The divergent effects of moderate climate warming on the gut microbiota and energetic state of cold-climate lizards from open and semi-closed microhabitats

作者：Wanli Liu, Jing Yang, Meng Yu, Dan-Yang Wu, Luoxin Cui, Teng Li, Baojun Sun, Peng Liu · 发表于：Frontiers in Microbiology · 年份：2022 · DOI：10.3389/fmicb.2022.1050750 · 被引用次数：10 · 研究领域：Gut microbiota and health、Species Distribution and Climate Change

Introduction Understanding the physiological responses to warming temperatures is critical for evaluating the vulnerabilities of animals to climate warming. The physiological responses are increasingly affected by gut microbiota. However, the interactions between physiological responses and the gut microbiota of sympatric animals from various microhabitats in the face of climate change remain largely unknown. Methods To evaluate the effects of warming temperatures on animals from different microhabitats, we compared locomotor performance, metabolic rate, growth, survival, and gut microbiota of two sympatric ectothermic species ( Eremias argus and Takydromus amurensis ) from open and semi-closed microhabitats under present and moderate warming climate conditions, respectively. Results and discussion We found that locomotor performance and growth rates of snout-vent length (SVL) were enhanced in both lizard species by warming climate. Interestingly, warming temperatures enhanced resting metabolic rates (RMR) in the open-habitat lizard, E. argus , but depressed them in the semi-closed habitat lizard, T. amurensis . Reversely, the metabolism-related gut microbiota was not affected by warming in E. argus , whereas it was significantly enhanced by warming in T. amurensis , indicating a plausible compensatory effect of the gut microbiota on the metabolic regulation of T. amurensis . Furthermore, warming likely improved immunity in both lizard species by significantly reducing pathog...