| Summary: | A forest ecosystem with high species
diversity is more resistant and healthy to all kinds of hazards such as fire,
insect, pollution sources. Species diversity plays an important role for
sustainability of the ecosystems. It is measured at alpha, beta and gamma
scales. This study was carried out to define the positive indicatory plants of
alpha diversity of woody plants. We used the data (presence-absence data for
plant taxa) obtained from the Kuyucak Mountain District which lying in roughly
north-south direction and located in the transmission zone of the Mediterranean
region. Simpson diversity (1-λ), Shannon-Wienner, Brillouin, Menhinick,
Margalef, Fisher α, reciprocal of Berger Parker (1/d) and Chao1 indices were
used to measure alpha diversity at each sample plot. The Wilcoxon rank-sum test
statistic was used to examine the relationships between the indices of species
diversity and binary data of the species. After defining the positive indicator
plants of woody plant diversity by considering all indices, the Wilcoxon
Rank-Sum test was re-applied by omitting in order those species to ensure their
indicator values. As a result of the analysis, it was found that Fontanesia
philliraeoides Labill., Phillyrea latifolia L. and Pistacia terebinthus L. are
most likely to be the positive indicator plants for woody and subsgrub plant
diversity.
|
|---|