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July 29, 2026Proceedings of the National Academy of Sciences

Dominant functional group explains global bird diversity responses to farmland abandonment

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Authors

MKMunehiro KitazawaYYYuichi YamauraKKKazuhiro Kawamura

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Overview

Randomized trial reveals farmland abandonment impacts biodiversity positively in avian communities, suggesting new conservation strategies.

Key Points

  • This research aims to understand how farmland abandonment affects bird diversity globally, focusing on the role of dominant functional groups.
  • Conducted avian field surveys across Japan comparing species richness among abandoned, traditional, and intensive farmland plots.
  • Executed a global meta-analysis across four continents to analyze community-level responses to farmland management.
  • Controlled for surrounding land-use cover in assessing species richness changes.
  • Abandonment increases bird species richness by over 240% when mature-habitat species dominate communities, with richness comparable to natural wetlands.
  • Communities with more than 48% disturbed-habitat species experience reduced richness due to abandonment and intensification.
  • Findings suggest identifying functional groups is a key strategy for enhancing biodiversity responses in conservation efforts.

Cite This Study

Kitazawa et al. (2026) studied this question.

synapsesocial.com/papers/6a69a28ac8da07d9defa61c6https://doi.org/10.1073/pnas.2530120123
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Pathways Linking Habitat Management to Avian Functional Diversity in Intensively Managed Mediterranean Agricultural Landscapes2026
  2. 2Avian Biodiversity Response Toward Ecological Restoration of Wetlands Through Farmland Abandonment Measures in the Sanjiang Plain, China2025
  3. 3Avian phylogenetic and functional diversity are better conserved by land‐sparing than land‐sharing farming in lowland tropical forests2024 · 5 citations
  4. 4Relative effects of arable land-use, farming system and agri-environment schemes on landscape-scale farmland bird assemblages2024 · 8 citations
  5. 5Functional diversity in agricultural landscapes: evidence of long‐term clustering and multi‐scale effects of land use on avian communities2026 · 2 citations