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No correlation between the diversity and productivity of assemblages: evidence from the phytophage and predator assemblages in various cotton agroecosystems

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Science China(Life Sciences) 2014年第9期57卷 936-943页

作者： GAO Feng men xingyuan GE Feng College of Agriculture and Biotechnology China Agricultural University State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Institute of Plant Protection Shandong Academy of Agricultural Sciences

Biodiversity research has shown that primary productivity increases with plant species number,especially in many experimental grassland ***,we assessed the correlation between productivity and diversity of phytophages and natural enemy assemblages associated with planting date and intercropping in four cotton ***-one pairs of data were used to determine Pearson correlations between species richness,total number of individuals,diversity indices and productivity for each assemblage every five days from 5 June to 15 September *** the same trophic level,the productivity exhibited a significant positive correlation with species richness of the phytophage or predator assemblage.A significant correlation was found between productivity and total number of individuals in most cotton ***,no significant correlations were observed between productivity and diversity indices(including indices of energy flow diversity and numerical diversity)in most cotton fields for either the phytophage or the predator *** richness of phytophage assemblage and total individual numbers were significantly correlated with primary ***,species richness of natural enemy assemblage and total number of individuals correlated with phytophage assemblage productivity.A negative but not significant correlation occurred between the indices of numerical diversity and energy flow diversity and lower trophic-level productivity in the cotton-phytophage and phytophage-predator assemblages for most intercropped cotton *** results clearly showed that there were no correlations between diversity indices and productivity within the same or lower trophic levels within the phytophage and predator assemblages in cotton agroecosystems,and inter-cropped cotton fields had a stronger ability to support the natural enemy assemblage and potentially to reduce phytophages.

关键词： correlation productivity diversity cotton agroecosystem insect assemblage

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Population dynamics of Dremomys pernyi and Callosciurus erythraeus in protective and non-protective pine forests at different ages

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Frontiers in Biology 2007年第2期2卷 242-246页

作者： men xingyuan GUO Xianguo DONG Wenge QIAN Tijun Medical College Shantou UniversityShantou 515031China Dali Medical College Dali UniversityDali 671000China

Four pine forests(6-10,11-15,16-20,and 31-40 year-old)located in the Cangshan Mountain and Erhai Lake National Reserve and 7 pine forests(1-5,6-10,11-15,1620,21-30,31-40,and more than 50 year-old)located in the non-protective area near the national reserve were *** replications of each forest was set and a total of 33 sites were *** each site,we quantified 6 habitat variables(species richness,abundance,and percentage of grasses and shrubs coverage respectively at the bottom layer of forests)within randomly determined 5 mx5 m *** hundred cages were set in five lines at each site to trap small mammals,whose species and numbers were ***-nance of Dremomys pernyi and Callosciurus erythraeus in small mammal communities,time niche breadth,and time niche overlap between the two small mammals were calcu-lated,***-wise regression was used to analyze the relationship between small mammals and habitat *** results indicated that *** occurred earlier than *** in protective pine *** was captured in 6-10 year-old forest initially,and *** was captured in 16-20 year-old forest *** and *** were captured in the 31-40 and 21-30 year-old forests initially in the non-protective area,*** of *** and *** in the 31-40 year-old protective forests were 3 and 3.75 times of those in the same-aged non-protective forests,*** significantly influenced the populations of the two small *** population of *** was positively correlated with the density of shrubs;the population of *** erythraeus was positively correlated with the coverage of shrubs,and negatively correlated with the coverage of *** pernyi and *** erythraeus were important for pine forests to scatter pine *** activities in the non-protective pine forests decreased the vegetation heterogeneity at the bottom layer of pi

关键词： Dremomys pernyi Callosciurus erythraeus population dynamics

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Landscape genetic analyses reveal host association of mitochondrial haplotypes in the Asian corn borer,Ostrinia furnacalis

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Insect Science 2021年第4期28卷 1169-1178页

作者： Zhaoke Dong Chao Li Qingqing Zhang Lili Li Zengbin Lu Fang Ouyang Yingying Song Yi Yu xingyuan men Institute of Plant Protection Shandong Academy of Agricultural ScienceJinanChina Key Laboratory of Integrated Crop Pest Management of Shandong Province College of Plant Health and MedicineQingdao Agricultural UniversityQingdaoChina Maize Research Institute Shandong Academy of Agricultural ScienceJinanChina State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina

