Indicator plant species of alpha diversity in Kuyucak Mountain district

Aim of study:The main purpose of the study is to determine the site factors affecting bird diversity. Area of study: This study was performed in the Çandır District, Isparta which is located inner part of the Western Mediterranean region.Material and methods: In present study, Observations were conducted regularly in a total of 43 sample sites in Çandır District, throughout each month in 2016. Also, each sample site was observed using point-counting techniques from the direct observation techniques. In the present study, alpha diversity (Species richness, Menhinick, Margalef, Shannon-Wiener, Brillouin, Simpson, Berger-Parker, and Fisher's Alpha) values were calculated, and significant variables were determined by using correlation analysis.Main results: A significant correlation (p=0.05) was determined between alpha diversity values and both environmental and climatic variables. Principal component analysis (PCA) was used to compare alpha diversity indexes with each other. Species richness, Shannon, and Brillouin indexes were determined as the variables having the strongest correlation with environmental variables.Highlights: A better understanding of factors affecting bird species diversity, which are sensitive species of ecosystems, is of great importance for the detection and monitoring of future changes. Especially when it is considered in terms of parameter selection for modeling studies, the mentioned importance increases even more. Therefore, it is thought that the results of this research will be important both in terms of studies conducted in Çandır District and in terms of studies on bird diversity.

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Determining Environmental Factors Affecting Bird Diversity

Süel

Akdemir

Ertuğrul

et al. 2021

Kastamonu Üniversitesi Orman Fakültesi Dergisi

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Comparison of plant species diversity, site index, and mean tree ring width values of different altitudinal zones in Turkish pine stands

Özdemir,

Erfidan

2024

Turkish Journal of Forestry | Türkiye Ormancılık Dergisi

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Diversity and productivity have consistently been central topics in forestry research. With the advent of climate change, the need to better understand increasingly scarce natural resources has become critical for sustainable use. In this study, differences in alpha species diversity, site index, and tree-ring widths across three different altitudinal zones were analyzed. Additionally, the relationships between these parameters and environmental variables were analyzed. Initially, a normality test was applied to the data. Due to the failure to meet the normality assumption, non-parametric methods were preferred for data analysis. The Kruskal-Wallis test was applied to identify differences between groups. To determine the relationships of alpha species diversity, site index, and tree-ring width with environmental variables, Spearman correlation analysis was used, focusing on the Shannon and Simpson indices. Our results showed that Shannon and Simpson diversity differ across different altitudinal zones, while no differences were observed in terms of site index and annual ring growth. On the other hand, Bio1 and Bio12 were identified as the most influential variables on diversity. Additionally, there was a relatively low negative correlation between the site index and slope variable and between annual ring growth and the radiation index variable. The findings obtained from this study provided important insights for forestry management. In particular, understanding the effects of altitude-dependent abiotic factors on species diversity and tree ring growth will enable more accurate planning.

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Ekolojik Bakış Açısı İle İklim Değişimi Senaryoları

Özdemir¹,

Özkan²,

Mert³

2020

Biological Diversity and Conservation

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Indicator plant species of alpha diversity in Kuyucak Mountain district

Cited by 3 publications

References 17 publications

Determining Environmental Factors Affecting Bird Diversity

Determining Environmental Factors Affecting Bird Diversity

Comparison of plant species diversity, site index, and mean tree ring width values of different altitudinal zones in Turkish pine stands

Ekolojik Bakış Açısı İle İklim Değişimi Senaryoları

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