Logo: to the web site of Uppsala University

uu.sePublications from Uppsala University
Change search
ExportLink to record
Permanent link

Direct link
BETA

Project

Project type/Form of grant
Project grant
Title [sv]
Lokala och regionala krafters betydelse för mikroorganismers diversitet och funktion i ekosystem
Title [en]
The importance of local and regional forces for microbial diversity and ecosystem function
Abstract [sv]
The possible role of diversity for ecosystem function is very much debated. The aim of this project is to investigate when, rather than if, diversity matters for function. The main hypothesis is that the function of a community, as well as the coupling between diversity and function, depend on how the community is assembled. It is hypothesized that a community functions most efficiently at medium dispersal rates when communities are formed by local contemporary environmental conditions, i.e. under the species sorting scenario in metacommunity theory. In contrast, at low dispersal rates or very high dispersal rates, respectively, a less functional community is expected, and function is also expected to depend to a greater extent on the presence of individual taxa. These hypotheses will be tested in experimental and field studies, where lake bacterial communities will be used as models. Bacteria provide the advantage of being small and having short generation times, so that experiments can be designed at small scales and over short time spans. Further, despite the enormous diversity and ecological significance of bacterial communities, bacterial diversity and its importance, is severely understudied. The model function to be investigated primarily is the growth rate per carbon substrate unit, a process of substantial importance for aquatic ecosystems. The diversity of bacteria will be assed using molecular genetics tools.
Principal InvestigatorLindström, Eva
Coordinating organisation
Uppsala University
Funder
Period
2010-01-01 - 2012-12-31
Identifiers
DiVA, id: project:3642Project, id: 2009-05172_VR

Search in DiVA

Search outside of DiVA

GoogleGoogle Scholar