Effects of ex situ conservation on commensal bacteria of crocodile lizard and conservation implications.

IF 7.9 2区 农林科学 Q1 VETERINARY SCIENCES
Veterinary Quarterly Pub Date : 2025-12-01 Epub Date: 2025-02-10 DOI:10.1080/01652176.2025.2463704
Haiying Jiang, Mei Lv, Tengfei He, Mujiao Xie, Zhiwen Zhao, Jiasong He, Shuyi Luo, Yide Guo, Jinping Chen
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引用次数: 0

Abstract

Ex situ conservation is an important wildlife conservation strategy, but endangered wildlife in captivity often exhibit high disease rates. Commensal microorganisms are vital for homeostasis, immunity, and linked to diseases. This study analyzed the structure, assembly, variations of the symbiotic microbiota of the endangered crocodile lizard, and their relationship with environment, as well as the effects of captivity on them, to explore why captive reptiles face high dermatosis rates. Results showed that the reptile's microbiota significantly differ from that of its habitat, demonstrating niche specificity. While species richness among organs showed no significant differences, microbial diversity varied considerably. Skin microbiota showed no site-specific clustering. The assembly of skin, oral, and intestinal bacterial communities was dominated by homogeneous selection. The gut and oral bacterial networks were resilient to disturbances, while the skin bacterial network was sensitive. Captivity primarily affected the skin microbiota, reducing its diversity and stability, thereby increasing disease risk, and these effects were not solely attributable to environmental changes. These findings suggested that skin microbial changes in captive reptiles may be responsible for their increased susceptibility to dermatosis in ex situ conservation. This study underscored the importance of understanding reptile-associated microbes for effective conservation strategies and offers potential solutions.

迁地保护对鳄鱼蜥蜴共生细菌的影响及其保护意义。
迁地保护是一种重要的野生动物保护策略,但圈养的濒危野生动物往往表现出较高的发病率。共生微生物对体内平衡、免疫至关重要,并与疾病有关。本研究分析了濒危鳄鱼蜥蜴的共生微生物群的结构、组成、变化及其与环境的关系,以及圈养对它们的影响,探讨了圈养爬行动物面临高皮肤病发病率的原因。结果表明,该爬行动物的微生物群与其栖息地存在显著差异,具有生态位特异性。各器官间物种丰富度差异不显著,但微生物多样性差异较大。皮肤微生物群没有显示出特定位点的聚类。皮肤、口腔和肠道细菌群落的聚集以同质选择为主。肠道和口腔细菌网络对干扰具有弹性,而皮肤细菌网络则很敏感。圈养主要影响皮肤微生物群,降低其多样性和稳定性,从而增加疾病风险,而这些影响并非完全归因于环境变化。这些发现表明,圈养爬行动物的皮肤微生物变化可能是它们对非原位保护的皮肤病易感性增加的原因。这项研究强调了了解爬行动物相关微生物对有效保护策略的重要性,并提供了潜在的解决方案。
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来源期刊
Veterinary Quarterly
Veterinary Quarterly VETERINARY SCIENCES-
CiteScore
13.10
自引率
1.60%
发文量
18
审稿时长
>24 weeks
期刊介绍: Veterinary Quarterly is an international open access journal which publishes high quality review articles and original research in the field of veterinary science and animal diseases. The journal publishes research on a range of different animal species and topics including: - Economically important species such as domesticated and non-domesticated farm animals, including avian and poultry diseases; - Companion animals (dogs, cats, horses, pocket pets and exotics); - Wildlife species; - Infectious diseases; - Diagnosis; - Treatment including pharmacology and vaccination
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