Estimating natural resource harvests: Conjectures?

Mary C.S. Menton, Anna Lawrence, Frank Merry, Nick D. Brown

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Estimates of natural resource harvests often inform rural conservation and development strategies. Retrospective household surveys remain one of the most commonly employed methods for estimating harvests. Pair-wise comparisons of estimates from household surveys versus diary records were performed for household harvests in the Brazilian Amazon. Although diaries and surveys produce similar estimates of mean economic value for different product groups, 33% of product-level estimates showed a three-fold difference between methods with no consistent patterns in discrepancy direction. Significant differences in estimates for highly valued products (cash crops, game animals, and fish) together with higher respondent confidence in diaries may undermine household models based exclusively on surveys.

Original languageEnglish
Pages (from-to)1330-1335
Number of pages6
JournalEcological Economics
Issue number6
Publication statusPublished - 1 Apr 2010


  • Diaries
  • Informant accuracy
  • Methods comparison
  • NTFPs
  • Questionnaires
  • Wild harvests


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