Highlights•River impoundment results in fairly predictable changes in fish functional
diversity.•The most vulnerable species have functional traits associated with flowing water …

Dams are recognised to impact aquatic biodiversity, but the effects and conclusions diverge
across studies and locations. By using a meta‐analytical approach, we quantified the effects …

Do large organisms occupy higher trophic levels? Predators are often larger than their prey
in food chains, but empirical evidence for positive body mass–trophic level scaling for entire …

Applying the ecosystem services concept to conservation initiatives or in managing
ecosystem services requires understanding how environmental impacts affect the ecology of …

We reviewed concepts of patch dynamics and environmental heterogeneity and their
applications to the study of fluvial ecosystems, with emphasis on research published in J …

Knowledge of abiotic limnological factors is important to monitor changes caused by
humans, and to explain the structure and dynamics of populations and communities in a …

Size‐structured food webs form integrated trophic systems where energy is channeled from
small to large consumers. Empirical evidence suggests that size structure prevails in aquatic …

Non-native species introduced into reservoirs cause major changes in biodiversity, resulting
in spatial and temporal biotic homogenization and/or differentiation. We used a sampling …

Dams have disrupted natural river systems worldwide and although population and
community level effects on aquatic biota have been well documented, food web responses …

Food-chain length is an important character of ecological communities that affects many of
their functional aspects. Recently, an increasing number of studies have tested the effects of …