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Behavioral Ecology and Sociobiology

, Volume 54, Issue 5, pp 441–450 | Cite as

Rules of supply and demand regulate recruitment to food in an ant society

  • Deby CassillEmail author
Original Article

Abstract

The process by which ant scouts move a group of nestmates toward a newly discovered food site is called recruitment. In this paper, I report on the interactions between scouts and nestmates that result in a graded recruitment response to graded food quality in the fire ant, Solenopsis invicta. Twelve experimental groups composed of 100 fire ant workers and 50 fire ant larvae were established (three experimental groups per colony × four stock colonies). Each experimental group was placed in a shallow, artificial nest with a glass cover. After a 48-h period of food deprivation, experimental groups were exposed to one of three concentrations of sugar water. Behavioral interactions between scouts and nestmates in each group were videotaped at 10× magnification for 20 min. Detailed behavioral data on a total of 120 scouts (10 scouts per experimental group) and ~1,000 nestmates (~90 nestmates per experimental group) were transcribed from the videotapes using standard play and frame-by-frame techniques. Throughout the recruitment process, scouts employed six discrete behaviors to inform nestmates of the location and quality of a food site. Scouts laid incoming trails, waggled their heads, increased walking tempo, stroked nestmates with their antennae, advertised with a brief food display, and led groups of nestmates to the food site by laying outgoing trails. In turn, nestmates assessed the food sample with antennae, then responded to or resisted recruitment based on the quality of food advertised, their employment status and their level of hunger. In summary, recruitment was an emergent property based on competent supply and demand decisions made face-to-face inside the nest rather than on the trail or at the food site.

Keywords

Cooperation Animal intelligence Economics Nutrition Self-organization 

Notes

Acknowledgements

I thank Abhi Deshmukh and Ivan Chase for inspiring, respectively, the idea and design for this study. Walter Tschinkel and S. Bradleigh Vinson are thanked for the use of their research laboratories for video and sound recordings of fire ants. I thank Steve Rauth for his invaluable assistance in gathering the acoustical data on the fire ant head waggle, and Elizabeth Bernays, Diana Wheeler, Edward Vargo, Jonathan Cnaani and five anonymous referees for critical reviews of this manuscript. Lastly, I thank Jürgen Heinze for his patience and excellent editing of the manuscript. Experiments comply with the current laws of the country in which they were performed. This project was funded in part by Arizona's Center for Insect Science, NIH Grant I-T32-A107475 and by the Texas Imported Fire Ant Research and Management Plan initiative (http://fireant.tamu.edu).

