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Marine Biology

, Volume 56, Issue 4, pp 301–310 | Cite as

Effects of Polinices duplicatus (Gastropoda: Naticidae) on infaunal community structure at Barnstable Harbor, Massachusetts, USA

  • W. I. Wiltse
Article

Abstract

Effects of the predatory naticid snail Polinices duplicatus (Say) on species composition, diversity and density, of the infauna of intertidal sand-flats at Barnstable Harbor, Massachusetts, USA, were studied using field experiments. Responses of molluscs (prey of P. duplicatus) and nonmolluscs (nonprey) were considered separately to distinguish between the effects of feeding and sediment disturbance during foraging. The fauna of 0.25 m2 predator-exclusion cages, coarse-mesh cages, sieved areas, and controls was followed for 1 yr. Species associations within cages from which predators were excluded were denser, more diverse, and richer in molluscs than those in other treatments. Larger areas (3×3 m) of natural bottom were fenced and maintained as snail exclosures and enclosures during two feeding seasons. For both molluscs and nonmolluscs, diversity (H'), number of species, evenness (SD), and density all decreased with increasing snail density. Intense predation pressure on molluscs and selective feeding on thin-shelled bivalves, which were rare, removed individuals and species of molluscs from the community. Comparison of samples taken inside and outside trails made by snails showed that disturbance of the surface sediment layers by snails decreased the abundance of spionid polychaetes and total nonmolluscs. The sipunculan Phascolopsis gouldi and the bivalve Gemma gemma dominated the community in all experimental treatments and were little affected by the activity of Polinices duplicatus. Predation and disturbance by snails lowered community diversity by removing individuals of the less abundant species, and generally maintained population densities below the level where strong competition would occur.

Keywords

Bivalve Polychaete Gastropoda Selective Feeding Snail Density 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

