Insect species diversity, functional diversity, and their mutual relationship in a pecan stand
-
摘要: 通过扫网法和踏查法,调查了浙江省建德市薄壳山核桃Carya illinoensis林地昆虫多样性情况,共采集昆虫589头,鉴定至11目160种。基于9个生物学性状、4个物种多样性指数和7个功能多样性指数,研究了建德薄壳山核桃林地昆虫物种多样性和功能多样性2个维度的生物多样性,探究了两者的相互关系。结果表明:①同翅目Homoptera,半翅目Hemiptera,鞘翅目Coleoptera,鳞翅目Lepidoptera为优势目,整个昆虫亚群落的物种多样性和功能多样性均为最大。②选取的功能指数能较好地反映各群落的功能多样性情况。③功能性状距离(FAD),功能性状平均距离(MFAD),功能树状图指数(FD)随物种丰富度的增加而增大,属于物种丰富度单调递增指数(MSR);功能性状距离与功能性状平均距离是同一类指数。④功能多样性对害虫防治有指导意义。表6参30Abstract: To determine relation of functional diversity with species richness, we investigated insect diversity of a pecan stand in Jiande, the sweep sampling and the route survey method were applied. Then, based on nine biological traits including ecological characters, four indexes of species diversity (Richness,Shannon,Simpson and Evenness) and six indexes of functional diversity (Functional richness, Functional attribute diversity,Modified FAD,Functional dendrogram,Convex hull hyper-volume,Functional specialization)were obtained. Also, two dimensions of insect diversity (species diversity and functional diversity) and the relationship between both dimensions were studied using the MSR index. 589 insect specimens collected in the survey, which were identified 160 species belonging to 11 orders. Results of the analysis by DPS 14.10,FDiversity and Excel 2003 revealed that: 1) advantage of orders were Homoptera, Coleoptera, and Lepidoptera; and the greatest species diversity and functional diversity were in an insect sub-community. 2) Also, the selected functional traits easily distinguished the functional diversity among the community. 3) FAD, MFAD, and FD indexes increased with increasing species diversity. belonging to MSR index (Monotonically increasing with Species Richness), in this case community will be more stable and the pests in the pecan stand will easily be suppressed in low density. Also, FAD and MFAD were similar. Thus, functional diversity in the pecan stand could be used as guidance for pest control.[Ch, 6 tab. 30 ref.]
-
Key words:
- insect ecology /
- pecan (Carya illinoensis) /
- species diversity /
- functional diversity
-
链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2015.01.017
计量
- 文章访问数: 2962
- HTML全文浏览量: 453
- PDF下载量: 715
- 被引次数: 0