RECRUITMENT AND THE LOCAL DYNAMICS OF OPEN MARINE POPULATIONS

DOI Web Site 被引用文献20件
  • M. J. Caley
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;
  • M. H. Carr
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;
  • M. A. Hixon
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;
  • T. P. Hughes
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;
  • G. P. Jones
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;
  • B. A. Menge
    Department of Marine Biology, James Cook University, Townsville, Queensland 4811, Australia;

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<jats:p> ▪ Abstract  The majority of marine populations are demographically open; their replenishment is largely or exclusively dependent on a supply of juveniles from the plankton. In spite of much recent research, no consensus has yet been reached regarding the importance of recruitment relative to other demographic processes in determining local population densities. We argue 1. that demographic theory suggests that, except under restrictive and unlikely conditions, recruitment must influence local population density to some extent. Therefore, 2. the question as to whether the size of a particular population is limited by recruitment is misguided. Finally, 3. the effect of recruitment on population size can be difficult to detect but is nonetheless real. A major weakness of most existing studies is a lack of attention to the survival of recruits over appropriate scales of time and space. Acknowledgment of the multifactorial determination of population density should guide the design of future experimental studies of the demography of open populations. </jats:p>

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