A method for estimating fall adult sex ratios from production and survival data
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Abstract
This paper presents a method of utilizing data relating to the production and survival of a bird population to estimate a basic fall adult sex ratio. This basic adult sex ratio is an average value derived from average production and survival rates. It is an estimate of the average sex ratio about which the fall adult ratios will fluctuate according to annual variations in production and survival. The basic fall adult sex ratio has been calculated as an asymptotic value which is the limit of an infinite series wherein average population characteristics are used as constants. Graphs are provided that allow the determination of basic sex ratios from production and survival data of a population. Where the respective asymptote has been determined, it may be possible to estimate various production and survival rates by use of variations of the formula for estimating the asymptote.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A method for estimating fall adult sex ratios from production and survival data |
| Series title | Journal of Wildlife Management |
| DOI | 10.2307/3798647 |
| Volume | 29 |
| Issue | 1 |
| Year Published | 1965 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 8 p. |
| First page | 185 |
| Last page | 192 |