Abstract
Patterns of reproductive effort were examined both within and between 4 species of the tropical marine gastropod genus Conus from Hawaii in 1979. Caloric content was measured for the somatic tissues of female cone shells and for their egg capsule masses. These data were used to calculate (1) current reproductive effort, which was the ratio of annual energy produced as spawn to the sum of the annual energy produced as spawn plus the annual energy produced as somatic tissue; and (2) weight-specific reproductive effort, which was the ratio of annual energy produced as spawn to the total energy content of the female body just before spawning. For C. pennaceus, during the approximately 10 yr of life of a female, current reproductive effort rose from about 0.35 at 2 yr to about 0.85 at 10 yr. In contrast, weight-specific reproductive effort remained relatively constant throughout life for C. pennaceus (about 0.2 to 0.5), C. abbreviatus (about 0.2 to 0.3), C. flavidus (about 0.2 to 0.3) and C. quercinus (about 0.1 to 0.2). It is suggested that weight-specific reproductive effort may be useful as an index of the selective importance of the survival cost of present reproduction, while current reproductive effort more closely reflects the selective importance of energy allocation tradeoffs. Data on the 4 species of Conus examined support the hypothesis that reproductive effort should be positively correlated with extrinsic adult mortality and negatively correlated with the variability of juvenile survivorship. The data also suggest a possible relationship between reproductive effort and the cost of parental care.
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Literature Cited
Aldridge, D. W. and R. F. McMahon: Growth, fecundity and bioenergetics in a natural population of the Asiatic freshwater clam, Corbicula manilensis Philippi from North Central Texas. J. mollusc. Stud. 44, 49–70 (1978)
Barnes, H. and M. Barnes: Egg numbers, metabolic efficiency of egg production and fecundity; local and regional variations in a number of common cirripedes. J. exp. mar. Biol. Ecol. 2, 135–153 (1968)
Browne, R. A.: Comparisons of growth, mortality, fecundity, biomass and productivity rates in four lake populations of the prosobranch snail, Viviparus georgianus. Ecology 59, 742–750 (1978)
Browne, R. A. and W. D. Russell-Hunter: Reproductive effort in molluscs. Oecologia 37, 23–27 (1978)
Calow, P. and A. S. Woolhead: The relationship between ration. reproductive effort and age-specific mortality in the evolution of life history strategies — some observations on freshwater triclads. J. Anim. Ecol. 46, 765–782 (1977)
Creaser, E. P.: Reproduction of the bloodworm (Glycera dibranchiata) in the Sheepscot Estuary, Maine. J. Fish. Res. Bd Can. 30, 161–166 (1973)
Fisher, R. A.: The genetical theory of natural selection, 291 pp. New York: Dover 1930
Gadgil, M. and W. Bossert: Life history consequences of natural selection. Am. Nat. 104, 1–24 (1970)
Glynn, P. W.: On the ecology of the Caribbean chitons Acanthopleura granulata Gmelin and Chiton tuberculatus Linne: density, mortality, feeding, reproduction, and growth. Smithson. Contr. Zool. 66, 1–21 (1970)
Gonor, J. J.: Gonad growth in the sea urchin, Strongylocentrotus purpuratus (Stimpson) (Echinodermata: Echinoidea) and the assumptions of the gonad index methods. J. exp. mar. Biol. Ecol. 10, 89–103 (1972)
Grahame, J.: Breeding energetics of Littorina littorea (L.) (Gastropoda: Prosobranchiata). J. Anim. Ecol. 42, 391–403 (1973)
Grahame, J.: Reproductive effort and r- and K-selection in two species of Lacuna (Gastropoda: Prosobranchia). Mar. Biol. 40, 217–224 (1977)
Green, R. H. and K. D. Hobson: Spatial and temporal structure in a temperate intertidal community, with special emphasis on Gemma gemma (Pelecypoda: Mollusca). Ecology 51, 999–1011 (1970)
Hirshfield, M. E. and D. W. Tinkle: Natural selection and the evolution of reproductive effort. Proc. natn. Acad. Sci. U.S.A. 72, 2227–2231 (1975)
Hughes, R. N.: Ecological energetics of Nerita (Archaeogastropoda, Neritacea) populations on Barbados, West Indies. Mar. Biol. 11, 12–22 (1971a)
Hughes, R. N.: Ecological energetics of the keyhole limpet Fissurella barbadensis Gmelin. J. exp. mar. Biol. Ecol. 6, 167–178 (1971b)
