Search Results - "Davis, Catherine V"
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Paleoceanographic insights on recent oxygen minimum zone expansion: lessons for modern oceanography
Published in PloS one (28-01-2015)“…Climate-driven Oxygen Minimum Zone (OMZ) expansions in the geologic record provide an opportunity to characterize the spatial and temporal scales of OMZ…”
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Photosymbiont associations persisted in planktic foraminifera during early Eocene hyperthermals at Shatsky Rise (Pacific Ocean)
Published in PloS one (26-09-2022)“…Understanding the sensitivity of species-level responses to long-term warming will become increasingly important as we look towards a warmer future. Here, we…”
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Intermediate water circulation drives distribution of Pliocene Oxygen Minimum Zones
Published in Nature communications (04-01-2023)“…Oxygen minimum zones (OMZs) play a critical role in global biogeochemical cycling and act as barriers to dispersal for marine organisms. OMZs are currently…”
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Deglacial restructuring of the Eastern equatorial Pacific oxygen minimum zone
Published in Communications earth & environment (27-06-2022)“…Abstract Oxygenation in the Eastern Equatorial Pacific is responsive to ongoing climate change in the modern ocean, although whether the region saw a deglacial…”
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A deep-learning automated image recognition method for measuring pore patterns in closely related bolivinids and calibration for quantitative nitrate paleo-reconstructions
Published in Scientific reports (10-11-2023)“…Eutrophication is accelerating the recent expansion of oxygen-depleted coastal marine environments. Several bolivinid foraminifera are abundant in these…”
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Link between light-triggered Mg-banding and chamber formation in the planktic foraminifera Neogloboquadrina dutertrei
Published in Nature communications (15-05-2017)“…The relationship between seawater temperature and the average Mg/Ca ratios in planktic foraminifera is well established, providing an essential tool for…”
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Vertical distribution of planktic foraminifera through an oxygen minimum zone: how assemblages and test morphology reflect oxygen concentrations
Published in Biogeosciences (10-02-2021)“…Oxygen-depleted regions of the global ocean are rapidly expanding, with important implications for global biogeochemical cycles. However, our ability to make…”
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Ocean acidification compromises a planktic calcifier with implications for global carbon cycling
Published in Scientific reports (22-05-2017)“…Anthropogenically-forced changes in ocean chemistry at both the global and regional scale have the potential to negatively impact calcifying plankton, which…”
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Trace element composition of modern planktic foraminifera from an oxygen minimum zone: Potential proxies for an enigmatic environment
Published in Frontiers in Marine Science (29-03-2023)“…Oxygen limited marine environments, such as oxygen minimum zones, are of profound importance for global nutrient cycling and vertical habitat availability…”
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Cyanobacterial endobionts within a major marine planktonic calcifier (Globigerina bulloides, Foraminifera) revealed by 16S rRNA metabarcoding
Published in Biogeosciences (28-02-2017)“…We investigated the possibility of bacterial symbiosis in Globigerina bulloides, a palaeoceanographically important, planktonic foraminifer. This marine…”
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Factors influencing test porosity in planktonic foraminifera
Published in Biogeosciences (07-11-2018)“…The clustering of mitochondria near pores in the test walls of foraminifera suggests that these perforations play a critical role in metabolic gas exchange. As…”
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Using the Stable Isotopic Composition of Heliconoides inflatus Pteropod Shells to Determine Calcification Depth in the Cariaco Basin
Published in Frontiers in Marine Science (14-01-2021)“…Pteropods have been hailed as the “canary in the coal mine” for ocean acidification, however, questions remain about their life history, habitat, and the…”
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Planktic foraminifera iodine/calcium ratios from plankton tows
Published in Frontiers in Marine Science (02-02-2023)“…Planktic foraminifera test iodine to calcium ratios represent an emerging proxy method to assess subsurface seawater oxygenation states. Several core-top…”
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16S rRNA gene metabarcoding and TEM reveals different ecological strategies within the genus Neogloboquadrina (planktonic foraminifer)
Published in PloS one (01-01-2018)“…Uncovering the complexities of trophic and metabolic interactions among microorganisms is essential for the understanding of marine biogeochemical cycling and…”
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Barium enrichment in the non-spinose planktic foraminifer, Globorotalia truncatulinoides
Published in Geochimica et cosmochimica acta (15-09-2022)“…Observations of elevated barium-to-calcium ratios (Ba/Ca) in Globorotalia truncatulinoides have been attributed to contaminant phases, deep calcification depth…”
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Ba/Ca ratios in the non-spinose planktic foraminifer Neogloboquadrina dutertrei: Evidence for an organic aggregate microhabitat
Published in Geochimica et cosmochimica acta (01-09-2018)“…Ba/Ca ratios in many non-spinose planktic foraminifera are markedly higher than those observed in spinose planktic species, but the cause for these high Ba/Ca…”
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Seasonal and interannual changes in planktic foraminiferal fluxes and species composition in Guaymas Basin, Gulf of California
Published in Marine micropaleontology (01-05-2019)“…Paleoclimate records based on planktic foraminifera shells are reliant upon an understanding of how populations respond to annual and interannual changes in…”
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Relationships Between Temperature, pH, and Crusting on Mg/Ca Ratios in Laboratory‐Grown Neogloboquadrina Foraminifera
Published in Paleoceanography (01-11-2017)“…Mg/Ca ratio paleothermometry in foraminifera is an important tool for the reconstruction and interpretation of past environments. However, existing…”
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Reconstructing Aragonite Saturation State Based on an Empirical Relationship for Northern California
Published in Estuaries and coasts (01-11-2018)“…Ocean acidification is a global phenomenon with highly regional spatial and temporal patterns. In order to address the challenges of future ocean acidification…”
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Benthic foraminiferal shell weight: Deglacial species-specific responses from the Santa Barbara Basin
Published in Marine micropaleontology (01-04-2016)“…Here we present a record of size-normalized shell weight for four species of benthic foraminifera through a period of rapid environmental change during the…”
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