D
David M. Needham
Researcher at University of Southern California
Publications - 30
Citations - 4338
David M. Needham is an academic researcher from University of Southern California. The author has contributed to research in topics: 18S ribosomal RNA & Genome. The author has an hindex of 17, co-authored 30 publications receiving 2858 citations. Previous affiliations of David M. Needham include Auburn University & Monterey Bay Aquarium Research Institute.
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Journal ArticleDOI
Elucidating terrestrial nutrient sources to a coastal lagoon, Chincoteague Bay, Maryland, USA
Benjamin Fertig,Judith M. O’Neil,Kris Beckert,C.J. Cain,David M. Needham,Tim J. B. Carruthers,William C. Dennison +6 more
TL;DR: In this paper, the authors examined nitrogen sources through synoptic water quality monitoring, stable nitrogen isotope signatures (δ15N) of in situ bioindicators, and denitrification estimates in Johnson Bay, an embayment of Chincoteague Bay, Maryland-Virginia, USA.
Journal ArticleDOI
Vertical and Seasonal Patterns Control Bacterioplankton Communities at Two Horizontally Coherent Coastal Upwelling Sites off Galicia (NW Spain).
Víctor Hernando-Morales,Marta M. Varela,David M. Needham,Jacob A. Cram,Jacob A. Cram,Jed A. Fuhrman,Eva Teira +6 more
TL;DR: Bacterial-mediated carbon fluxes in this productive region appear to be mainly controlled by community structure dynamics in surface waters, and local environmental factors at the base of the euphotic zone, consistent with previous temporal studies of marine bacterioplankton in other temperate regions.
Posted ContentDOI
Influence of light on particulate organic matter utilization by attached and free-living marine bacteria
Laura Gómez-Consarnau,Laura Gómez-Consarnau,David M. Needham,Peter K. Weber,Jed A. Fuhrman,Xavier Mayali +5 more
TL;DR: Results show that light influences particle degradation and C and N incorporation by attached bacteria, suggesting that the transfer between particulate and free-living phases are likely affected by external factors that change with the light regime, such as time of day, depth and season.
Journal ArticleDOI
Microhabitat use and photoacclimation in the clownfish sea anemone Entacmaea quadricolor
TL;DR: In this paper, the authors determined variation in ambient irradiance and patterns of abundance, microhabitat use, chlorophyll and microalgal cell concentrations in clownfish sea anemones Entacmaea quadricolor from 0 to 43m depth on a coral reef at Aqaba, Jordan, northern Red Sea.
Posted ContentDOI
Comprehensive single-PCR 16S and 18S rRNA community analysis validated with mock communities and denoising algorithms
TL;DR: The potential for universal primers to generate quantitative and comprehensive microbiome profiles, although gene copy and genome size variability should be considered - as for any quantitative genetic analysis, is demonstrated.