Approximating the distribution of recreational visits from on-site survey data

J Environ Manage. 2009 Apr;90(5):1850-3. doi: 10.1016/j.jenvman.2008.12.004. Epub 2009 Jan 6.

Abstract

While convenient and often used, on-site surveys are biased by the fact that users who visit the site more often are proportionately more likely to be sampled. This so-called avidity or size biased sampling results in over-estimating the visitation patterns of the average user. This analysis develops a rule of thumb method that may easily be applied by recreation site managers to visitation data collected on-site in order to infer behavior of the average user of the site. The key assumption that drives the derivation is that the visitation data of users is logarithmically distributed. To evaluate the methodology, we analyze several data sets of recreational users assuming that they reflect the populations of users and from these construct hypothetical on-site samples.

Publication types

  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Bias
  • Conservation of Natural Resources
  • Data Collection / methods*
  • Humans
  • Recreation*
  • Statistics as Topic*
  • United States