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Postmortem changes in strength of gastropod shells: evolutionary implications for hermit crabs, snails, and their mutual predators

Published online by Cambridge University Press:  08 February 2016

Michael LaBarbera
Affiliation:
Department of Organismal Biology and Anatomy, The University of Chicago, 1025 East 57th Street, Chicago, Illinois 60637
Rachel Ann Merz
Affiliation:
Department of Biology, Swarthmore College, Swarthmore, Pennsylvania 19081

Abstract

Calliostoma ligatum shells inhabited by hermit crabs were weaker than shells inhabited by snails collected at the same locality. When shells of C. ligatum were loaded repetitively to 80% of their predicted failure load, hermit crab-inhabited shells showed an immediate drop in shell strength followed by a progressive further loss of shell strength over the next 18 days. Snailinhabited C. ligatum shells exhibited a decrease in strength after 9 days, but returned to initial values within 18 days of loading.

Hermit crabs thus bear shells significantly weaker than they were when borne by the gastropods that produced them. Reported similarities in vulnerability of gastropods and hermit crabs to shell-crushing predators may be artifacts of the metric (critical size) used to compare vulnerabilities. Hermit crabs probably were a significant factor in the diversification of durophagous predators in the Mesozoic, supplying a prey base identical in size and shape to gastropods but with significantly lower resistance to crushing. The unpredictability of strength in hermit-crab inhabited shells may maintain the apparently inefficient indiscriminate attacks common among durophagous predators.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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References

