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Life table" primarily refers to period life tables, as cohort life tables can only be constructed using data up to the current point, and distant projections for future mortality. Life tables can be constructed using projections of future mortality rates, but more often they are a snapshot of age-specific mortality rates in the recent past, and ...
Demographic statistics are measures of the characteristics of, or changes to, a population. Records of births, deaths, marriages, immigration and emigration and a regular census of population provide information that is key to making sound decisions about national policy. [1] [2] A useful summary of such data is the population pyramid. It ...
Every article on a currently accepted taxon should include an infobox—specifically, a taxobox—which gives the place of the taxon in a hierarchical classification and some basic taxonomic data. The taxobox can be generated by using the Automatic taxobox system with templates such as {{Automatic taxobox}} and {}. These taxoboxes are intended ...
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Life tables are important in historical demography, too, and this isn't always directly derived from present populations. For example, Coale and Demeny derive some of their model life tables from recent data, but derive the lower life expectancy versions from mathematical adjustment to the better-documented higher life expectency versions.
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The Catalogue of Life website was updated in December, 2020 to use new style IDs and a new infrastructure (see new infrastructure). This template handles references using the new IDs and infrastructure using named parameters ( |id= , |title= , etc), while also handling legacy uses with the old-style IDs with positional parameters.
Taxonomic databases digitize scientific biodiversity data and provide access to taxonomic data for research. [1] Taxonomic databases vary in breadth of the groups of taxa and geographical space they seek to include, for example: beetles in a defined region, mammals globally, or all described taxa in the tree of life. [2]