References

  1. Banks WA, Lofgren CS, Jouvenez DP, Stringer CE, Bishop PM, Williams DF, Wojcik DP, Glancey BM (1981) Techniques for rearing, collecting and handling imported fire ants. USDA SEA Agric Technol South Ser 21:1–9Google Scholar
  2. Baroni-Urbani C, Buser MW, Schilliger E (1988) Substrate vibration during recruitment in ant social organization. Insectes Soc 35:241–250Google Scholar
  3. Beckers R, Deneubourg JL, Goss S (1992) Trail laying behaviour during food recruitment in the ant Lasius niger (L.). Insectes Soc 39:59–72Google Scholar
  4. Cammaerts M-C, Cammaerts R (1980) Food recruitment strategies of the ants Myrmica sabuleti and Myrmica ruginodis. Behav Process 5:251–270CrossRefGoogle Scholar
  5. Cassill DL (2002) Yoyo-bang: a risk-aversion investment strategy by a perennial insect society. Oecologia 132:150–158CrossRefGoogle Scholar
  6. Cassill DL, Tschinkel WR (1995) Allocation of liquid food to larvae via trophallaxis in colonies of the fire ant, Solenopsis invicta. Anim Behav 50:801–813Google Scholar
  7. Cassill DL, Tschinkel WR (1999) Task selection by workers of the fire ant, Solenopsis invicta. Behav Ecol Sociobiol 45:301–310Google Scholar
  8. Cassill DL, Tschinkel WR, Vinson SB (2002) Nest complexity, group size and brood rearing in the fire ant, Solenopsis invicta. Insectes Soc 49:158–163CrossRefGoogle Scholar
  9. Cole BJ (1991) Short-term activity cycles in ants: generation of periodicity by worker interaction. Am Nat 137:244–259CrossRefGoogle Scholar
  10. Crawford DL, Rissing SW (1983) Regulation of recruitment by individual scouts in Formica oreas Wheeler (Hymenoptera, Formicidae). Insectes Soc 30:177–183Google Scholar
  11. De Biseau JC, Pasteels JM (1994) Regulated food recruitment through individual behavior of scouts in the ant, Myrmica sabuleti (Hymenoptera: Formicidae). J Insect Behav 7:767–777Google Scholar
  12. Deneubourg JL, Aron S, Pasteels JM (1990) The self-organizing exploratory pattern of the Argentine ant. J Insect Behav 3:159–168Google Scholar
  13. Farina WM (1996) Food-exchange by foragers in the hive—a means of communication among honeybees? Behav Ecol Sociobiol 38:59–64Google Scholar
  14. Gordon D (1999) Ants at work: how an insect society is organized. Free Press, New YorkGoogle Scholar
  15. Gordon D, Paul RE, Thorpe K (1993) What is the function of encounter patterns in ant colonies? Anim Behav 45:1083–1100Google Scholar
  16. Grasso DA, Mori A, Le Moli F (1998) Chemical communication during foraging in the harvesting ant Messor capitatus (Hymenoptera, Formicidae). Insectes Soc 45:85–96CrossRefGoogle Scholar
  17. Hangartner W (1969). Structure and variability of the individual odor trail in Solenopsis geminata Fabr. (Hymenoptera, Formicidae). Z Vergl Physiol 62:111–120Google Scholar
  18. Herbers JM (1981) Time resources and laziness in animals. Oecologia 49:252–262Google Scholar
  19. Hölldobler B (1971) Recruitment behavior in Camponotus socius (Hymenoptera: Formicidae). Z Vergl Physiol 75:123–142Google Scholar
  20. Hölldobler B (1985) Liquid food transmission and antennation signals in ponerine ants. Isr J Entomol 14:89–99Google Scholar
  21. Hölldobler B (1995) The chemistry of social regulation: multicomponent signals in ant societies. Proc Natl Acad Sci USA 92:19–22PubMedGoogle Scholar
  22. Hölldobler B (1999) Multimodal signals in ant communication. J Comp Physiol A 184:129–141CrossRefGoogle Scholar
  23. Hölldobler B, Carlin NF (1987) Anonymity and specificity in the chemical communication signals of social insects. J Comp Physiol A 161:567–581Google Scholar
  24. Hölldobler B, Wilson EO (1990) The ants. Belknap Press of Harvard University Press, Cambridge, Mass.Google Scholar
  25. Jessen K, Maschwitz U (1985) Individual specific trails in the ant Pachycondyla tesserinoda (Formicidae, Ponerinae). Naturwissenschaften 72:549–500Google Scholar
  26. Jessen K, Maschwitz U (1986) Orientation and recruitment behavior in the ponerine ant Pachycondyla tesserinoda (Emery): laying of individual-specific trails during tandem running. Behav Ecol Sociobiol 19:151–155Google Scholar
  27. Kirchner WH, Towne WF (1994) The sensory basis of the honeybee's dance language. Sci Am 270:74–80Google Scholar
  28. Liefke C, Holldober B, Maschwitz U (2001) Recruitment behavior in the ant genus Polyrhachis (Hymenoptera, Formicidae). J Insect Behav 14:637–659CrossRefGoogle Scholar
  29. Markl H, Hölldobler B (1978) Recruitment and food-retrieving behavior in Novomessor (Formicidae, Hymenoptera). Behav Ecol Sociobiol 4:183–216Google Scholar
  30. Maschwitz U, Lenz S, Buschinger A (1986) Individual specific trails in the ant Leptothorax affinis (Formicidae: Myrmicinae). Experientia 42:1173–1174Google Scholar
  31. Möglich M (1978) Social organization of nest emigration in Leptothorax (Hym., Form.). Insectes Soc 25:205–225Google Scholar
