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# Around a Nigerian hydropower reservoir, semi-natural patches held more bird diversity than the disturbed edges
- URL: https://intelligence.wildlandseco.com/2026-09-25-shiroro-reservoir-bird-diversity/
- Published: 2026-09-25T11:24:44.000Z
- Updated: 2026-09-25T11:24:44.000Z
- Description: Across seven Shiroro Reservoir sites, taxonomic and functional diversity varied more by location and disturbance than by broad wet–dry season counts.
- Author: Benjamin Worlund
- Tags: reservoir birds, Nigeria, Infrastructure ecology, habitat heterogeneity, Wildlife, Freshwater, biodiversity, Monitoring, #ecological-intelligence, #brief-2026-09-25, #global-radar, #peer-reviewed, #geo-africa

Evidence

Peer-reviewed

Geography

Shiroro Reservoir, Niger State, Nigeria

System

Hydropower reservoir / savanna landscape

## WHAT THE EVIDENCE SAYS

Surveys around seven Shiroro Reservoir sites recorded 21,418 individual birds representing 179 species. Semi-natural habitats supported higher taxonomic and functional diversity than more disturbed or infrastructure-proximate locations; broad species-richness and Shannon responses were not strongly seasonal, although some functional metrics differed between wet and dry periods.

## WHY IT MATTERS / OUR READ

Large infrastructure landscapes are not ecologically uniform. Retained vegetation structure and semi-natural habitat around reservoir margins can matter for community composition even where the reservoir itself dominates the map.

## CAVEATS / UNCERTAINTY

This is observational evidence from one reservoir landscape, not a before–after hydropower experiment. Site differences are correlated with several habitat and disturbance factors, and measured vegetation variables explained only part of the variation.

## SOURCE

Frontiers in Ecology and Evolution  
[View original evidence ↗](https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2026.1860989/full?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-09-25

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-09-25/)