SPATIAL SCALE AFFECTS COMMUNITY CONCORDANCE AMONG FISHES, BENTHIC MACROINVERTEBRATES, AND BRYOPHYTES IN STREAMS.

The article examined the effect of the spatial scale of a study on the strength of community concordance among fishes, benthic macroinvertebrates and bryophytes in hundreds of boreal stream sites. The researchers attribute their findings to different taxonomic groups responding to similar environmental factors and share a similar latitudinal gradient of community structure when viewed across large spatial scales. They also identified a gradient of concordance with sites contributing disproportionately to community concordance in large stream with high microhabitat variability.