Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears
Background: Diet and environment impact the composition of mammalian intestinal microbiota; dietary or health disturbances trigger alterations in intestinal microbiota composition and render the host susceptible to enteric pathogens. To date no long term monitoring data exist on the fecal microbiota...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.288.617 2023-05-15T18:42:08+02:00 Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears Clarissa Schwab Bogdan Cristescu Joseph M. Northrup Gordon B. Stenhouse Michael Gänzle The Pennsylvania State University CiteSeerX Archives 2011 application/zip http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.288.617 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.288.617 Metadata may be used without restrictions as long as the oai identifier remains attached to it. ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/d3/08/PLoS_One_2011_Dec_15_6(12)_e27905.tar.gz text 2011 ftciteseerx 2016-01-07T21:24:40Z Background: Diet and environment impact the composition of mammalian intestinal microbiota; dietary or health disturbances trigger alterations in intestinal microbiota composition and render the host susceptible to enteric pathogens. To date no long term monitoring data exist on the fecal microbiota and pathogen load of carnivores either in natural environments or in captivity. This study investigates fecal microbiota composition and the presence of pathogenic Escherichia coli and toxigenic clostridia in wild and captive grizzly bears (Ursus arctos) and relates these to food resources consumed by bears. Methodology/Principal Findings: Feces were obtained from animals of two wild populations and from two captive animals during an active bear season. Wild animals consumed a diverse diet composed of plant material, animal prey and insects. Captive animals were fed a regular granulated diet with a supplement of fruits and vegetables. Bacterial populations were analyzed using quantitative PCR. Fecal microbiota composition fluctuated in wild and in captive animals. The abundance of Clostridium clusters I and XI, and of C. perfringens correlated to regular diet protein intake. Enteroaggregative E. coli were consistently present in all populations. The C. sordellii phospholipase C was identified in three samples of wild animals and for the first time in Ursids. Conclusion: This is the first longitudinal study monitoring the fecal microbiota of wild carnivores and comparing it to that of Text Ursus arctos Unknown |
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Background: Diet and environment impact the composition of mammalian intestinal microbiota; dietary or health disturbances trigger alterations in intestinal microbiota composition and render the host susceptible to enteric pathogens. To date no long term monitoring data exist on the fecal microbiota and pathogen load of carnivores either in natural environments or in captivity. This study investigates fecal microbiota composition and the presence of pathogenic Escherichia coli and toxigenic clostridia in wild and captive grizzly bears (Ursus arctos) and relates these to food resources consumed by bears. Methodology/Principal Findings: Feces were obtained from animals of two wild populations and from two captive animals during an active bear season. Wild animals consumed a diverse diet composed of plant material, animal prey and insects. Captive animals were fed a regular granulated diet with a supplement of fruits and vegetables. Bacterial populations were analyzed using quantitative PCR. Fecal microbiota composition fluctuated in wild and in captive animals. The abundance of Clostridium clusters I and XI, and of C. perfringens correlated to regular diet protein intake. Enteroaggregative E. coli were consistently present in all populations. The C. sordellii phospholipase C was identified in three samples of wild animals and for the first time in Ursids. Conclusion: This is the first longitudinal study monitoring the fecal microbiota of wild carnivores and comparing it to that of |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Clarissa Schwab Bogdan Cristescu Joseph M. Northrup Gordon B. Stenhouse Michael Gänzle |
spellingShingle |
Clarissa Schwab Bogdan Cristescu Joseph M. Northrup Gordon B. Stenhouse Michael Gänzle Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
author_facet |
Clarissa Schwab Bogdan Cristescu Joseph M. Northrup Gordon B. Stenhouse Michael Gänzle |
author_sort |
Clarissa Schwab |
title |
Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
title_short |
Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
title_full |
Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
title_fullStr |
Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
title_full_unstemmed |
Diet and Environment Shape Fecal Bacterial Microbiota Composition and Enteric Pathogen Load of Grizzly Bears |
title_sort |
diet and environment shape fecal bacterial microbiota composition and enteric pathogen load of grizzly bears |
publishDate |
2011 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.288.617 |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/d3/08/PLoS_One_2011_Dec_15_6(12)_e27905.tar.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.288.617 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766231744207388672 |