期刊论文

Zeng, A.-P.

中文

应用生态学报

1001-9332

2014

25

12

3580-3586

10.13287/j.1001-9332.2014.0194

湖南省现代农业产业技术体系项目 湖南省科技厅项目（2010NK3011,2011FJ4298）资助

本校为第一机构

为了明确小果油茶果实大小对油茶象幼虫生长发育的限制作用,采用Logistic方程对油茶象老熟幼虫体质量与其寄主果实体积大小的关系进行了拟合.结果表明:油茶象幼虫体质量随果实体积增大而增长,符合Logistic模型;油茶象幼虫体质量增长符合边际效应递减原则,可分为快速增长阶段(< 3. 216 cm~3,每果1头;< 4. 747 cm~3,每果2头)和渐进增长阶段(> 3. 216 cm~3,每果1头;> 4. 747 cm~3,每果2头);油茶象寄生的最小果实阈值为1. 500 cm3(每果1头)或2. 539 cm3(每果2头).明确了落果中油茶象老熟幼虫逃逸的时间格局,果实收集后幼虫逃逸数量逐天递减,逃逸高峰期集中在6:00—10:00,占43. 9%,尤以7:00—8:00为甚...

The relationship between mature larval mass of oil tea weevil (Curculio chinensis) and fruit volume of its host plant oil tea (Camellia meiocarpa) was fitted with Logistic equation in order to understand the restriction of host fruit size on large larval growth and development of the weevil. The results showed that the larval mass increased with the increasing host fruit volume, which was in good conformity with the Logistic model. The weevil larval growth followed the principle of diminishing marginal utility, and it could be divided into two ...