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Default functional groups for the ZooMSS model

Source: R/data.R
GroupInputs.Rd

A dataset containing the biological parameters for different functional groups used in the ZooMSS size-structured marine ecosystem model. These represent various taxa from flagellates to large fish, each defined by their feeding behavior, size ranges, and physiological parameters.

Usage

GroupInputs

Format

A data frame with 12 rows (functional groups) and 19 columns:

Species

Character. Name of the functional group/taxa

Type

Character. Broad category (Zooplankton or Fish)

FeedType

Character. Feeding strategy (Heterotroph, FilterFeeder, Omnivore, Carnivore)

Prop

Numeric. Initial proportion of total biomass

W0

Numeric. Log10 minimum body weight (g) for the group

Wmax

Numeric. Log10 maximum body weight (g) for the group

Wmat

Numeric. Log10 maturation body weight (g)

SearchCoef

Numeric. Search coefficient for predation interactions

SearchExp

Numeric. Search exponent for predation scaling

PPMRscale

Numeric. Predator-prey mass ratio scaling parameter

PPMR

Numeric. Predator-prey mass ratio (for fish groups)

FeedWidth

Numeric. Feeding kernel width parameter

GrossGEscale

Numeric. Gross growth efficiency scaling

Carbon

Numeric. Carbon content proportion

Repro

Numeric. Reproduction parameter

Fmort

Numeric. Fishing mortality rate

Fmort_W0

Numeric. Log10 minimum weight for fishing mortality

Fmort_Wmax

Numeric. Log10 maximum weight for fishing mortality

PlotColour

Character. Color code for plotting the functional group

Source

Marine ecological literature and ZooMSS model development

Details

ZooMSS Functional Groups Data

The GroupInputs dataset defines 12 functional groups spanning from small microzooplankton (flagellates, ciliates) through various mesozooplankton groups (copepods, euphausiids, chaetognaths) to gelatinous zooplankton (salps, jellyfish) and three fish size classes (small, medium, large). Each group is characterized by:

  • Size ranges: W0 to Wmax define the body size spectrum

  • Feeding behavior: Different strategies for resource acquisition

  • Interaction parameters: Search rates and predator-prey relationships

  • Physiological rates: Growth efficiency and carbon content

These parameters are based on marine ecological literature and represent typical values for temperate marine ecosystems.

Examples

data(GroupInputs)
head(GroupInputs)
#> # A tibble: 6 × 19
#>   Species  Type  FeedType  Prop    W0  Wmax  Wmat SearchCoef SearchExp PPMRscale
#>   <chr>    <chr> <chr>    <dbl> <dbl> <dbl> <dbl>      <dbl>     <dbl>     <dbl>
#> 1 Flagell… Zoop… Heterot…  0.1  -12    -6.8  -8.8        640       0.8      1.5 
#> 2 Ciliates Zoop… Heterot…  0.1   -9.3  -6.3  -8.3        640       0.8      0.04
#> 3 Larvace… Zoop… FilterF…  0.1   -6.4  -3.2  -5.2        640       0.8     -3   
#> 4 OmniCop… Zoop… Omnivore  0.04  -7.5  -3.5  -5.5        640       0.8     -0.5 
#> 5 CarnCop… Zoop… Carnivo…  0.06  -7.5  -2.5  -4.5        640       0.8      1.5 
#> 6 Euphaus… Zoop… Omnivore  0.1   -4.2   0.2  -1.8        640       0.8     -2   
#> # ℹ 9 more variables: PPMR <dbl>, FeedWidth <dbl>, GrossGEscale <dbl>,
#> #   Carbon <dbl>, Repro <dbl>, Fmort <dbl>, Fmort_W0 <dbl>, Fmort_Wmax <dbl>,
#> #   PlotColour <chr>

# View size ranges across groups
plot(GroupInputs$W0, GroupInputs$Wmax, 
     col = GroupInputs$PlotColour,
     xlab = "Log10 Min Weight", ylab = "Log10 Max Weight")
text(GroupInputs$W0, GroupInputs$Wmax, GroupInputs$Species, pos = 3, cex = 0.7)