Determinants of reproductive potential and population size in open populations of Patella vulgata |
| |
Authors: | Andreas Sundelöf Stuart R Jenkins Carl J Svensson Jane Delany Stephen J Hawkins Per Åberg |
| |
Institution: | 1. Department of Marine Ecology, University of Gothenburg, P.O. Box 461, 405 30, G?teborg, Sweden 5. Department of Biology, University of Bergen, PO Box 7800, 5020, Bergen, Norway 2. Marine Biological Association, Citadel Hill, Plymouth, Devon, PL1 2PB, UK 4. School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, LL59 5EY, UK 3. Dove Marine Laboratory, School of Marine Science and Technology, University of Newcastle-upon-Tyne, Cullercoats, North Shields, NE30 4PZ, UK
|
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|