Inter-annual variation of physiological traits between urban and forest great tits

Saulnier, Agnès; Bleu, Josefa; Boos, Anne; Millet, Maurice; Zahn, Sandrine; Ronot, Pascale; Masoudi, Islah El; Rojas, Emilio; Uhlrich, Pierre; Nero, Mirella Del; Massemin, Sylvie

doi:10.1016/j.cbpa.2023.111385

Cited by 2 publications

(1 citation statement)

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“…We found no evidence for population differences in the gut microbiome diversity or composition. This is surprising in light of apparent differences in environmental factors and given that great tits also show population-level differences in physiology (Saulnier et al, 2023) phenotypes (Dingemanse et al, 2012; Gamero et al, 2015), and minor genetic differentiation (Lemoine et al, 2016; Noordwijk et al, 2002), which have been shown to contribute to among-population variation in the gut microbiome of various taxa (Gadau et al, 2019; Meng et al, 2014; Spor et al, 2011; S. Wang et al, 2018; Wen et al, 2021). We observed high within-population variation in gut microbiome diversity, which was expected because especially in smaller bird species individual variation in gut microbiome diversity has been found to be very high (as mentioned in Bodawatta et al, 2021b).…”

Section: Discussionmentioning

confidence: 99%

Seasonal and environmental factors contribute to the variation in the gut microbiome: a large-scale study of a small bird

Liukkonen,

Muriel,

Martínez-Padilla

et al. 2023

Preprint

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Environmental variation can shape the gut microbiome, but majority of studies use captive-bred species, while data on large-scale variation in the gut microbiome and the associated environmental factors is lacking. Furthermore, previous studies have limited taxonomical coverage, and for example knowledge about avian gut microbiomes is still scarce. We investigated large-scale environmental variation in the gut microbiome of wild adult great tits across the species’ European distribution range. Our results show that gut microbiome diversity is higher during winter and that there are compositional differences between winter and summer gut microbiomes. During winter, individuals inhabiting mixed forest habitat show higher gut microbiome diversity, whereas there was no similar association during summer. Also, temperature was found to be a small contributor to compositional differences in the gut microbiome. We did not find significant differences in the gut microbiome among populations, nor any association between latitude, rainfall, and the gut microbiome. The results suggest that there is a seasonal change in wild avian gut microbiomes, but that there are still many unknown factors that shape the gut microbiome of wild bird populations.

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Section: Discussionmentioning

confidence: 99%

Seasonal and environmental factors contribute to the variation in the gut microbiome: a large-scale study of a small bird

Liukkonen,

Muriel,

Martínez-Padilla

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Seasonal and environmental factors contribute to the variation in the gut microbiome: A large‐scale study of a small bird

Liukkonen,

Muriel,

Martínez‐Padilla

et al. 2024

Journal of Animal Ecology

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Environmental variation can shape the gut microbiome, but broad/large‐scale data on among and within‐population heterogeneity in the gut microbiome and the associated environmental factors of wild populations is lacking. Furthermore, previous studies have limited taxonomical coverage, and knowledge about wild avian gut microbiomes is still scarce. We investigated large‐scale environmental variation in the gut microbiome of wild adult great tits across the species' European distribution range. We collected fecal samples to represent the gut microbiome and used the 16S rRNA gene sequencing to characterize the bacterial gut microbiome. Our results show that gut microbiome diversity is higher during winter and that there are compositional differences between winter and summer gut microbiomes. During winter, individuals inhabiting mixed forest habitat show higher gut microbiome diversity, whereas there was no similar association during summer. Also, temperature was found to be a small contributor to compositional differences in the gut microbiome. We did not find significant differences in the gut microbiome among populations, nor any association between latitude, rainfall and the gut microbiome. The results suggest that there is a seasonal change in wild avian gut microbiomes, but that there are still many unknown factors that shape the gut microbiome of wild bird populations.

show abstract

Inter-annual variation of physiological traits between urban and forest great tits

Cited by 2 publications

References 64 publications

Seasonal and environmental factors contribute to the variation in the gut microbiome: a large-scale study of a small bird

Seasonal and environmental factors contribute to the variation in the gut microbiome: a large-scale study of a small bird

Seasonal and environmental factors contribute to the variation in the gut microbiome: A large‐scale study of a small bird

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