Microbiota and the volatile profile of avian nests are associated with each other and with the intensity of parasitism.

IF 3.5 3区 生物学 Q2 MICROBIOLOGY
Mónica Mazorra-Alonso, Juan Manuel Peralta-Sánchez, Philipp Heeb, Staffan Jacob, Manuel Martin-Vivaldi, Manuel Martínez-Bueno, Rafael Núñez-Gómez, Oriol Sacristán-Soriano, Juan José Soler
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引用次数: 0

Abstract

Bacteria have been suggested as being partially responsible for avian nest odours and, thus, volatiles from their metabolism could influence the intensity of selection pressures due to parasites detecting olfactory cues of their hosts. Here, we tested this hypothesis by exploring intraspecific and interspecific variability in microbial environments, volatile profiles and intensity of ectoparasitism by Carnus hemapterus in the nests of 10 avian species. As expected, we found that (i) alpha and beta diversity of microbial and volatile profiles were associated with each other. Moreover, (ii) alpha diversity of bacteria and volatiles of the nest environment, as well as some particular bacteria and volatiles, was associated with the intensity of parasitism at early and late stages of the nestling period. Finally, (iii) alpha diversity of the nest microbiota, as well as some particular bacteria and volatiles, was correlated with fledging success. When considering them together, the results support the expected links between the microbial environment and nest odours in different bird species, and between the microbial environment and both ectoparasitism intensity and fledging success. Relative abundances of particular volatiles and bacteria predicted ectoparasitism and/or fledging success. Future research should prioritise experimental approaches directed to determine the role of bacteria and volatiles in the outcomes of host-ectoparasite interactions.

鸟巢的微生物群和挥发性特征与寄生虫寄生强度相互关联。
细菌被认为是鸟巢气味的部分成因,因此,细菌代谢产生的挥发物可能会影响寄生虫检测宿主嗅觉线索所产生的选择压力的强度。在这里,我们通过探索十种鸟类巢穴中微生物环境、挥发物特征和半爪鸮体外寄生强度的种内和种间变异来验证这一假设。不出所料,我们发现:(i) 微生物和挥发性特征的阿尔法和贝塔多样性相互关联。此外,(ii) 鸟巢环境中细菌和挥发性物质的阿尔法多样性以及某些特定细菌和挥发性物质与雏鸟早期和晚期的寄生强度有关。最后,(iii)巢内微生物群的α多样性以及一些特定的细菌和挥发性物质与雏鸟的羽化成功率相关。综合考虑这些因素,结果支持不同鸟类的微生物环境与巢气味之间的预期联系,以及微生物环境与外寄生强度和羽化成功率之间的预期联系。特定挥发性物质和细菌的相对丰度可预测外寄生和/或羽化成功率。未来的研究应优先采用实验方法来确定细菌和挥发性物质在宿主与外寄生虫相互作用结果中的作用。
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来源期刊
FEMS microbiology ecology
FEMS microbiology ecology 生物-微生物学
CiteScore
7.50
自引率
2.40%
发文量
132
审稿时长
3 months
期刊介绍: FEMS Microbiology Ecology aims to ensure efficient publication of high-quality papers that are original and provide a significant contribution to the understanding of microbial ecology. The journal contains Research Articles and MiniReviews on fundamental aspects of the ecology of microorganisms in natural soil, aquatic and atmospheric habitats, including extreme environments, and in artificial or managed environments. Research papers on pure cultures and in the areas of plant pathology and medical, food or veterinary microbiology will be published where they provide valuable generic information on microbial ecology. Papers can deal with culturable and non-culturable forms of any type of microorganism: bacteria, archaea, filamentous fungi, yeasts, protozoa, cyanobacteria, algae or viruses. In addition, the journal will publish Perspectives, Current Opinion and Controversy Articles, Commentaries and Letters to the Editor on topical issues in microbial ecology. - Application of ecological theory to microbial ecology - Interactions and signalling between microorganisms and with plants and animals - Interactions between microorganisms and their physicochemical enviornment - Microbial aspects of biogeochemical cycles and processes - Microbial community ecology - Phylogenetic and functional diversity of microbial communities - Evolutionary biology of microorganisms
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