A Simple Relationship Between Removal Rate and Age-Sex Composition of Removals for Certain Animal Populations

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Abstract
In some animal populations, a cohort is subject to repeated removals (e.g., an annual harvest) with 1 sex consistently more vulnerable. The more vulnerable sex commonly predominates in the initial removals but not in the later ones. Given certain assumptions, the average fraction removed is approximately equal to the inverse of the number of removals required for the 2 sexes to become equally abundant in the removal sample.

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