Ex situ diet influences the bacterial community associated with the skin of red-eyed tree frogs (Agalychnis callidryas)

Amphibians support symbiotic bacterial communities on their skin that protect against a range of infectious pathogens, including the amphibian chytrid fungus. The conditions under which amphibians are maintained in captivity (e.g. diet, substrate, enrichment) in ex situ conservation programmes may affect the composition of the bacterial community. In addition, ex situ amphibian populations may support different bacterial communities in comparison to in situ populations of the same species. This could have implications for the suitability of populations intended for reintroduction, as well as the success of probiotic bacterial inoculations intended to provide amphibians with a bacterial community that resists invasion by the chytrid fungus. We aimed to investigate the effect of a carotenoid-enriched diet on the culturable bacterial community associated with captive red-eyed tree frogs (Agalychnis callidryas) and make comparisons to bacteria isolated from a wild population from the Chiqui...

两栖动物的皮肤表面定殖有可抵御多种传染性病原体的共生细菌群落（symbiotic bacterial communities），其中包括两栖类壶菌（amphibian chytrid fungus）。在迁地保护（ex situ conservation）项目中，圈养两栖动物的饲养条件（如日粮、垫料、丰容措施）可能会影响其体表细菌群落的组成。此外，同一物种的圈养种群与原位（in situ）野生种群所携带的细菌群落结构可能存在差异。这一差异可能会对用于再引入（reintroduction）计划的种群适用性，以及旨在帮助两栖动物构建可抵御壶菌入侵的细菌群落的益生菌接种（probiotic bacterial inoculations）策略的实施效果产生潜在影响。本研究旨在探究日粮添加类胡萝卜素对圈养红眼树蛙（Agalychnis callidryas）体表可培养细菌群落（culturable bacterial community）的影响，并将其与来自奇基（Chiqui...）野生种群分离得到的细菌开展对比分析。