TY - JOUR
T1 - European river typologies fail to capture diatom, fish, and macrophyte community composition
AU - Jupke, Jonathan F.
AU - Birk, Sebastian
AU - Apostolou, Apostolos
AU - Aroviita, Jukka
AU - Baattrup-Pedersen, Annette
AU - Baláži, Peter
AU - Barešová, Libuše
AU - Blanco, Saúl
AU - Borrego-Ramos, María
AU - van Dam, Herman
AU - Dimitriou, Elias
AU - Feld, Christian K.
AU - Ferreira, Maria Teresa
AU - Gecheva, Gana
AU - Gomà, Joan
AU - Hanžek, Nikola
AU - Haslev, Ida Marie
AU - Isheva, Tsvetelina
AU - Jamoneau, Aurélien
AU - Jyrkänkallio-Mikkola, Jenny
AU - Kahlert, Maria
AU - Karaouzas, Ioannis
AU - Karjalainen, Satu Maaria
AU - Olenici, Adriana
AU - Panek, Piotr
AU - Paril, Petr
AU - Peeters, Edwin T.H.M.
AU - Polášek, Marek
AU - Pont, Didier
AU - Pumputyte, Audrone
AU - Sandin, Leonard
AU - Sochuliaková, Lucia
AU - Soininen, Janne
AU - Stanković, Igor
AU - Straka, Michal
AU - Šušnjara, Mirela
AU - Sutela, Tapio
AU - Tison-Rosebery, Juliette
AU - Udovič, Marija Gligora
AU - Verhofstad, Michiel
AU - Žutinić, Petar
AU - Schäfer, Ralf B.
PY - 2023/10
Y1 - 2023/10
N2 - Typology systems are frequently used in applied and fundamental ecology and are relevant for environmental monitoring and conservation. They aggregate ecosystems into discrete types based on biotic and abiotic variables, assuming that ecosystems of the same type are more alike than ecosystems of different types with regard to a specific property of interest. We evaluated whether this assumption is met by the Broad River Types (BRT), a recently proposed European river typology system, that classifies river segments based on abiotic variables, when it is used to group biological communities. We compiled data on the community composition of diatoms, fishes, and aquatic macrophytes throughout Europe and evaluated whether the composition is more similar in site groups with the same river type than in site groups of different river types using analysis of similarities, classification strength, typical species analysis, and the area under zeta diversity decline curves. We compared the performance of the BRT with those of four region-based typology systems, namely, Illies Freshwater Ecoregions, the Biogeographic Regions, the Freshwater Ecoregions of the World, and the Environmental Zones, as well as spatial autocorrelation (SA) classifications. All typology systems received low scores from most evaluation methods, relative to predefined thresholds and the SA classifications. The BRT often scored lowest of all typology systems. Within each typology system, community composition overlapped considerably between site groups defined by the types of the systems. The overlap tended to be the lowest for fishes and between Illies Freshwater Ecoregions. In conclusion, we found that existing broad-scale river typology systems fail to delineate site groups with distinct and compositionally homogeneous communities of diatoms, fishes, and macrophytes. A way to improve the fit between typology systems and biological communities might be to combine segment-based and region-based typology systems to simultaneously account for local environmental variation and historical distribution patterns, thus potentially improving the utility of broad-scale typology systems for freshwater biota.
AB - Typology systems are frequently used in applied and fundamental ecology and are relevant for environmental monitoring and conservation. They aggregate ecosystems into discrete types based on biotic and abiotic variables, assuming that ecosystems of the same type are more alike than ecosystems of different types with regard to a specific property of interest. We evaluated whether this assumption is met by the Broad River Types (BRT), a recently proposed European river typology system, that classifies river segments based on abiotic variables, when it is used to group biological communities. We compiled data on the community composition of diatoms, fishes, and aquatic macrophytes throughout Europe and evaluated whether the composition is more similar in site groups with the same river type than in site groups of different river types using analysis of similarities, classification strength, typical species analysis, and the area under zeta diversity decline curves. We compared the performance of the BRT with those of four region-based typology systems, namely, Illies Freshwater Ecoregions, the Biogeographic Regions, the Freshwater Ecoregions of the World, and the Environmental Zones, as well as spatial autocorrelation (SA) classifications. All typology systems received low scores from most evaluation methods, relative to predefined thresholds and the SA classifications. The BRT often scored lowest of all typology systems. Within each typology system, community composition overlapped considerably between site groups defined by the types of the systems. The overlap tended to be the lowest for fishes and between Illies Freshwater Ecoregions. In conclusion, we found that existing broad-scale river typology systems fail to delineate site groups with distinct and compositionally homogeneous communities of diatoms, fishes, and macrophytes. A way to improve the fit between typology systems and biological communities might be to combine segment-based and region-based typology systems to simultaneously account for local environmental variation and historical distribution patterns, thus potentially improving the utility of broad-scale typology systems for freshwater biota.
KW - Biological quality elements
KW - Biomonitoring
KW - Ecoregions
KW - Freshwater ecosystems
KW - Typology evaluation
KW - Typology systems
UR - http://www.scopus.com/inward/record.url?scp=85164280162&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2023.165081
DO - 10.1016/j.scitotenv.2023.165081
M3 - Journal article
C2 - 37355122
AN - SCOPUS:85164280162
SN - 0048-9697
VL - 896
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 165081
ER -