, Volume 145, Issue 1, pp 132–139

Size structure and substitutability in an odonate intraguild predation system

Community Ecology


Interactions between different size classes of predator species have the potential to influence survival of prey species in intraguild predation (IGP) systems, but few studies test for these effects. Using a substitutive design in a field setting, I measured the effects of two size classes of IG predators (large and small larvae of the dragonfly Anax junius) on the mortality of IG prey (larvae of the dragonfly Pachydiplax longipennis). I also examined whether combinations of large A. junius and P. longipennis and small A. junius and P. longipennis had substitutable effects on shared prey (larvae of the damselfly Ischnura verticalis). The presence of both size classes of A. junius, when alone and in combination with P. longipennis, significantly increased mortality of I. verticalis. In the presence of P. longipennis, large and small A. junius had similar effects on the mortality of I. verticalis, and effects of size-structured assemblages of A. junius were similar to the effects of each size class alone at the same density. The effects of the two size classes of A. junius on P. longipennis differed, and P. longipennis mortality was lower when exposed to size structured assemblages of A. junius than when exposed to only large A. junius at the same density. Results were similar to those in a laboratory study, although the effect of P. longipennis on I. verticalis was much lower in the field setting. These results demonstrate that interactions between different size classes of IG predators promote the survival of IG prey and highlight the importance of within-species size structure as a characteristic that may promote the coexistence of predators in IGP systems.


