夜间照明对高寒草甸植物-夜间传粉者互作的影响OA

To study the effects of artificial light on nocturnal pollinator insects and plant-pollinator interactions in high-altitude areas,a nocturnal lighting experiment(Lit and Unlit treatments)was established in the alpine meadow on the eastern edge of the Tibetan Plateau to investigate the abundance and diversity of nocturnal pollinators communities,construct a plant-pollinator interaction network,and explore the effects of nocturnal lighting on nocturnal pollinator communities and pollinator networks.The results showed that nocturnal lighting does not affect the species diversity of nocturnal pollinator communities,but significantly reduces the abundance of nocturnal pollinator insects visiting plants.According to different pollinator groups,the abundance of Lepidoptera insects,Coleoptera and other orders insects at night is significantly reduced under illumination treatment,and the richness of Lepidoptera insects is also significantly reduced.By constructing the nocturnal plant-pollinator interaction network,it is found that the interaction diversity and nestedness of the nocturnal pollinator network are significantly decreased under lighting treatment,which is related to the decrease of pollinator abundance after lighting.These findings indicated that artificial light at night disrupts plant-pollinator interactions,carrying significant ecological implications for biodiversity conservation in alpine regions.