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International Journal of Zoology and Applied Biosciences Research Article
Seasonal diversity of birds at Mavoor wetland, Kerala
Shaheer Ansari, V., Ali Akshad, M., Sathick, O. and Amsath, A.
Year : 2019 | Volume: 4 | Issue: 1 | Pages: 27-30
Received on: 04/25/2018
Revised on: 05/23/2018
Accepted on: 05/29/2018
Published on: 02/12/2019
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Shaheer Ansari, V., Ali Akshad, M., Sathick, O. and Amsath, A. ( 2019).
Seasonal diversity of birds at Mavoor wetland, Kerala
. International Journal of Zoology and Applied Biosciences, 4( 1), 27-30.
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Abstract
The diversity index of avifauna changed in the different months by the change in species composition. During the winter season, the number of resident and migratory species is increasing in number and local migratory species also changing the constancy in diversity. The flock of lesser whistling teal local movement happened during the favorable condition in Mavoor wetland. At Mavoor water birds, Dominance D is the highest index is 0.3339 in the month of October; the lowest value is 0.24 in the month of May. Shannon H is the highest index is 2.171 August and the lowest index is 1.091 in December. Evenness e^H/S: Highest is 0.7973 in August and the lowest 0.486 in March. Margalef species richness is highest in 3.135 and lowest 1.961 in the month of august At Mavoor non-water birds, Dominance D: Highest index 0.7133 in the month of May, and the lowest index is 0.542 in January. Shannon H: Highest index is 3.244 in the month of March, and the Lowest index is 0.9854 in January. Evenness e^H/S is the highest value 0.7863 in the month of November and 0.469 is the lowest value. Margalef richness is the highest 3.244 in the month of March and the lowest value 0.9854 in the month of January 2017.
Keywords
Wetland, Species Diversity, Seasonal Changes, Little cormorant.