Crop expansion often leads to high pest *** pests may have fitness trade-offs related to host use,and some host-associated genotypes may benefit and increase in ***,evidence concerning the effect of host availability on spatial distribution and frequency of mitochondrial haplotypes is *** studied genetic variation of the Asian corn borer,Ostrinia furnacalis(Guenée),across a large area during 2 years(2016 and 2017).Mitochondrial sequence data were obtained from 530 individuals collected from 79 locations in Shandong Province,*** total,155 haplotypes were found based on the combined cytochrome oxidase subunit 1(COI)and COII *** haplotypes(H2,H12,and H23)were dominant,whereas most of the other haplotypes occurred in low frequency.A haplotype network showed that the 155 haplotypes can be grouped into three *** clusters seemed to be randomly *** frequency of H12(in Cluster 1)was positively correlated with maize crop proportion,but negatively correlated with other crops(primarily vegetables,oilseed crops,and cotton)at all spatial scales(1-,3-,and 5-km radius).Cluster 2 had haplotype H23,and this cluster was negatively correlated with semi-natural *** 3 had no dominant haplotype and was not affected by landscape *** conclude that H12 may be a maize-associated *** study is needed to verify the possibility that the carriers of this haplotype may possess some fitness *** study highlights the importance of host availability in *** haplotype distribution and frequency.

关键词： agricultural landscape corn pest haplotype network host-associated haplotype mitochondrial sequence

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Cold storage alters the fat-trehalose trade-off,decreases the flight ability,and maintains the high survival rate and flight speed of Osmia excavata(Hymenoptera:Megachilidae)

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Insect Science 2024年第3期31卷 927-936页

作者： Yingying Song Li Liu Fang Ouyang Hongying Cui Wenxiu Guo Suhong Lv Baohua Ye Lili Li Yi Yu xingyuan men Institute of Plant Protection Shandong Academy of Agricultural SciencesJinanChina College of Plant Protection Shandong Agricultural UniversityJinanChina State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBejingChina

Osmia solitary bees are important pollinators of various crops *** has been widely used to synchronize the emergence time of Osmia species from cocoons with the blooming time of different crops,but the fitness of Osmia after refrigeration remains ***,the effects of long-term refrigeration at 0℃on the vitality,flight ability,and metabolism of Osmia excavata,which is known as the"king of pollination"in China,were *** survival rate(>90%before 120 d),weight loss rate(<15%after 170 d),and mean flight speed of *** were not greatly affected after long-term *** content of fats,which have antifreeze and energy storage properties,was not significantly altered in *** before 130 d of refrigeration,which might explain why the survival rates and flight speed of *** remained high after long-term ***,the flight duration and distance decreased significantly(P<0.05),and both were positively correlated with the reduced trehalose levels in ***(r=[+0.69]-[+0.71];P<0.05).Overall,these findings indicate that the pollination potential of *** for various crops with different flowering periods is high after long-term refrigeration;however,long-term refrigeration may decrease pollination *** findings highlight new research directions that could improve the ecological service function of refrigerated ***.

关键词： ecological service value flight ability Osmia pollination efficiency refrigeration vitality

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Cascade effects of crop species richness on the diversity of pest insects and their natural enemies

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Science China(Life Sciences) 2014年第7期57卷 718-725页

作者： SHI PeiJian HUI Cang men xingyuan ZHAO ZiHua OUYANG Fang GE Feng JIN XianShi CAO HaiFeng LI B.Larry State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture Institute of ZoologyChinese Academy of Sciences Key Laboratory of Sustainable Development of Marine Fisheries Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery Sciences Centre for Invasion Biology Department of Botany and ZoologyStellenbosch University Institute of Plant Protection Shandong Academy of Agricultural Sciences Ecological Complexity and Modeling Laboratory University of California

Understanding how plant species richness influences the diversity of herbivorous and predatory/parasitic arthropods is central to community *** explore the effects of crop species richness on the diversity of pest insects and their natural *** data from a four-year experiment with five levels of crop species richness,we found that crop species richness significantly affected the pest species richness,but there were no significant effects on richness of the pests’natural *** contrast,the species richness of pest insects significantly affected their natural *** findings suggest a cascade effect where trophic interactions are strong between adjacent trophic levels,while the interactions between connected but nonadjacent trophic levels are weakened by the intermediate trophic *** crop species richness resulted in a more stable arthropod community compared with communities in monoculture *** results highlight the complicated cross-trophic interactions and the crucial role of crop diversity in the food webs of agro-ecosystems.

