Light pollution can have several negative effects on nocturnal garden ecosystems and pollinators. Some of these effects include disrupting the natural behaviors of nocturnal animals, such as foraging and mating patterns. The excess artificial light can also attract insects away from their natural habitats, affecting the pollination of plants in the garden. Additionally, light pollution can interfere with the navigation of nocturnal animals, leading to disorientation and potential harm. To mitigate these effects, using shields or directing lights downward can help reduce light pollution in garden ecosystems.