Identifying ecosystem services using multiple methods: Lessons from the mangrove wetlands of Yucatan, Mexico

The failure to properly account forthe total value of environmental and natural resourcesresults in socially undesirable overexploitation anddegradation of complex ecosystems such as mangrovewetlands. However, most ecosystem valuation researchtoo often focuses on the question of “what is the value” and not enough on “what peoplevalue.” Nonmarket valuation practitioners have usedqualitative approaches in their work for some time.Yet, the relative strengths and weaknesses ofdifferent qualitative methods have been more thesubject of speculation than systematic research. Thestatistical examination of focus group and individualinterview data on ecosystem services illustrates thatthe two methods generate important but differentecosystem service data. Further, the data show thatthe use of multiple data collection methods offers amore robust understanding of what people value. Copyright Kluwer Academic Publishers 2000