Generate calf-cow ratio, DeCesare recruitment, lambda, leslie matrix and stable-stage distribution from demographic parameters.

bbs_demographic_summary(
  calves_per_adult_female = 0.7,
  survival_adult_female = 0.85,
  survival_calf = 0.5,
  survival_yearling = survival_adult_female,
  proportion_female = 0.5
)

Arguments

calves_per_adult_female

A number of the calves per adult female.

survival_adult_female

A number between 0 and 1 of the annual female adult survival.

survival_calf

number between 0 and 1 of the annual calf survival.

survival_yearling

A number between 0 and 1 of the annual yearling survival.

proportion_female

A number between 0 and 1 indicating the proportion of recruits that are female.

Value

A named list of the calf-cow ratio, DeCesare recruitment, leslie matrix, lambda estimate and stable-stage distribution.

Examples

bbs_demographic_summary()
#> $calf_cow_ratio
#> [1] 0.2745098
#> 
#> $recruitment
#> [1] 0.1206897
#> 
#> $lambda
#> [1] 0.9813018
#> 
#> $stable_stage_dist
#> [1] 0.2079858 0.1059744 0.6860398
#>