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<p>Urban ecosystems represent heterogeneous environments with mosaics of natural, semi-natural and man-made habitats, with plenty of vascular plants including native and alien species. In-depth biodiversity research in urban areas might be time- and personnel-consuming. Therefore, we selected six habitat types within 30 towns in Slovakia (Central Europe) to determine whether any urban habitats could serve as a ‘surrogate habitat’ for the total, alien and Red List vascular plant richness of the towns. We found 1054 vascular plant taxa overall; alien and Red List plants comprised 33.9% and 7.3% of all taxa, respectively. The most species-rich habitat was the cemetery (mean number of taxa = 121), while the town centre hosted the lowest mean number of plant taxa (87). The habitat type that best predicted total species richness in the study towns was the floodplain (RMSE ≈ 20 species, RRMSE = 8.5%). In the case of aliens, the number of species in railways and town centres could be used for the rapid estimation of total alien richness in towns (RMSE ≈ 8 species, RRMSE = 10.8%). For Red List species, none of the habitats (including combinations of two habitats) could be recommended for a rapid estimation, as their prediction errors were exceptionally high (RRMSE = 45–62%).</p>

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Habitat surrogates for plant richness as a tool for rapid biodiversity assessment in urban areas

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月15日

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  • Richard Hrivnák,
  • Ivana Svitková,
  • Michal Slezák,
  • Jana Májeková,
  • Pavol Eliáš Jr.,
  • Katarína Hegedüšová Vantarová,
  • Matej Dudáš,
  • Tomáš Čejka,
  • Marek Čiliak

摘要

Urban ecosystems represent heterogeneous environments with mosaics of natural, semi-natural and man-made habitats, with plenty of vascular plants including native and alien species. In-depth biodiversity research in urban areas might be time- and personnel-consuming. Therefore, we selected six habitat types within 30 towns in Slovakia (Central Europe) to determine whether any urban habitats could serve as a ‘surrogate habitat’ for the total, alien and Red List vascular plant richness of the towns. We found 1054 vascular plant taxa overall; alien and Red List plants comprised 33.9% and 7.3% of all taxa, respectively. The most species-rich habitat was the cemetery (mean number of taxa = 121), while the town centre hosted the lowest mean number of plant taxa (87). The habitat type that best predicted total species richness in the study towns was the floodplain (RMSE ≈ 20 species, RRMSE = 8.5%). In the case of aliens, the number of species in railways and town centres could be used for the rapid estimation of total alien richness in towns (RMSE ≈ 8 species, RRMSE = 10.8%). For Red List species, none of the habitats (including combinations of two habitats) could be recommended for a rapid estimation, as their prediction errors were exceptionally high (RRMSE = 45–62%).