Researchers from the University of Exeter simulated the effects of street lighting on artificial grassland ##s containing insects . They exposed them to two types of light spewed out by streetlamps . this artificial light stopped a wild relative of peas bats . grass is a key source of food for bats and their numbers declined . Other studies have shown that bats are less active around artificial lighting and that blackbirds reach sexual maturity faster .
Researchers from the University of Exeter simulated the effects of street lighting on artificial grassland plots containing insects . They exposed them to two types of light spewed out by streetlamps . Found amber light stopped a wild relative of peas flowering . Plant is a key source of food for aphids and their numbers declined . Other studies have shown that bats are less active around artificial lighting and that blackbirds reach sexual maturity faster .