  32. Möglich M, Hölldobler B (1975) Communication and orientation during foraging and emigration in the ant Formica fusca. J Comp Physiol A 101:275–288Google Scholar
  33. Möglich M, Maschwitz U, Hölldobler B (1974) Tandem calling: a new kind of signal in ant communication. Science 186:1046–1047PubMedGoogle Scholar
  34. Morgan ED (1984) Chemical words and phrases in the language of pheromones for foraging and recruitment. In: Lewis T (ed) Insect communication. Academic, London pp 169–194Google Scholar
  35. Oster GF, Wilson EO (1978) Caste and ecology in the social insects. Princeton University Press, Princeton, N.J.Google Scholar
  36. Partan SR (2003) Multisensory animal communication. In: Calvert G, Spence C, Stein B (eds) Handbook of multisensory processing. MIT Press, Cambridge, Mass. (in press)Google Scholar
  37. Pasteels JM, Deneubourg JL, Goss S (1987) Self-organization mechanisms in ant societies (I): Trail recruitment to newly discovered food sources. In: Pasteels JM, Deneubourg JL (eds) From individual to collective behavior in social insects. Birkhäuser, Basel, pp155–176Google Scholar
  38. Porter SD (1998) Biology and behavior of Pseudacteon decapitating flies (Diptera: Phoridae) that parasitize Solenopsis fire ants (Hymenoptera: Formicidae). Fla Entomol 81:292–309Google Scholar
  39. Roces F, Hölldobler B (1996) Use of stridulation in foraging leaf-cutting ants: mechanical support during cutting or short-range recruitment signal? Behav Ecol Sociobiol 39:293–299Google Scholar
  40. Roces F, Nuñez JA (1993) Information about food quality influences load-size selection in recruited leaf-cutting ants. Anim Behav 45:135–143CrossRefGoogle Scholar
  41. Sall J, Lehman A (1996) JMP Start Statistics: a guide to statistical and data analysis using JMP and JMP IN software. Duxbury, AlbanyGoogle Scholar
  42. Schmid-Hempel P (1991) The ergonomics of worker behavior in social Hymenoptera. Adv Stud Behav 20:87–134Google Scholar
  43. Sorensen AA, Busch TM, Vinson SB (1985) Control of food influx by temporal subcastes in the fire ant Solenopsis invicta. Behav Ecol Sociobiol 17:191–198Google Scholar
  44. Stuart RJ, Moffett MW (1994) Recruitment communication and pheromone trails in the Neotropical ants, Leptothorax (Nesomyrmex) spininodis and L. (N.) echinatinodis. Experientia 50:850–852Google Scholar
  45. Sudd JH, Franks NR (1987) The behavioural ecology of ants. Chapman and Hall, New YorkGoogle Scholar
  46. Szlep-Fessel R (1970) The regulatory mechanism in mass foraging and the recruitment of soldiers. Pheidole. Insectes Soc 17:233–244Google Scholar
  47. Tennant LE, Porter SD (1991) Comparison of diets of two fire ant species (Hymenoptera: Formicidae): solid and liquid components. J Entomol Sci 26:450–465Google Scholar
  48. Traniello JF (1977) Resource assessment, recruitment behavior, and organization of cooperative prey retrieval in the ant Formica schaufussi (Hymenoptera). J Insect Behav 11:1–22Google Scholar
  49. Tschinkel WR (1993) The fire ant ( Solenopsis invicta): Still unvanquished. In: McKnight BN (ed) Biological pollution: the control and impact of invasive exotic species. Indiana Academy of Science Press, Indianapolis, Ind. pp 121–136Google Scholar
  50. Vander Meer RK (1988) Behavioral and chemical hierarchy in the recruitment of fire ants: species-specificity and population dynamics. Proc 18th Int Congr Entomol 232Google Scholar
  51. Vander Meer RK, Lofgren CS, Alvarez FM (1990) The orientation inducer pheromone of the fire ant Solenopsis invicta. Physiol Entomol 15:483–488Google Scholar
  52. Vinson SB (1997) Invasion of the red imported fire ant (Hymenoptera: Formicidae): spread, biology and impact. Am Entomol 43:23–39Google Scholar
  53. Wilson EO (1959) Source and possible nature of the odor trail of the fire ant Solenopsis saevissima (Fr. Smith). Science 129:643–644Google Scholar
  54. Wilson EO (1962a) Chemical communication among workers of the fire ant Solenopsis saevissima (Fr. Smith) 1. The organization of mass-foraging. Anim Behav 10:134–147Google Scholar
  55. Wilson EO (1962b) Chemical communication among workers of the fire ant Solenopsis saevissima (Fr. Smith) 3. The experimental induction of social responses. Anim Behav 10:159–164Google Scholar
  56. Wilson EO (1971) The insect societies. Harvard University Press, Cambridge, Mass.Google Scholar
  57. Wilson EO, Hölldobler B (1988) Dense heterarchies and mass communication as the basis of organization in ant colonies. Trends Ecol Evol 3:65–68Google Scholar
  58. Wilson NL, Oliver AD (1969) Food habits of the imported fire ant in pasture and pine forest areas in Southeastern Louisiana. J Econ Entomol 62:1268–1272Google Scholar

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  1. 1.Department of ESP-BiologyUSF St. PetersburgSt. PetersburgUSA

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