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This research aims to understand how urban landscapes filter bird species in biodiverse regions like Medellín.

February 5, 2026EcologyOpen Access

Urban landscapes as ecological filters: Insights from a Neotropical bird assemblage

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Research shows urban ecological filtering impacts bird species richness in diverse Neotropical regions, highlighting planning challenges.

This research aims to understand how urban landscapes filter bird species in biodiverse regions like Medellín.
Analyzed bird species across various urbanization levels in Medellín and surrounding areas.
Categorized land cover as urban and nonurban, including forests and plantations.
Used species richness and composition to assess ecological filtering.
Well-preserved and second-growth forests had the highest bird species richness.
Urban areas with more than 75% built cover had significantly lower bird richness.
Bird assemblages in urban areas resembled those found in open areas, indicating extensive filtering.

Garizábal‐Carmona et al. (2026) studied this question.

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