for the acute intraspecific discrimination observed in the laboratory of the imported fire ant are presented and empirical testing of these hypotheses will illuminate ecological constraints and proximate mechanisms underlying the reduced intercolony discrimination associated with natural polygyne colonies of this and other ant species.

Queen primer pheromone affects conspecific fire ant (Solenopsis invicta) aggression

It is proposed that the powerful effect of fire ant queens on conspecific nestmates recognition is caused by a queen-produced recognition primer pheromone that increases the sensitivity of workers to subtle quantitative differences in nestmate recognition cues.

Experimental Conversion of Colony Social Organization in Fire Ants (Solenopsis invicta): Worker Genotype Manipulation in the Absence of Queen Effects

The results support the conclusion that polygyny in S. invicta is induced by a minimum frequency of colony workers carrying the b allele, and confirm that its expression is independent of queen genotype or history, worker genotypes at genes not linked to Gp-9, and colony genetic diversity.

Frequency and distribution of polygyne fire ants (Hymenoptera: Formicidae) in Florida.

Polygyny was most common in the region around Marion county, but smaller populations were also scattered across the state, and the density of mounds was more than twice that at monogyne sites, although mound diameters were about 20% smaller.

Phenotypic plasticity and “cultural transmission” of alternative social organizations in the fire ant Solenopsis invicta

Differences between the social forms in the mature phenotypes that are produced constrain the reproductive options of queens, so that the characteristic social organization of a colony is perpetuated by virtue of the social environment in which new queens are reared.

Stability of polygyne and monogyne fire ant populations (Hymenoptera: Formicidae: Solenopsis invicta) in the United States.

  • S. Porter
  • Environmental Science
    Journal of economic entomology
  • 1993
Overall, polygyne and monogyne sites were about 95% stable from year to year; in other words, they did not commonly switch back and forth from one form to the other.

Effects of a single gene on worker and male body mass in the fire ant Solenopsis invicta (Hymenoptera : Formicidae)

It is found that Gp-9 genotype was significantly associated with variation in worker mass in field but not laboratory colonies, and polygyne males were significantly lighter than monogyne males, indicating that social environment interacts with G p- 9 genotype to influence male mass.

Queen regulates biogenic amine level and nestmate recognition in workers of the fire ant, Solenopsis invicta

This is the first demonstration of a link between the presence of the colony queen, a worker biogenic amine, and conspecific nestmate recognition, a powerful expression of colony cohesion and territoriality.

Worker discrimination among queens in newly founded colonies of the fire ant Solenopsis invicta

Results show that workers discriminate strongly among equally familiar queens and that discrimination is based more on the queens' condition and recent social environment than on kinship.