Effects of parasites and predators on nociception: decreases analgesia reduces overwinter survival in root voles (Rodentia: Cricetidae)

NWIPB OpenIR

	Effects of parasites and predators on nociception: decreases analgesia reduces overwinter survival in root voles (Rodentia: Cricetidae)
	Yang, Yuan-Gang; Shang, Guo-Zhen; Wu, Xue-Qin; Chen, Hui-Qing; Wu, Yan; Cao, Yi-Fan; Bian, Jiang-Hui
	2021
发表期刊	ZOOLOGIA
卷号	38
摘要	Growing evidence suggests that parasite-infected prey is more vulnerable to predation. However, the mechanism underlying this phenomenon is obscure. In small mammals, analgesia induced by environmental stressors is a fundamental component of the defensive repertoire, promoting defensive responses. Thus, the reduced analgesia may impair the defensive ability of prey and increase their predation risk. This study aimed to determine whether coccidia infection increases the vulnerability to predation in root voles, Microtus oeconomus (Pallas, 1776), by decreased analgesia. Herein, a predator stimulus and parasitic infection were simulated in the laboratory via a two-level factorial experiment, then, the vole nociceptive responses to an aversive thermal stimulus were evaluated. Further, a field experiment was performed to determine the overwinter survival of voles with different nociceptive responses via repeated live trapping. The coccidia-infected voles demonstrated reduced predator-induced analgesia following exposure to predator odor. Meanwhile, pain-sensitive voles had lower overwinter survival than pain-inhibited voles in enclosed populations throughout the duration of the experiment. Our findings suggest that coccidia infection attenuates predator-induced analgesia, resulting in an increased vulnerability to predation.
关键词	Analgesic response coccidian infection predation effect small mammal
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60773
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yang, Yuan-Gang,Shang, Guo-Zhen,Wu, Xue-Qin,et al. Effects of parasites and predators on nociception: decreases analgesia reduces overwinter survival in root voles (Rodentia: Cricetidae)[J]. ZOOLOGIA,2021,38.
APA	Yang, Yuan-Gang.,Shang, Guo-Zhen.,Wu, Xue-Qin.,Chen, Hui-Qing.,Wu, Yan.,...&Bian, Jiang-Hui.(2021).Effects of parasites and predators on nociception: decreases analgesia reduces overwinter survival in root voles (Rodentia: Cricetidae).ZOOLOGIA,38.
MLA	Yang, Yuan-Gang,et al."Effects of parasites and predators on nociception: decreases analgesia reduces overwinter survival in root voles (Rodentia: Cricetidae)".ZOOLOGIA 38(2021).