Differences

This shows you the differences between two versions of the page.

--- tutorial_15-implementing_using_one_compartment [2023/04/03 16:13]
dmytroh
+++ tutorial_15-implementing_using_one_compartment [2023/04/03 17:38] (current)
dmytroh
@@ Line 6: / Line 6: @@
 ====Option 1====
+Create parameters according to table below:
+^Parameter          ^Unit      ^Value ^Description                                                     ^
+|a                  |1/year    |0.04  |the natural growth rate of rabbits in the absence of predation  |
+|c                  |1/year    |0.2   |the natural death rate of foxes in the absence of food (rabbits)|
+|b                  |1/(year F)|5.0E-4|the death rate per encounter of rabbits due to predation        |
+|e                  |F/R       |0.1   |the efficiency of turning predated rabbits into foxes           |
+|Init_population                  |n       |   |Initial animal population        |
+Values for parameter Initial population:
+  * //Init_population[Rabbits]= 1000//
+  * //Init_population[Foxes]= 4//
+Create source, sink, compartments and transfer according to picture below:
 {{rabbitfoxmodel3.png?600}}
@@ Line 14: / Line 29: @@
   * //AnimalDeath[Foxes]=c·Animals//
-Initial Conditions for compartment:
+**Initial Conditions** for compartment:
   * For //Animals[Rabbits] = Init_population//
   * For //Animals[Foxes] = Init_population//
-Values for parameter Initial population:
-  * Init_population[Rabbits]= 1000
-  * Init_population[Foxes]= 4
-<HTML>
+====Option 2====
-<table xmlns="http://www.w3.org/1999/xhtml" style="height: 240px; width: 240px; text-align: center; font-weight: bold;">
+Create parameters according to table below:
- <tr>
-  <td style="width: 68px; height: 68px; background-color: #CAEACA;">Ecosystem</td>
+^Parameter          ^Unit      ^Value ^Description                                                     ^
-  <td style="width: 68px; height: 68px;"> </td>
+|a                  |1/year    |0.04  |the natural growth rate of rabbits in the absence of predation  |
-  <td style="width: 68px; height: 68px;"> </td>
+|c                  |1/year    |0.2   |the natural death rate of foxes in the absence of food (rabbits)|
- </tr>
+|b                  |1/(year F)|5.0E-4|the death rate per encounter of rabbits due to predation        |
- <tr>
+|e                  |F/R       |0.1   |the efficiency of turning predated rabbits into foxes           |
-  <td style="width: 68px; height: 68px;"> </td>
-  <td style="width: 68px; height: 68px; background-color: #C0C0C0;"> </td>
+Create only one compartment with name //Animals//.
-  <td style="width: 60px; height: 60px;"> </td>
- </tr>
+{{rabbitfoxmodel4.png}}
- <tr>
-  <td style="width: 68px; height: 68px;"> </td>
+**Initial Conditions** for compartment:
-  <td style="width: 68px; height: 68px;"> </td>
+  * For //Animals[Rabbits] = 1000//
-  <td style="width: 68px; height: 68px; background-color: #C0C0C0;"> </td>
+  * For //Animals[Foxes] = 4//
- </tr>
-</table>
+**dy/dt** for compartment:
-</HTML>
+  * Rabbits: //dAnimals/dt=Animals[Rabbits]·a-b·Animals[Rabbits]·Animals[Foxes]//
+  * Foxes: //dAnimals/dt=Animals[Rabbits]·Animals[Foxes]·e·b-c·Animals[Foxes]//
-//''%%Figure 1 Ecolego matrix of one Compartment approach%%''//\\
@@ Line 50: / Line 62: @@
 **Solution to the excersise**
+  * {{lotka-volterra.eco}}
-  * {{tutorial:Lotka-Volterra.eco?linkonly}}
+  * old one {{tutorial:Lotka-Volterra.eco?linkonly}}

Ecolego Wiki

User Tools

Site Tools

Differences

Page Tools