ArticleEcology and evolution2026
Abundance, Distribution and Population Trends of Waterbirds in the Usangu Wetland: A Biodiversity Hotspot Threatened by Human Activities.
Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
Waterbirds play essential ecological function contributing to maintenance of species diversity, pest control, seed dispersal, and vectors for invertebrates. Approximately one-third of the waterbird assemblage inhabits wetland environments. However, waterbirds and their habitats are threatened by human activities capable of disrupting ecosystem. This study was conducted in Usangu Wetland Important Bird Areas to investigate the abundance, distribution, and population trends of wild avian species. Bird counting survey and questionnaire were conducted from to elicit information about abundance and distribution, and bird population trend respectively between March and May, 2022. Bird counts were conducted using 2.5 km line transects at three sites. Each site had six transect replicates to estimate relative abundance and distribution. Structured and key informant interviews were used to elicit trends of bird populations over the past 20 years and their influencing factors. Data were analyzed using R-studio version 4.0.3. Furthermore, content analysis was employed to scrutinize perceived population trends. The study cataloged a total of 34 distinct species of waterbirds. The most prevalent species included lesser moorhen (
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