Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Microplastics (20)
- Climate change (15)
- Chemical (11)
- Environmental Monitoring (11)
- Metals (11)
-
- Water Pollutants (11)
- Agriculture (8)
- Lead (8)
- Sea ice (8)
- Accumulation (7)
- Fibres (7)
- Humans (7)
- Adsorption (6)
- Biogeochemistry (6)
- Heavy metals (6)
- International Ocean Discovery Program (6)
- Land degradation (6)
- Rivers (6)
- Seawater (6)
- Trace metals (6)
- XRF (6)
- Arctic (5)
- Community resilience (5)
- Expedition 399 (5)
- Fragments (5)
- Holocene (5)
- IODP (5)
- Microfibres (5)
- Modelling (5)
- Plastics (5)
- Publication Year
- File Type
Articles 841 - 870 of 1483
Full-Text Articles in Entire DC Network
Community Managed Forests Dominate The Catchment Sediment Cascade In The Mid-Hills Of Nepal: A Compound-Specific Stable Isotope Analysis., Hari Ram Upadhayay, Hugh G. Smith, Marco Griepentrog, Samuel Bodé, Roshan Man Bajracharya, William Blake, Wim Cornelis, Pascal Boeckx
Community Managed Forests Dominate The Catchment Sediment Cascade In The Mid-Hills Of Nepal: A Compound-Specific Stable Isotope Analysis., Hari Ram Upadhayay, Hugh G. Smith, Marco Griepentrog, Samuel Bodé, Roshan Man Bajracharya, William Blake, Wim Cornelis, Pascal Boeckx
School of Geography, Earth and Environmental Sciences
Soil erosion by water is critical for soil, lake and reservoir degradation in the mid-hills of Nepal. Identification of the nature and relative contribution of sediment sources in rivers is important to mitigate water erosion within catchments and siltation problems in lakes and reservoirs. We estimated the relative contribution of land uses (i.e. sources) to suspended and streambed sediments in the Chitlang catchment using stable carbon isotope signature (δ13C) of long-chain fatty acids as a tracer input for MixSIAR, a Bayesian mixing model used to apportion sediment sources. Our findings reveal that the relative contribution of land uses varied between …
The Role Of Alkalinity In Setting Water Quality Metrics: Phosphorus Standards In United Kingdom Rivers., Alan D. Tappin, Alba Navarro-Rodriguez, S. D.W. Comber, Paul J. Worsfold
The Role Of Alkalinity In Setting Water Quality Metrics: Phosphorus Standards In United Kingdom Rivers., Alan D. Tappin, Alba Navarro-Rodriguez, S. D.W. Comber, Paul J. Worsfold
School of Geography, Earth and Environmental Sciences
UK implementation of the European Union Water Framework Directive (for the 2015-2021 cycle) Ecological Status (ES) classification for river phosphorus is based on the calculation of reference conditions for reactive phosphorus (RP) using river alkalinity measurements. Underpinning this approach is that the alkalinity is primarily from rock weathering and is free of anthropogenic influences. However, the potential contribution of anthropogenic alkalinity needs to be considered and, if possible, quantified. In the rural South West River Basin District of England, 38 river sites were examined with respect to river alkalinity loads in order to test this consideration. At river base flow …
Nordic Seas Polynyas And Their Role In Preconditioning Marine Productivity During The Last Glacial Maximum., Jochen Knies, Denizcan Köseoğlu, Leif Rise, Nicole Baeten, Valérie K. Bellec, Reidulv Bøe, Martin Klug, Giuliana Panieri, Patrycja E. Jernas, Simon T. Belt
Nordic Seas Polynyas And Their Role In Preconditioning Marine Productivity During The Last Glacial Maximum., Jochen Knies, Denizcan Köseoğlu, Leif Rise, Nicole Baeten, Valérie K. Bellec, Reidulv Bøe, Martin Klug, Giuliana Panieri, Patrycja E. Jernas, Simon T. Belt
School of Geography, Earth and Environmental Sciences
Arctic and Antarctic polynyas are crucial sites for deep-water formation, which helps sustain global ocean circulation. During glacial times, the occurrence of polynyas proximal to expansive ice sheets in both hemispheres has been proposed to explain limited ocean ventilation and a habitat requirement for marine and higher-trophic terrestrial fauna. Nonetheless, their existence remains equivocal, not least due to the hitherto paucity of sufficiently characteristic proxy data. Here we demonstrate polynya formation in front of the NW Eurasian ice sheets during the Last Glacial Maximum (LGM), which resulted from katabatic winds blowing seaward of the ice shelves and upwelling of warm, …
