砂生槐灌丛不同海拔地表节肢动物多样性与砂生槐种子危害的关系.

[Objective] The study aimed to understand the relationship between the diversity of the surface arthropod groups and the damage of Soplwra rrworcrofiiana Shrubs at different altitudes. [Method] The trapping method was used to investigate the surface arthropods in the S. moorcroftiana Shrubs from June to September 2018, and the five- point sampling method was used to sample the pods in the S. moorcroftiana Shrubs. Relative abundance, group richness, surface arthropod fun ctional energy group, Shannon-Wiener diversity index, Pielou uniformity index, Simpson dominance and similarity index Cody index and Sorensen index were used for analysis. [Result] The experiment collected a total of 2899 individuals of surface arthropods in different heights of S. rrworcroftiana Shrubs, involving 5 families, 18 orders and 74 families. Among them, Araneida, Diptera and Coleoptera were the dominant groups. These three orders contained 16, 13 and 12 families, respectively, accounting for SS. 4 % of all constituent families, Thysanoptera, Archaeognatha, Scorpionidae and Lithobiomorpha were rare groups, which contained only 0. 69% of the total number of individuals. [Conclusion] Different altitudes had an impact on the surface arthropod Soren sen index and Cody index. The similarity of surface arthropods between altitude 3 and altitude 1 was low, and there were few common surface arthropod groups. There were similar parts of the surface arthropod groups. Among the three types of surface arthropod communities in the sandy algae shrubs at different altitudes, the herbivorous and predatory surface arthropod groups are the dominant groups, while the omnivorous surface arthropod groups were the disadvantaged groups. The surface arthropods at different altitudes have different degrees of damage to the seeds and pods in the S. moorcroftiana Shrubs at different altitudes. Within a certain altitude range, the lower the altitude, the smface arthropods in the S. moorcroftiana Shrubs affected the pods and had the more severe damage to seeds. [ABSTRACT FROM AUTHOR]