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Avian assemblage along an urban gradient: diversity, abundance and richness Cover

Avian assemblage along an urban gradient: diversity, abundance and richness

Open Access
|Jul 2020

Abstract

Diversity in avian assemblages of urban (UR), peri-urban (PE) and rural (RU) areas was studied to explore variations in the avian community dynamics in rural – urban gradient. For this purpose, sampling was done from September 2013 to August 2015. A total of 35 sites, each covering an area of 300 m2 were sampled by using point count method. At each site, randomly three points (minimally 5 m apart from each other) were selected to study the birds. According to data, species richness (F2, 32=47.18, P<0.001) varied significantly along a rural-urban gradient. A significant difference in avian density per sampling site (F2, 32=105.41, P<0.001) was also observed along urbanization gradient. In PE and RU areas, avian assemblages were more diverse than UR areas. Among avian guilds, omnivores were the most abundant in UR while insectivores in PE areas. Frugivores and carnivores were abundant in RU areas. Granivores were recorded in all habitats with similar diversity. A close association was recorded in bird density of RU and PE areas than UR areas. Bird species richness and diversity showed negative correlation with built area and positive correlation with vegetation cover in an area.

DOI: https://doi.org/10.2478/orhu-2020-0004 | Journal eISSN: 2061-9588 | Journal ISSN: 1215-1610
Language: English
Page range: 49 - 64
Submitted on: Mar 23, 2020
Accepted on: Jun 13, 2020
Published on: Jul 9, 2020
Published by: MME/BirdLife Hungary
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2020 Ghulam Mustafa Rashid, Abida Butt, Abdul Qadir, Mirza Habib Ali, published by MME/BirdLife Hungary
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.