What question did this study set out to answer?

To evaluate avian species richness, abundance, and distribution across five distinct wetland microhabitats while assessing the ecological impact of invasive plant proliferation.

August 20, 2026Biodiversity

Understanding the bird diversity patterns and habitat stratification in a freshwater ecosystem

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To evaluate avian species richness, abundance, and distribution across five distinct wetland microhabitats while assessing the ecological impact of invasive plant proliferation.
Conducted monthly field surveys from February 2024 to March 2025 using fixed-point counts across five habitat zones: open water, riparian margins, floating vegetation, emergent vegetation, and upland areas in Assam, India.
Utilized geographic information system (GIS) analysis to evaluate vegetation patterns and track the spread of invasive Eichhornia crassipes across the wetland basin.
Recorded 55 bird species from 15 orders, 30 families, and 59 genera, with riparian zones exhibiting the highest species richness (33 species; Shannon–Wiener H′ = 2.89; Simpson 1 − D = 0.81) and upland zones showing the highest diversity index (29 species; H′ = 2.95).
Open water microhabitats exhibited the lowest bird diversity (7 species; H′ = 0.12; 1 − D = 0.04) due to extreme numerical dominance by the Lesser Whistling Duck.
GIS mapping confirmed rapid proliferation of invasive water hyacinth (Eichhornia crassipes), which fragmented open water areas and significantly reduced ecological heterogeneity.

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Implication

Field survey reveals distinct bird diversity across wetland microhabitats and degradation from invasive plants in a freshwater ecosystem, highlighting the need for basin-level conservation.

Cite This Study

Das et al. (2026) studied this question.

synapsesocial.com/papers/6a86b5da8a91293e6a1cd6d5 https://doi.org/10.1080/14888386.2026.2709855

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Implication

Field survey reveals distinct bird diversity across wetland microhabitats and degradation from invasive plants in a freshwater ecosystem, highlighting the need for basin-level conservation.

Understanding the bird diversity patterns and habitat stratification in a freshwater ecosystem

Key Points

Discussion

Implication

Cite This Study

Understanding the bird diversity patterns and habitat stratification in a freshwater ecosystem

Key Points

Discussion

Implication

Cite This Study

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