Abiotic effects on the distributions of major insect species in agricultural fields

作者：Eo Jinu; Kim Myung Hyun; Na Young Eun^*; Oh Young Ju; Park Sangkyu

来源：Entomological Research, 2017, 47(3): 160-166.

DOI：10.1111/1748-5967.12207

• climate change
• ground-dwelling
• precipitation
• susceptible
• temperature

We compared how abiotic factors affect the regional distributions of four insect groups (Dermaptera, Formicidae, Orthoptera and Diptera). Insects were collected using a pitfall trap from 36 agricultural field sites, and 31933 individuals encompassing 139 species were observed. The distribution pattern of dominant species was not obviously different among the four groups. Species richness (H) of Orthoptera showed a negative and positive correlation with precipitation and sunlight duration, respectively. Longitudinal zonation was the main distribution pattern of many dominant species. Overall, canonical correspondence analysis showed that temperature and precipitation were closely associated with the distribution of Orthoptera, but not that of Formicidae, implying that Formicidae may be affected less by abiotic factors compared to other taxonomic groups. Some orthopteran species such as Dianemobius nigrofasciatus and Polionemobius mikado showed a negative correlation with temperature. We suggest that these species can be categorized as susceptible to climate change. Our results also implied that the association between climate variables and distribution of insects should be evaluated at a species level.

• 出版日期2017-5