ABSTRACT Introduction. Agroforests are often surrogate habitats for threatened bryophytes and other organisms. This is important in urban settings where natural forests are often absent. Unfortunately, the benefits of urban agroforests for biodiversity are rarely studied. Methods. To better understand the bryophyte diversity of agroforests, we studied corticolous bryophytes (≤ 2 m) on 30 trees each in Citrus L. and Mangifera L. plantations in Nigeria. Key results. Nineteen species were recorded: 13 leafy liverworts and six mosses. Twelve species were recorded per plantation. Five species were shared between the two agroforests, indicating that a diversity of agroforests is ideal for preserving bryophyte diversity. Bryophyte abundance in the agroforests was similar, but the species were more evenly distributed and the diversity was higher in the mango agroforest. The frequent pruning of the crown (a standard horticultural practice) in the mango agroforest may relate to these differences. Calymperes palisotii was the most abundant species recorded in the study and was particularly abundant in the Citrus plantation. Generally, corticolous species were absent from the tree base, but occur at a higher mean height on mango (1.39 m) than on Citrus (1.11 m). This may be due to differences in species, or management practices. The height range for epiphytic bryophytes is slightly broader (0.48–1.80 m) in the Citrus plantation than in the mango plantation (1.17–1.60 m). However, the height of occurrence of bryophyte species in Citrus was generally lower, except for the moss Rhacopilopsis trinitensis, which has the maximum mean height on the trunk.

中文翻译：

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尼日利亚西南部伊巴丹城市农林的附生苔藓植物

摘要介绍。农林林通常是受威胁的苔藓植物和其他生物的替代栖息地。这在通常没有天然森林的城市环境中很重要。不幸的是，很少有人研究城市农林对生物多样性的益处。方法。为了更好地了解农林的苔藓植物多样性，我们研究了尼日利亚 Citrus L. 和 Mangifera L. 种植园各 30 棵树上的皮质苔藓植物（≤ 2 m）。关键结果。记录了 19 个物种：13 种多叶苔类植物和 6 种苔藓。每个种植园记录了 12 个物种。两个农林共有五个物种，这表明农林的多样性是保护苔藓植物多样性的理想选择。农林中苔藓植物的丰度相似，但芒果农林中的物种分布更均匀，多样性更高。在芒果农林中频繁修剪树冠（一种标准的园艺做法）可能与这些差异有关。Calymperes palisotii 是研究中记录的最丰富的物种，在柑橘种植园中尤为丰富。通常，树基中不存在皮质类植物，但芒果 (1.39 m) 的平均高度高于柑橘 (1.11 m)。这可能是由于物种或管理实践的差异。柑橘种植园的附生苔藓植物高度范围（0.48-1.80 m）比芒果种植园（1.17-1.60 m）稍宽。然而，柑橘类苔藓植物的出现高度普遍较低，但苔藓 Rhacopilopsis trinitensis 除外，