Table 3.

Longevity and fecundity associations with absolute endocranial volume: results from models for adults (3+ years of age). (Longevity models exclude shot deer (n = 241 females, n = 167 males), whereas fecundity models include shot deer (n = 316 females, n = 64 males). As with the main female fecundity measure in the text (proportion of years gave birth), the additional measure of fecundity (described in Selection analysis; models of fitness, fecundity and longevity section) of age at first reproduction did not vary with absolute endocranial volume.)

variableestimates.e.zp-value
females
 longevity: age at death
  intercept−1.220.54−2.250.03
  endocranial volume0.0020.00092.300.02
  jaw length0.010.0025.47<0.001
 longevity: number of years from first reproduction to death
  intercept−3.570.53−6.76<0.001
  endocranial volume0.0030.00093.60<0.001
  jaw length0.020.0028.63<0.001
 fecundity: proportion of years gave birth (first reproduction to death)
  intercept1.311.251.050.30
  endocranial volume−0.0020.002−1.000.32
  jaw length0.00070.0050.150.88
 fecundity: age at first reproduction
  intercept1.0090.711.420.16
  endocranial volume0.00010.0010.110.91
  jaw length0.0010.0030.510.61
males
 longevity: age at death
  intercept0.400.680.590.55
  endocranial volume0.0010.0011.130.26
  jaw length0.0080.0023.61<0.001
 fecundity: number of offspring per year in prime (8–12 years)
  intercept2.123.04−0.790.43
  endocranial volume0.0060.0041.420.16
  jaw length0.00080.0090.080.93
  age 90.170.190.900.37
  age 100.210.211.020.31
  age 110.510.212.420.02
  age 120.590.292.040.04
  random effect: IDvariance: 0.20s.d.: 0.45