modelLBM

Larch bud moth population dynamics model
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Information

The larch bud moth model describes the population dynamics of the larch bud moth insect in the upper Engiadina valley of Switzerland.

References:

  1. Cellier, F.E. (1991), Continuous System Modeling, Springer-Verlag, New York, ISBN: 0-387-97502-0, 755p.
  2. Fischlin, A. and W. Baltensweiler (1979), "Systems Analysis of the Larch Bud Moth System. Part I: The Larch - Larch Bud Moth Relationship," Mitteilungen der Schweizerischen Entomologischen Gesellschaft, 52, pp.273-289.

Simulate the model across 29 time units (years) and plot the simulated and the measured data together against the calendar years.

Parameters

TypeNameDefaultDescription
Realwintermortality0.5728Percentage of eggs dying during the winter
Modelica.SIunits.Massbiomass91.3Dry needle biomass per tree
Integernbr_trees511147Number of trees
Integeregg04765975Initial number of eggs
Realrawfiber015.0Initial rawfiber

Components

TypeNameDefaultDescription
RealLogDensitySimSimulated logarithmic larvae density
RealLogDensityMeasMeasured logarithmic larvae density
Sources.SourceSource1
Levels.DiscreteLevelEggs
Rates.Rate_1OldEggs
Sources.SinkSink1
Auxiliary.GainHatching
Levels.DiscreteLevelRawfiber
Sources.SourceSource2
Rates.Rate_1OldFiber
Sources.SinkSink2
Functions.LinearIncoincidence
Functions.LinearCoincidence
Auxiliary.Prod_2Prod_2_1
Functions.LinearWeakening
Functions.LinearPhysiology
Functions.LinearTreeFoliage
Auxiliary.Prod_2Prod_2_2
Auxiliary.ConstNbrTrees
StarvationStarvation1
Auxiliary.GainFoodDemand
Functions.LinearFoodSupply
Auxiliary.Prod_3Prod_3_1
Auxiliary.GainSexRatio
Functions.LinearFecundity
DefoliationDefoliation1
GrecrGrecr1
Auxiliary.GainLarvaeDensity
LogarithmLogarithm1
Functions.TabularMeasurement
LogarithmLogarithm2
Rates.MRate_2NewEggs
Rates.MRate_2NewFiber