chore: Update model description

IDEC-463

mapfile/template.j2

@@ -44,33 +44,28 @@ WEB
             {% endif %}
             "wms_abstract"  "
             <div id='preamble'>
-                <p>Pollen beetle (Meligethes spp.) adults are approximately 2.5 mm,
-                    metallic greenish-black. Females bite oilseed rape buds and lay their eggs
-                    inside. Adults and larvae attack buds and flowers, resulting in withered
-                    buds and reduced pod set. In oilseed rape, adult and larval feeding can
-                    lead to bud abortion and reduced pod set. However, damage rarely results
-                    in reduced yields for winter crops. Spring crops are more vulnerable, as
-                    the susceptible green/yellow bud stage often coincides with beetle migration.
+                <p>Pollen beetle (Meligethes spp.) adults are approximately 2.5 mm, metallic
+                greenish-black. Oilseed rape is only vulnerable to pollen beetle damage if large
+                numbers of adult beetles migrate into the crop during green bud stage (BBCH
+                Growth stages 51-59). Adult females bite oilseed rape buds and lay their eggs
+                inside, resulting in withered buds and reduced pod set. Migration can be predicted
+                based on daily maximum air temperature; migrations begins at 12 degrees Celsius,
+                and large numbers migrate above 15 degrees Celsius. Where a high risk of migration
+                coincides with the vulnerable growth stage, crops should be monitored and an
+                appropriate threshold used to inform management decisions.
                 </p>
             </div>
             <div id='body'>
-              <p>Oilseed rape is only vulnerable if large numbers of pollen
-                  beetle migrate into the crop during green bud stage. This DSS predicts
-                  migration into crops based on air temperature, and so can be used to
-                  evaluate risk to crop. Daily maximum air temperature is used to predict Migration
-                  Risk. The default value of 15 degrees celsius is used, as that is the
-                  temperature advised in the UK at which pollen beetles will fly.
-              </p>
-              <p>This DSS was adapted from work carried out in the UK, and is
-                  considered applicable, but not yet validated in, Belgium, Luxembourg,
-                  Netherlands, France, Germany, Rep. Ireland, and Denmark. Only to be used during
-                  Oilseed rape growth stages 51-59. This model is a simplification of a more detailed
-                  model described in Ferguson et al. (2015) Pest Management Science 72, 609-317.
-                  <a href='https://doi.org/10.1002/ps.4069'>https://doi.org/10.1002/ps.4069</a>
+              <p>This DSS was adapted from work carried out in the UK, and is considered applicable,
+              but not yet validated in, Belgium, Luxembourg, Netherlands, France, Germany, Rep.
+              Ireland, and Denmark. Only to be used during Oilseed rape growth stages 51-59.
+              This model is a simplification of a more detailed model described in Ferguson et
+              al. (2015) Pest Management Science 72, 609-317.
+              <a href='https://doi.org/10.1002/ps.4069'>https://doi.org/10.1002/ps.4069</a>
               </p>
               <h3>Explanation of parameters</h3>
               <ul>
-                <li>TM_MAX = <span itemprop='TM_MAX'>Maximum Air Temperature at 2m</span></li>
+                <li>temperature = <span itemprop='temperature'>Maximum Air Temperature at 2m</span></li>
               </ul>
             </div>
             "