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Aileen Grace D. Delima

  • Biodiversity Journal, 11 (3): 771-780

    Christian Yancy A. Yurong, Aileen Grace D. Delima, Leo Manuel B. Estaña, Lief Erikson D. Gamalo & Marion John Michael M. Achondo
    Community Structure of Road Associated Avifauna along the Urban Gradient in Mintal, Davao City, Southern Philippines
    https://doi.org/10.31396/Biodiv.Jour.2020.11.3.771.780

    ABSTRACT
    The community structure of avifauna along the urbanization gradient in Mintal, Davao City was surveyed and analyzed. A total of 4,210 individuals from 34 species belonging to 23 families were recorded. Seven species are Philippine endemics and five are introduced species. Correlation and regression analysis showed a positive relationship between increasing vegetation cover with species richness and a negative relationship with abundance. Oppositely, increasing urbanization (increase built-up cover, pedestrian and traffic rate) were observed to have positive relationship to abundance but negative relationship to species richness. Thus, the avian community in the urbanization gradient of Mintal, Davao City follows the general accepted trend that in heavily disturbed areas, species richness is at its lowest while total bird abundance is at its peak. This study also suggests the importance of green spaces with lesser traffic rate in urban landscapes that could support higher avian diversity which includes Philippine endemic species.