Defensiveness of the fire ant, Solenopsis invicta, is increased during colony rafting

@article{Haight2005DefensivenessOT,
  title={Defensiveness of the fire ant, Solenopsis invicta, is increased during colony rafting},
  author={K. Haight},
  journal={Insectes Sociaux},
  year={2005},
  volume={53},
  pages={32-36}
}
  • K. Haight
  • Published 2005
  • Biology
  • Insectes Sociaux
Abstract.Colonies of the fire ant, Solenopsis invicta, can survive flood conditions by forming a raft of ants that floats on the water’s surface until the flood recedes or higher ground is found. Having been forced from the protection of their subterranean nests, rafting colonies are totally exposed and are without retreat. I tested the hypothesis that rafting S. invicta colonies would compensate for their elevated vulnerability by increasing their defensiveness. I measured defensiveness using… Expand

Figures from this paper

Aggression of Solenopsis invicta towards other ants is not affected by colony rafting
TLDR
This study explores how rafting treatments affect the aggressiveness of S. invicta individuals and colonies when confronted with other ants and reports that the venom dosage in S. Invicta increases greatly during colony rafting, which suggests that the aggressivity of S.Invicta may increase after rafting along with the increase of venom dosage. Expand
Ontogeny of the Defensive Stinging Behavior of the Fire Ant, Solenopsis invicta
  • K. Haight
  • Biology
  • Journal of Insect Behavior
  • 2007
TLDR
Defensiveness is found to increase with age initially but then decline after a mid-age peak, and it is S. invicta's mid-aged workers that are the most defensive, probably because they are both physiologically and spatially the most suitable nest defenders. Expand
Raft Formation by the Red Imported Fire Ant, Solenopsis invicta
TLDR
This study shows that ants trapped under water escape by lifting themselves to the air-water interface through the use of bubbles collected from submerged substrate, and the presence of larvae was noted to increase colony survival and maximize raft longevity. Expand
Fire ants self-assemble into waterproof rafts to survive floods
TLDR
It is found that ants can considerably enhance their water repellency by linking their bodies together, a process analogous to the weaving of a waterproof fabric, in a self-assembled hydrophobic surface. Expand
Ant Brood Function as Life Preservers during Floods
TLDR
This work investigates the position and function of different colony members, and the costs and benefits of this functional geometry in rafts of the floodplain-dwelling ant Formica selysi, and shows that workers and brood are extremely resistant to submersion. Expand
Effects of sea-level rise on physiological ecology of populations of a ground-dwelling ant
TLDR
The objective of this study is to elucidate differences in inland and coastal defensiveness via micro-dissection and comparison of head width, head length, stinger length, and venom sac volume, and to test the coastal-aggression hypothesis. Expand
A Non-lethal Water-based Removal-reapplication Technique for Behavioral Analysis of Cuticular Compounds of Ants
TLDR
It is demonstrated that cuticular compounds can be extracted from workers of the red fire ant, Solenopsis saevissima, and reapplied to the cuticle of workers from a sympatric species, Camponotus blandus, while keeping the ants alive. Expand
Risk Assessment and the Effects of Refuge Availability on the Defensive Behaviors of the Southern Unstriped Scorpion (Vaejovis carolinianus)
TLDR
Evidence that scorpions’ defensive behaviors changed based on the number of refuges and that these differences may be sex specific is found, suggesting that V. carolinianus can assess risk and features of the local environment and alter their defensive strategies accordingly. Expand
Dynamics and shape of large fire ant rafts
TLDR
This study makes two improvements on a previously reported model on the construction rate of rafts numbering between 3,000 and 10,000 individuals based upon experimental observations of randomly-directed linear ant trajectories atop the raft, and predicts more accurately the growth of large rafts. Expand
The influence of colony density , temperature and 1 illumination intensity on the aggregation of fire ant , 2 Solenopsis invicta 3
Aggregation plays a basic role in the organization of social insects, and many factors 20 including environment and individual interaction can influence this behavior. In this study, we 21Expand
...
1
2
3
...

References

SHOWING 1-10 OF 28 REFERENCES
Defensive behavior of colonies of the paper wasp, Polistes fuscatus, against vertebrate predators over the colony cycle
TLDR
The colonies of Polistes fuscatus became more aggressive over the colony cycle and the aggression levels of the colony were positively correlated with the number of reproductive-destined brood in the nest, suggesting that the brood representing direct reproductive investment affects the level of defense in the colony and not the indirect reproductive investment (worker brood). Expand
Patterns of venom synthesis and use in the fire ant, Solenopsis invicta.
  • K. Haight, W. Tschinkel
  • Biology, Medicine
  • Toxicon : official journal of the International Society on Toxinology
  • 2003
TLDR
Fire ant venom synthesis is limited to early life, and injected venom dose appears to be modulated, and economic explanations for the observed venom-use patterns are discussed. Expand
Effects of colony size and stage of development on defense response by the swarm-founding wasp Polybia occidentalis
TLDR
It is shown that defensive effort on a per capita basis decreased with increasing size across colonies, whether colony size was measured as number of adults or as investment in brood, which suggests that the cost-benefit relationship of defending the colony changes with colony size. Expand
Division of labour in colony defence against vertebrate predators by the social wasp Polistes fuscatus
  • T. Judd
  • Biology, Medicine
  • Animal Behaviour
  • 2000
TLDR
There was a pronounced division of labour in the defence against vertebrate predators within a colony and the level of aggression in colony members of P. fuscatus appears to be related to the reproductive investment of the colony. Expand
Production and Flight of Alate Red Imported Fire Ants
TLDR
Emergence of alate Solenopsis invicta Buren from several habitats in northern Florida averaged 187,000/acre/year, and first flights composed of alates which developed from the new season's brood occurred in late April and early May. Expand
A SURVEY FOR PATHOGENS OF FIRE ANTS, SOLENOPSIS SPP.,' IN THE SOUTHEASTERN UNITED STATES
In a survey conducted in the Southeastern United States, one colony in a sample of 1,007 colonies of the red imported fire ant, Solenopsis invicta Buren, was infected with a microsporidium (Protozoa:Expand
Territory area and colony size in the fire ant Solenopsis invicta
TLDR
Mound volume, which can be quickly measured without disturbing the colony, provided a reasonable estimate of colony or worker biomass and explained most of the variance in territory size. Expand
Potential Global Range Expansion of the Invasive Fire Ant, Solenopsis invicta
TLDR
A dynamic, ecophysiological model of colony growth is used to predict the potential global range expansion of this invasive species, S. invicta, which has diverse detrimental impacts on recipient communities and has the potential to colonize numerous other regions. Expand
Sociometry and Sociogenesis of Colonies of the Fire Ant Solenopsis Invicta During One Annual Cycle
TLDR
Fire ant colonies reached their annual maximum population size in midwinter and their maximum biomass in spring and declined to a midsummer minimum, showing that the transition from the ergonomic to the reproductive stages is sharp, and that colonies must grow in order to produce more sexuals. Expand
Histamine release by fire ant (Solenopsis) venom.
  • G. Read, N. Lind, C. Oda
  • Biology, Medicine
  • Toxicon : official journal of the International Society on Toxinology
  • 1978
TLDR
Hexane extracts of venom and a synthetic piperidine were as effective as the venom itself in producing histamine release, indicating that the piperidines in the venom are responsible for most of the activity. Expand
...
1
2
3
...