Anderson Gail S
School of Criminology, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada.
J Forensic Sci. 2011 Jan;56(1):136-42. doi: 10.1111/j.1556-4029.2010.01539.x. Epub 2010 Sep 14.
Decomposition and insect colonization of pig (Sus scrofa L.) carcasses were observed over a 42-day period inside and outside a house in a suburban region of Edmonton, Alberta. Three freshly killed pig carcasses were placed outdoors on grass and three carcasses were placed in separate rooms inside a house in a suburban residential area. The carcasses were examined and sampled regularly. Outside carcasses were colonized rapidly by Calliphora vicina (R-D), Lucilia sericata (Meigen), Lucilia illustris (Meigen), Eucalliphora latifrons (Hough), Cynomya cadaverina (R-D), Phormia regina (Meigen), and Protophormia terraenovae (R-D). There was a delay of 5 days before inside carcasses were first colonized but all species except E. latifrons and L. illustris readily colonized at this time. Many more insects colonized the outside carcasses, and these were rapidly skeletonized. Inside, much fewer insects were present and decomposition was slowed and colonization extended. Dispersal patterns of postfeeding larvae inside the house on hard substrate were greatly expanded compared with those from carcasses on grass.
在艾伯塔省埃德蒙顿市郊区的一所房屋内外，对猪（Sus scrofa L.）尸体的分解和昆虫定殖情况进行了为期42天的观察。将三头刚宰杀的猪尸体放置在户外草地上，另外三头尸体放置在郊区居民区一所房屋的不同房间内。定期对尸体进行检查和采样。户外的尸体很快被红头丽蝇（Calliphora vicina (R-D)）、丝光绿蝇（Lucilia sericata (Meigen)）、亮绿蝇（Lucilia illustris (Meigen)）、宽额丽蝇（Eucalliphora latifrons (Hough)）、尸蓝蝇（Cynomya cadaverina (R-D)）、伏蝇（Phormia regina (Meigen)）和新陆原伏蝇（Protophormia terraenovae (R-D)）定殖。室内尸体首次被定殖前有5天的延迟，但此时除宽额丽蝇和亮绿蝇外的所有物种都很容易定殖。有更多昆虫定殖在户外尸体上，这些尸体很快就被啃成骨架。在室内，昆虫数量少得多，分解速度减慢，定殖时间延长。与草地上的尸体相比，室内硬基质上取食后幼虫的扩散模式大大扩展。
