G2TT
来源类型Articles
规范类型论文
DOI10.1111/btp.12237
ISSN1744-7429
Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
Aini, F.K.; Hergoualc'h, K.; Smith, J.U.; Verchot, L.V.
发表日期2015
出处Biotropica 47(5): 542-549
出版年2015
语种英语
摘要

The ecology of many tropical rain forest organisms, not the least in Africa, remains poorly understood. Here, we present a detailed ecological study of epiphytic lichens in the equatorial montane rain forest of Bwindi National Park (331 km2), Uganda. We evaluated all major lichen growth forms, including selected groups of crustose lichens. In 14 transects at elevations of 1290 m to 2500 m, we sampled 276 trees belonging to 60 species. We recorded all lichen species on each tree trunk between ground level and 2 m above the ground, yielding 191 lichen species in 67 genera, with a mean of 4.7 species per tree. We used non-metric multi-dimensional scaling to separate epiphytic lichen assemblages according to tree species composition and elevation. Structural equation modeling indicated that elevation influenced tree species composition and that tree species composition largely determined lichen species composition. Thus, elevation acted indirectly on the lichen assemblages. Further studies examining factors such as bark properties and lichen colonization ecology may clarify what determines the association between tree species and lichen assemblages. The link between lichen assemblages and large-scale elevation patterns, as well as disturbance and regrowth histories, warrants further study. An analysis of lichen species composition on individual tree species that occur over large elevation ranges would distinguish the effect of tree species on lichen assemblages from the effect of elevation and thus climate. Our study highlights the limited extent of our knowledge of tropical epiphytic lichens.

主题tropical rain forests ; biodiversity ; tree planting ; equations ; Modelling
区域Uganda
URLhttps://www.cifor.org/library/5726/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/93102
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GB/T 7714
Aini, F.K.,Hergoualc'h, K.,Smith, J.U.,et al. Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest. 2015.
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