The functional and taxonomic richness of wastewater treatment plant microbial communities are associated with each other and with ambient nitrogen and carbon availability

David R. Johnson, Tae Kwon Lee, Joonhong Park, Kathrin Fenner, Damian E. Helbling

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The number of functional traits of a wastewater treatment plant (WWTP) microbial community (i.e. functional richness) is thought to be an important determinant of its overall functional performance, but the ecological factors that determine functional richness remain unclear. The number of taxa within a community (i.e. taxonomic richness) is one ecological factor that might be important. Communities that contain more taxa are more likely to have more functional traits, and a positive association is therefore expected between functional and taxonomic richness. Empirical tests for this positive association among WWTP communities, however, are lacking. We address this knowledge gap by measuring the functional and taxonomic richness of 10 independent WWTP communities. We demonstrate that functional and taxonomic richness are positively associated with each other. We further demonstrate that functional and taxonomic richness are negatively associated with the effluent NH4-N and BOD5 concentrations. This led us to hypothesize that correlated variation in functional and taxonomic richness is likely related to variation in ambient nitrogen and carbon availability. We finally demonstrate that this hypothesis is consistent with the functional and taxonomic attributes of the WWTP communities.

Original languageEnglish
Pages (from-to)4851-4860
Number of pages10
JournalEnvironmental Microbiology
Volume17
Issue number12
DOIs
Publication statusPublished - 2015 Dec 1

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Waste Water
wastewater treatment
microbial communities
microbial community
Nitrogen
Carbon
plant community
plant communities
carbon
nitrogen
effluents
effluent
wastewater treatment plant
testing
ecological factor

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

Cite this

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The functional and taxonomic richness of wastewater treatment plant microbial communities are associated with each other and with ambient nitrogen and carbon availability. / Johnson, David R.; Lee, Tae Kwon; Park, Joonhong; Fenner, Kathrin; Helbling, Damian E.

In: Environmental Microbiology, Vol. 17, No. 12, 01.12.2015, p. 4851-4860.

Research output: Contribution to journalArticle

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