Mapping A Hidden Terrane Boundary In The Mantle Lithosphere With Lamprophyres, Ah Dijkstra, C Hatch
Mapping A Hidden Terrane Boundary In The Mantle Lithosphere With Lamprophyres, Ah Dijkstra, C Hatch
School of Geography, Earth and Environmental Sciences
Lamprophyres represent hydrous alkaline mantle melts that are a unique source of information about the composition of continental lithosphere. Throughout southwest Britain, post-Variscan lamprophyres are (ultra)potassic with strong incompatible element enrichments. Here we show that they form two distinct groups in terms of their Sr and Nd isotopic compositions, occurring on either side of a postulated, hitherto unrecognized terrane boundary. Lamprophyres emplaced north of the boundary fall on the mantle array with eNd -1 to +1.6. Those south of the boundary are enriched in radiogenic Sr, have initial eNd values of -0.3 to -3.5, and are isotopically indistinguishable from similar-aged …
Determining The Dynamics Of Coarse Bedload Transport Using Passive Indirect Monitoring: Time-Dependent Variability At Event To Inter-Annual Scales, Pw Downs, Pj Soar
Determining The Dynamics Of Coarse Bedload Transport Using Passive Indirect Monitoring: Time-Dependent Variability At Event To Inter-Annual Scales, Pw Downs, Pj Soar
School of Geography, Earth and Environmental Sciences
© The Authors, published by EDP Sciences, 2018. The dynamics of coarse bedload transport in rivers is governed by multiple hierarchical factors including catchment-scale controls on sediment production, annually variable hydroclimatic driving of segment-scale sediment supply, and reach-scale factors related to the interaction of hydraulic forces with channel morphology. Exploring hydroclimatic drivers can beneficially utilise passive sensors to record coarse bedload transport over extended time periods and in previously unattainable resolution. For the River Avon (Devon, UK), five-minute coarse bedload frequency data collected using seismic impact plates inherently records the instantaneous variability of bedload transport intensity, patterns of event-scale hysteresis …
A Deconvolutional Bayesian Mixing Model Approach For River Basin Sediment Source Apportionment, William H. Blake, Pascal Boeckx, Brian C. Stock, Hugh G. Smith, Samuel Bodé, Hari R. Upadhayay, Leticia Gaspar, Rupert Goddard, Amy T. Lennard, Ivan Lizaga, David A. Lobb, Philip N. Owens, Ellen L. Petticrew, Zou Zou A. Kuzyk, Bayu D. Gari, Linus Munishi, Kelvin Mtei, Amsalu Nebiyu, Lionel Mabit, Ana Navas, Brice X. Semmens
A Deconvolutional Bayesian Mixing Model Approach For River Basin Sediment Source Apportionment, William H. Blake, Pascal Boeckx, Brian C. Stock, Hugh G. Smith, Samuel Bodé, Hari R. Upadhayay, Leticia Gaspar, Rupert Goddard, Amy T. Lennard, Ivan Lizaga, David A. Lobb, Philip N. Owens, Ellen L. Petticrew, Zou Zou A. Kuzyk, Bayu D. Gari, Linus Munishi, Kelvin Mtei, Amsalu Nebiyu, Lionel Mabit, Ana Navas, Brice X. Semmens
School of Geography, Earth and Environmental Sciences
Increasing complexity in human-environment interactions at multiple watershed scales presents major challenges to sediment source apportionment data acquisition and analysis. Herein, we present a step-change in the application of Bayesian mixing models: Deconvolutional-MixSIAR (D-MIXSIAR) to underpin sustainable management of soil and sediment. This new mixing model approach allows users to directly account for the 'structural hierarchy' of a river basin in terms of sub-watershed distribution. It works by deconvoluting apportionment data derived for multiple nodes along the stream-river network where sources are stratified by sub-watershed. Source and mixture samples were collected from two watersheds that represented (i) a longitudinal mixed …
Hydraulic Retention Time Affects Bacterial Community Structure In An As-Rich Acid Mine Drainage (Amd) Biotreatment Process., L Fernandez-Rojo, C Casiot, V Tardy, E Laroche, Et Al
Hydraulic Retention Time Affects Bacterial Community Structure In An As-Rich Acid Mine Drainage (Amd) Biotreatment Process., L Fernandez-Rojo, C Casiot, V Tardy, E Laroche, Et Al
School of Geography, Earth and Environmental Sciences
