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<p>Agricultural and other intensive human land uses cause drastic changes to ecosystems, which persist after these activities have stopped. One way to mitigate these impacts is through restoration of post-agricultural lands; however, the interplay between agricultural history and restoration remains poorly understood. This is particularly true for interactions among species. We investigated the effect of experimental restoration of longleaf pine (<i>Pinus palustris</i> Mill.) forests with differing land-use histories on flower visitation networks. We found that restoration of open canopy conditions caused large increases in floral and floral visiting insect abundance and species richness. After restoration, plots with no history of agriculture supported more specialized flower visitations and networks than in post-agricultural plots. These results illustrate large positive effects of forest restoration and flowering of understory plants and flower visitation, along with a persistent agricultural land-use legacy affecting the structure of flower visitation networks that remains evident 66&#xa0;years after agricultural abandonment.</p>

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Land-Use Legacies Affect Flower Visitation Network Structure After Forest Restoration

  • 期刊论文

  • 发表日期：

    2025年3月3日

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  • Sabrie J. R. Breland,
  • Nash E. Turley,
  • Jason Gibbs,
  • Rufus Isaacs,
  • Lars A. Brudvig

摘要

Agricultural and other intensive human land uses cause drastic changes to ecosystems, which persist after these activities have stopped. One way to mitigate these impacts is through restoration of post-agricultural lands; however, the interplay between agricultural history and restoration remains poorly understood. This is particularly true for interactions among species. We investigated the effect of experimental restoration of longleaf pine (Pinus palustris Mill.) forests with differing land-use histories on flower visitation networks. We found that restoration of open canopy conditions caused large increases in floral and floral visiting insect abundance and species richness. After restoration, plots with no history of agriculture supported more specialized flower visitations and networks than in post-agricultural plots. These results illustrate large positive effects of forest restoration and flowering of understory plants and flower visitation, along with a persistent agricultural land-use legacy affecting the structure of flower visitation networks that remains evident 66 years after agricultural abandonment.