Diversity of Bird Species and Conservation Strategies in Mangrove Ecosystem in Ado Odo Wetland Ogunnstate Southwest Nigeria
2021
E. F. Okosodo, Sarada Prasad Mohapatra

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Diversity of bird species in Ado odo wetland Southwest Nigeria was examined in this study. Birds of the same species within 10m of each other were counted in the same group. Human threats to the study area were also examined. Forty-two wetlands within the Ado – Odo Wetlands complex were surveyed. Data obtained from the field survey were entered into excel (version 15) spread sheet prior to both descriptive (tables, frequency and percentage frequency, graph, pie and bar charts) and analytical statistics. The computer PAST Model version 3 was used to analyze bird species diversity indices, SHE analysis, and plot generalized linear model graph. A total number of 120 bird spices belonging 39 families and 15 orders were enumerated in the study area.The result indicates that Ardeidae has the highest number of bird species (12), this is followed by Ploceidae with 9 bird species. The result of the relative abundance of bird species in the study area indicates that it was higher in the dry season (0.0055) than the wet season 0.0013). The Shannon diversity index showed that it was higher during the dry season (4.53) than the wet season (4.38). Bird species diversitywere higher in lakes and ponds than marshyland The status of the bird species in the study area indicates that resident bird species were highest (87), followed by Intra Africa Migrants (17) and Palearctic migrants (5). The total number of bird species recorded during the dry season was (81%) while the wet season is (19%)

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