Arsenic removal consecutive to biological iron oxidation and precipitation is an effective process for treating As-rich acid mine drainage (AMD). We studied the effect of hydraulic retention time (HRT)-from 74 to 456 min-in a bench-scale bioreactor exploiting such process. The treatment efficiency was monitored during 19 days, and the final mineralogy and bacterial communities of the biogenic precipitates were characterized by X-ray absorption spectroscopy and high-throughput 16S rRNA gene sequencing. The percentage of Fe(II) oxidation (10-47%) and As removal (19-37%) increased with increasing HRT. Arsenic was trapped in the biogenic precipitates as As(III)-bearing schwertmannite and amorphous ferric arsenate, with a …
Anatomy, Age And Origin Of An Intramontane Top Basin Surface (Sorbas Basin, Betic Cordillera, Se Spain), Martin Stokes, Anne E. Mather, R Angel, Samantha H. Kearsey, Shaun Lewin
Anatomy, Age And Origin Of An Intramontane Top Basin Surface (Sorbas Basin, Betic Cordillera, Se Spain), Martin Stokes, Anne E. Mather, R Angel, Samantha H. Kearsey, Shaun Lewin
School of Geography, Earth and Environmental Sciences
No abstract provided.
Automated Mapping Of Relict Patterned Ground: An Approach To Evaluate Morphologically Subdued Landforms Using Unmanned-Aerialvehicle And Structure-From-Motion Technologies, A. E. Mather, R. M. Fyfe, C. C. Clason, M. Stokes, S. Mills, T. T. Barrows
Automated Mapping Of Relict Patterned Ground: An Approach To Evaluate Morphologically Subdued Landforms Using Unmanned-Aerialvehicle And Structure-From-Motion Technologies, A. E. Mather, R. M. Fyfe, C. C. Clason, M. Stokes, S. Mills, T. T. Barrows
School of Geography, Earth and Environmental Sciences
No abstract provided.
Mechanisms Of Dissolved And Labile Particulate Iron Supply To Shelf Waters And Phytoplankton Blooms Off South Georgia, Southern Ocean, Christian Schlosser, Katrin Schmidt, Alfred Aquilina, William B. Homoky, Maxi Castrillejo, Rachel A. Mills, Matthew D. Patey, Sophie Fielding, Angus Atkinson, Eric P. Achterberg
Mechanisms Of Dissolved And Labile Particulate Iron Supply To Shelf Waters And Phytoplankton Blooms Off South Georgia, Southern Ocean, Christian Schlosser, Katrin Schmidt, Alfred Aquilina, William B. Homoky, Maxi Castrillejo, Rachel A. Mills, Matthew D. Patey, Sophie Fielding, Angus Atkinson, Eric P. Achterberg
School of Geography, Earth and Environmental Sciences
Abstract. The island of South Georgia is situated in the iron (Fe)-depleted Antarctic Circumpolar Current of the Southern Ocean. Iron emanating from its shelf system fuels large phytoplankton blooms downstream of the island, but the actual supply mechanisms are unclear. To address this, we present an inventory of Fe, manganese (Mn), and aluminium (Al) in shelf sediments, pore waters, and the water column in the vicinity of South Georgia, alongside data on zooplankton-mediated Fe cycling processes, and provide estimates of the relative dissolved Fe (DFe) fluxes from these sources. Seafloor sediments, modified by authigenic Fe precipitation, were the main particulate …
The Geotraces Intermediate Data Product 2017, Reiner Schlitzer, Robert F. Anderson, Elena Masferrer Dodas, Maeve Lohan, Walter Geibert, Alessandro Tagliabue, Andrew Bowie, Catherine Jeandel, Maria T. Maldonado, William M. Landing, Donna Cockwell, Cyril Abadie, Wafa Abouchami, Eric P. Achterberg, Alison Agather, Ana Aguliar-Islas, Aken Hm Van, Morten Andersen, Corey Archer, Maureen Auro, Baar Hj De, Oliver Baars, Alex R. Baker, Karel Bakker, Chandranath Basak, Mark Baskaran, Nicholas R. Bates, Dorothea Bauch, Beek P Van, Melanie K. Behrens
The Geotraces Intermediate Data Product 2017, Reiner Schlitzer, Robert F. Anderson, Elena Masferrer Dodas, Maeve Lohan, Walter Geibert, Alessandro Tagliabue, Andrew Bowie, Catherine Jeandel, Maria T. Maldonado, William M. Landing, Donna Cockwell, Cyril Abadie, Wafa Abouchami, Eric P. Achterberg, Alison Agather, Ana Aguliar-Islas, Aken Hm Van, Morten Andersen, Corey Archer, Maureen Auro, Baar Hj De, Oliver Baars, Alex R. Baker, Karel Bakker, Chandranath Basak, Mark Baskaran, Nicholas R. Bates, Dorothea Bauch, Beek P Van, Melanie K. Behrens
School of Geography, Earth and Environmental Sciences
No abstract provided.