  1. Addicott, J. F.: Predation and prey community structure: an experimental study of the effect of mosquito larvae on the protozoan communities of pitcher plants. Ecology 55, 475–492 (1974)Google Scholar
  2. Blegvad, H.: Quantitative investigations of bottom invertebrates in the Limfjord 1910–1927 with special reference to plaice food. Rep. Dan. biol. Stn 34, 33–52 (1928)Google Scholar
  3. Dean, D. and H. H. Haskin: Benthic repopulation of the Raritan River Estuary following pollution abatement. Limnol. Oceanogr. 9, 551–563 (1964)Google Scholar
  4. Edwards, D. C.: Preferred prey of Polinices duplicatus in Cape Cod inlets. Bull. Am. malac. Un. 40, 17–20 (1975)Google Scholar
  5. Edwards, D. C. and J. D. Huebner: Feeding and growth rates of Polinices duplicatus preying on Mya arenaria at Barnstable Harbor, Massachusetts. Ecology 58, 1218–1236 (1977)Google Scholar
  6. Fager, E. W.: Determination and analysis of recurrent groups. Ecology 38, 586–595 (1957)Google Scholar
  7. Fager, E. W.: Diversity: A sampling study. Am. Nat. 106, 293–309 (1972)Google Scholar
  8. Folk, R. L.: Petrology of sedimentary rocks, 170 pp. Austin, Texas: Hemphill's 1968Google Scholar
  9. Glynn, P. W.: Some physical and biological determinants of coral community structure in the eastern Pacific. Ecol. Monogr. 46, 431–456 (1976)Google Scholar
  10. Grant, D. C.: Specific diversity in the infauna of an intertidal sand community, 53 pp. Ph.D. thesis, Yale University, New Haven 1965Google Scholar
  11. Grassle, J. F. and J. P. Grassle: Opportunistic life histories and genetic systems in marine benthic polychaetes. J. mar. Res. 32, 253–283 (1974)Google Scholar
  12. Harper, J. L.: The role of predation in vegetational diversity. Brookhaven Symp. Biol. 22, 48–61 (1969)Google Scholar
  13. Hutcheson, K.: A test for comparing diversities based on the Shannon formula. J. theor. Biol. 29, 151–154 (1970)Google Scholar
  14. Lubchenco, J.: Plant species diversity in a marine intertidal community: importance of herbivore food preference and algal competitive abilities. Am. Nat. 112, 23–39 (1978)Google Scholar
  15. Lubchenco, J. and B. A. Menge: Community development and persistence in a low rocky intertidal zone. Ecol. Monogr. 48, 67–94 (1978)Google Scholar
  16. MacArthur, R. H. and E. O. Wilson: The theory of island biogeography, 203 pp. Princeton, New Jersey: Princeton University Press 1967Google Scholar
  17. Menge, B. A.: Organization of the New England rocky intertidal community: role of predation, competition, and environmental heterogeneity. Ecol. Monogr. 46, 355–393 (1976)Google Scholar
  18. Menge, B. A. and J. P. Sutherland: Species diversity gradients: synthesis of the roles of predation, competition, and temporal heterogeneity. Am. Nat. 110, 351–369 (1976)Google Scholar
  19. Morgans, J. F. C.: Notes on the analysis of shallow-water soft substrata. J. Anim. Ecol. 25, 367–387 (1956)Google Scholar
  20. Naqvi, S. M. Z.: Effects of predation on infaunal invertebrates of Alligator Harbor, Florida. Gulf Res. Rep. 2, 313–321 (1968)Google Scholar
  21. Orth, R. J.: The importance of sediment stability in seagrass communities. In: Ecology of marine benthos, pp 281–300. Ed. by B. C. Coull. Columbia, S.C.: University of South Carolina Press 1977Google Scholar
  22. Paine, R. T.: Food web complexity and species diversity. Am. Nat. 100, 65–75 (1966)Google Scholar
  23. Paine, R. T.: A short-term experimental investigation of resource partitioning in a New Zealand rocky intertidal habitat. Ecology 52, 1096–1106 (1971)Google Scholar
  24. Paine, R. T.: Intertidal community structure: experimental studies on the relationship between a dominant competitor and its principal predator. Oecologia 15, 93–120 (1974)Google Scholar
  25. Patrick, R.: Benthic stream communities. Am. Sci. 58, 546–549 (1970)Google Scholar
  26. Peterson, C. H.: Competitive organization of the soft-bottom macrobenthic communities of southern California lagoons. Mar. Biol. 43, 343–359 (1977)Google Scholar
  27. Peterson, C. H.: The importance of predation and competition in organizing the intertidal epifaunal communities of Barnegat Inlet, New Jersey: Oecologia 39, 1–24 (1979a)Google Scholar
  28. Peterson, C. H.: Predation, competitive exclusion, and diversity in the soft-sediment benthic communities of estuaries and lagoons. In: Ecological processes in coastal and marine systems, pp 233–264. Ed. by R. J. Livingston. New York: Plenum Press 1979bGoogle Scholar
  29. Reise, K.: Predator exclusion experiments in an intertidal mud flat. Helgoländer wiss. Meeresunters. 30, 263–271 (1977a)Google Scholar
  30. Reise, K.: Predation pressure and community structure of an intertidal soft-bottom fauna. In: Biology of benthic organisms, pp 513–519. Ed. by B. F. Keegan, P. O. Ceidigh and P. J. S. Boaden. New York: Pergamon Press 1977bGoogle Scholar
  31. Rhoads, D. C. and D. K. Young: The influence of deposit-feeding organisms on sediment stability and community trophic structure. J. mar. Res. 28, 150–178 (1970)Google Scholar
  32. Russell-Hunter, W. D. and D. C. Grant: Estimates of population density and dispersal in the naticid gastropod, Polinices duplicatus, with a discussion of computational methods. Biol. Bull. mar. biol. Lab., Woods Hole 131, 292–307 (1966)Google Scholar
  33. Sellmer, G. P.: Functional morphology and ecological life history of the gem clam, Gemma gemma (Eulamellibranchia: Veneridae). Malacologia 5, 137–223 (1967)Google Scholar
  34. Shannon, C. E. and W. Weaver: The mathematical theory of communication, 117 pp. Urbana, Illinois: University of Illinois Press 1949Google Scholar
  35. Virnstein, R. W.: The importance of predation by crabs and fishes on benthic infauna in Chesapeake Bay. Ecology 58, 1199–1217 (1977)Google Scholar
  36. Virnstein, R. W.: Predation on estuarine infauna: response patterns of component species. Estuaries 2, 69–86 (1979)Google Scholar
  37. Whitlatch, R. B.: Seasonal changes in the community structure of the macrobenthos inhabiting the intertidal sand and mud flats of Barnstable Harbor, Massachusetts. Biol. Bull. mar. biol. Lab., Woods Hole 152, 275–294 (1977)Google Scholar
  38. Wiltse, W.: Effects of predation by Polinices duplicatus on community structure, 130 pp. Ph. D. thesis, University of Massachusetts, Amherst 1978Google Scholar
  39. Wiltse, W.: Predation by juvenile Polinices duplicatus (Say) on Gemma gemma (Totten). J. exp. mar. Biol. Ecol 42, 187–199 (1980)Google Scholar
  40. Woodin, S. A.: Polychaete abundance patterns in a marine softsediment environment: the importance of biological interactions. Ecol. Monogr. 44, 171–187 (1974)Google Scholar
  41. Woodin, S. A.: Adult-larval interactions in dense infaunal assemblages: patterns of abundance. J. mar. Res. 34, 25–41 (1976)Google Scholar
  42. Woodin, S. A.: Refuges, disturbance, and community structure: a marine soft-bottom example. Ecology 59, 274–284 (1978)Google Scholar

Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • W. I. Wiltse
    • 1
  1. 1.Department of ZoologyUniversity of MassachusettsAmherstUSA

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