Changes between Version 1 and Version 2 of EwEugOnTheNeedForInputParameters


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Timestamp:
2010-02-05 16:58:32 (10 years ago)
Author:
varunr
Comment:

Added images.

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  • EwEugOnTheNeedForInputParameters

    v1 v2  
    77where the predation mortality term is the parameter that links the groups with each other. Ecopath balances the system using one production equation for each group in the system. For a system with three groups three production equations like the one above are used, i.e., 
    88 
    9 ../Resources/Images/0800000E.png'''Eq. 15''' 
     9[[Image(wiki:EwEugImages:0800000E.png)]] '''Eq. 15''' 
    1010 
    1111where, ''P,,i,,'' is the total production of group ''i''; ''Y,,i,,'' is the catches of group ''i'', ''E,,i,,'' is the net migration of ''i'', and ''BA,,i,,'' the biomass accumulation. ''DC,,ij,,'',,,,is the proportion of the diet predator group'' i'' obtains from prey group ''j''. Bi is the biomass of group ''i''; ''Q/Bi'' is the consumption/biomass ratio of group'' i''. ''P/B,,i,,'' is the production/biomass ratio of group ''i''; ''EE,,i,,'' is the ecotrophic efficiency, i.e. (1 - other mortality), of group'' i''.