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Semi-Quantitative Reconstruction Of Early To Late Holocene Spring And Summer Sea Ice Conditions In The Northern Barents Sea, Sarah M.P. Berben, Katrine Husum, Alba Navarro-Rodriguez, Simon T. Belt, Steffen Aagaard-Sørensen Jan 2017

Semi-Quantitative Reconstruction Of Early To Late Holocene Spring And Summer Sea Ice Conditions In The Northern Barents Sea, Sarah M.P. Berben, Katrine Husum, Alba Navarro-Rodriguez, Simon T. Belt, Steffen Aagaard-Sørensen

School of Geography, Earth and Environmental Sciences

No abstract provided.


Coupled Changes Between The H-Print Biomarker And Delta N-15 Indicates A Variable Sea Ice Carbon Contribution To The Diet Of Cumberland Sound Beluga Whales, T. A. Brown, E. Chrystal, S. H. Ferguson, D. J. Yurkowski, C. Watt, N. E. Hussey, T. C. Kelley, S. T. Belt Jan 2017

Coupled Changes Between The H-Print Biomarker And Delta N-15 Indicates A Variable Sea Ice Carbon Contribution To The Diet Of Cumberland Sound Beluga Whales, T. A. Brown, E. Chrystal, S. H. Ferguson, D. J. Yurkowski, C. Watt, N. E. Hussey, T. C. Kelley, S. T. Belt

School of Geography, Earth and Environmental Sciences

No abstract provided.


An Analysis Of Variable Dissolution Rates Of Sacrificial Zinc Anodes: A Case Study Of The Hamble Estuary, Uk, Aldous B. Rees, Anthony Gallagher, Sean Comber, Laurence A. Wright Jan 2017

An Analysis Of Variable Dissolution Rates Of Sacrificial Zinc Anodes: A Case Study Of The Hamble Estuary, Uk, Aldous B. Rees, Anthony Gallagher, Sean Comber, Laurence A. Wright

School of Geography, Earth and Environmental Sciences

No abstract provided.


Resolving Discrepancies Between Field And Modelled Relative Sea-Level Data: Lessons From Western Ireland, Robin Edwards, W. Roland Gehrels, Anthony Brooks, Ralph Fyfe, Katie Pullen, Joseph Kuchar, Kieran Craven Jan 2017

Resolving Discrepancies Between Field And Modelled Relative Sea-Level Data: Lessons From Western Ireland, Robin Edwards, W. Roland Gehrels, Anthony Brooks, Ralph Fyfe, Katie Pullen, Joseph Kuchar, Kieran Craven

School of Geography, Earth and Environmental Sciences

No abstract provided.


Holocene Cyclic Records Of Ice-Rafted Debris And Sea Ice Variations On The East Greenland And Northwest Iceland Margins, D. A. Darby, J. T. Andrews, S. T. Belt, A. E. Jennings, P. Cabedo-Sanz Jan 2017

Holocene Cyclic Records Of Ice-Rafted Debris And Sea Ice Variations On The East Greenland And Northwest Iceland Margins, D. A. Darby, J. T. Andrews, S. T. Belt, A. E. Jennings, P. Cabedo-Sanz

School of Geography, Earth and Environmental Sciences

No abstract provided.


Tropical Forest Light Regimes In A Human-Modified Landscape, Sophie Fauset, Manuel U. Gloor, Marcos P.M. Aidar, Helber C. Freitas, Nikolaos M. Fyllas, Mauro A. Marabesi, Andre L.C. Rochelle, Alexander Shenkin, Simone A. Vieira, Carlos A. Joly Jan 2017

Tropical Forest Light Regimes In A Human-Modified Landscape, Sophie Fauset, Manuel U. Gloor, Marcos P.M. Aidar, Helber C. Freitas, Nikolaos M. Fyllas, Mauro A. Marabesi, Andre L.C. Rochelle, Alexander Shenkin, Simone A. Vieira, Carlos A. Joly

School of Geography, Earth and Environmental Sciences

No abstract provided.


