Symbionts and changing environment: Lichen diversity and photobiont associations in tropical mountain ecosystems

Show simple item record Kaasalainen, Ulla Susanna Hemp, Andreas Mollel, Neduvoto Rikkinen, Jouko Kalevi 2020-01-17T14:03:02Z 2020-01-17T14:03:02Z 2017
dc.identifier.citation Kaasalainen , U S , Hemp , A , Mollel , N & Rikkinen , J K 2017 , ' Symbionts and changing environment: Lichen diversity and photobiont associations in tropical mountain ecosystems ' , Afromont-Mt Kilimanjaro Mountain Research Conference , Moshi , Tanzania, United Republic of , 22/02/2017 - 26/02/2017 pp. 47-48 .
dc.identifier.citation conference
dc.identifier.other PURE: 98834138
dc.identifier.other PURE UUID: 9317e746-7e01-400b-b8f2-5f22b39745d0
dc.identifier.other ORCID: /0000-0002-4615-6639/work/41847293
dc.identifier.other ORCID: /0000-0001-9899-4768/work/106338647
dc.description.abstract Epiphytes comprise a significant component of biodiversity and biomass in tropical forests. They are ecologically important in intercepting and retaining moisture, providing habitat and food for invertebrates, and contributing fixed nitrogen into the ecosystem. Lichens are mutualistic symbioses between lichen-forming fungi (mycobionts) and algae and/or cyanobacteria (photobionts). Most lichen mycobionts are specific in their photobiont choice and the local availability of compatible photobionts may limit their ability to disperse into new habitats. The aims of this study are to 1) provide the first account of lichen symbiont diversity in tropical mountains, with focus on changes along topographic gradients, and 2) elucidate the effects of human induced environmental change to lichen symbiotic organisms, including the effects of expansion of agricultural and other disturbed ecosystems, and changing climate. The results will be a significant contribution to understanding tropical biodiversity since so far very few studies deploying modern molecular biological methods have included lichens from East Africa. Lichens, bryophytes, and free-living cyanobacteria and green algae, along the natural environmental gradient of the southern slope of Kilimanjaro including all main ecosystem types. The sampling is focused on study plots established by the KiLi project . The collected specimens will be studied microscopically, with chemical analyses, and molecular biology methods. So far we have sampled several plots within the natural savanna, maize fields, grassland, and Chagga homegardens (3–5 sampled plots each ecosystem type). The specimens have been studied microscopically. The preliminary results show, that clear differences exist in lichen biota between different plot types: lichen abundance seems to depend especially on presence/absence of woody plants, lichen species on the climate, and lichen diversity on substrate variability. In all studied plots lichens mainly occur epiphytically on shrubs and trees. en
dc.format.extent 2
dc.language.iso eng
dc.rights unspecified
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 1181 Ecology, evolutionary biology
dc.title Symbionts and changing environment: Lichen diversity and photobiont associations in tropical mountain ecosystems en
dc.type Abstract
dc.contributor.organization Finnish Museum of Natural History
dc.contributor.organization Biosciences
dc.contributor.organization Plant Biology
dc.contributor.organization Lichens
dc.contributor.organization Viikki Plant Science Centre (ViPS)
dc.contributor.organization Teachers' Academy
dc.description.reviewstatus Non peer reviewed
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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