Changes between Version 1 and Version 2 of EwEHabitatForagingCapacity


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Timestamp:
2013-01-30 12:45:48 (6 years ago)
Author:
jeroens
Comment:

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  • EwEHabitatForagingCapacity

    v1 v2  
    1 = Using the habitat capacity model = 
     1== Using the habitat capacity model == 
    22With Ecospace loaded, the habitat capacity model is configured in four steps: 
    33 
    4  
    5 == 1.     Define environmental input layers == 
     4=== 1.     Define environmental input layers === 
    65The habitat capacity model requires a map layer for each environmental factor that you wish to include. These layers are not provided in an Ecospace scenario, and are up to you to define. This is done via ''Menu > Ecospace> Define Environmental input Layers'' (Figure 1) 
    76 
    8 [ Figure]1 - Start defining environmental input layers 
     7Figure 1 - Start defining environmental input layers 
    98 
    109This brings up an Add/Edit/Delete interface that resembles forms to manage fleets, habitats, MPA’s, etc (Figure 2). Here you can add new layers, modify or delete existing layers. Note that the terms ‘map’ and ‘layer’ are freely used interchangeably, which perhaps should not be so. 
    1110 
    12 [ Figure]2 - Define environmental input layers 
     11Figure 2 - Define environmental input layers 
    1312 
    1413Anyway, once your layers are defined you can provide the layers with data in the Ecospace maps interface. 
    1514 
    16  
    17 == 2.     Provide map values == 
     15=== 2.     Provide map values === 
    1816Once the layers have been defined you can enter values in the environmental input layers (Figure 3) 
    1917 
    20 [ Figure]3 - Populate environmental input layers 
     18Figure 3 - Populate environmental input layers 
    2119 
    22  
    23 == 3.     Define environmental responses == 
     20=== 3.     Define environmental responses === 
    2421Functional groups respond to the environmental drivers via a mediation-like structure. You will need to define these curves via ''Navigation Tree > Ecospace > Input > Habitat based foraging''. 
    2522 
    26 [ Figure]4 - Foraging response configuration form 
     23Figure 4 - Foraging response configuration form 
    2724 
    2825The foraging response configuration interface has three components: 
    2926 
    30 1.       A sketchpad where the response function is drawn. [[BR]] The blue line identifies the ‘1’ value connection point: the point where there is no positive or negative effect. The 0.000 label does not respond yet; 
     27 1. A sketchpad where the response function is drawn. [[BR]] The blue line identifies the ‘1’ value connection point: the point where there is no positive or negative effect. The 0.000 label does not respond yet; 
    3128 
    32 2.       Thumbnails for all available response functions. [[BR]] Here you manage which response functions are available; 
     29 2. Thumbnails for all available response functions. [[BR]] Here you manage which response functions are available; 
    3330 
    34 3.       The capacity panel, where you define how response functions apply to groups. 
     31 3. The capacity panel, where you define how response functions apply to groups. 
    3532 
    3633As in mediation, a single response function can be used by any number of groups. You can reshape and rename functions with the ‘Values’ and ‘Change shape’ options on the sketchpad toolbar. Next, we’ll apply the foraging response to the environmental drivers. 
    3734 
    38  
    39 == 4.     Define foraging response == 
     35=== 4.     Define foraging response === 
    4036Next, define which functional groups use the response curves that you defined, and to what environmental driver the response applies. This interface is accessed through the ‘Set input values’ on the capacity panel (Figure 4). 
    4137 
    4238This brings up the ‘foraging area response to input maps’ interface (Figure 5) for a single response function. 
    4339 
    44 [ Figure]5 - Foraging area response interface 
     40Figure 5 - Foraging area response interface 
    4541 
    4642In this interface, the configured components are put together. Here, users define how groups respond to environmental drivers for the selected environmental response function. 
     
    4844The panels perform as follows: 
    4945 
    50 1.       Functional group selection panel. Selected groups can be added selected driver maps in (2) 
     46 1. Functional group selection panel. Selected groups can be added selected driver maps in (2) 
    5147 
    52 2.       Group/driver assignment panel, showing which groups are assigned to which environmental drivers. Notice that ‘Depth’ is always listed beside the user-defined environmental drivers. 
     48 2. Group/driver assignment panel, showing which groups are assigned to which environmental drivers. Notice that ‘Depth’ is always listed beside the user-defined environmental drivers. 
    5349 
    54 3.       This panel shows the function panel imposed upon a histogram of values from the currently selected input map. The ‘set X axis from selected map’ option will populate the histogram, and the X min and X max defines min and max values for the response curve. 
     50 3. This panel shows the function panel imposed upon a histogram of values from the currently selected input map. The ‘set X axis from selected map’ option will populate the histogram, and the X min and X max defines min and max values for the response curve. 
    5551 
    56  
    57 = Run = 
     52=== 5. Run === 
    5853Check that capacity calculations do use the capacity model in the Ecospace parameters form (Figure 6) 
    5954 
    60 [ Figure]6 - Ecospace parameters to check for capacity 
     55Figure 6 - Ecospace parameters to check for capacity 
    6156 
    6257The resulting capacity map can be viewed in the Ecospace map