Black Plastics: Linear And Circular Economies, Hazardous Additives And Marine Pollution., Andrew Turner
Black Plastics: Linear And Circular Economies, Hazardous Additives And Marine Pollution., Andrew Turner
School of Geography, Earth and Environmental Sciences
Black products constitute about 15% of the domestic plastic waste stream, of which the majority is single-use packaging and trays for food. This material is not, however, readily recycled owing to the low sensitivity of black pigments to near infrared radiation used in conventional plastic sorting facilities. Accordingly, there is mounting evidence that the demand for black plastics in consumer products is partly met by sourcing material from the plastic housings of end-of-life waste electronic and electrical equipment (WEEE). Inefficiently sorted WEEE plastic has the potential to introduce restricted and hazardous substances into the recyclate, including brominated flame retardants (BFRs), …
Paired Dissolved And Particulate Phase Cu Isotope Distributions In The South Atlantic, Susan H. Little, Corey Archer, Angela Milne, Christian Schlosser, Eric P. Achterberg, Maeve C. Lohan, Derek Vance
Paired Dissolved And Particulate Phase Cu Isotope Distributions In The South Atlantic, Susan H. Little, Corey Archer, Angela Milne, Christian Schlosser, Eric P. Achterberg, Maeve C. Lohan, Derek Vance
School of Geography, Earth and Environmental Sciences
© 2018 The Authors Copper (Cu) is both an essential micronutrient and toxic to photosynthesizing microorganisms at low concentrations. Its dissolved vertical distribution in the oceans is unusual, being neither a nutrient-type nor scavenged-type element. This distribution is attributed to biological uptake in the surface ocean with remineralisation at depth, combined with strong organic complexation by dissolved ligands, scavenging onto particles, and benthic sedimentary input. We present coupled dissolved and particulate phase Cu isotope data along the UK-GEOTRACES South Atlantic section, alongside higher resolution dissolved and particulate phase Cu concentration measurements. Our dissolved phase isotope data contribute to an emerging …
Slope Stability Models For Rainfall-Induced Lahars During Long-Lasting Eruptions, V Baumann, C Bonadonna, S Cuomo, M Moscariello, I Manzella
Slope Stability Models For Rainfall-Induced Lahars During Long-Lasting Eruptions, V Baumann, C Bonadonna, S Cuomo, M Moscariello, I Manzella
School of Geography, Earth and Environmental Sciences
In this study we analyse the spatial distribution of potential lahar sources during long-lasting eruptions using two slope stability models (SHALSTAB and TRIGRS). The analysis is based on observed deposit grain-size and thickness, rainfall data and slope angle of the lahar events, in the area surrounding the Cordón Caulle volcano, Chile, that occurred during the 2011 eruption. The main phase of the eruption (4–7 June) was characterized by eruptive plumes from 7 to 11 km high which dispersed most of the tephra eastward toward Argentina, with a total estimated volume of about 1 km3. Tephra-fallout blanketed the region from ESE …
Measurement Of Methylamines In Seawater Using Solid Phase Microextraction And Gas Chromatography, Mark F. Fitzsimons, Charlotte H.L. Cree, Ruth Airs, Stephen D. Archer
Measurement Of Methylamines In Seawater Using Solid Phase Microextraction And Gas Chromatography, Mark F. Fitzsimons, Charlotte H.L. Cree, Ruth Airs, Stephen D. Archer
School of Geography, Earth and Environmental Sciences
