Mycobiont -photobiont -bacteria interactions in saxicolous crustose lichens as sensitive bio indicatorsin context ofclimate change

Project § 27, Land Salzburg/ Austria, 2016
Ulrike Ruprecht, Ann-Marie Zein, Robert R.Junker
Climate change has severe negative impacts on species and their interactions. In order to understand the causes and consequences of environmental changes it is obligatory to investigate current patterns of biodiversity in heavily threatened areas such as the Alps. Mean annual temperature negatively correlates with altitude, which allows employing the altitudinal gradient as proxy for climate warming. Lichens are symbiotic organism, containing a mycobiont (fungus) and a photobiont (algae/ cyanobacterium) andexist in varying degrees of specialization to each other. Additionally, lichens are habitats for bacterial communities and result in very specific structured life communities, which are related to the climatic conditions in the different altitudinal areas. For understanding the effects of climate changein relation to the mycobiont-photobiont-bacteria interactionsa biodiversity study along an elevation gradient of about 1900 m in high alpine areas(along the GroßglocknerHigh Alpine Road, Salzburg, Austria) will be carried out with saxicolouscrustose lichensas model system.

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