1 resultado para Mali Konflikt 2012
em Chinese Academy of Sciences Institutional Repositories Grid Portal
Filtro por publicador
- JISC Information Environment Repository (7)
- Adam Mickiewicz University Repository (2)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
- Aquatic Commons (45)
- Archive of European Integration (1)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (16)
- Biblioteca Digital da Câmara dos Deputados (40)
- Biblioteca Digital de la Universidad Católica Argentina (10)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (11)
- Bibloteca do Senado Federal do Brasil (1)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (4)
- Boston College Law School, Boston College (BC), United States (1)
- Brock University, Canada (3)
- Cámara de Comercio de Bogotá, Colombia (344)
- Cambridge University Engineering Department Publications Database (16)
- CentAUR: Central Archive University of Reading - UK (2)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (1)
- CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (5)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (2)
- Digital Peer Publishing (19)
- Duke University (2)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
- Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
- Helda - Digital Repository of University of Helsinki (2)
- Indian Institute of Science - Bangalore - Índia (12)
- Infoteca EMBRAPA (9)
- Instituto Politécnico do Porto, Portugal (4)
- Ministerio de Cultura, Spain (2)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (11)
- Portal de Revistas Científicas Complutenses - Espanha (3)
- Publishing Network for Geoscientific & Environmental Data (3)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (85)
- Queensland University of Technology - ePrints Archive (82)
- Repositório Científico da Universidade de Évora - Portugal (1)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (9)
- REPOSITORIO DIGITAL IMARPE - INSTITUTO DEL MAR DEL PERÚ, Peru (3)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (11)
- Repositorio Institucional de la Universidad Nacional Agraria (19)
- RIBERDIS - Repositorio IBERoamericano sobre DIScapacidad - Centro Español de Documentación sobre Discapacidad (CEDD) (2)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (9)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- South Carolina State Documents Depository (4)
- Universidad Autónoma de Nuevo León, Mexico (3)
- Universidad del Rosario, Colombia (51)
- Universidade de Lisboa - Repositório Aberto (1)
- Universidade dos Açores - Portugal (1)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (6)
- Université de Lausanne, Switzerland (10)
- Université de Montréal, Canada (31)
- University of Southampton, United Kingdom (61)
- University of Washington (6)
- WestminsterResearch - UK (14)
- Worcester Research and Publications - Worcester Research and Publications - UK (4)
Resumo:
本文系统地比较了苹果绵蚜(Eriosoma lanigerum Hausmann)和日光蜂(Aphelinus muli Haldeman)的各项生物指标。研究了环境条件对苹果绵蚜--日光蜂系统的影响以及苹果绵蚜和日光蜂相互依存、相互制约的关系。制作了苹果绵蚜和日光蜂相互作用的计算机模拟模型,并利用该模型作了系统的灵敏度分析。主要结果如下:1. 苹果绵蚜的发育起点,有效积温和最适温度都低于日光蜂,使得日光蜂的生长发育全面落后于苹果绵蚜。昆明地区春、夏、秋三季温度偏低,春季和夏初湿度较小,有利于苹果绵蚜的发育繁殖。这是昆明地区苹果绵蚜大发生的环境基础。2. 在20 ℃和25 ℃恒温下,苹果绵蚜的内禀增长力均大于日光蜂。这是苹果绵蚜大发生的生物学基础。3. 用本文建立BOXCAR TRAIN模型模拟的苹果绵蚜和日光蜂的种群动态与调查结果比较吻合,为该模型可用于苹果绵蚜和日光蜂种群的预测。4. 通过BOXCAR TRAIN模型的灵敏度分析,得知温度对苹果绵蚜--日光蜂系统影响极大,而相对湿度的影响则较小。苹果绵蚜在不同年份为害程度不同,可能是由于年份间温度的微小变化所致。不同的蜂蚜比例对苹果绵蚜--日光蜂系统的影响较大。在模拟模型中,假设日光蜂不存在,到模拟后期,苹果绵蚜的数量将比有日光蜂存在多一倍。在模拟中,不断增加日光蜂成虫,可以将苹果绵蚜压低在一定水平。模拟中还发现,降低苹果绵蚜数量比增加日光蜂数量对整个系统的影响大。5. 苹果绵蚜--日光蜂系统不是一个稳定系统。