The methylamines form part of the marine organic nitrogen pool. Although they are ubiquitous in marine systems, little is known about their distribution, production and fate in the marine environment. Analytical methods have been developed for their analysis in marine waters, but these have employed custom-made apparatus, limiting data to a few studies. Here, we report a method developed for the determination of methylamines in seawater which combines headspace solid phase micro-extraction (SPME) and gas chromatography with selective nitrogen detection. Gaseous methylamines were pre-concentrated from water samples (approximately 1 L) at elevated temperature, onto a polydimethylsiloxane/divinylbenzene SPME fibre. The analytes …
Dynamics Of Sediment Flux To A Bathyal Continental Margin Section Through The Paleocene–Eocene Thermal Maximum, Jones T Dunkley, Hayley R. Manners, Murray Hoggett, Turner S Kirtland, Thomas Westerhold, Melanie J. Leng, Richard D. Pancost, Andy Ridgwell, Laia Alegret, Rob Duller, Stephen T. Grimes
Dynamics Of Sediment Flux To A Bathyal Continental Margin Section Through The Paleocene–Eocene Thermal Maximum, Jones T Dunkley, Hayley R. Manners, Murray Hoggett, Turner S Kirtland, Thomas Westerhold, Melanie J. Leng, Richard D. Pancost, Andy Ridgwell, Laia Alegret, Rob Duller, Stephen T. Grimes
School of Geography, Earth and Environmental Sciences
No abstract provided.
Tunable Silver-Functionalized Porous Frameworks For Antibacterial Applications, Mark A. Isaacs, Brunella Barbero, Lee J. Durndell, Anthony C. Hilton, Luca Olivi, Christopher M.A. Parlett, Karen Wilson, Adam F. Lee
Tunable Silver-Functionalized Porous Frameworks For Antibacterial Applications, Mark A. Isaacs, Brunella Barbero, Lee J. Durndell, Anthony C. Hilton, Luca Olivi, Christopher M.A. Parlett, Karen Wilson, Adam F. Lee
School of Geography, Earth and Environmental Sciences
No abstract provided.
Joint Determination Of Improved Variety Adoption, Productivity And Efficiency Of Pulse Production In Bangladesh: A Sample-Selection Stochastic Frontier Approach, S Rahman, Ma Matin, Mk Hasan
Joint Determination Of Improved Variety Adoption, Productivity And Efficiency Of Pulse Production In Bangladesh: A Sample-Selection Stochastic Frontier Approach, S Rahman, Ma Matin, Mk Hasan
School of Geography, Earth and Environmental Sciences
Pulses are an important source of protein and have recently gained international prominence. This paper jointly identifies the determinants of improved variety adoption, productivity and efficiency of 2700 pulse producers from 10 pulse-growing districts of Bangladesh using a Sample-selection Stochastic Production Frontier model. Result revealed that the decision to adopt improved pulse technology is significantly influenced by yield, farming experience, education and extension contact while subsistence pressure discourages adoption. Land, fertilizer, mechanical power, pesticides and labour are the significant determinants of improved pulse productivity. Productivity is significantly lower for improved varieties of lentil, blackgram and chickpea as compared to mungbean …
Synchronization Of The Astronomical Time Scales In The Early Toarcian: A Link Between Anoxia, Carbon-Cycle Perturbation, Mass Extinction And Volcanism, Fatima Zahra Ait-Itto, Mathieu Martinez, Gregory D. Price, Addi A Ait
Synchronization Of The Astronomical Time Scales In The Early Toarcian: A Link Between Anoxia, Carbon-Cycle Perturbation, Mass Extinction And Volcanism, Fatima Zahra Ait-Itto, Mathieu Martinez, Gregory D. Price, Addi A Ait
School of Geography, Earth and Environmental Sciences
No abstract provided.