Risk reduction Anax Multiple predators Community ecology 


  1. Beeck P, Tauber S, Kiel S, Borcherding J (2002) 0+ perch predation on 0+ bream: a case study in a eutrophic gravel pit lake. Freshwat Biol 47:2359–2369CrossRefGoogle Scholar
  2. Bell GW, Buckel JA, Stoner AW (1999) Effects of alternative prey on cannibalism in age-1 bluefish. J Fish Biol 55:990–1000CrossRefGoogle Scholar
  3. Brabrand A (2001) Piscivory in larval perch (Perca fluviatilis): mechanisms structuring larval roach (Rutilus rutilus) cohorts. Ecol Freshwat Fish 10:97–104CrossRefGoogle Scholar
  4. Buckel JA, McKown KA (2002) Competition between juvenile striped bass and bluefish: resource partitioning and growth rate. Mar Ecol Prog Ser 234:191–204CrossRefGoogle Scholar
  5. Buckel JA, Conover DO, Steinberg ND, McKown KA (1999a) Impact of age-0 bluefish (Pomatomus saltatrix) predation on age-0 fishes in the Hudson River estuary: evidence for density-dependent loss of juvenile striped bass (Morone saxatilis). Can J Fish Aquat Sci 56:275–287CrossRefGoogle Scholar
  6. Buckel JA, Fogarty MJ, Conover DO (1999b) Foraging habits of bluefish, Pomatomus saltatrix, on the US east coast continental shelf. Fish Bull 97:758–775Google Scholar
  7. Calvert PP (1934) The rates of growth, larval development and seasonal distribution of dragonflies of the genus Anax (Odonata: Aeshnidae). PAPS 73:1–70Google Scholar
  8. Cohen JE (1989) Food webs and community structure. In: Roughgarden J, May RM, Levin SA (eds) Perspectives on ecological theory. Princeton University Press, Princeton, New Jersey, pp 181–202Google Scholar
  9. Corbet PS (1999) Dragonflies: behavior and ecology of Odonata. Cornell University Press, IthacaGoogle Scholar
  10. Crowder LB, Squires DD, Rice JA (1997) Nonadditive effects of terrestrial and aquatic predators on juvenile estuarine fish. Ecology 78:1796–1804Google Scholar
  11. Crowley PH, Hopper KR (1994) How to behave around cannibals: a density dependent dynamic game. Am Nat 143:117–154CrossRefGoogle Scholar
  12. Crowley PH, Dillon PD, Johnson DM, Watson CN (1987) Intraspecific interference among larvae in a semivoltine dragonfly population. Oecologia 71:447–456CrossRefGoogle Scholar
  13. Crumrine PW, Crowley PH (2003) Partitioning components of risk reduction in a dragonfly-fish intraguild predation system. Ecology 84:1588–1597CrossRefGoogle Scholar
  14. Diehl S (1995) Direct and Indirect effects of omnivory in a littoral lake community. Ecology 76:1727–1740CrossRefGoogle Scholar
  15. Dunkle SW (1989) Dragonflies of the Florida Peninsula, Bermuda and the Bahamas. Scientific Publishers, GainesvilleGoogle Scholar
  16. Dunkle SW (2000) Dragonflies through binoculars: a field guide to dragonflies of North America. Oxford University Press, New YorkGoogle Scholar
  17. Ebenman B, Persson L (1988) Size structured populations: ecology and evolution. Springer, Berlin, Heidelberg, New YorkGoogle Scholar
  18. Eklov P, VanKooten T (2001) Facilitation among piscivorous predators: effects of prey habitat use. Ecology 82:2486–2494Google Scholar
  19. Evans EW (1991) Intra- versus interspecific interactions of ladybeetles (Coleptera: Coccinellidae) attacking aphids. Oecologia 85:401–408CrossRefGoogle Scholar
  20. Hartman KJ (2000) The influence of size on striped bass foraging. Mar Ecol Prog Ser 194:263–268CrossRefGoogle Scholar
  21. Holt RD, Polis GA (1997) A theoretical framework for intraguild predation. Am Nat 149:745–764CrossRefGoogle Scholar
  22. Hopper KR (1998) Cannibalism and predation in larval dragonflies. Ph.D. Dissertation: School of Biological Sciences. University of Kentucky, Lexington, KentuckyGoogle Scholar
  23. Huang CF, Sih A (1991) An experimental study on the effects of salamander larvae on isopods in stream pools. Freshwat Biol 25:451–459CrossRefGoogle Scholar
  24. Johansson F (1991) Foraging modes in an assemblage of odonate larvae: effects of prey and interference. Hydrobiologia 209:79–87CrossRefGoogle Scholar
  25. Johansson F (1993) Intraguild predation and cannibalism in odonate larvae - effects on foraging behavior and zooplankton availability. Oikos 66:80–87CrossRefGoogle Scholar
  26. Johnson DM (1991) Behavioral ecology of larval dragonflies and damselflies. Trends Ecol Evol 6:8–13CrossRefGoogle Scholar
  27. Johnson DM, Crowley PH (1980) Habitat and seasonal segregation among coexisting odonate larvae. Odonatologica 9:297–308Google Scholar
  28. Johnson DM, Pierce CL, Martin TH, Watson CN, Bohanan RE, Crowley PH (1987) Prey depletion by odonate larvae: combining evidence from multiple field experiments. Ecology 68:1459–1465CrossRefGoogle Scholar
  29. Kerfoot WC, Sih A (eds) (1987) Predation: direct and indirect impacts on aquatic communities. University Press of New England, HanoverGoogle Scholar
  30. Levin SA (1992) The problem of pattern and scale in ecology. Ecology 73:1943–1967CrossRefGoogle Scholar
  31. Lima SL, Dill LM (1990) Behavioral decisions made under the risk of predation: a review and prospectus. Can J Zool 68:619–640CrossRefGoogle Scholar
  32. Losey JE, Denno RF (1998) Positive predator-predator interactions: enhanced predation rates and synergistic suppression of aphid populations. Ecology 79:2143–2152Google Scholar
  33. May ML (1992) Migrating dragonflies in North America. Argia 4:4–8Google Scholar
  34. McPeek MA (1990) Determination of species composition in the Enallagma damselfly assemblages of permanent lakes. Ecology 71:83–98CrossRefGoogle Scholar
  35. McPeek MA (1998) The consequences of changing the top predator in a food web: a comparative experimental approach. Ecol Monogr 68:1–23Google Scholar
  36. Menge BA, Sutherland JP (1987) Community regulation: variation in disturbance, competition, and predation in relation to gradients of environmental stress and recruitment. Am Nat 130:730–757CrossRefGoogle Scholar
