Changes between Version 3 and Version 4 of EwEugMediation


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Timestamp:
2010-11-24 00:31:46 (9 years ago)
Author:
shermanl
Comment:

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  • EwEugMediation

    v3 v4  
    3939When you open the Mediation form for the first time, you will see several 'blank' mediation shapes (Figure 8.9). To define a mediation shape, first select one of these blank shapes. You can then define trophic mediation shapes in one of two ways: 
    4040 
    41  1. Shapes can be drawn freehand using the blue sketch pad. You will see your sketched shape transferred to the thumbnail in the bottom pane;2. Alternatively, you can use standard mathematical shapes. Click ''Change shape '' at the top of the form to open the ''Change shape'' dialogue box (Figure 8.10). Select a shape type (e.g., linear, sigmoid, exponential) from the menu in the window. You can tailor the shape to your specific requirements by setting the ''Y Zero'', ''Y End, Y Base'' and ''Steepness'' parameters (where appropriate) in the cells provided. 
     41 1. Shapes can be drawn freehand using the blue sketch pad. You will see your sketched shape transferred to the thumbnail in the bottom pane;2. Alternatively, you can use standard mathematical shapes. Click ''Change shape ...'' at the top of the form to open the ''Change shape'' dialogue box (Figure 8.10). Select a shape type (e.g., linear, sigmoid, exponential) from the menu in the window. You can tailor the shape to your specific requirements by setting the ''Y Zero'', ''Y End, Y Base'' and ''Steepness'' parameters (where appropriate) in the cells provided. 
    4242 
    43 '''Save as image ''' 
     43'''Save as image ...''' 
    4444 
    45 Clicking the'' Save as image '' button at the top of the form opens a dialogue box prompting you to save the current trophic mediation shape to a bitmap file (.bmp). Use this dialogue box to name the file and browse for a location to save it. 
     45Clicking the'' Save as image ...'' button at the top of the form opens a dialogue box prompting you to save the current trophic mediation shape to a bitmap file (.bmp). Use this dialogue box to name the file and browse for a location to save it. 
    4646 
    4747'''Values ...''' 
     
    6363There are four additional menu items on the bottom pane that allow you add, copy, delete and rename mediation shapes. 
    6464 
    65 '''Add''' 
     65'''Add...''' 
    6666 
    6767Adds an extra blank mediation shape. 
     
    8181'''Step 2. Define and edit relative weight of impacting groups''' 
    8282 
    83 The ''Edit relative weight'' (''Edit'') button is found in the middle of the ''Mediation'' form just above the ''Mediating groups'' graph (see Figure 8.9). As discussed above, the relative weightings are used to assign a weighted sum of third-party group biomasses to the ''x''-axis of each trophic mediation function. This allows several different groups to have the same trophic mediation effect but to different degrees. Note that third-party groups can be functional groups of organisms (Ecopath groups) or fishing fleets. 
     83The ''Edit relative weight'' (''Edit...'') button is found in the middle of the ''Mediation'' form just above the ''Mediating groups'' graph (see Figure 8.9). As discussed above, the relative weightings are used to assign a weighted sum of third-party group biomasses to the ''x''-axis of each trophic mediation function. This allows several different groups to have the same trophic mediation effect but to different degrees. Note that third-party groups can be functional groups of organisms (Ecopath groups) or fishing fleets. 
    8484 
    8585Assign relative weightings in the following steps: 
    8686 
    87 1. First, you must select a mediation shape from the set of mediation shapes at the bottom of the'' Mediation'' form. Once you have selected the desired mediation shape, click the ''Edit'' button to open the ''Define biomass percentage'' form to assign relative weightings by group to that particular mediation shape (Figure 8.11). 
     871. First, you must select a mediation shape from the set of mediation shapes at the bottom of the'' Mediation'' form. Once you have selected the desired mediation shape, click the ''Edit...'' button to open the ''Define biomass percentage'' form to assign relative weightings by group to that particular mediation shape (Figure 8.11). 
    8888 
    89892. On the ''Define biomass percentage'' form, select third-party groups/fleets from the menu on the left and move them to the ''Assigned groups and fleets'' table using the green arrow.