Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo, Hokkaido, 060-0818, Japan.
Department of Animal Medicine, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt.
Sci Rep. 2021 Jan 12;11(1):741. doi: 10.1038/s41598-020-80537-1.
Human activities interfere with wild animals and lead to the loss of many animal populations. Therefore, efforts have been made to understand how wildlife can rebound from anthropogenic disturbances. An essential mechanism to adapt to environmental and social changes is the fluctuations in the host gut microbiome. Here we give a comprehensive description of anthropogenically induced microbiome alterations in Asian elephants (n = 30). We detected gut microbial changes due to overseas translocation, captivity and deworming. We found that microbes belonging to Planococcaceae had the highest contribution in the microbiome alterations after translocation, while Clostridiaceae, Spirochaetaceae and Bacteroidia were the most affected after captivity. However, deworming significantly changed the abundance of Flavobacteriaceae, Sphingobacteriaceae, Xanthomonadaceae, Weeksellaceae and Burkholderiaceae. These findings may provide fundamental ideas to help guide the preservation tactics and probiotic replacement therapies of a dysbiosed gut microbiome in Asian elephants. More generally, these results show the severity of anthropogenic activities at the level of gut microbiome, altering the adaptation processes to new environments and the subsequent capability to maintain normal physiological processes in animals.
人类活动干扰野生动物,导致许多动物种群丧失。因此,人们一直在努力了解野生动物如何从人为干扰中恢复。适应环境和社会变化的一个重要机制是宿主肠道微生物组的波动。在这里,我们全面描述了亚洲象(n = 30)人为诱导的微生物组改变。我们检测到了由于海外转移、圈养和驱虫引起的肠道微生物变化。我们发现,在转移后,属于 Planococcaceae 的微生物对微生物组的改变贡献最大,而在圈养后,Clostridiaceae、Spirochaetaceae 和 Bacteroidia 受影响最大。然而,驱虫显著改变了 Flavobacteriaceae、Sphingobacteriaceae、Xanthomonadaceae、Weeksellaceae 和 Burkholderiaceae 的丰度。这些发现可能为帮助指导亚洲象肠道微生物组功能失调的保护策略和益生菌替代疗法提供基本思路。更普遍地说,这些结果表明了人为活动在肠道微生物组水平上的严重性,改变了动物适应新环境的过程,以及随后维持正常生理过程的能力。