  37. Munch SB, Conover DO (2000) Recruitment dynamics of bluefish (Pomatomus saltatrix) from Cape Hatteras to Cape Cod, 1973–1995. ICES J Mar Sci 57:393–402CrossRefGoogle Scholar
  38. Mylius SD, Klumpers K, de Roos AM, Persson L (2001) Impact of intraguild predation and stage structure on simple communities along a productivity gradient. Am Nat 158:259–276CrossRefPubMedGoogle Scholar
  39. Needham JG, Westfall MW, May ML (2000) Dragonflies of North America. Scientific Publishers, GainesvilleGoogle Scholar
  40. Oksanen L, Fretwell SJ, Arruda J, Niemela P (1981) Exploitation ecosystems in gradients of primary productivity. Am Nat 118:240–261CrossRefGoogle Scholar
  41. Okuyama T (2002) The role of antipredator behavior in an experimental community of jumping spiders with intraguild predation. Pop Ecol 44:121–125CrossRefGoogle Scholar
  42. Peckarsky BL (1991) Mechanisms of intraspecific and interspecific interference between larval stoneflies. Oecologia 85:521–529CrossRefGoogle Scholar
  43. Persson L, Eklov P (1995) Prey refuges affecting interactions between piscivorous perch and juvenile perch and roach. Ecology 76:70–81CrossRefGoogle Scholar
  44. Persson L, Bystrom P, Wahlstrom E (2000) Cannibalism and competition in Eurasian perch: population dynamics of an ontogenetic omnivore. Ecology 81:1058–1071Google Scholar
  45. Pimm S (1982) Food webs. Chapman& Hall, New York, New YorkGoogle Scholar
  46. Polis GA (1991) Complex trophic interactions in deserts - an empirical critique of food-web theory. Am Nat 138:123–155CrossRefGoogle Scholar
  47. Polis GA, McCormick S (1987) Intraguild predation and competition among desert scorpions. Ecology 68:332–343CrossRefGoogle Scholar
  48. Polis GA, Strong DR (1996) Food web complexity and community dynamics. Am Nat 147:813–846CrossRefGoogle Scholar
  49. Relyea RA (2003) How prey respond to combined predators: a review and empirical test. Ecology 84: 1827–1839CrossRefGoogle Scholar
  50. Rosenheim JA, Willhoit LR, Armer CA (1993) Influence of intraguild predation among generalist predators on the suppression of an herbivore population. Oecologia 108:439–449CrossRefGoogle Scholar
  51. Ross QE (1971) The effect of intraspecific interactions on the growth and feeding behavior of Anax junius (Drury) naiads. Ph.D. Dissertation, Department of Zoology. Michigan State University, East Lansing, MichiganGoogle Scholar
  52. Russell RW, May ML, Soltesz KL, Fitzpatrick JW (1998) Massive swarm migrations of dragonflies. Am Midl Nat 140:325–336CrossRefGoogle Scholar
  53. Schmitz OJ (1998) Direct and indirect effects of predation and predation risk in old-field interaction webs. Am Nat 151:327–342CrossRefPubMedGoogle Scholar
  54. Schmitz OJ (2002) Linearity in the aggregate effects of multiple predators in a food web. Ecol Lett 5:168–172CrossRefGoogle Scholar
  55. Schmitz OJ, Suttle KB (2001) Effects of top predator species on direct and indirect interactions in a food web. Ecology 82:2072–2081Google Scholar
  56. Schoener TW (1989) Food webs from the small to large. Ecology 70:1559–1589CrossRefGoogle Scholar
  57. Sih A, Crowley P, McPeek M, Petranka J, Strohmeirer K (1985) Predation, competition, and prey communities: a review of field experiments. Annu Rev of Ecol and Syst 16:269–311CrossRefGoogle Scholar
  58. Sih A, Englund G, Wooster D (1998) Emergent impacts of multiple predators on prey. Trends Ecol Evol 13:350–355CrossRefGoogle Scholar
  59. Sokol-Hessner L, Schmitz OJ (2002) Aggregate effects of multiple predator species on a shared prey. Ecology 83:2367–2372CrossRefGoogle Scholar
  60. Soluk DA (1993) Multiple predator effects: predicting combined functional response of stream fish and invertebrate predators. Ecology 74:219–225CrossRefGoogle Scholar
  61. Soluk DA, Collins NC (1988) Synergistic interactions between fish and stoneflies: facilitation and interference between stream predators. Oikos 52:94–100CrossRefGoogle Scholar
  62. Swisher BJ, Soluk DA, Wahl DH (1998) Non-additive predation in littoral habitats: influences of habitat complexity. Oikos 81:30–37CrossRefGoogle Scholar
  63. Trottier R (1966) The emergence and sex ratio of Anax junius Drury (Odonata:Aeshnidae) in Canada. Can Entomol 98:794–798CrossRefGoogle Scholar
  64. Trottier R (1971) Effect of temperature on the life-cycle of Anax junius Drury (Odonata:Aeshnidae) in Canada. Can Entomol 103:1671–1683Google Scholar
  65. Van Buskirk J (1992) Competition, cannibalism, and size class dominance in a dragonfly. Oikos 65:455–464CrossRefGoogle Scholar
  66. Werner EE, Gilliam JF (1984) The ontogenetic niche and species interactions in size-structured populations. Annu Rev Ecol Syst 15:393–425CrossRefGoogle Scholar
  67. Westfall MJ, May ML (1996) Damselflies of North America. Scientific Publishers, GainesvilleGoogle Scholar
  68. Wissinger SA (1988) Life history and size structure of larval dragonfly populations. J N Am Benthol Soc 7:13–28CrossRefGoogle Scholar
  69. Wissinger SA (1989) Seasonal variation in the intensity of competition and predation among dragonfly larvae. Ecology 70:1017–1027CrossRefGoogle Scholar
  70. Wissinger SA (1992) Niche overlap and the potential for competition and intraguild predation between size-structured populations. Ecology 73:1431–1444CrossRefGoogle Scholar
  71. Wissinger SA, McGrady J (1993) Intraguild predation and competition between larval dragonflies - direct and indirect effects on shared prey. Ecology 74:207–218CrossRefGoogle Scholar
  72. Young AM (1967) The flying season and emergence period of Anax junius in Illinois (Odonata:Aeshnidae). Can Entomol 99:886–890Google Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Department of BiologyUniversity of KentuckyLexingtonUSA
  2. 2.Department of Natural SciencesLongwood UniversityFarmvilleUSA

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