TY  -  
T1  - Dangerous relationships : Biases in freshwater bioassessment based on observed to expected ratios 
SN  -  / 1051-0761 
UR  - http://hdl.handle.net/10138/300504 
T3  - Ecological Applications 28 (5): 1260-1272 
A1  - Hämäläinen, Heikki; Aroviita, Jukka; Jyväsjärvi, Jussi; Kärkkäinen, Salme 
A2  -  
PB  - Ecological Society of America 
Y1  - 2018 
LA  - en 
AB  - The ecological assessment of freshwaters is currently primarily based on biological communities and the reference condition approach (RCA). In the RCA, the communities in streams and lakes disturbed by humans are compared with communities in reference conditions with no or minimal anthropogenic influence. The currently favored rationale is using selected community metrics for which the expected values (E) for each site are typically estimated from environmental variables using a predictive model... 
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KW  - bioassessment; classification error; ecological status; freshwaters; predictive models; reference condition approach; mathematical models; modelling (creation related to information); case study; simulation; lakes; decision making; ecological status; ecology; reference values; matemaattiset mallit; mallintaminen; tapaustutkimus; simulointi; järvet; päätöksenteko; ekologinen tila; ekologia; viitearvot 
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