The coverage of a sample of individuals from a biological community is deยฎned as the total relative abundance of the species represented in the sample. A simple estimator of coverage is based on the number of species represented in the sample by a single individual. This estimator works well when th
Effect of sample bias on paleodemographic fertility estimates
โ Scribed by Paine, Richard R.; Harpending, Henry C.
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 129 KB
- Volume
- 105
- Category
- Article
- ISSN
- 0002-9483
No coin nor oath required. For personal study only.
โฆ Synopsis
Paleodemographers must work to understand how representative any archaeologically recovered skeletal series is and the potential effects of series bias on their demographic reconstructions. We examine two forms of bias: 1) infant underenumeration caused by differential preservation or incomplete archaeological recovery and 2) the underenumeration of individuals over age 45 related to methodological bias. We generated 60 simulated skeletal series of 250 individuals each based on the Brass ([1971] Biological Aspects of Demography (London: Taylor and Francis), pp. 69-110) logit models. In the first test, age bias was introduced deterministically for all individuals with age at death over 40 years using the Lovejoy et al. ([1985] Am. J. Phys. Anthropol. 68:1-14) bias estimates. In the second test, 50% of all individuals under 5 years old were removed from each simulated distribution. The simulated series were analyzed using the model life table fitting procedure developed by the authors
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