D
David J. Van Horn
Researcher at University of New Mexico
Publications - 43
Citations - 18686
David J. Van Horn is an academic researcher from University of New Mexico. The author has contributed to research in topics: Ecosystem & Soil water. The author has an hindex of 18, co-authored 35 publications receiving 15902 citations. Previous affiliations of David J. Van Horn include University of Michigan.
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Introducing mothur: Open-Source, Platform-Independent, Community-Supported Software for Describing and Comparing Microbial Communities
Patrick D. Schloss,Patrick D. Schloss,Sarah L. Westcott,Sarah L. Westcott,Thomas Ryabin,Justine R. Hall,Martin Hartmann,Emily B. Hollister,Ryan A. Lesniewski,Brian B. Oakley,Donovan H. Parks,Courtney J. Robinson,Jason W. Sahl,Blaz Stres,Gerhard G. Thallinger,David J. Van Horn,Carolyn F. Weber +16 more
TL;DR: M mothur is used as a case study to trim, screen, and align sequences; calculate distances; assign sequences to operational taxonomic units; and describe the α and β diversity of eight marine samples previously characterized by pyrosequencing of 16S rRNA gene fragments.
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Measuring phenol oxidase and peroxidase activities with pyrogallol, l-DOPA, and ABTS: Effect of assay conditions and soil type
Christopher E. Bach,Daniel D. Warnock,David J. Van Horn,Michael N. Weintraub,Robert L. Sinsabaugh,Steven D. Allison,Donovan P. German +6 more
TL;DR: This work compared three substrates commonly used to assay phenol oxidase and peroxidase in soil and compared activities, finding that activities on the substrates followed the trend PYGL > L-DOPA > ABTS and were inversely related to substrate redox potential.
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Soil Microbial Responses to Increased Moisture and Organic Resources along a Salinity Gradient in a Polar Desert
David J. Van Horn,Jordan G. Okie,Jordan G. Okie,Heather N. Buelow,Michael N. Gooseff,John E. Barrett,Cristina D. Takacs-Vesbach +6 more
TL;DR: The results from this experimental work suggest that microbial communities in this environment will undergo rapid change in response to the altered resources resulting from climate change impacts occurring in this region.
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Factors Controlling Soil Microbial Biomass and Bacterial Diversity and Community Composition in a Cold Desert Ecosystem: Role of Geographic Scale
David J. Van Horn,M. Lee Van Horn,John E. Barrett,Michael N. Gooseff,Adam E. Altrichter,Kevin M. Geyer,Lydia H. Zeglin,Cristina D. Takacs-Vesbach +7 more
TL;DR: The goals of the study were to describe the relationships between abiotic characteristics and soil bacteria in this unique, microbially dominated environment, and to test the scale dependence of these relationships in a low complexity ecosystem.
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The McMurdo Dry Valleys: A landscape on the threshold of change
TL;DR: In this paper, the authors show that large regions of the valley bottoms are at risk due to sediment on ice acting as a catalyst for melting, including ice-cement permafrost thaw.