“Hot Spots” Of N And C Impact Nitric Oxide, Nitrous Oxide And Nitrogen Gas Emissions From A Uk Grassland Soil, Gp Matthews, N Loick, E Dixon, D Abalos, A Vallejo, K Mcgeough, C Watson, E Baggs, L Cardenas Jan 2017

“Hot Spots” Of N And C Impact Nitric Oxide, Nitrous Oxide And Nitrogen Gas Emissions From A Uk Grassland Soil, Gp Matthews, N Loick, E Dixon, D Abalos, A Vallejo, K Mcgeough, C Watson, E Baggs, L Cardenas

School of Geography, Earth and Environmental Sciences

Agricultural soils are a major source of nitric- (NO) and nitrous oxide (N2O), which are produced and consumed by biotic and abiotic soil processes. The dominant sources of NO and N2O are microbial nitrification and denitrification, and emissions of NO and N2O generally increase after fertiliser application. The present study investigated the impact of N-source distribution on emissions of NO and N2O from soil and the significance of denitrification, rather than nitrification, as a source of NO emissions. To eliminate spatial variability and changing environmental factors which impact processes and results, the experiment was conducted under highly controlled conditions. A …


Novel Use Of Field-Portable-Xrf For The Direct Analysis Of Trace Elements In Marine Macroalgae., Annie Bull, Murray T. Brown, Andrew Turner Jan 2017

Novel Use Of Field-Portable-Xrf For The Direct Analysis Of Trace Elements In Marine Macroalgae., Annie Bull, Murray T. Brown, Andrew Turner

School of Geography, Earth and Environmental Sciences

Samples of dried marine macroalgae (Fucus serratus, Palmaria palmata and Ulva lactuca) have been analysed for trace elements by a novel, non-destructive approach involving a Niton field-portable-X-ray fluorescence (FP-XRF) spectrometer configured in a low density plastics mode with thickness correction. Detection limits for a 200-s counting time ranged from <5 μg g(-1) for As and Pb in F. serratus and As in P. palmata to several tens of μg g(-1) for Cd, Sb and Sn in all species tested. Arsenic, Cu, Pb and Zn were detected by the XRF in samples collected from a protected beach (n = 18) and in samples therefrom that had been exposed to additional aqueous elements in combination (n = 72) with concentrations returned (in μg g(-1)) ranging from 3.9 to 39.7 for As, 13.0 to 307 for Cu, 6.1 to 14.7 for Pb and 12.5 to 522 for Zn. Independent measurements of trace elements in the macroalgae by ICP-MS following nitric acid digestion revealed a direct and significant proportionality with concentrations returned by the XRF, with slopes of the XRF-ICP relationships (As = 1.0; Cu = 2.3; Pb = 2.4; Zn = 1.7) that can be used to calibrate the instrument for direct measurements. The approach shows potential for the in situ monitoring of macroalgae in coastal regions that is currently being investigated.


River Terraces And Alluvial Fans: The Case For An Integrated Quaternary Fluvial Archive, A. E. Mather, M. Stokes, E. Whitfield Jan 2017

River Terraces And Alluvial Fans: The Case For An Integrated Quaternary Fluvial Archive, A. E. Mather, M. Stokes, E. Whitfield

School of Geography, Earth and Environmental Sciences

No abstract provided.


Trace Elements In Fragments Of Fishing Net And Other Filamentous Plastic Litter From Two Beaches In Sw England, Andrew Turner Jan 2017

Trace Elements In Fragments Of Fishing Net And Other Filamentous Plastic Litter From Two Beaches In Sw England, Andrew Turner

School of Geography, Earth and Environmental Sciences

No abstract provided.


In Situ Determination Of Trace Elements In Fucus Spp. By Field-Portable-Xrf, Andrew Turner, Hiu Poon, Alex Taylor, Murray T. Brown Jan 2017

In Situ Determination Of Trace Elements In Fucus Spp. By Field-Portable-Xrf, Andrew Turner, Hiu Poon, Alex Taylor, Murray T. Brown

School of Geography, Earth and Environmental Sciences

No abstract provided.


Cadmium, Lead And Bromine In Beached Microplastics., Angelo Massos, Andrew Turner Jan 2017

Cadmium, Lead And Bromine In Beached Microplastics., Angelo Massos, Andrew Turner

School of Geography, Earth and Environmental Sciences

Samples of microplastic (n = 924) from two beaches in south west England have been analysed by field-portable-x-ray fluorescence (FP-XRF) spectrometry, configured in a low-density mode and with a small-spot facility, for the heavy metals, Cd and Pb, and the halogen, Br. Primary plastics in the form of pre-production pellets were the principal type of microplastic (>70%) on both beaches, with secondary, irregularly-shaped fragments representing the remainder of samples. Cadmium and Pb were detected in 6.9% and 7.5% of all microplastics, respectively, with concentrations of either metal that exceeded 10(3) μg g(-1) usually encountered in red and yellow pellets …


