Analysis of the population structure as a rapid indicator of the conservation status of threatened tree species. The case of Resinanthus aromaticus in central Veracruz, Mexico

  • Olivia Palacios-Wassenaar Centro de Investigaciones Tropicales de la Universidad Veracruzana
  • Gonzalo Castillo-Campos Red de Biodiversidad y sistemática. Instituto de Ecología A.C., Carretera antigua a Coatepec No. 351. El Haya. Xalapa, Veracruz, México. C.P. 91070. Tel: (228) 842-1800 ext. 3106.
  • Santiago Mario Vázquez-Torres Centro de Investigaciones Tropicales de la Universidad Veracruzana.
keywords: endangered species, endemic species, population structure, semideciduos tropical forest skewness

Abstract

In order to quickly evaluate the conservation status of threatened tree species, we assessed the density and population structure in size categories of Resinanthus aromaticus; an endangered endemic timber tree, in five study sites covering 0.67 ha in central Veracruz. The analysis of population structure was performed using three approaches: the adjustment of population size distribution to the log-normal curve, the proportion of juveniles to adults, and the skewness of population size distributions. Comparing the skewness of population size distributions was the most appropriate method to identify the population in better conservation status. The results of this study indicate that the population density of R. aromaticus shows a reduction of 57 % compared to previous studies and the analysis of population size distributions skewness could be used as a quick method to identify threatened populations of tree species. According to the IUCN Red List criteria, this species should be kept in the category “endangered”.

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Author Biographies

Olivia Palacios-Wassenaar, Centro de Investigaciones Tropicales de la Universidad Veracruzana
Egresada del Doctorado en Ecología Tropical
Gonzalo Castillo-Campos, Red de Biodiversidad y sistemática. Instituto de Ecología A.C., Carretera antigua a Coatepec No. 351. El Haya. Xalapa, Veracruz, México. C.P. 91070. Tel: (228) 842-1800 ext. 3106.
Red de Biodiversidad y sistemática.  Editor responsable de la Flora de Veracruz.
Santiago Mario Vázquez-Torres, Centro de Investigaciones Tropicales de la Universidad Veracruzana.
Académico Investigador. Botánico honorario de la Universidad Federico II de Nápoles, Italia; miembro del Grupo Especialista en Cycadas de la Unión Internacional para la Conservación de la Naturaleza.
Analysis of the population structure as a rapid indicator of the conservation status of threatened tree species. The case of <em>Resinanthus aromaticus</em> in central Veracruz, Mexico
Published
2016-06-10
How to Cite
Palacios-Wassenaar, O., Castillo-Campos, G., & Vázquez-Torres, S. M. (2016). Analysis of the population structure as a rapid indicator of the conservation status of threatened tree species. The case of Resinanthus aromaticus in central Veracruz, Mexico. Botanical Sciences, 94(2), 241-252. https://doi.org/10.17129/botsci.271
Section
ECOLOGY / ECOLOGÍA