Definitions for age class
This page provides all possible meanings and translations of the word age class
people in the same age range
The age-class descriptor is used for population models in which the number of animals in different age-classes is represented separately. For example, a population of rabbits might have 100 individuals in it, or which 50 are in their first year, 30 in their second year, and 20 in their third year. In an age-class model, this could be represented as:Age-class Number1 502 303 20So, 3 values are used to represent the state of the system, rather than just one in a simpler, lumped model of the system.In this example, each age-class is the same "width", i.e. 1 year. It is perfectly legitimate to make each age-class a different width. For example, we could lump the first two year sinto a single class, givingAge-class Number1 80 (corresponds to the first 2 years)2 20 It is also common for the final age-class to hold all individuls of that age and above. This assumes that their population parameters (e.g. mortality rate) stay constant above that age, but that can often be quite a reasonable assumption, especially if their are reletively few individuals in that class.
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