PDF(Sci-hub)
Abstract：
Sarcosaprophagous flies (Diptera) rank among the most common insects associated with human-transformed environments all over the world. Synanthropic species of the families Calliphoridae, Muscidae, Sarcophagidae and Phoridae, in particular, have tremendous forensic importance due to their ability to colonize human cadavers and thus provide information on minimum post-mortem interval. Recently, cases of flies colonizing cadavers inside buildings of different heights drew attention to the vertical dispersal abilities of these flies, a subject that has received little attention. We investigated the vertical distribution of sarcosaprophagous flies in an urban environment, using uninhabited buildings as experimental models in Northeastern Brazil. To assess the vertical stratification of flies, one in every three floors of nine buildings was sampled using traps baited with bovine spleen, from the ground to the 27th floor. Calliphoridae was the most abundant family (52.9%), followed by Muscidae (41.2%), Sarcophagidae (3.2%) and Phoridae (2.7%). Most of the insects were collected at ground level (78.8%), with a decreasing abundance registered on the higher floors. Nevertheless, adults of the four families tested here were able to reach substrates as high as the 15th floor, which corresponds to approximately 48 m in height. Regarding calliphorids, seven species were identified, of which Chrysomya albiceps (30.4%) and C. megacephala (68.3%) were the most abundant. This is, to our knowledge, the first detailed, replicated study on vertical resource localization of sarcosaprophagous flies.
摘要：
鱼蝇（Diptera）是与人类转化环境相关的最常见昆虫之一。Calliphoridae科的视神经物种，Muscidae,沙棘科和鱼科，特别是,具有极大的法医学重要性，因为它们能够在人类尸体上定殖，从而提供有关最小验尸间隔的信息。最近,苍蝇在不同高度的建筑物内定居尸体的案例引起了人们对这些苍蝇的垂直扩散能力的关注，一个很少受到关注的话题。我们调查了城市环境中食肉蝇的垂直分布，在巴西东北部使用无人居住的建筑物作为实验模型。为了评估苍蝇的垂直分层，九栋建筑的每三层中就有一层是用牛脾诱饵的陷阱取样的，从地面到27楼。鱼科是最丰富的科（52.9％），其次是Muscidae（41.2％），鱼科（3.2%）和phoridae（2.7%）。大多数昆虫是在地面收集的(78.8%)，在较高楼层登记的丰度下降。然而，在这里接受测试的四个家庭的成年人能够到达15楼的基底，相当于大约48米的高度。关于书法，确定了七个物种，其中白头肌(30.4%)和大头肌(68.3%)最丰富。这是,根据我们的知识，第一个详细的，食性蝇垂直资源定位的重复研究。
