N_{e} | Effective population size per generation |

N_{b} | Effective number of breeders in one time period |

An estimate of N_{b} or N_{e} based on genetic data | |

An estimate of N_{b} adjusted to account for bias due to age structure | |

N_{T} | Total number of individuals age 1 and older alive at any given time |

N_{A} | Total number of adults (individuals with age ≥α) alive at any given time |

N_{1} | Total number of offspring produced per time period that survive to age 1 |

x | Age (units can be days, weeks, months, or years) |

s_{x} | Probability of surviving from age x to age x + 1 |

l_{x} | Cumulative probability of surviving to age x ( with s_{0} = l_{1} = 1) |

b_{x} | Mean number of offspring in one time period produced by a parent of age x |

ω | Maximum age |

α | Age at maturity (first age with b > 0)_{x}^{a} |

AL | Adult life span = ω – α + 1 |

Gen | Generation length (mean age of parents of a newborn cohort) |

CVf | Coefficient of variation of b for adult life span (using only ages with _{x}b > 0)_{x}^{b} |

HMean | Harmonic mean |

SASS | Individuals of the same age and sex |

↵a This follows the definition used by Waples

*et al.*(2013), who adopted a simple rule to deal with a large number of diverse data sets. When sufficient data are available, a more precise estimate would be age at which 50% are mature or weighted age at first maturity.↵b When

*b*varied between sexes, CVf was computed over data for both sexes, after standardizing_{x}*b*to values that produce a population of constant size._{x}