Literature Cited

Abrams, P. A. 1986. Adaptive responses of predators to prey and prey to predators: the failure of the arms-race analogy. Evolution 40:12291247.Google ScholarPubMed
Bertness, M. D. 1981. Predation, physical stress, and the organization of a tropical rocky intertidal hermit crab community. Ecology 62:411425.CrossRefGoogle Scholar
Bertness, M. D. 1982. Shell utilization, predation pressure, and thermal stress in Panamanian hermit crabs: an interoceanic comparison. Journal of Experimental Marine Biology and Ecology 64:159187.CrossRefGoogle Scholar
Bertness, M. D., and Cunningham, C. 1981. Crab shell-crushing predation and gastropod architectural defense. Journal of Experimental Marine Biology and Ecology 50:213230.CrossRefGoogle Scholar
Bertness, M. D., Garrity, S. D., and Levings, S. C. 1981. Predation pressure and gastropod foraging: a tropical-temperate comparison. Evolution 35:9951007.Google ScholarPubMed
Blundon, J. A., and Vermeij, G. J. 1983. Effect of shell repair on shell strength in the gastropod Littorina irrorata. Marine Biology 76:4145.CrossRefGoogle Scholar
Conover, M. R. 1975. Prevention of shell burial as a benefit hermit crabs provide to their symbionts (Decapoda, Paguridea). Crustaceana 29:311313.CrossRefGoogle Scholar
Cummins, H., Powell, E. N., Stanton, R. J. Jr., and Staff, G. 1986. The rate of taphonomic loss in modern benthic habitats: how much of the potentially preservable community is preserved? Palaeogeography, Palaeoclimatology, Palaeoecology 52:291320.CrossRefGoogle Scholar
Currey, J. D. 1980. Mechanical properties of mollusc shell. Symposium of the Society for Experimental Biology 34:7597.Google ScholarPubMed
Currey, J. D. 1988. Shell form and strength. Pp. 183210in Trueman, E. R. and Clarke, M. R., eds. The Mollusca. Vol. 11. Form and function. Academic Press, New York.Google Scholar
Garrity, S. D., Levings, S. C., and Caffey, H. M. 1986. Spatial and temporal variation in shell crushing by fishes on rocky shores of Pacific Panama. Journal of Experimental Marine Biology and Ecology 103:131142.CrossRefGoogle Scholar
Herrnkind, W. F., Vanderwalker, J. A., and Barr, L. 1975. Population dynamics, ecology and behavior of spiny lobsters, Panulirus argus, of St. John, U.S.V.I. (IV) habitation patterns of movement and general behavior. Pp. 3145in Earle, S. A. and Lavenberg, R. J., eds. Results of the Tektite Program: coral reef invertebrates and plants. Vol II. Science Bulletin 20 (Los Angeles)Natural History Museum of Los Angeles County, Los Angeles.Google Scholar
Hughes, R. N., and Elner, R. W. 1979. Tactics of a predator. Carcinus maenas, and morphological responses of the prey, Nucella lapillus. Journal of Animal Ecology 48:6578.CrossRefGoogle Scholar
Jackson, A. P., Vincent, J. F. V., and Turner, R. M. 1988. The mechanical design of nacre. Proceedings of the Royal Society of London B 234:415440.Google Scholar
LaBarbera, M. 1981. The ecology of Mesozoic Gryphaea, Exogyra, and Ilymatogyra (Bivalvia: Mollusca) in a modern ocean. Paleobiology 7:510526.CrossRefGoogle Scholar
LaBarbera, M. 1989. Analyzing body size as a factor in ecology and evolution. Annual Review of Ecology and Systematics 20:97117.CrossRefGoogle Scholar
Laws, E. A., and Archie, J. W. 1981. Appropriate use of regression analysis in marine biology. Marine Biology 65:1316.CrossRefGoogle Scholar
Lawton, P., and Hughes, R. N. 1985. Foraging behaviour of the crab Cancer pagurus feeding on the gastropods Nucella lapillus and Littorina littorea: comparisons with optimal foraging theory. Marine Ecology Progress Series 27:143154.CrossRefGoogle Scholar
McLean, R. 1983. Gastropod shells: a dynamic resource that helps shape benthic community structure. Journal of Experimental Marine Biology and Ecology 69:151174.CrossRefGoogle Scholar
Meenakshi, V. R., Blackwelder, P. L., and Wilbur, K. M. 1973. An ultrastructural study of shell regeneration in Mytilus edulis (Mollusca: Bivalvia). Journal of Zoology, London 171:475484.CrossRefGoogle Scholar
Mesce, K. A. 1982. Calcium-bearing objects elicit shell selection behavior in a hermit crab. Science (Washington, D.C.) 215:993995.CrossRefGoogle Scholar
Miller, D. J., and LaBarbera, M. 1990. The effect of foliate varices on gastropod shell strength and the work of fracture. Geological Society of American Abstracts with Program 22:A36.Google Scholar
Moir, B. G. 1990. Comparative studies of “fresh” and “aged” Tridacna gigas shell: preliminary investigations of a reported technique for pretreatment of tool material. Journal of Archaeological Research 17:329345.Google Scholar
Ortega, S. 1986. Fish predation on gastropods on the Pacific coast of Costa Rica. Journal of Experimental Marine Biology and Ecology 97:181191.CrossRefGoogle Scholar
Palmer, A. R. 1979. Fish predation and evolution of gastropod shell sculpture: experimental and geographic evidence. Evolution 33:697713.CrossRefGoogle ScholarPubMed
Palmer, A. R. 1990. Predator size, prey size, and the scaling of vulnerability: hatchling gastropods vs. barnacles. Ecology 71:759775.CrossRefGoogle Scholar
Randall, J. E. 1967. Food habits of reef fishes of the West Indies. Studies in Tropical Oceanography 5:665847.Google Scholar
Reed-Miller, C. 1983a. The initial calcification process in shell-regenerating Tegula (Archaeogastropoda). Biological Bulletin 165:265275.CrossRefGoogle Scholar
Reed-Miller, C. 1983b. Scanning electron microscopy of the regenerated shell of the marine archaeogastropod, Tegula. Biological Bulletin 165:723732.CrossRefGoogle ScholarPubMed
Rossi, A. C., and Parisi, V. 1973. Experimental studies of predation by the crab Eriphia verrucosa on both snail and hermit crab occupants of conspecific gastropod shells. Bollettino di Zooligia 40:117135.CrossRefGoogle Scholar
Shoup, J. B. 1968. Shell opening by crabs of the genus Calappa. Science (Washington, D.C.) 160:887888.CrossRefGoogle ScholarPubMed
Spight, T. M. 1977. Availability and use of shells by intertidal hermit crabs. Biological Bulletin 152:120133.CrossRefGoogle Scholar
Stachowitsch, M. 1980. The epibiotic and endolithic species associated with the gastropod snails and inhabited by the hermit crabs Paguristes oculatus and Pagurus cuanensis. Marine Ecology 1:73104.CrossRefGoogle Scholar
Vermeij, G. J. 1976. Interoceanic differences in vulnerability of shelled prey to gastropod predation. Nature (London) 260:135136.CrossRefGoogle Scholar
Vermeij, G. J. 1977. The Mesozoic marine revolution: evidence from snails, predators and grazers. Paleobiology 3:245258.CrossRefGoogle Scholar
Vermeij, G. J. 1978. Biogeography and adaptation. Harvard University Press, Cambridge, Mass.Google Scholar
Vermeij, G. J. 1979. Shell architecture and causes of death of Micronesian reef snails. Evolution 33:686696.CrossRefGoogle ScholarPubMed
Vermeij, G. J. 1982a. Gastropod shell form, breakage, and repair in relation to predation by the crab Calappa. Malacologia 23:112.Google Scholar
Vermeij, G. J. 1982b. Unsuccessful predation and evolution. American Naturalist 120:701720.CrossRefGoogle Scholar
Vermeij, G. J. 1987. Evolution and escalation. Princeton University Press, Princeton, N.J.CrossRefGoogle Scholar
Vermeij, G. J. 1989. Interoceanic differences in adaptation: effects of history and productivity. Marine Ecology Progress Series 57:293305.CrossRefGoogle Scholar
Vermeij, G. J., and Currey, J. D. 1980. Geographical variation in the strength of thaidid snail shells. Biological Bulletin 158:383389.CrossRefGoogle Scholar
Wainwright, P. C. 1987. Biomechanical limits to ecological performance: mollusc-crushing by the Caribbean hogfish, Lachnolaimus maximus (Labridae). Journal of Zoology, London 213:283297.CrossRefGoogle Scholar
Walker, S. E. 1988. Taphonomic significance of hermit crabs (Anomura: Paguridea): epifaunal hermit crab-infaunal gastropod example. Palaeogeography, Palaeoclimatology, Palaeoecology 63:4571.CrossRefGoogle Scholar
Walker, S. E. 1989. Hermit crabs as taphonomic agents. Palaios 4:439452.CrossRefGoogle Scholar
Wilber, T. P. Jr., and Herrnkind, W. F. 1982. Rate of shell acquisition by hermit crabs in a salt marsh habitat. Journal of Crustacean Biology 2:588592.CrossRefGoogle Scholar
Wilber, T. P. Jr., and Herrnkind, W. F. 1984. Predaceous gastropods regulate new-shell supply to salt marsh hermit crabs. Marine Biology 79:145150.CrossRefGoogle Scholar
Zipser, E., and Vermeij, G. J. 1978. Crushing behavior of tropical and temperate crabs. Journal of Experimental Marine Biology and Ecology 31:155172.CrossRefGoogle Scholar