Changes between Version 1 and Version 2 of EwEugStockRecruitmentPlot


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Timestamp:
2010-11-24 00:35:25 (9 years ago)
Author:
shermanl
Comment:

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  • EwEugStockRecruitmentPlot

    v1 v2  
    22The ''S/R plot'' form displays the emerging stock-recruitment plot for the multi-stanza groups in your model, enabling users to test for the effects of compensatory recruitment in the model. Compensatory recruitment effects are usually expressed as a flat or dome-shaped relationship between numbers of juveniles recruiting to the adult pool versus parental abundance (the stock-recruit relationship). There is a way to create such an effect in Ecosim: 
    33 
    4 On the Group info form, set a non-zero feeding time adjustment for the juvenile group, with high EE, or high proportion of the ‘other’ mortality  (the mortality not accounted for) being sensitive to changes in predator feeding time. 
     4On the Group info form, set a non-zero feeding time adjustment for the juvenile group, with high EE, or high proportion of the 'other' mortality  (the mortality not accounted for) being sensitive to changes in predator feeding time. 
    55 
    66This represents density-dependent changes in juvenile mortality rate associated with changes in feeding time and predation risk. It is usually also important that the vulnerabilities of prey to the juvenile group ([wiki:EwEugVulnerabilitiesFlowControl Vulnerabilities] form) also be relatively low.