The Efficiency of Indices of Richness, Evenness and Biodiversity in the Investigation of Species Diversity Changes (Case Study: Migratory Water Birds of Parishan International Wetland, Fars Province, Iran)

Goudarzian, Pardis

doi:10.15406/bij.2017.01.00007

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…That was contradictive with Margalef that had high value caused by the number of species. According to Magurran (2004) and Goudarzian and Erfanifard (2017), that is namely biased toward rare species. in this study, the bias of the Margalef index was the identity of mangrove species that have a small number of species.…”

Section: Discussionmentioning

confidence: 99%

Comparison of four species diversity indices in mangrove community

2021

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Abstract. Mulya H, Santosa Y, Hilwan I. 2021. Comparison of four species diversity indices in mangrove community. Biodiversitas 22: 3648-3655. Mangrove communities have a tidal environment that affects their species composition, which may be finite but the abundance may vary between species individuals. Many ecologists have used indices to measure species diversity without knowing the best suitable index for the community and its statistical characteristics. Therefore, this study aimed to compare species diversity indices in mangrove communities to obtain the best and most appropriate index for mangrove diversity. The comparison was done using the Simpson (1-D), Shannon, Menhinick, and Margalef indices, which were widely used and considered the best measures in various communities. The data was obtained from the field sampling using a single plot of 80×40 m2, and then it was simulated to obtain standardized variables so that the indices got the same treatment. It was calculated with descriptive statistics and species diversity indices among other Simpson, Margalef, Shannon, and Menhinick indices. Pearson correlation and UPGMA cluster were used to get conformity based on the best index criteria. The results showed the Margalef index was the best in performance that passed the assessment criteria more than Simpson (1-D), Shannon, and Menhinick index. It had a low correlation with sample variance and normality marker but had high variability of the index value. It was also sensitive to the number of species, good reduced individual sample, and good correlation with similar indices. Thus, we concluded that the Margalef index was the best index for mangrove community diversity measurement. The index was recommended for monitoring and evaluating the species diversity assessment for the mangrove community. It should not use several species diversity indices with similar meaning.

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Section: Discussionmentioning

confidence: 99%

Comparison of four species diversity indices in mangrove community

2021

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“…The evenness index serves as a metric for assessing species balance, as it is influenced by the number of animal populations within a given ecosystem. Goudarzian and Erfanifard (2017) stated that relying solely on the evenness index is insufficient for assessing species diversity. Utilizing the Simpsons analysis to calculate a reliable index if needed is advisable.…”

Section: Evenness Indexmentioning

confidence: 99%

Diversity, Evenness, and Dominance Index of Amphibians in Lowland Rain Forest: A Case of Anura Ordo in Way Kambas National Park, Indonesia

Dewi,

Zania,

Damayanti

et al. 2024

J. Sylva Lestari

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Amphibian is a vertebrate animal whose life is always associated with water. Anura ordo has the most extensive spread in Indonesia. A study on amphibians in Way Kambas National Park has never been conducted. Therefore, the purpose of this research was to find out the diversity, evenness, dominance, temperature, and humidity of three various habitats of amphibians of Anura ordo in Rawa Bunder National Park Management Resort (RPTN Rawa Bunder), Way Kambas National Park, Indonesia. Amphibian data was collected using the visual encounter survey and line transect methods. The results of this research discovered amphibians in 6 families, which consisted of 13 species of amphibians based on observations in three different habitat types. The Shannon-Wiener diversity index (H') was categorized as moderate with the H' of 1.91–2.27. The evenness index (E) was considered stable, ranging between 0.87–0.91. The dominant index (D) falls into the low dominance group, with the D value ranging between 0.13–0.19. This shows that no dominant species is present. Keywords: Anura, amphibians, biodiversity, predominance, Way Kambas National Park

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Wetland characteristics affect abundance and diversity of wintering birds: A case study in South‐Western Iran

Malekian

Salarpour

Ranaie

2022

Ecology and Evolution

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Water availability is an important driver of bird population change, and its effects are likely to increase in coming decades under climate change. Here we assess effects of temperature, precipitation, and water area on wintering bird populations in Miyangaran Wetland in southwestern Iran. Modeling methods including, generalized linear model (GLM) and hierarchical partitioning were used to examine the relative importance of variables. The number of wintering species, inhabiting the wetland, varied among years, ranging from 10 to 48 species. The total number of wintering birds showed a significant decreasing trend. A significant increasing trend was obtained for shorebirds, while waterfowl species were significantly decreased. The GLM showed that species abundance, richness, and diversity were significantly correlated with the standardized precipitation index (SPI), annual precipitation, and normalized difference water index (NDWI). Hierarchical partitioning analysis also identified NDWI, SPI, and annual precipitation as the most important variables with average independent effects of 35, 36 (p < .01) and 17% (p < .05), respectively. Our results revealed that the water area plays a major role in determining the structure of bird diversity and abundance, affecting both waterfowl and shorebirds.

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The Efficiency of Indices of Richness, Evenness and Biodiversity in the Investigation of Species Diversity Changes (Case Study: Migratory Water Birds of Parishan International Wetland, Fars Province, Iran)

Cited by 5 publications

References 18 publications

Comparison of four species diversity indices in mangrove community

Comparison of four species diversity indices in mangrove community

Diversity, Evenness, and Dominance Index of Amphibians in Lowland Rain Forest: A Case of Anura Ordo in Way Kambas National Park, Indonesia

Wetland characteristics affect abundance and diversity of wintering birds: A case study in South‐Western Iran

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