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• 研究报告 • 上一篇    下一篇

松材线虫病死木皮下节肢动物生态位及跟随性评价

曹丹丹1,嵇保中1**,刘曙雯2,陈晓明1,张新慰1,杨锦锦1,刘佳佳1   

  1. (1南京林业大学森林资源与环境学院, 南京 210037; 2南京中山陵园管理局, 南京 210014)
  • 出版日期:2013-11-10 发布日期:2013-11-10

Niches and following performance evaluation of arthropod populations under the barks of dead pine trees caused by Bursaphelenchus xylophilus.

CAO Dan-dan1, JI Bao-zhong1**, LIU Shu-wen2, CHEN Xiao-ming1, ZHANG Xin-wei1, YANG Jin-jin1, LIU Jia-jia1   

  1. (1College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2The Administration Bureau of Dr Sun Yatsen’s Mausoleum, Nanjing 210014, China)
  • Online:2013-11-10 Published:2013-11-10

摘要: 用相对优势度、Levins生态位宽度、Pianka生态位重叠指数等指标对南京紫金山松材线虫病死木皮下节肢动物的种群结构及生态位进行调查。结果表明:松材线虫病死木皮下节肢动物种群隶属3纲7目17科27种。其中跳虫科、隐翅虫科、蝇科、小蠹科种类为优势种,螨科和天牛科种类为丰盛种,肿腿蜂科、穴甲科、茧蜂科、象甲科种类为常见种,蚁科、露尾甲科、蓟马科、阎甲科、蠼螋科、叩甲科、郭公虫科种类为偶见种。隐翅虫科种类生态位宽度最大,且与小蠹、天牛在时间、空间、时空生态位重叠指数及生态位相似性比例指数上均高于其他种类,说明隐翅虫与主要蛀干害虫在空间和时间上相遇的几率最大,跟随现象最为明显。本研究对开展载体昆虫携带病原微生物防治蛀干害虫具有较重要的理论意义和应用价值。

关键词: 木霉, 种子发芽, 抗氧化酶, 林木生长发育, 促生作用

Abstract:

By using the indices of relative dominance, Levins niche width and Pianka niche overlap, a field investigation was conducted to study the population composition and niches of arthropods under the barks of dead pine trees caused by Bursaphelenchus xylophilus in Zijin Mountain, Nanjing,  China. The populations of the arthropods under the barks of the dead pine trees belonged to 27 species, 17 families, 7 orders and 3 classes, among which, the dominant species were of Poduridae, Staphylinidae, Muscidae, and Scolytidae, the abundant species were of Cheyletidae and Cerambycidae, the common species were of Bethylidae, Bothrideridae, Braconidae and Curculionidae, and the rare species were of Formicidae, Nitidulidae, Thripidae, Histeridae, Labiduridae, Elateridae and Cleridae. The Staphylinidae species had the broadest niche width.
The values of temporal, spatial and temporalspatial niche overlapa and of niche similarity proportion between Staphylinidae and Scolytidae, Cerambycidae were higher than those between Staphylinidae and other species. This suggested that there existed the highest spatial and temporal encountering probabilities and the most obvious following performance between the Staphylinidae species and the main boring insects such as the species of Scolytidae and Cerambycidae. This study could have important theoretical and practical significance for developing the new methods for controlling the boring insects by using the entomopathogens carried by carrier insects.

Key words: Trichoderma, growth promoting, antioxidant enzyme., seedling growth and development, seed germination