Avian Species Diversity in Different Habitats of Shivamogga, Karnataka, India
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- 1Department of Zoology, Sahyadri Science College, Kuvempu University, Shivamogga, Karnataka, INDIA.
CORRESPONDENCE
Krishna Naik Lokesh Naik
Department of Zoology, Sahyadri Science College, Kuvempu University, Shivamogga, Karnataka, INDIA.
Received: 04-02-2023; Revised: 18-03-2023; Accepted: 14-04-2023.
Volume 12, Issue 1 · pp. 160-171 · 2023 · DOI: 10.5530/ajbls.2023.12.22
ABSTRACT
Background: Avifaunal diversity and its abundance measures the quality of the ecosystem. Diversified landscapes were assumed to furnish more niches or supportive resources, which in turn helps to increase the diversity of avifauna.Aim: To assess the diversity of avifauna and its status in different habitats of Shivamogga taluk.Materials and Methods: Field exploration for assessing the bird diversity was undertaken in the four different habitats of Shivamogga Taluk. The point count method and line transects were used for gathering data on the abundance and diversity of birds in all four different habitats.Results: The present study was conducted in the study site for a period of one year. A total of 6,866 individual birds of 137 species, representing 53 families and 18 orders, were observed, and 4 Near Threatened species and 3 Vulnerable species were recorded from the study area. Significant variation in avian species richness was observed from the four study sites (F=10.36, p<0.0001, df=5). Fisher alpha indices, which consider both richness and abundance, were higher in Site 1 (18.36) and lowest was observed in Site 2 (11.32). The order Passeriformes dominated the bird community with 26 families and 57 species. Seven foraging guilds were observed in the study area. Insectivorous birds, with 46 species, were found to be dominant. Principal Component Analysis (PCA) was used to find the positive correlation between the Near Threatened, Vulnerable species, and the study sites.Conclusion: These findings implicate that the study area has a good number of avian species diversity. Each habitat has its own specialist species. Avian species richness was found to be higher in the forest ecosystem, while dominance and abundance were more in the agrarian ecosystem. Alpha diversity was measured to comprehensively evaluate the quality of the different habitats.
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Shairali, S. A., & Naik, K. N. L. (2023). Avian Species Diversity in Different Habitats of Shivamogga, Karnataka, India. Asian Journal of Biological and Life Sciences, 12(1), 160-171. https://doi.org/10.5530/ajbls.2023.12.22
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