Changes between Version 1 and Version 2 of EwEugSearchRates


Ignore:
Timestamp:
2010-11-23 01:35:17 (8 years ago)
Author:
shermanl
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • EwEugSearchRates

    v1 v2  
    1313where ''Q,,ji,,'' expresses the consumption rate for consumer j of prey i. We can then solve for ''a,,ji,, = Q,,ji,,/(B,,j,,·B,,i,,)'', which defines the Lotka-Volterra mass-action term a the quotient of the amount of ''i'' consumed by'' j'', divided by the product of their biomasses. 
    1414 
    15 This mass-action term is used as ‘fixed support’ for the ‘lever’ which, in Ecosim, regulates the consumption of predators, given the changing biomasses of their preys, and their own changing biomasses. 
     15This mass-action term is used as 'fixed support' for the 'lever' which, in Ecosim, regulates the consumption of predators, given the changing biomasses of their preys, and their own changing biomasses. 
    1616 
    17 The values of ''a'' depend obviously on the units used, and the biomass units used in Ecopath render difficult a direct interpretation of the numbers in the ‘Search rate’ table. However, they can easily be converted into values of'' a'' applying to single organisms, given that the ratio of the individual prey and predator weights are divided into the values of ''a'' for each pair of prey and predator. 
     17The values of ''a'' depend obviously on the units used, and the biomass units used in Ecopath render difficult a direct interpretation of the numbers in the 'Search rate' table. However, they can easily be converted into values of'' a'' applying to single organisms, given that the ratio of the individual prey and predator weights are divided into the values of ''a'' for each pair of prey and predator.