关键词： trophic level stability generalized additive model monoculture polyculture

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Influence of Human Disturbance to the Small Mammal Communities in the Forests

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Open Journal of Forestry 2015年第1期5卷 1-9页

作者： xingyuan men Xianguo Guo Wenge Dong Nan Ding Tijun Qian Department of Plant Protection Shandong Academy of Agricultural Sciences Jinan China Laboratory of Vector & Pathogen Dali College Dali China

Small mammals have been proposed playing an important role in the energy flow and regeneration of forest ecosystems. We compared species richness, diversity (H’) of small mammal communities and abundance of six dominant species of small mammals in disturbed and protected forests (four age classes: 6 - 10, 11 - 15, 16 - 20 and 31 - 40 years old) in China. We also investigated the structural variables (such as species richness, cover rate and abundance of shrubs and grasses) in the bottom layer, which considered to be important for small mammals and might be altered by human disturbance. The relationships between small mammals and these structural variables were examined to determine the potential effects of human disturbance on the small mammals in the restored forests. Our results indicated that the structure and composition of the vegetation in the bottom layer were simplified by human disturbance, while the abundance and cover rate of grasses were significantly increased. Although no significant differences were observed in species richness of small mammals between the protected and disturbed forests at the same age, the diversity index of small mammals in the protected forests was always significantly higher than in the disturbed forests. Regression showed that the species richness and diversity of small mammals increased with the species richness of shrubs, and was negatively correlated to the cover rate of grasses in the bottom layer. Human disturbance increased the total abundance of small mammals, and the increased cover rate of grasses in the bottom layer was beneficial to the abundance of small mammals. Obvious succession of small mammal communities occurred as the protected forest aged. In the protected forests, small ground-dwelling mammals (A. chevrieri, E. miletus and M. pahari) were the dominant species in the younger forests. Other mammals (T. belangeri, D. pernyi and C. erythraeus) gradually became the dominant species as the protected forests aged.

关键词： Forest Restoration Human Disturbance Small Mammals Structural Variables

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Ectoparasite communities on Tupaia belangeri (Scandentia:Tupaiidae) in surrounding areas of Erhai Lake in Yunnan,China

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Journal of Medical Colleges of PLA(China) 2009年第4期24卷 215-222页

作者： Dong Wenge Guo Xianguo men xingyuan Qian Tijun Wu Dian Institute of Pathogens and Vectors Dali University Dali 671000 China Institute of Plant Protection Shandong Academy of Agricultural Science Jinan 250100 China

Objective:To investigate the ectoparasite communities on Tupaia belangeri (T. belangeri) in the surrounding areas of Erhai Lake and their potential importance in medical and veterinary science. Methods: Different locations in surrounding areas of Erhai Lake in Yunnan were selected as the investigation spots. T. belangeri were randomly captured with baited mouse cages and then brought to the laboratory for identification according to their body shape, size and color, and measurements such as the lengths of their body, ear and hind feet. Ectoparasites on them were collected and identified to determine the species under microscope after specimens were mounted on slides, with the clearing and drying process completed. The constituent ratio (C), prevalence (P) and average ectoparasite abundance (A) were used to test the prevalence and density of ectoparasites; Non-parametric Mann-Whitney U-tests were used to test the differences in the abundance and richness of ectoparasites between female and male hosts; Spearman correlation analysis was used to analyze the relationship between ectoparasites and the body parameters of hosts. Results: There was very high species diversity of ectoparasites found on T. belangeri and some species of ectoparasites were reported associated with human diseases. A high proportion (88%) of 107 T. belangeri was found to be infested with ectoparasites. A total of 75 species of ectoparasites on them were collected, including 58 species of chigger mite, 12 species of gamasid mite, 4 species of flea and 1 species of sucking louse. Within this ectoparasite complex, 13 species were previously reported to be vectors of human disease agents. Non-parametric Mann-Whitney U-tests showed significant differences between male and female T. belangeri in terms of the abundance and richness of total ectoparasites. However, the species richness and abundance of chigger mites, sucking lice, fleas or gamasid mites presented no significant differences between male an

关键词： Tupaia belanger Ectoparasites Vector-borne disease Erhai Lake Yunnan

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Evaluation on Application and Spraying Effect of Air-Assisted Sprayer in Apple Orchard with Dwarfing Rootstocks

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Agricultural Biotechnology 2019年第6期8卷 133-137页

作者： Xiaoman JIA Yunqiang HAN Yong ZHANG xingyuan men Lili LI Hao ZHAI Shandong Institute of Pomology Taian 271000China Bayer Cropscience Beijing 100020China Institute of Plant Protection Shandong Academy of Agricultural SciencesJinan 250100China

