Epiphyte colonisation of fog nets in montane forests of the Taita Hills, Kenya

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dc.contributor.author Stam, Åsa
dc.contributor.author He, Xiaolan
dc.contributor.author Kaasalainen, Ulla
dc.contributor.author Toivonen, Mikko Evert
dc.contributor.author Enroth, Johannes
dc.contributor.author Räsänen, Matti
dc.contributor.author Rikkinen, Jouko
dc.date.accessioned 2020-06-15T11:53:01Z
dc.date.available 2020-06-15T11:53:01Z
dc.date.issued 2020-10
dc.identifier.citation Stam , Å , He , X , Kaasalainen , U , Toivonen , M E , Enroth , J , Räsänen , M & Rikkinen , J 2020 , ' Epiphyte colonisation of fog nets in montane forests of the Taita Hills, Kenya ' , Annales Botanici Fennici , vol. 57 , no. 4-6 , pp. 227-238 . https://doi.org/10.5735/085.057.0406
dc.identifier.other PURE: 138296163
dc.identifier.other PURE UUID: 938c7c5f-2f6f-4ee3-a0be-d9755d369a6a
dc.identifier.other ORCID: /0000-0002-4615-6639/work/75943882
dc.identifier.other ORCID: /0000-0003-0994-5353/work/75945762
dc.identifier.other WOS: 000587377100006
dc.identifier.other ORCID: /0000-0001-9899-4768/work/106338663
dc.identifier.uri http://hdl.handle.net/10138/316163
dc.description.abstract The dispersal ecology of tropical non-vascular epiphytes has rarely been experimentally investigated. We studied epiphyte colonisation on 1 × 1 m polyethene nets placed for four years at seven sites at different elevations in montane forests in the Taita Hills, Kenya. During the first year the nets were also used to measure fog deposition. We predicted that differences in growth conditions would affect colonisation and subsequent growth of non-vascular epiphytes and result in clear differences in epiphyte cover and biomass, and community composition among sites. After four years the nets were taken down for determination of epiphyte cover and biomass. The diversity of established liverworts and macrolichens was also examined. Many liverwort and macrolichen species established diverse communities on the nets placed in the moist upper-montane zone. This was in contrast with the situation in the drier lower-montane zone where only green algae and crustose lichens were able to colonise most nets. Light intensity was an important determinant of epiphyte community composition, with liverworts dominating on nets under closed forest canopies and lichens dominating at more open sites. Atmospheric moisture was also important, with lichens benefiting from abundant fog deposition at open and windy sites. The dry weight of epiphytes (per unit area) on lichen-dominated nets was greater than on liverwort-dominated nets, while the highest cover was generally observed on liverwort-dominated nets. Our results demonstrate that polyethylene nets can be effectively used to study colonisation of non-vascular epiphytes as well as the abiotic and biotic factors controlling epiphyte colonisation and community composition in tropical forests. The liverworts Acanthocoleus chrysophyllus and Diplasiolejeunea kraussiana were new additions to the Kenyan bryophyte flora. en
dc.format.extent 12
dc.language.iso eng
dc.relation.ispartof Annales Botanici Fennici
dc.rights other
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 11831 Plant biology
dc.subject TROPICAL RAIN-FOREST
dc.subject CLIMATE-CHANGE
dc.subject DESICCATION TOLERANCE
dc.subject BRYOPHYTE COMMUNITIES
dc.subject ALTITUDINAL ZONATION
dc.subject CLOUD-FOREST
dc.subject LICHENS
dc.subject GROWTH
dc.subject DIVERSITY
dc.subject PATTERNS
dc.subject TROPICAL RAIN-FOREST
dc.subject CLIMATE-CHANGE
dc.subject DESICCATION TOLERANCE
dc.subject BRYOPHYTE COMMUNITIES
dc.subject ALTITUDINAL ZONATION
dc.subject CLOUD-FOREST
dc.subject LICHENS
dc.subject GROWTH
dc.subject DIVERSITY
dc.subject PATTERNS
dc.title Epiphyte colonisation of fog nets in montane forests of the Taita Hills, Kenya en
dc.type Article
dc.contributor.organization Organismal and Evolutionary Biology Research Programme
dc.contributor.organization Botany
dc.contributor.organization Embryophylo
dc.contributor.organization Department of Computer Science
dc.contributor.organization Biosciences
dc.contributor.organization Plant Biology
dc.contributor.organization INAR Physics
dc.contributor.organization Earth Change Observation Laboratory (ECHOLAB)
dc.contributor.organization Department of Geosciences and Geography
dc.contributor.organization Helsinki Institute of Sustainability Science (HELSUS)
dc.contributor.organization Viikki Plant Science Centre (ViPS)
dc.contributor.organization Lichens
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.5735/085.057.0406
dc.relation.issn 0003-3847
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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