LI Xueting,YANG Yichun,ZHANG Dazhi,et al.Damage Rate and Spatial Distribution Type of Etiella zinckenella on Ammopiptanthus mongolicus in Different Habitats[J].Northern Horticulture,2016,40(24):108-111.[doi:10.11937/bfyy.201624027]
不同生境中沙冬青豆荚螟的危害率及空间分布型
- Title:
- Damage Rate and Spatial Distribution Type of Etiella zinckenella on Ammopiptanthus mongolicus in Different Habitats
- 关键词:
- （宁夏大学 生命科学学院; 宁夏 银川 750021）
- Keywords:
- Ammopiptanthus mongolicus; Etiella zinckenella; seed pests; damage rate; spatial distribution pattern
- 文献标志码:
- A
- 摘要:
- 沙冬青；豆荚螟；种实害虫；危害率；空间分布型
- Abstract:
- Etiella zinckenella is one of main pests of Ammopiptanthus mongolicus.Taking the desert landscape in Ningxia Lingwu Baijitan Nature Reserves as the background，four plots of A.mongolicus lands with the habitat types of natural growing (Yangchangwan plot，YCW；Zaoquan plot，ZQ) and artificial planting (Tiangshuihe plot，TSH；Ma′anshan plot，MAS) were selected as study sites to investigate the damage rate and its spatial distribution type of E.zinckenella.The results showed that larva individual and damage rate of E.zinckenella in MAS was the highest (2.015 individuals per pod，82.83%)，followed by the TSH (1.423 3 individuals per pod，64.83%) and YCW (1.218 3 individuals per pod，59.83%).ZQ was the lowest (0.558 5 individuals per pod，32.00%).Artificial planting habitats were significantly higher than natural growing habitats.The individual number and damage rate of E.zinckenella was positively correlated with the density of A.mongolicus.Based on multiple stepwise regression analysis，damage rate were positively correlated with the length，breadth and number of seed of per pod.Based on frequency distribution indices，aggregation analysis indices and regression analysis showed that spatial distribution pattern of E.zinckenella larvae were belong to aggregating distribution regardless of in artificial planting habitats or natural growing.The Iwao model of larvae of E.zinckenella was M*=1.040 66+0.569 02M （R=0.925 1），indicated that basic composition of the E.zinckenella distribution was individual population.And the different individual had mutual affinity with each other.
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备注/Memo
第一作者简介：李雪婷（1992-），女，硕士研究生，研究方向为动物生态与动物资源。E-mail:lixuetingnxu@163.com.责任作者：张大治（1970-），男，博士，教授，现主要从事动物生态及动物资源等研究工作。E-mail：zdz313@nxu.edu.cn.基金项目：国家自然科学基金资助项目（31560611）；宁夏回族自治区大学生创新创业训练计划资助项目（20150142）。