A Survey of Plant Species Diversity and Ecological Species Group from the Coastal Zone Of Boujagh National Park, Guilan, Iran

• Main Authors: Shahryar Saeidi Mehrvarz, Alireza Naqinezhad, Mokarram Ravanbakhsh, Narges Vasefi
• Format: Article
• Language: English
• Published: Union of Scientists in Bulgaria 2016-06-01
• Series: Ecologia Balkanica
• Subjects: Boujagh National Park; Plant species diversity; Caspian Sea; Iran.
• Online Access: http://web.uni-plovdiv.bg/mollov/EB/2016_vol8_iss1/089-099__eb.15135.pdf

The aim of this study was to identify the ecological species groups and investigate the diversity among them. The research area comprises in a coastal system of Boujagh National Park, inNorthern of Guilan Province, Iran. Vegetation sampling was carried out along 6 shoreperpendicular transects, ween minimum 153 m and maximum 5562 m long. A total of 52 plot of 25square meters were taken in transects. In each sampled plot, the cover percentage value of eachspecies was estimated using Bran-Blanquet scales. Vegetation classified using Two-Way IndicatorSpecies Analysis (TWINSPAN). Classification of plots showed four vegetation groups: Convolvuluspersicus - Crepis foetida, Argusia sibirica, Eryngium caucasicum - Juncus acutus, Rubus sanctus. Plantdiversity in these vegetation groups have been evaluated. The comparison of diversity indicesamong groups were performed with ANOVA test. Results of analysis of variance in speciesdiversity indices showed significant differences among the groups in terms of biodiversity indices.The survey of variation in the groups showed that group 3 had the highest and group 2 had thelowest Shannon-Wiener’s, Simpson’s and Fisher’s diversity indices respectively. In Menhinink’sand Margalef’s richness indices group 2 and 3 had the highest and group 1 had the lowest measure.In Sheldon’s evenness index group 2 had the highest and group 3 had the lowest measure. Finally,the overall survey of indices showed that groups 1 and 2 had less diversity but had more evennessthan groups 3 and 4.This shows that despite suitable living conditions for the growth anddevelopment of vegetation in the groups 3 and 4, the abundance of species has declined Because ofthe destruction done in this section.