Evolutionary Biology and Population dynamics of herbivorous lady beetles in Indonesia

印度尼西亚食草瓢虫的进化生物学和种群动态

基本信息

批准号：
02041033
负责人：
KATAKURA Haruo
金额：
$ 7.04万
依托单位：
Hokkaido University (1991)Kanazawa University (1990)
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02041033/
关键词：
Indonesia Herbivorous ladybird beetles Sumatra Bogor Population dynamics Insect Ecology Evolutionary Biology Integrated pest control

项目摘要

We have performed various kinds of field studies and laboratory experiments on phytophagous ladybird beetles (Epilachninae) in West Java and West Sumatra, Indonesia, in 1990 and 1991. A total of seven Japanese and two Indonesian researchers have been participated in this joint study. The main outcomes are :(1) A total of 24 species of epilachnines belonging to 2 genera and 5 species groups were collected. They include at least seven new species.(2) Sympatric species with a similar body size often are closely similar, or virtually identical in external appearance, even though they are distantly related taxonomically.(3) It was revealed that morphology of female intrenal reproductive systems, mating durations, and modes of sperm transfer are highly valuable for the classification and phylogeny reconstruction of Asian Epilachninae.(4) Food plants were confirmed for 23 epilachnine species. Epilachnines of the same species group tended to occur on one or a few restricted plant families.(5) The population density of most species, except for those on crops or weeds, was revealed to be very low.(6) Two types of populations, one on solanaceous crops and the other on a leguminous weed, were discovered in Epilachna vigintioctopunctata. On the basis of a series of experiments and field observations, it was concluded that the two types are true host races within a single species, possibly in the course of genetic divergence in sympatry.(7) Survivorship-fertility schedules of three Epilachna species were examined under the laboratory condition, and basic population parameters were calculated.(8) Seasonal change of population density in two Epilachna species was investigated at the Bogor Botanic Gardens. A preliminary analysis of the data obtained during November 1990 through October 1991 clearly demonstrated the depression of population densities during the extraordinary severe drought in July to September, 1991.

我们在1990年和1991年在印度尼西亚西爪哇省和印度尼西亚西苏门答腊的植物瓢虫甲虫（Epilachninae）进行了各种现场研究和实验室实验。共有7名日本和两名印尼研究人员参加了这项联合研究。主要结果是：（1）共收集了24种属于2个属和5种种类的表情。 They include at least seven new species.(2) Sympatric species with a similar body size often are closely similar, or virtually identical in external appearance, even though they are distantly related taxonomically.(3) It was revealed that morphology of female intrenal reproductive systems, mating durations, and modes of sperm transfer are highly valuable for the classification and phylogeny reconstruction of Asian Epilachninae.(4) Food plants were confirmed for 23静态物种。同一物种组的癫痫症往往发生在一个或几个受限制的植物家族上。（5）大多数物种的种群密度，除了农作物或杂草上的种群密度很低。（6）两种类型的种群，一种在甲虫作物中，另一种是豆科杂草，在豆科杂草上被发现在epilachna vigintioctopopunctapunta中。在一系列实验和现场观察的基础上，得出结论，两种类型是单个物种内的真正宿主种族，可能是在同学中的遗传差异过程中。植物园。对1990年11月至1991年10月获得的数据的初步分析清楚地表明，在1991年7月至9月的严重干旱期间，人口密度的抑郁症。