Geomorphology On Geologic Timescales: Evolution Of The Late Cenozoic Pacific Paleosurface In Northern Chile And Southern Peru, L. A. Evenstar, A. E. Mather, A. J. Hartley, F. M. Stuart, R. S.J. Sparks, F. J. Cooper Jan 2017

Geomorphology On Geologic Timescales: Evolution Of The Late Cenozoic Pacific Paleosurface In Northern Chile And Southern Peru, L. A. Evenstar, A. E. Mather, A. J. Hartley, F. M. Stuart, R. S.J. Sparks, F. J. Cooper

School of Geography, Earth and Environmental Sciences

The Atacama Desert on the western margin of the Central Andes is one of the driest and oldest deserts in the world. It is defined by a distinct and ancient surface, known as the Pacific Paleosurface (PPS) or Atacama Paleosurface. The age of this surface is determined as the time at which sediment deposition ceased, and the surface was effectively abandoned. Early studies suggested that this abandonment took place between 14 and 10 Ma, and was related to both the uplift of the Andes and the onset of hyperaridity in the region. Here we provide a regional re-examination of the …


Coulomb Stress Transfer And Fault Interaction Over Millennia On Non-Planar Active Normal Faults: The Mw 6.5–5.0 Seismic Sequence Of 2016–2017, Central Italy, Zoe K. Mildon, Gerald P. Roberts, Walker Jp Faure, Francesco Iezzi Jan 2017

Coulomb Stress Transfer And Fault Interaction Over Millennia On Non-Planar Active Normal Faults: The Mw 6.5–5.0 Seismic Sequence Of 2016–2017, Central Italy, Zoe K. Mildon, Gerald P. Roberts, Walker Jp Faure, Francesco Iezzi

School of Geography, Earth and Environmental Sciences

No abstract provided.


The Challenges And Opportunities Of Addressing Particle Size Effects In Sediment Source Fingerprinting: A Review, J. Patrick Laceby, Olivier Evrard, Hugh G. Smith, Will H. Blake, Jon M. Olley, Jean P.G. Minella, Philip N. Owens Jan 2017

The Challenges And Opportunities Of Addressing Particle Size Effects In Sediment Source Fingerprinting: A Review, J. Patrick Laceby, Olivier Evrard, Hugh G. Smith, Will H. Blake, Jon M. Olley, Jean P.G. Minella, Philip N. Owens

School of Geography, Earth and Environmental Sciences

No abstract provided.


Depth Related Brachiopod Faunas From The Lower Cambrian Forteau Formation Of Southern Labrador And Western Newfoundland, Canada, Cb Skovsted, I Knight, Ku Balthasar, Wd Boyce Jan 2017

Depth Related Brachiopod Faunas From The Lower Cambrian Forteau Formation Of Southern Labrador And Western Newfoundland, Canada, Cb Skovsted, I Knight, Ku Balthasar, Wd Boyce

School of Geography, Earth and Environmental Sciences

A diverse fauna of organophosphatic brachiopods is described from the late early Cambrian (Series 2, Stage 3-4) Forteau Formation of southern Labrador and western Newfoundland. The total fauna includes 11 species representing a wide selection of Cambrian brachiopod groups. Three distinct assemblages are recognized: Assemblages 1 and 2 are found in shallow water carbonates in association with archaeocyathans in southern Labrador and the western side of the Great Northern Peninsula of western Newfoundland. Assemblage 3 is found in a distal shelf setting of Gros Morne National Park. Assemblages 1 and 2 are found in stratigraphic continuity and define two brachiopod …


Fluvial Archives Of Nw African Climate And Tectonic Evolution, Atlas Mountains, Central Morocco, Jr Zondervan, M Stokes, Ae Mather, Sj Boulton Jan 2017

Fluvial Archives Of Nw African Climate And Tectonic Evolution, Atlas Mountains, Central Morocco, Jr Zondervan, M Stokes, Ae Mather, Sj Boulton

School of Geography, Earth and Environmental Sciences

The Atlas mountains in Morocco are a natural laboratory at the junction between the Atlantic Ocean (passive margin), the Mediterranean (subduction) and the African Craton. Here, interactions between the mantle and lithosphere, crustal compression and uplift have been recorded in river terraces, alluvial fans, drainage patterns, river long profiles, and in wedge-top & foreland sediments. Limited work on terraces in one of the catchments crossing the south Atlas thrust front has shown rates of incision are low and have been sustained since the Pleistocene. Dating of terraces using Optically Stimulated Luminescence, together with field sedimentology, links the formation of terraces …