Archaeal And Bacterial Glycerol Dialkyl Glycerol Tetraether (Gdgt) Lipids In Environmental Samples By High Temperature-Gas Chromatography With Flame Ionisation And Time-Of-Flight Mass Spectrometry Detection, Sk Lengger, P Sutton, S Rowland, Sj Hurley, Et Al
Archaeal And Bacterial Glycerol Dialkyl Glycerol Tetraether (Gdgt) Lipids In Environmental Samples By High Temperature-Gas Chromatography With Flame Ionisation And Time-Of-Flight Mass Spectrometry Detection, Sk Lengger, P Sutton, S Rowland, Sj Hurley, Et Al
School of Geography, Earth and Environmental Sciences
Archaeal isoprenoidal glycerol dibiphytanyl glycerol tetraether lipids (iGDGTs) and their non-isoprenoidal branched bacterial analogues (brGDGTs) have widespread applications in biogeochemistry and paleothermometry. Analysis of GDGTs usually involves separation using high performance liquid chromatography, typically coupled via atmospheric pressure chemical ionisation to mass spectrometric detection in selected ion-monitoring mode (HPLC–APCI-MS). However, reliable determination of ratios and, in particular, quantification by this technique, can be challenging due to differences in ionisation efficiencies of the various compounds. Quantification of GDGTs also relies on external calibration of the relative response to an internal standard with authenticated GDGTs, which are often not readily accessible. Here, …
A New Terrestrial Palaeoenvironmental Record From The Bering Land Bridge And Context For Human Dispersal, Mj Wooller, É Saulnier-Talbot, Ba Potter, S Belmecheri, Et Al
A New Terrestrial Palaeoenvironmental Record From The Bering Land Bridge And Context For Human Dispersal, Mj Wooller, É Saulnier-Talbot, Ba Potter, S Belmecheri, Et Al
School of Geography, Earth and Environmental Sciences
© 2018 The Authors. Palaeoenvironmental records from the now-submerged Bering Land Bridge (BLB) covering the Last Glacial Maximum (LGM) to the present are needed to document changing environments and connections with the dispersal of humans into North America. Moreover, terrestrially based records of environmental changes are needed in close proximity to the re-establishment of circulation between Pacific and Atlantic Oceans following the end of the last glaciation to test palaeo-climate models for the high latitudes. We present the first terrestrial temperature and hydrologic reconstructions from the LGM to the present from the BLB’s south-central margin. We find that the timing …
Twitter: An Emerging Source For Geographical Study, F Fearnley, Rm Fyfe
Twitter: An Emerging Source For Geographical Study, F Fearnley, Rm Fyfe
School of Geography, Earth and Environmental Sciences
In 2004, the term ‘Web 2.0’ was coined to describe the new way in which users were consuming the Internet (Kaplan and Haenlein, 2010). It was on this new platform that the evolution of social media took place and consequently, the production of user generated content on a scale not previously seen (Kaplan and Haenlein, 2010). Twitter is among the array of social media sites and is currently the fastest growing and most popular microblogging site in the world (Atefeh and Khreich, 2015).
Editorial: Geoscience Communication - Building Bridges, Not Walls, Sam Illingworth, Iain Stewart, Jonathan Tennant, Elverfeldt K Von
Editorial: Geoscience Communication - Building Bridges, Not Walls, Sam Illingworth, Iain Stewart, Jonathan Tennant, Elverfeldt K Von
School of Geography, Earth and Environmental Sciences
No abstract provided.
Structural & Stratigraphic Evolution Of The Rio Del Rey Basin (Cameroon) - Field Development & New Exploration Potential, M. Watkinson, M. Enfield, C. Tucker
Structural & Stratigraphic Evolution Of The Rio Del Rey Basin (Cameroon) - Field Development & New Exploration Potential, M. Watkinson, M. Enfield, C. Tucker
School of Geography, Earth and Environmental Sciences
No abstract provided.
