John Dunbar
Los Alamos National Laboratory
63 Papers
459 Citations
John Dunbar is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Biology & Microcosm. The author has an hindex of 20, co-authored 58 publications. Previous affiliations of John Dunbar include Michigan State University.
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Papers
Computational Improvements Reveal Great Bacterial Diversity and High Metal Toxicity in Soil
TL;DR: In this article, the abundance distribution and total diversity of soil bacterial communities were deciphered using reassociation kinetics for bacterial community DNA from pristine and metal-polluted soils, showing that a power law best described the abundance distributions.
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rRNA operon copy number reflects ecological strategies of bacteria.
TL;DR: It is found that the number of rRNA genes correlates with the rate at which phylogenetically diverse bacteria respond to resource availability, and phenotypic effects associated with rRNA gene copy number are indicative of ecological strategies influencing the structure of natural microbial communities.
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Phylogenetic specificity and reproducibility and new method for analysis of terminal restriction fragment profiles of 16S rRNA genes from bacterial communities.
TL;DR: An analytical procedure is developed that reduces variation and extracts a reproducible subset of data from replicate TRF profiles and can be used with other DNA fingerprinting techniques for microbial communities or microbial genomes.
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Response to Comment by Volkov et al. on ``Computational Improvements Reveal Great Bacterial Diversity and High Metal Toxicity in Soil''
TL;DR: It is pointed out that currently available data do not support claims that significant conclusions about the total number of species cannot be made because different abundance models cannot be distinguished and the sensitivity of the chi-square measure to changes in estimates of S is low.
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Solutions in microbiome engineering: prioritizing barriers to organism establishment.
Michaeline B. N. Albright,Stilianos Louca,Daniel E. Winkler,Kelli L. Feeser,Sarah-Jane Haig,Katrine Whiteson,Joanne B. Emerson,John Dunbar +7 more
TL;DR: In this paper, the authors adopt a framework from invasion biology that summarizes establishment barriers in three categories: (1) propagule pressure, (2) environmental filtering, and (3) biotic interactions factors.