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dc.contributor.authorLópez-Toledo, Leonel
dc.contributor.authorMurillo-García, A.
dc.contributor.authorMartínez-Ramos, M.
dc.contributor.authorPérez-Salicrup, D.
dc.date.accessioned2021-02-10T00:30:43Z
dc.date.available2021-02-10T00:30:43Z
dc.date.issued2011
dc.identifier.issn0378-1844
dc.identifier.urihttp://hdl.handle.net/20.500.12634/867
dc.description.abstractGuaiacum sanctum is a timber tree species from the Americas, considered threatened in eleven different countries, including Mexico, and listed in CITES Appendix II. This species is currently harvested legally in the southern Mexican state of Campeche. Despite its protected status, the current condition of its populations and the effects of harvesting upon them have not been assessed. The conservation status of four unlogged populations were evaluated across Central Campeche by documenting their densities and demographic structures, and then compared the size class demographic structures of one unlogged and three logged populations at different times after harvest (3, 8 and 20 years) to evaluate the effects of timber harvesting upon population structure. Additionally, a regeneration index (proportion of seedlings within the population) was estimated for each of the seven populations. Densities of G. sanctum varied from 278 to 1732 stems/ha with ≥1cm at 1.3m·height in Campeche. Differences were found in the population structures of unlogged populations, although the density of seedlings and trees was high in all of the sites. Contrary to expectations, higher densities were found in all size classes in logged populations. Results suggest that current logging practices do not have a drastic negative effect on the density of remaining individuals. Although the results indicate that G. sanctum in Campeche is not locally endangered, it is recommend that it be maintained in CITES Appendix II.
dc.description.sponsorship
dc.language.isoen
dc.relation.urlhttps://www.redalyc.org/articulo.oa?id=33921204003
dc.rightsScientific Information System Redalyc ® Network of Scientific Journals from Latin America and the Caribbean, Spain and Portugal Non-profit academy-owned Open Access
dc.subjectCONSERVATION
dc.subjectFORESTS
dc.subjectMEXICO
dc.subjectCITES
dc.subjectENDANGERED SPECIES
dc.subjectTREES
dc.subjectPOPULATIONS
dc.subjectRESEARCH
dc.titleDemographic effects of legal timber harvesting on Guaiacum sanctum L., an endangered neotropical tree: implications for conservation
dc.typeArticle
dc.source.journaltitleInterciencia
dc.source.volume36
dc.source.issue9
dc.source.beginpage650
dc.source.endpage656
html.description.abstractGuaiacum sanctum is a timber tree species from the Americas, considered threatened in eleven different countries, including Mexico, and listed in CITES Appendix II. This species is currently harvested legally in the southern Mexican state of Campeche. Despite its protected status, the current condition of its populations and the effects of harvesting upon them have not been assessed. The conservation status of four unlogged populations were evaluated across Central Campeche by documenting their densities and demographic structures, and then compared the size class demographic structures of one unlogged and three logged populations at different times after harvest (3, 8 and 20 years) to evaluate the effects of timber harvesting upon population structure. Additionally, a regeneration index (proportion of seedlings within the population) was estimated for each of the seven populations. Densities of G. sanctum varied from 278 to 1732 stems/ha with ≥1cm at 1.3m·height in Campeche. Differences were found in the population structures of unlogged populations, although the density of seedlings and trees was high in all of the sites. Contrary to expectations, higher densities were found in all size classes in logged populations. Results suggest that current logging practices do not have a drastic negative effect on the density of remaining individuals. Although the results indicate that G. sanctum in Campeche is not locally endangered, it is recommend that it be maintained in CITES Appendix II.


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