Belonging, Pausing, Feeling: A Framework Of ‘Mobile Dwelling’ For Uk University Students That Live At Home, Mark Holton, Kirsty Finn
Belonging, Pausing, Feeling: A Framework Of ‘Mobile Dwelling’ For Uk University Students That Live At Home, Mark Holton, Kirsty Finn
School of Geography, Earth and Environmental Sciences
Notions of place and dwelling have become increasingly dynamic of late. No longer is place considered the sedentary equivalent to mobility, instead the spaces at which place and mobility intersect have produced exciting new ways of thinking about liminoid and mobile places, and how one might dwell in and through these intersections. In this paper we develop a framework of mobile dwelling to better understand student mobilities within UK higher education (HE), a sector that is framed by a set of binary dualisms – mobile/immobile, home/away, local/non-local. This dualistic thinking about im/mobility reflects the legacy of the ‘boarding school’ model …
Plant Controls On Late Quaternary Whole Ecosystem Structure And Function, E Jeffers, Nj Whitehouse, A Lister, G Plunkett, Et Al
Plant Controls On Late Quaternary Whole Ecosystem Structure And Function, E Jeffers, Nj Whitehouse, A Lister, G Plunkett, Et Al
School of Geography, Earth and Environmental Sciences
Plants and animals influence biomass production and nutrient cycling in terrestrial ecosystems; however their relative importance remains unclear. We assessed the extent to which megaherbivore species controlled plant community composition and nutrient cycling, relative to other factors during and after the Late Quaternary extinction event in Britain and Ireland, when two-thirds of the region’s mega-herbivore species went extinct. Warmer temperatures, plant-soil and plantplant interactions, and reduced burning contributed to the expansion of woody plants and declining nitrogen availability in our five study ecosystems. Shrub biomass in particular was consistently one of the strongest predictors of ecosystem change, equaling or exceeding …
Global-Scale Comparisons Of Human Land Use: Developing Shared Terminology For Land-Use Practices Of Significance For Global Change., Kd Morrison, E Hammer, L Popova, Et Al
Global-Scale Comparisons Of Human Land Use: Developing Shared Terminology For Land-Use Practices Of Significance For Global Change., Kd Morrison, E Hammer, L Popova, Et Al
School of Geography, Earth and Environmental Sciences
Although archaeological data are needed to understand the impacts of past human land use on the Earth system, synthesis is hampered by a lack of consistent categories. We develop hierarchical and scalable land-use classifications for use across the globe. Human land-use practices have been highly variable over the course of the Holocene, a diversity evident in the differentiated effects of human activity on land cover. Historically, agriculture was one of the most significant forms of land use, but even mobile hunter-gatherers transformed land cover through landscape-scale burning (Bliege Bird 2008). Livestock-keeping, plowing, irrigation, and the production of metal, ceramics, and …
Changes To Polychlorinated Biphenyl (Pcb) Signatures And Enantiomer Fractions Across Different Tissue Types In Guillemots, D Megson, Ta Brown, G O'Sullivan, M Robson, Et Al
Changes To Polychlorinated Biphenyl (Pcb) Signatures And Enantiomer Fractions Across Different Tissue Types In Guillemots, D Megson, Ta Brown, G O'Sullivan, M Robson, Et Al
School of Geography, Earth and Environmental Sciences
Two Guillemot carcases were dissected, each providing 12 discrete tissue samples and 3 samples of partially digested food. One hundred and five PCBs from the 209 PCBs determined by GCxGC-ToFMS were detected. The relative proportions of individual PCBs did not vary greatly within tissue types, although the PCB profile from undigested food could be distinguished. Enantiomer fractions (EFs) were determined for CB-95, CB-136 and CB-149 by GC-HRqToFMS. EFs in the partially digested food were near racemic, with high levels of enrichment for E1 CB-95 in the kidneys and liver (EF of 0.80 and 0.84 respectively). This provides some of the …
Dunes On Pluto, Matt W. Telfer, J. R. Parteli, Jani Radebaugh, Ross A. Beyer, Tanguy Bertrand, François Forget, Francis Nimmo, Will M. Grundy, Jeffrey M. Moore, Sa Stern, John Spencer, Tod R. Lauer, Alissa M. Earle, Richard P. Binzel, Hal A. Weaver, Cathy B. Olkin, Leslie A. Young, Kimberly Ennico, Kirby Runyon
Dunes On Pluto, Matt W. Telfer, J. R. Parteli, Jani Radebaugh, Ross A. Beyer, Tanguy Bertrand, François Forget, Francis Nimmo, Will M. Grundy, Jeffrey M. Moore, Sa Stern, John Spencer, Tod R. Lauer, Alissa M. Earle, Richard P. Binzel, Hal A. Weaver, Cathy B. Olkin, Leslie A. Young, Kimberly Ennico, Kirby Runyon
School of Geography, Earth and Environmental Sciences
No abstract provided.
Which Dem Is Best For Analysing Fluvial Landscape Development In Mountainous Terrains?, Sarah J. Boulton, Martin Stokes
Which Dem Is Best For Analysing Fluvial Landscape Development In Mountainous Terrains?, Sarah J. Boulton, Martin Stokes
School of Geography, Earth and Environmental Sciences
No abstract provided.