Changes in nocturnal insect communities in forest-dominated landscape relevant to artificial light intensity

Journal of Ecology and Environment

Lee Seung-Gyu¹  Jung Sang-Woo²  Kim Yoon-Ho²  Cho Yong-Chan³  Lee Hakbong⁴ 

[1] Animal Resources Division, National Institute of Biological Resources, 22689, Incheon, South Korea;DASARI Research Institute of BioResources, 34127, Daejeon, South Korea;Restoration Center for Endangered Species, National Institute of Ecology, 36531, Yeongyang, South Korea;Restoration Center for Endangered Species, National Institute of Ecology, 36531, Yeongyang, South Korea;Conservation Center for Gwangneung Forest, Korea National Arboretum, 509, Gwangneungsumogwon-ro, Soheul-eup, 11186, Pocheon, South Korea;

关键词: Artificial light at night;    Biosphere reserve;    Insect diversity;    Protected area;    Urbanization;   

DOI  :  10.1186/s41610-021-00207-9

来源: Springer

【 摘 要 】

BackgroundArtificial light at night has recently been identified as a major factor adversely affecting global insect diversity. Here, we compared the insect diversity in Gwangneung Forest Biosphere Reserve, specifically in the Korea National Arboretum (with no artificial light at night), with that of three nearby urban sites with a gradient of artificial light at night (five locations at each site). We analyzed the effects of the artificial night lighting index, mean annual temperature, and field light intensity (lux) at night on the insect community structure.ResultsThe urban sites generally exhibited higher species richness and abundance as well as clear indicator species compared with the control site. The size distribution of the collected insects markedly differed between the control and the three urban sites. The abundance of herbivorous and omnivorous insects increased and decreased, respectively, with the increase in light intensity. Species richness of herbivorous and omnivorous insects was likely correlated with the field light intensity at night and artificial night lighting index, respectively.ConclusionsThis study demonstrates the association between nighttime environment and marked changes in insect community structure and revealed consequent transition of ecosystem services by changes in trophic group composition.

【 授权许可】

CC BY