Get stochastic Boreal Caribou fecundity rates by year and stage.

Year is scaled to Year - 1 for trend, which ensures that calves_per_adult_female is the rate in the first year.

bbs_fecundity_caribou(
  calves_per_adult_female,
  trend = 0,
  annual_sd = 0,
  nyear = 10
)

Arguments

calves_per_adult_female: A number of the calves per adult female.
trend: A number of the effect of an increase of one year on the log-odds calves per adult female.
annual_sd: A number of the standard deviation of the annual variation on the log-odds calves per adult female.
nyear: A whole number of the number of years.

Value

A matrix of fecundity rates with dimensions year and stage.

Examples

bbs_fecundity_caribou(0.4, trend = 0.1, annual_sd = 0.3)
#> $eFecundity
#>       [,1] [,2]      [,3]
#>  [1,]    0    0 0.3608735
#>  [2,]    0    0 0.4708405
#>  [3,]    0    0 0.6020568
#>  [4,]    0    0 0.3555430
#>  [5,]    0    0 0.5369980
#>  [6,]    0    0 0.3859500
#>  [7,]    0    0 0.5094816
#>  [8,]    0    0 0.5692408
#>  [9,]    0    0 0.6358586
#> [10,]    0    0 0.5548564
#> 
#> $b0
#> [1]         NA         NA -0.4054651
#> 
#> $bYear
#> [1] 0.0 0.0 0.1
#> 
#> $bAnnual
#>       [,1] [,2]        [,3]
#>  [1,]    0    0 -0.16610982
#>  [2,]    0    0  0.18869461
#>  [3,]    0    0  0.61950747
#>  [4,]    0    0 -0.48929682
#>  [5,]    0    0  0.15372808
#>  [6,]    0    0 -0.55890345
#>  [7,]    0    0 -0.15660375
#>  [8,]    0    0 -0.01578057
#>  [9,]    0    0  0.16289890
#> [10,]    0    0 -0.27422245
#>