论文部分内容阅读
在调查北京地区嗜尸性昆虫物种谱系的基础上，进一步研究了在尸体分解过程中，昆虫种类的演替特点及其对死亡时间推断的价值。嗜尸性昆虫侵食尸体的过程可分为侵入期、分解期和残余期：侵入期以双翅目蝇类为主，时间推断以幼蛆的发育程度为依据；分解期出现大量鞘翅目种类，时间推断以甲虫的各类组成、数量以及演替特征为主要依据；残余期昆虫数量极少。季节及温度、环境条件、尸体是否受伤或裸露，是影响昆虫侵食尸体时序的三个重要因素。正常的春季，侵入期为8至25天，分解期为约42天。
On the basis of investigating the pedigree of the carnivorous insect species in Beijing, the succession characteristics of insect species and its value in inferring the time of death were further studied in the process of cadaveric decomposition. The process of infestation of dead bodies by insectivorous insects can be divided into invasion phase, decomposition phase and residual phase. In the period of intrusion, the genus Diptera was the dominant species. The temporal inference was based on the development of young maggots. There were a large number of Coleoptera species in the decomposition phase, Time inference to the beetle of the various types of composition, the number and succession characteristics as the main basis; residual insect population is very small. The season and temperature, the environmental conditions, whether the body is injured or exposed are three important factors that affect the timing of the insect infestation. Normal spring, the invasion period of 8 to 25 days, the decomposition period of about 42 days.