Orientation of mounds in the antSolenopsis invicta (Hymenoptera, Formicidae, Myrmicinae)

  title={Orientation of mounds in the antSolenopsis invicta (Hymenoptera, Formicidae, Myrmicinae)},
  author={Michael D. Hubbard and William G. Cunningham},
  journal={Insectes Sociaux},
SummaryMost mounds of the myrmicine antSolenopsis invicta in the area of Tallahassee (Florida, U.S.A.), were found to be oval in shape with the long axis of the mound oriented in a north-south direction. This «magnetic» orientation is of probable thermoregulatory significance and is comparable to mound orientation phenomena found in the ant subfamily Formicinac and in the termites.RésuméLa plupart des dômes des nids de la fourmiSolenopsis invicta, aux environs de Tallahassee (Floride), sont de… 

Imported Fire Ant (Hymenoptera: Formicidae) Mound Shape Characteristics Along a North–South Gradient

Under favorable temperature conditions and average rainfall, imported fire ant mounds were tallest, most eccentric, and had the steepest south facing slopes during periods of low maximum sun angle.


It is found that the northernmost colonies of the imported red fire ant had higher mean supercooling points than the southernmost colonies, and there was little variation in head capsule widths of the minor workers that were measured.

Thermoregulatory brood transport in the fire ant, Solenopsis invicta

Temperature tracking within the nest is key to understanding thermoregulatory placement of fire ant brood, as well as insight into the production of sexual brood and reproduction.

Dynamic Thermal Structure of Imported Fire Ant Mounds

The results indicate that the temperature differences between mounds and their surroundings are sufficient for detection using thermal infrared remote sensing, and predictable temporal changes in surface temperature may be useful for classifying mounds in images.

Detection of Imported Fire Ant (Hymenoptera: Formicidae) Mounds with Satellite Imagery

  • J. Vogt
  • Environmental Science, Mathematics
  • 2004
Satellite imagery (0.65-m resolution, panchromatic) was tested as a detection tool for imported fire ant mounds in northeast Mississippi pasture and predicted detection rates ranged from 24% for small mounds to 66% for large mounds, based on mound height and mound area.

Distribution of the red imported fire ant, shape Solenopsis invicta, in road and powerline habitats

For early-successional species, road and powerline cuts through forests provide refugia and source populations for invading adjacent forest gaps. Within an 800 km2 forest matrix in South Carolina, we

Quantifying Imported Fire Ant (Hymenoptera: Formicidae) Mounds with Airborne Digital Imagery

  • J. Vogt
  • Environmental Science, Mathematics
  • 2004
Airborne multispectral digital imagery was used to detect imported fire ant mounds in northeast Mississippi pasture and false color infrared images were generally superior to true color images for mound detection.

Response of a Gall-Forming Guild (Hymenoptera: Cynipidae) to Stressed and Vigorous Prairie Roses

Abstract Two general hypotheses that describe the relationship between plant quality and host-plant preference of insect herbivores are the plant-stress and plant-vigor hypotheses. We examined the



Some Consequences of the Shape and Orientation of 'magnetic' Termite Mounds.

Thermal gradients within the nest support the idea that convection currents may aid air circulation and an hypothesis is advanced to account for the evolution of the unusual wedge-like shape of the magnetic nests.

Ant‐mounds as to temperature and sunshine

The ant Formica exsectoides F. builds mounds with some reference to sunlight, and measurements of internal temperatures have shown them higher in upper parts of the mound, but different in different

Zoogeography of the imported fire ants.

Über den Sozialen Wärmehaushalt der Waldameise (Formica Rufa Var. Rufo-Pratensis For.)

  • A. Steiner
  • Biology
    Zeitschrift für vergleichende Physiologie
  • 2004
Zusammenfassung1.In dem S. 25 bezeichneten Untersuchungsgebiet ist der optimale Wärmehaushalt der Formica rufa-Staaten während der „guten Jahreszeit“ charakterisiert durch eine Temperaturzone von

The Insect Societies

Conducts a definitive study of the social structure and symbiotic relationships of termites, social wasps, bees, and ants.

An Introduction to the Behaviour of Ants

Revisionary studies on the taxonomy of the imported fire ants.

- S ta t i s t ica l me thods for the ana lys i s of p rob lems in a n i m a l

  • 1965