## Table 2 |
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Deterministic and median stochastic growth rates of rock and white-tailed ptarmigan
based on matrix model projections |
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Rock ptarmigan |
White-tailed ptarmigan |
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Juvenile survival |
Correlation |
Deterministic lambda |
Stochastic lambda (sd) |
Deterministic lambda |
Stochastic lambda (sd) |

0.22 | 0.5 | 0.917 (0.046) | 0.818 (0.056) | ||

0.22 | 0 | 0.944 | 0.923 (0.039) | 0.864 | 0.826 (0.053) |

0.22 | −0.5 | 0.928 (0.033) | 0.836 (0.045) | ||

0.27 | 0.5 | 0.985 (0.048) | 0.902 (0.063) | ||

0.27 | 0 | 1.013 | 0.993 (0.042) | 0.957 | 0.910 (0.056) |

0.27 | −0.5 | 0.999 (0.033) | 0.923 (0.050) | ||

0.32 | 0.5 | 1.052 (0.048) | 0.997 (0.065) | ||

0.32 | 0 | 1.082 | 1.062 (0.044) | 1.048 | 1.000 (0.061) |

0.32 | −0.5 | 1.065 (0.038) | 1.008 (0.057) |

Models were run with three values for mean juvenile survival and three levels of within year correlation between mean juvenile and mean second-year/after-second year survival. Within year fertility and annual survival rates of yearlings and adults were assigned a correlation of 0.9. All other pairwise comparisons were assumed to have no correlation. Standard deviation for stochastic lambda estimates refer to the variation among 25-year projections.

Wilson and Martin

Wilson and Martin *BMC Ecology* 2012 **12**:9 doi:10.1186/1472-6785-12-9