Determinants of reproductive potential and population size in open populations of Patella vulgata
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The importance of external and internal population processes in determining variation in reproductive output and variation in population size were quantified with model simulations for open populations of the sequentially hermaphroditic limpet Patella vulgata using field data from the Isle of Man and South West Ireland. Cross-correlation analyses of model outputs and elasticity analyses show that population dynamics are dominated by the effects of large females, and that recruitment adds little to reproductive output. However, populations experiencing low but highly variable recruitment appear male limited and recruitment pulses carrying young males into the population are correlated to reproductive output with a 2–5-year lag. We conclude that pulses in recruitment can be a major structuring force in these limpet populations, but site-specific post-recruitment processes will determine the relative importance of recruitment to population dynamics and the lag between recruitment and reproductive output.
KeywordsReproductive Output Large Female Elasticity Analysis Birth Function Open Population
This study was performed as a part of the project DELOS (EU EVK3-CT-2000-00041). Data were attained from EUROROCK (EU MAS3-CT95-0012). We would like to thank N. Jonzén for valuable comments on an earlier draft of this manuscript. SJH and SRT were supported by NERC grant in aid of the MBA and the Oceans 2025 programme.
- Ballantine WJ (1961) The population dynamics of Patella vulgata and other limpets. Dissertation. University of London, UKGoogle Scholar
- Caswell H (2001) Matrix population models: construction, analysis, and interpretation. Sinauer Associates, SunderlandGoogle Scholar
- Chatfield C (1999) The analysis of time series—an introduction, 5th edn. Chapman & Hall, Boca RatonGoogle Scholar
- Dodd JM (1957) Artificial fertilisation, larval development and metamorphosis in Patella vulgata L. and Patella coerulea L. Pubbl Stn Zool Napoli 29:172–186Google Scholar
- Doherty PJ, Williams DM (1988) The replenishment of coral-reef fish populations. Oceano Mar Biol 26:487–551Google Scholar
- Hawkins SJ, Kain JM, Hartnoll RG, Norton TA (1992) Plant-animal interactions on hard substrata in the north-east Atlantic. In: John DM, Hawkins SJ, Price JH (eds) Plant-animal interactions in the marine benthos. Clarendon Press, Oxford, pp 1–32Google Scholar
- Jenkins SR, Aberg P, Cervin G, Coleman RA, Delany J, Della Santina P, Hawkins SJ, LaCroix E, Myers AA, Lindegarth M, Power AM, Roberts MF, Hartnoll RG (2000) Spatial and temporal variation in settlement and recruitment of the intertidal barnacle Semibalanus balanoides (L.) (Crustacea : Cirripedia) over a European scale. J Exp Mar Biol Ecol 243:209–225CrossRefGoogle Scholar
- Southward AJ, Southward EC (1978) Recolonization of rocky shores in Cornwall after use of toxic dispersants to clean up the Torrey Canyon spill. J Fish Res Bd Can 35:682–706Google Scholar
- Werner FE, Cowen RK, Paris CB (2008) Coupled biological and physical models present capabilities and necessary developments for future studies of population connectivity. Oceanography 20:54–69Google Scholar
- Young CM (1990) Larval ecology of marine invertebrates: a sesquicentennial history. Ophelia 32:1–48Google Scholar