Correction of bias in belt transect studies of immotile objects
Journal of Wildlife Management
By: David R. Anderson and R.S. Pospahala
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Abstract
Unless a correction is made, population estimates derived from a sample of belt transects will be biased if a fraction of, the individuals on the sample transects are not counted. An approach, useful for correcting this bias when sampling immotile populations using transects of a fixed width, is presented. The method assumes that a searcher's ability to find objects near the center of the transect is nearly perfect. The method utilizes a mathematical equation, estimated from the data, to represent the searcher's inability to find all objects at increasing distances from the center of the transect. An example of the analysis of data, formation of the equation, and application is presented using waterfowl nesting data collected in Colorado.
Suggested Citation
Anderson, D., and Pospahala, R., 1970, Correction of bias in belt transect studies of immotile objects: Journal of Wildlife Management, v. 34, no. 1, p. 141-146, https://doi.org/10.2307/3799501.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Correction of bias in belt transect studies of immotile objects |
| Series title | Journal of Wildlife Management |
| DOI | 10.2307/3799501 |
| Volume | 34 |
| Issue | 1 |
| Year Published | 1970 |
| Language | English |
| Publisher | Wiley |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 6 p. |
| First page | 141 |
| Last page | 146 |
| Country | United States |
| State | Colorado |