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*En hemeroteca, SIBE-San Cristóbal
Use of indigenous knowledge for rapidly assesing trends in biodiversity: a case study from Chiapas, Mexico
Hellier, Augustine ; Newton, Adrian C. (coaut.) ; Ochoa Gaona, Susana (coaut.) ;
Clasificación: AR/333.95 / H4
Contenido en: Biodiversity and Conservation Vol. 8, no. 7 (October 1999), p. 869-889 ISSN: 0960-3115
Bibliotecas: San Cristóbal , Villahermosa
SIBE San Cristóbal
27026-20 (Disponible)
Disponibles para prestamo: 1
SIBE Villahermosa
VER000044 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal
Resumen en: Inglés |
Resumen en inglés

In order to evaluate the usefulness of rapid surveys of indigenous knowledge for as- sessing trends in biodiversity, a case study was undertaken in two rural communities, Juznajab and Muquenal, in Chiapas, Mexico. This involved the use of a variety of rapid rural appraisal (RRA) and participatory rural appraisal (PRA) techniques, including semi-structured interviews, transect walks and participatory mapping. These approaches were used in conjunction with analysis of land use maps and aerial photographs to evaluate recent changes in vegetation cover and abundance of utilised species. In both communities, the extent of forest cover was considered by local people to have declined substantially in recent decades, with an annual decline in forest cover of 0.3% and 0.6% estimated by local people in Juznajab and Muquenal, respectively. Results from RRA in- dicated that this has been accompanied by signi®cant declines in the abundance of useful species. In Juznajab 60% and 79%, and in Muquenal 96% and 85% of plants and animal species, respectively, were considered to have declined within living memory. These declines appear to result from over- utilization as well as habitat changes. For example, most of the tree species used for timber and the animal species used for meat were considered to have declined substantially in both communities. These results indicate that indigenous knowledge is potentially a valuable source of information about biodiversity trends, which could be assessed during Rapid Biodiversity Assessments and incorporated into the process of resource management by local communities. However, the con- tradictions recorded between assessments of vegetation change by local people and data obtained from other sources indicates the need for caution in the use of indigenous knowledge for this purpose.

The potential of local knowledge for monitoring changes in vegetation and biodiversity: a case study from Chiapas, Mexico / Augustine Hellier
Hellier, Augustine ;
Edinburgh, Scotland : University of Edinburgh, Institute of Ecology and Reource Management , 1996
Clasificación: CH/631.47097275 / H4
Bibliotecas: San Cristóbal
SIBE San Cristóbal
ECO010018087 (Disponible)
Disponibles para prestamo: 1

List of acronyms
1.0 Introduction
1.1 What is biodiversity?
1.2 Causes of biodiversity loss
1.3 Monitoring biodiversity
1.4 Indigenous knowledge
1.5 Case study . 1.6 Hypothesis
1.7 Objectives
2.0 Method
2.1 Primary sources
2.2 Secondary sources
3.0 Results of RRA in Juznajab
3.1 Present state of vegetation
3.2 Social changes
3.3 Land use changes
3.4 Changes in vegetation
3.5 Changes in utilised species abundances
4.0 Results of RRA in Muquenal
4.1 Present state of vegetation
4.2 Social Changes
4.3 Land use changes
4.4 Changes in vegetation
4.5 Changes in utilised species abundances
5.0 Results from secondary sources
5.1 Aerial photographs
5.2 Land use maps
5.3 Census data
5.4 Literature review
6.0 Discussion
6.1 Differences between sources of information
6.2 Evaluation of RRA information from the case study
6.3 Evaluation of remote sensing data from the case study
6.4 Evaluation of literature review data from the case study
6.5 Comparability of different sources
6.6 Value of local knowledge in monitoring
7.0 Conclusion
Appendices 1. Classification of aerial photographs
2. List of plant species quoted in text
3. Regression analyses for CCE from Juznajab
4. List of animal species quoted in text
5. Regression analyses for CSAE data from Juznajab
6. Regression analyses for CCE data from Muquenal
7. Census data