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Wildlife gut microbiomes of sympatric generalist species respond differently to anthropogenic landscape disturbances.


ABSTRACT:

Background

Human encroachment into nature and the accompanying environmental changes are a big concern for wildlife biodiversity and health. While changes on the macroecological scale, i.e. species community and abundance pattern, are well documented, impacts on the microecological scale, such as the host's microbial community, remain understudied. Particularly, it is unclear if impacts of anthropogenic landscape modification on wildlife gut microbiomes are species-specific. Of special interest are sympatric, generalist species, assumed to be more resilient to environmental changes and which often are well-known pathogen reservoirs and drivers of spill-over events. Here, we analyzed the gut microbiome of three such sympatric, generalist species, one rodent (Proechimys semispinosus) and two marsupials (Didelphis marsupialis and Philander opossum), captured in 28 study sites in four different landscapes in Panama characterized by different degrees of anthropogenic disturbance.

Results

Our results show species-specific gut microbial responses to the same landscape disturbances. The gut microbiome of P. semispinosus was less diverse and more heterogeneous in landscapes with close contact with humans, where it contained bacterial taxa associated with humans, their domesticated animals, and potential pathogens. The gut microbiome of D. marsupialis showed similar patterns, but only in the most disturbed landscape. P. opossum, in contrast, showed little gut microbial changes, however, this species' absence in the most fragmented landscapes indicates its sensitivity to long-term isolation.

Conclusion

These results demonstrate that wildlife gut microbiomes even in generalist species with a large ecological plasticity are impacted by human encroachment into nature, but differ in resilience which can have critical implications on conservation efforts and One Health strategies.

SUBMITTER: Heni AC 

PROVIDER: S-EPMC10080760 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Wildlife gut microbiomes of sympatric generalist species respond differently to anthropogenic landscape disturbances.

Heni Alexander Christoph AC   Fackelmann Gloria G   Eibner Georg G   Kreinert Swetlana S   Schmid Julian J   Schwensow Nina Isabell NI   Wiegand Jonas J   Wilhelm Kerstin K   Sommer Simone S  

Animal microbiome 20230406 1


<h4>Background</h4>Human encroachment into nature and the accompanying environmental changes are a big concern for wildlife biodiversity and health. While changes on the macroecological scale, i.e. species community and abundance pattern, are well documented, impacts on the microecological scale, such as the host's microbial community, remain understudied. Particularly, it is unclear if impacts of anthropogenic landscape modification on wildlife gut microbiomes are species-specific. Of special i  ...[more]

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