NDLI: Bacterial Diversity Patterns Differ in Soils Developing in Sub-tropical and Cool-Temperate Ecosystems

Content Provider	Springer Nature Link
Author	Shanmugam, Shankar G. Magbanua, Zenaida V. Williams, Mark A. Jangid, Kamlesh Whitman, William B. Peterson, Daniel G. Kingery, William L.
Copyright Year	2016
Abstract	Microbial diversity patterns have been surveyed in many different soils and ecosystems, but we are unaware of studies comparing similar soils developing from similar parent materials in contrasting climates. In 2008, developmental chronosequences with ages ranging from 105 to 500,000 years across Georgia (GA) and Michigan (MI) were studied to investigate how bacterial community composition and diversity change as a result of local environmental gradients that develop during pedogenesis. Geographic factors were studied between and within locations spanning two scales: (1) regionally between 0.1 and 50 and (2) ∼1700 km apart. The diversity was surveyed using high-throughput pyrosequencing, and variance partitioning was used to describe the effects of spatial, environmental, and spatio-environmental factors on bacterial community composition. At the local scale, variation in bacterial communities was most closely related to environmental factors (rM = 0.59, p = 0.0001). There were differences in bacterial communities between the two locations, indicating spatial biogeography. Estimates of bacterial diversity were much greater in MI (numbers of OTU, ACE, and Chao1) and remained 2–3× greater in MI than GA after removing the effect of soil properties. The large differences in diversity between geographically separated bacterial communities in different climates need further investigation. It is not known if the rare members of the community, which contributed to greater bacterial diversity in GA relative to MI, play an important role in ecosystem function but has been hypothesized to play a role in ecosystem resiliency, resistance, and stability. Further research on the link between bacterial diversity and spatial variability related to climate needs further investigation.
Starting Page	556
Ending Page	569
Page Count	14
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	73
Issue Number	3
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2016-11-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Bacterial diversity Ecosystem development Biogeography 16S rRNA sequencing Microbial ecology Soil nutrients Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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