Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest

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, inclu...

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Autores principales: Frisch, A., Rudolphi, J., Sheil, D., Caruso, A., Thor, G., Gustafsson, L.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Wiley 2015
Materias:
Acceso en línea:https://hdl.handle.net/10568/95482
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author Frisch, A.
Rudolphi, J.
Sheil, D.
Caruso, A.
Thor, G.
Gustafsson, L.
author_browse Caruso, A.
Frisch, A.
Gustafsson, L.
Rudolphi, J.
Sheil, D.
Thor, G.
author_facet Frisch, A.
Rudolphi, J.
Sheil, D.
Caruso, A.
Thor, G.
Gustafsson, L.
author_sort Frisch, A.
collection Repository of Agricultural Research Outputs (CGSpace)
description 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.
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spelling CGSpace954822025-06-17T08:24:00Z Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest Frisch, A. Rudolphi, J. Sheil, D. Caruso, A. Thor, G. Gustafsson, L. tropical rain forests botanical composition tree planting equations modelling trunks 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. 2015-09 2018-07-03T11:03:04Z 2018-07-03T11:03:04Z Journal Article https://hdl.handle.net/10568/95482 en Limited Access Wiley Frisch, A., Rudolphi, J., Sheil, D., Caruso, A., Thor, G., Gustafsson, L.. 2015. Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest Biotropica, 47 (5) : 542-549. https://doi.org/10.1111/btp.12237
spellingShingle tropical rain forests
botanical composition
tree planting
equations
modelling
trunks
Frisch, A.
Rudolphi, J.
Sheil, D.
Caruso, A.
Thor, G.
Gustafsson, L.
Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title_full Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title_fullStr Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title_full_unstemmed Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title_short Tree Species Composition Predicts Epiphytic Lichen Communities in an African Montane Rain Forest
title_sort tree species composition predicts epiphytic lichen communities in an african montane rain forest
topic tropical rain forests
botanical composition
tree planting
equations
modelling
trunks
url https://hdl.handle.net/10568/95482
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AT carusoa treespeciescompositionpredictsepiphyticlichencommunitiesinanafricanmontanerainforest
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