The application and spraying effect of 3 WG-1200 A air-assisted sprayer in dwarfing rootstock apple orchard were evaluated by investigating the droplet density, coverage and volume median diameter(VMD) in different canopy layers(2.0, 1.5, 1.0 m) and five directions(east, south, west, north and middle) of apple trees. The results showed that the droplet density was 166.99 per square centimeter, the coverage was 48.23%, and the VMD was 138.63 μm. The droplet density in different canopy layers of the trees had consistent trend with the coverage. The droplet density and coverage in the upper and middle canopy(2.0 m and 1.5 m) had no significant difference, but they were both higher than those in the lower canopy, while the VMD in different canopy layers showed an opposite trend. The change trends of the coverage and VMD in the five directions were consistent, and the values in the middle and east were the highest, followed by the north, south and west, respectively. The results indicated that droplet characteristics of the 3 WG-1200 A air-assisted sprayer met the basic requirements for pest and pathogen control. This study provides a theoretical basis and data support for the application and improvement of orchard application equipments in dwarfing rootstock apple orchard.

关键词： Apple orchard Air-assisted sprayer Droplet density Droplet coverage Droplet volume median diameter

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寄主植物调控棉铃虫种群对气候变暖的不对称响应

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植物保护学报 2021年第5期48卷 1062-1068页

作者：崔洪莹门兴元赵紫华山东省农业科学院植物保护研究所济南250100 中国农业大学植物保护学院植物生物安全系北京100193

为明确全球气候变暖对不同寄主植物上棉铃虫Helicoverpa armigera种群发生的影响,通过收集2008—2019年全国范围、华北地区、华东地区、西北地区及华中地区7种寄主植物(小麦、玉米、大豆、棉花、花生、蔬菜和其他粮食作物)上棉铃虫成灾... 详细信息

为明确全球气候变暖对不同寄主植物上棉铃虫Helicoverpa armigera种群发生的影响,通过收集2008—2019年全国范围、华北地区、华东地区、西北地区及华中地区7种寄主植物(小麦、玉米、大豆、棉花、花生、蔬菜和其他粮食作物)上棉铃虫成灾面积及各地区平均温度数据,采用单因素方差分析法及广义线性模型分析不同寄主植物上棉铃虫种群的发生程度。结果显示,玉米、大豆、花生和蔬菜寄主植物上棉铃虫成灾面积显著增加,棉花上棉铃虫成灾面积显著降低。玉米(全国范围、华北地区)、花生(全国范围、华中地区)及蔬菜(华东地区)上棉铃虫成灾面积随着温度距平的升高而显著增加;但棉花上棉铃虫成灾面积随着温度距平的升高而显著降低。如全国范围内,在玉米和花生上,2014—2019年棉铃虫成灾面积均显著高于2008—2013年,其增加比率分别为24.0%和34.3%;在棉花上,2014—2019年棉铃虫成灾面积显著低于2008—2013年,其降低比率为62.0%。表明全球气候变暖显著增加了玉米、花生及蔬菜上棉铃虫成灾面积,而棉花上棉铃虫成灾面积的降低主要受转Bt基因棉花种植的影响。

关键词：气候变暖棉铃虫成灾面积寄主植物

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Effects of Several Factors on Trapping Quantity of Grapholitha molesta Busck by Sex Pheromone

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Plant Diseases and Pests 2012年第5期3卷 8-10页

作者： Lili LI Sicong ZHANG Xueliang LIANG Ansheng ZHANG xingyuan men Xianhong ZHOU Qianying ZHUANG Yi YU Institute of Plant Protection Shandong Academy of Agricultural Sciences/Shandong Key Laboratory for Plant Virology Weifang En- try-Exit Inspection and Quarantine Bureau

The key application technology for sex pheromone of Grapholitha molesta was studied from the aspects of different hanging heights and orientations, dif- ferent doses and types of traps through the tests on trapping quantity of G. molesta in fields. The results showed that the trapping effect was enhanced when the hanging height was increased, and the trapping effect was the best in west direction. The trapping effect was enhanced when the dosage was increased. When it was up to 6 lures, the trapping effect was the best with 38.75 head/trap; the next was 2 lures with 31.00 head/trap. All types of traps had trapping ability to G. mo- lesta, among which triangle trapper was the best, followed by self-made bottle trap. Their trapping effects were 138.75 and 100.25 head/trap, respectively.

关键词： Grapholith mo/eJta Sex pheromone Hanging height Trap Trapping effect

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