کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4502419 1320565 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Linking the population growth rate and the age-at-death distribution
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Linking the population growth rate and the age-at-death distribution
چکیده انگلیسی

The population growth rate is linked to the distribution of age at death. We demonstrate that this link arises because both the birth and death rates depend on the variance of age-at-death. This bears the prospect to separate the influences of the age patterns of fertility and mortality on population growth rate. Here, we show how the age pattern of death affects population growth. Using this insight we derive a new approximation of the population growth rate that uses the first and second moments of the age-at-death distribution. We apply our new approximation to 46 mammalian life tables (including humans) and show that it is on par with the most prominent other approximations.


► We present a new approximation of the population growth rate.
► Our approximation includes the age-at-death distribution of a population.
► It thus links the age pattern of mortality of a population to its growth.
► Our approximation advances disentangling the effects of viability and fertility.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical Population Biology - Volume 82, Issue 4, December 2012, Pages 244–252
نویسندگان
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