A macrophyte bioassessment approach linking taxon-specific tolerance and abundance in north temperate lakes

Journal of Environmental Management
Alison MikulyukKelly I Wagner

Abstract

Bioassessment methods are critically needed to evaluate and monitor lake ecological condition. Aquatic macrophytes are good candidate indicators, but few lake bioassessment methods developed in North America use them. The few macrophyte bioassessment methods that do exist suffer from problems related to subjectivity and discernibility along disturbance gradients. We developed and tested a bioassessment approach for 462 north temperate lakes. The approach links macrophyte abundance to lake ecological condition via estimates of taxon-specific abundance-weighted tolerance to anthropogenic disturbance. Using variables related to eutrophication, urban development and agriculture, we calculated abundance-weighted tolerance ranges for 59 macrophyte taxa and clustered them according to their tolerance to anthropogenic disturbance. We also created a composite index of anthropogenic disturbance using 20 variables related to population density, land cover and water chemistry. We used a statistical approach to set ecological condition thresholds based on the observed abundance of sensitive, moderately tolerant and tolerant taxa in each lake. The resulting lake condition categories were usually stable across multiple survey events and large...Continue Reading

References

Sep 12, 2000·Environmental Management·S NicholsB Shaw
Aug 30, 2006·Ecological Applications : a Publication of the Ecological Society of America·John L StoddardRichard H Norris
Sep 20, 2008·Environmental Monitoring and Assessment·Kevin J Collier
Oct 1, 2010·Nature·C J VörösmartyP M Davies
Mar 8, 2011·Marine Pollution Bulletin·Roger Green, Peter M Chapman
Jul 28, 2013·Environmental Science & Technology·Walter K DoddsJoseph E Gerken
Jul 28, 2015·Global Change Biology·Belinda GallardoMontserrat Vilà
Dec 1, 2015·The Journal of Applied Ecology·Annette Baattrup-PedersenNikolai Friberg
Apr 1, 2002·Functional Plant Biology : FPB·Stephen C Maberly, Tom V Madsen

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