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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Age-related differences in the cloacal microbiota of a wild bird species
BMC Ecology, Volume 13, Article 11, Year 2013
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Description
Background: Gastrointestinal bacteria play a central role in the health of animals. The bacteria that individuals acquire as they age may therefore have profound consequences for their future fitness. However, changes in microbial community structure with host age remain poorly understood. We characterised the cloacal bacteria assemblages of chicks and adults in a natural population of black-legged kittiwakes (Rissa tridactyla), using molecular methods.Results: We show that the kittiwake cloaca hosts a diverse assemblage of bacteria. A greater number of total bacterial OTUs (operational taxonomic units) were identified in chicks than adults, and chicks appeared to host a greater number of OTUs that were only isolated from single individuals. In contrast, the number of bacteria identified per individual was higher in adults than chicks, while older chicks hosted more OTUs than younger chicks. Finally, chicks and adults shared only seven OTUs, resulting in pronounced differences in microbial assemblages. This result is surprising given that adults regurgitate food to chicks and share the same nesting environment.Conclusions: Our findings suggest that chick gastrointestinal tracts are colonised by many transient species and that bacterial assemblages gradually transition to a more stable adult state. Phenotypic differences between chicks and adults may lead to these strong differences in bacterial communities. These data provide the framework for future studies targeting the causes and consequences of variation in bacterial assemblages in wild birds. © 2013 van Dongen et al.; licensee BioMed Central Ltd.
Authors & Co-Authors
van Dongen, Wouter F.D.
Austria, Vienna
Konrad Lorenz Institute for Ethology
Brandl, Hanja B.
Austria, Vienna
Konrad Lorenz Institute for Ethology
Moodley, Yoshan
Austria, Vienna
Konrad Lorenz Institute for Ethology
Leclaire, Sarah
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Blanchard, Pierrick
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Danchin, Etienne G.J.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Hatch, Scott A.
United States, Reston
United States Geological Survey
Statistics
Citations: 112
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1186/1472-6785-13-11
ISSN:
14726785
Research Areas
Food Security
Study Design
Cross Sectional Study