Bat Ecology and Microbiome of the Gut: A Narrative Review of Associated Potentials in Emerging and Zoonotic Diseases.

Simple Summary: This work provides an overview on the impact of bats' diet on their intestinal microorganism community and its influence on potential pathogenicity. Human expansion generates natural habitat alterations, which force bats to seek alternative sites, leading to contact with other animals, including humans. Exploring the relationship between the dietary habits of bats and the variety of their microbiome could contribute elucidating the potential role of bats as reservoirs of multidrug-resistant microorganisms and their implications in the dissemination of mutating viruses and antibiotic-resistant bacteria in the environment and possibly in their transmission to human and to domestic and wild animals. In this review, we tentatively tried to connect the most recent findings on the bat microbiome and to investigate on their microbial communities, that may vary even in conspecific hosts and are influenced by host physiology, feeding behavior and diet, social interactions, but also by habitat diversity and climate change. From a conservation perspective, understanding the potentially negative and indirect effects of habitat destruction on animal microbiota can also play a crucial role in the conservation and management of the host itself. According to the One Health concept, which recognizes an interdependence between humans, animals, and the environment, bat microbiota represents an indicator of host and environmental health, besides allowing for evaluation of the risk of emerging infectious diseases. We noticed that a growing number of studies suggest that animal microbiota may respond in various ways to changes in land use, particularly when such changes lead to altered or deficient food resources. We have highlighted that the current literature is strongly focused on the initial phase of investigating the microbial communities found in Chiroptera from various habitats. However, there are gaps in effectively assessing the impacts of pathogens and microbial communities in general in animal conservation, veterinary, and public health. A deeper understanding of bat microbiomes is paramount to the implementation of correct habitat and host management and to the development of effective surveillance protocols worldwide. [ABSTRACT FROM AUTHOR]