Habitat heterogeneity as a determinant of avian diversity and richness in a rural riverine landscape of central Bangladesh

Habitat heterogeneity as a determinant of avian diversity and richness in a rural riverine landscape of central Bangladesh | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Ecology and Evolution This is a preprint and has not been peer reviewed. Data may be preliminary. 12 May 2026 V1 Latest version Share on Habitat heterogeneity as a determinant of avian diversity and richness in a rural riverine landscape of central Bangladesh Authors : Jakaria Hasan Shamim 0009-0005-5098-6810 [email protected] and Habibon Naher [email protected] Authors Info & Affiliations https://doi.org/10.22541/authorea.15003025/v1 58 views 18 downloads Contents Abstract Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Birds serve as effective bioindicators for assessing various habitats both qualitatively and quantitatively. This study aimed to evaluate bird diversity and understand how habitat structure influences species composition. Data were collected over a continuous period of twelve months, from June 2024 to May 2025, using transect line surveys and point count methods for avian data, along with a five-point sampling approach for habitat structure. A total of 4690 individuals from 83 bird species, 16 orders, and 43 families were recorded. Statistical analysis with ANOSIM confirmed a significant difference in community composition among different habitats (R = 0.646, P = 0.001). Diversity indices indicated that the Human Settlement hosted the most diverse, complex, and rich bird community (S=45, H’=3.20). Additionally, the study found that birds mainly used the Ground (33.2%) and Tree (21.8%) strata, with vertical strata usage being significantly linked to species identity (p < 0.001). Principal Component Analysis (PCA) revealed that habitat structural variables strongly influenced bird community metrics. The first principal component (PC1), explaining 48.2% of the variance, was closely correlated with vertical vegetation structure and habitat complexity. Variables such as tree layer diversity, canopy coverage, average tree height, and average shrub height had high positive loadings on PC1, indicating a strong ecological link between structurally rich habitats and bird diversity. The study demonstrated that local habitat heterogeneity is a key factor shaping bird community organization, which is crucial for conservation planning. Information & Authors Information Version history V1 Version 1 12 May 2026 Collection Ecology and Evolution Authors Affiliations Jakaria Hasan Shamim 0009-0005-5098-6810 [email protected] Jagannath University, Dhaka, Bangladesh, 1100 View all articles by this author Habibon Naher [email protected] Jagannath University, Dhaka, Bangladesh, 1100 View all articles by this author Metrics & Citations Metrics Article Usage 58 views 18 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Jakaria Hasan Shamim, Habibon Naher. 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