Gomes Leonardo, Godoy Wesley Augusto Conde, Von Zuben Claudio José
Departamento de Zoologia, Universidade Estadual Paulista (UNESP), Av. 24A, 1515 Bairro Bela Vista, 13506-900 Rio Claro, SP, Brazil.
Naturwissenschaften. 2006 May;93(5):207-15. doi: 10.1007/s00114-006-0082-5.
Immature and adult stages of blowflies are one of the primary invertebrate consumers of decomposing animal organic matter. When the food supply is consumed or when the larvae complete their development and migrate prior to the total removal of the larval substrate, they disperse to find adequate places for pupation, a process known as postfeeding larval dispersal. Several important ecological and physiological aspects of this process were studied since the work by Green (Ann Appl Biol 38:475, 1951) 50 years ago. An understanding of postfeeding larval dispersal can be useful for determining the postmortem interval (PMI) of human cadavers in legal medicine, particularly because this interval may be underestimated if older dispersing larvae or those that disperse longer, faster, and deeper are not taken into account. In this article, we review the process of postfeeding larval dispersal and its implications for legal medicine, in particular showing that aspects such as burial behavior and competition among species of blowflies can influence this process and consequently, the estimation of PMI.
丽蝇的幼虫期和成虫期是分解动物有机物质的主要无脊椎动物消费者之一。当食物供应被消耗殆尽，或者幼虫在完全吃光幼虫基质之前完成发育并迁移时，它们会分散开来寻找合适的化蛹场所，这一过程被称为摄食后幼虫扩散。自50年前格林的研究（《应用生物学年鉴》38:475，1951）以来，人们对这一过程的几个重要生态和生理方面进行了研究。了解摄食后幼虫扩散对于确定法医学中人类尸体的死后间隔时间（PMI）可能会有所帮助，特别是如果没有考虑到年龄较大、扩散距离更远、速度更快且深度更深的扩散幼虫，这个间隔时间可能会被低估。在本文中，我们回顾了摄食后幼虫扩散的过程及其对法医学的影响，特别指出诸如埋葬行为和丽蝇物种间的竞争等因素会影响这一过程，进而影响PMI的估计。
