Artificial illumination near rivers may alter bat-insect trophic interactions.

摘要: Abstract Artificial illumination at night represents an increasingly concerning threat to ecosystems worldwide, altering persistence, behaviour, physiology and fitness of many organisms their mutual interactions, in the long-term affecting ecosystem functioning. Bats are very sensitive artificial light because they obligate nocturnal feed on insects which often also responsive lights. Here we tested effects LED lighting prey-predator interactions riverine ecosystems, using bats insect prey as models, compared bat reactions terms activity abundance diversity, respectively, artificially lit vs. unlit nights. influenced both assemblages taxon-specific directions: abundances increased sites, particularly due increase small dipterans near source. Composition differed significantly between sites. Total declined but this change was mainly response most abundant species, Myotis daubentonii, while opportunistic species showed no reaction or even opposite pattern (Pipistrellus kuhlii). We show that along rivers may affect trophic insects, resulting a profound alteration community structure dynamics.