Hughes, R. N.: Annual production of two Nova Scotian populations of Nucella lapillus (L.). Oecologia 8, 356–370 (1972)
Hughes, R. N. and D. J. Roberts: Reproductive effort of winkles (Littorina spp.) with contrasted methods of reproduction. Oecologia 47, 130–136 (1980)
Kohn, A. J.: The ecology of Conus in Hawaii. Ecol Monogr. 29, 47–90 (1959)
Leviten, P. J.: Patterns of resource utilization in vermivorous marine gastropods of the genus Conus, 209 pp. Ph. D. thesis, University of Washington, Seattle 1974
Menge, B.: Effect of wave action and competition on brooding and reproductive effort in the seastar, Leptasterias hexactis. Ecology 55, 84–93 (1974)
Paine, R. T.: The measurement and application of the calorie to ecological problems. A. Rev. Ecol. Syst. 2, 145–164 (1971)
Pearce, J. B. and G. Thorson: The feeding and reproductive biology of the red whelk, Neptunea antiqua (L.) (Gastropoda, Prosobranchia). Ophelia 4, 277–314 (1967)
Perron, F. E.: Larval biology of six species of the genus Conus (Gastropoda: Toxoglossa) in Hawaii, USA. Mar. Biol. 61, 215–220 (1981a)
Perron, F. E.: The partitioning of reproductive energy between ova and protective capsules in marine gastropods of the genus Conus. Am. Nat. 118, 110–118 (1981b)
Perron, F. E.: The reproductive ecology of Conus in Hawaii, 198 pp. Ph. D. thesis, University of Hawaii, Honolulu 1981 c
Pianka, E. R. and W. S. Parker: Age-specific reproductive tactics. Am. Nat. 109, 453–464 (1975)
Rutherford, J. C.: Reproduction, growth and mortality of the holothurian Cucumaria pseudocurata. Mar. Biol. 22, 167–176 (1973)
Sameoto, D. D.: Life history, ecological production, and an empirical mathematical model of the population of Sagitta elegans in St. Margaret's Bay, Nova Scotia. J. Fish. Res. Bd Can. 28, 971–985 (1971)
Schaffer, W. M.: Selection for optimal life histories: the effects of age structure. Ecology 55, 291–303 (1974)
Shine, R.: “Costs” of reproduction in reptiles. Oecologia 46, 92–100 (1980)
Snell, T. W. and C. E. King: Lifespan and fecundity patterns in rotifers: the cost of reproduction. Evolution 31, 882–890 (1978)
Spight, T. M., C. Birkeland and A. Lyons: Life histories of large and small murexes (Prosobranchia: Muricidae). Mar. Biol. 24, 229–242 (1974)
Spight, T. M. and J. Emlen: Clutch size of two marine snails with a changing food supply. Ecology 57, 1162–1178 (1976)
Stearns, S. C.: Life history tactics: a review of the ideas. Q. Rev. Biol. 51, 3–47 (1976)
Stearns, S. C.: A new view of life history evolution. Oikos 35, 266–281 (1980)
Thompson, R. J.: Fecundity and reproductive effort in the blue mussel (Mytilus edulis), the sea urchin (Strongylocentrotus droebachiensis), and the snow crab (Chionoecetes opilio) from populations in Nova Scotia and Newfoundland. J. Fish. Res. Bd Can. 36, 955–964 (1979)
Todd, C. D.: Reproductive energetics of two species of dorid nudibranchs with planktotrophic and lecithotrophic larval strategies. Mar. Biol. 53, 57–68 (1979)
Thorson, G.: Reproduction and larval development of Danish marine bottom invertebrates, with special reference to the planktonic larvae in the sound (Øresund). Meddr Kommn Havunders. (Ser. Plankton) 4, 1–523 (1946)
Vance, R. R.: On reproductive strategies in marine benthic invertebrates. Am. Nat. 107, 339–352 (1973)
Vinogradov, A. P. The elementary chemical composition of marine organisms. Mem. Sears Fdn mar. Res. 2, 1–647 (1953)
Wilbur, K. M.: Shell formation and regeneration. In: Physiology of Mollusca 1, pp 243–282. Ed. by K. M. Wilbur and C. M. Yonge. New York: Academic Press 1964
Williams, G. C.: Adaptation and natural selection, 307 pp. Princeton: Princeton University Press 1966 a
Williams, G. C.: Natural selection the costs of reproduction and a refinement of Lack's principle. Am. Nat. 100, 687–690 (1966 b)
Wyatt, T.: The biology of Oikopleura dioica and Fritillaria borealis in the Soythern Bight. Mar. Biol. 22, 137–158 (1973)
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Communicated by N. D. Holland, La Jolla
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Perron, F.E. Inter- and intraspecific patterns of reproductive effort in four species of cone shells (Conus spp.). Mar. Biol. 68, 161–167 (1982). https://doi.org/10.1007/BF00397602
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DOI: https://doi.org/10.1007/BF00397602