Insects within bushes assemble and forage closer to artificial light at night

Artificial light at night (ALAN) has been implicated in the global decline of insect populations. Causal mechanisms contributing to declines remain unclear, however. Here we examine causal factors which could link some declining terrestrial populations with ALAN. To do so, defined closest and furthest halves individual bushes according nearest source artificial light. We sampled leaves invertebrates from both sides determine herbivory abundance. First, observed that, within bushes, were significantly more likely display closer distances established streetlighting. This may be due phenomenon positive phototaxis insects (flight light). Further, abundant on side streetlighting midnight, but not midday, when lights are unilluminated. Consequently, argue that ALAN creates bottom-up trophic effects, driven by attraction behaviours even scale single plants.