Validation Of The Oecd Reproduction Test Guideline With The New Zealand Mudsnail Potamopyrgus Antipodarum Using Trenbolone And Prochloraz, C Geiß, K Ruppert, C Askem, C Barroso, D Faber, V Ducrot, H Holbech, Th Hutchinson, P Kajankari, Kl Kinnberg, L Lagadic, P Matthiessen, S Morris, M Neiman, O-P Penttinen, P Sanchez-Marin, M Teigeler, L Weltje, J Oehlmann Jan 2017

Validation Of The Oecd Reproduction Test Guideline With The New Zealand Mudsnail Potamopyrgus Antipodarum Using Trenbolone And Prochloraz, C Geiß, K Ruppert, C Askem, C Barroso, D Faber, V Ducrot, H Holbech, Th Hutchinson, P Kajankari, Kl Kinnberg, L Lagadic, P Matthiessen, S Morris, M Neiman, O-P Penttinen, P Sanchez-Marin, M Teigeler, L Weltje, J Oehlmann

School of Geography, Earth and Environmental Sciences

The Organisation for Economic Cooperation and Development (OECD) provides several standard test methods for the environmental hazard assessment of chemicals, mainly based on primary producers, arthropods, and fish. In April 2016, two new test guidelines with two mollusc species representing different reproductive strategies were approved by OECD member countries. One test guideline describes a 28-day reproduction test with the parthenogenetic New Zealand mudsnail Potamopyrgus antipodarum. The main endpoint of the test is reproduction, reflected by the embryo number in the brood pouch per female. The development of a new OECD test guideline involves several phases including inter-laboratory validation studies to …


Methodological Perspectives On The Application Of Compound-Specific Stable Isotope Fingerprinting For Sediment Source Apportionment, Hari R. Upadhayay, Samuel Bodé, Marco Griepentrog, Dries Huygens, Roshan M. Bajracharya, William H. Blake, Gerd Dercon, Lionel Mabit, Max Gibbs, Brice X. Semmens, Brian C. Stock, Wim Cornelis, Pascal Boeckx Jan 2017

Methodological Perspectives On The Application Of Compound-Specific Stable Isotope Fingerprinting For Sediment Source Apportionment, Hari R. Upadhayay, Samuel Bodé, Marco Griepentrog, Dries Huygens, Roshan M. Bajracharya, William H. Blake, Gerd Dercon, Lionel Mabit, Max Gibbs, Brice X. Semmens, Brian C. Stock, Wim Cornelis, Pascal Boeckx

School of Geography, Earth and Environmental Sciences

No abstract provided.


Normal Fault Growth And Linkage In The Gediz (Alasehir) Graben, Western Turkey, Revealed By Transient River Long-Profiles And Slope-Break Knickpoints, Emiko Kent, Sarah J. Boulton, Alexander C. Whittaker, Iain S. Stewart, Mc Alcicek Jan 2017

Normal Fault Growth And Linkage In The Gediz (Alasehir) Graben, Western Turkey, Revealed By Transient River Long-Profiles And Slope-Break Knickpoints, Emiko Kent, Sarah J. Boulton, Alexander C. Whittaker, Iain S. Stewart, Mc Alcicek

School of Geography, Earth and Environmental Sciences

No abstract provided.


Social Geology — Integrating Sustainability Concepts Into Earth Sciences, Iain S. Stewart, Joel C. Gill Jan 2017

Social Geology — Integrating Sustainability Concepts Into Earth Sciences, Iain S. Stewart, Joel C. Gill

School of Geography, Earth and Environmental Sciences

Most geologists would argue that geoscientific knowledge, experience, and guidance is critical for addressing many of society's most acute environmental challenges, yet few geologists are directly engaged in current discourses around sustainable development. That is surprising given that several attributes make modern geoscience well placed to make critical contributions to contemporary sustainability thinking. Here, we argue that if geoscientists are to make our know-how relevant to sustainability science, two aspects seem clear. Firstly, the geoscience community needs to substantially broaden its constituency, not only forging interdisciplinary links with other environmental disciplines but also drawing from the human and behavioral sciences. …


The Importance Of Geosites And Heritage Stones In Cities—A Review, P De Wever, F Baudin, D Pereira, Et Al Dec 2016

The Importance Of Geosites And Heritage Stones In Cities—A Review, P De Wever, F Baudin, D Pereira, Et Al

School of Geography, Earth and Environmental Sciences

Geology, as a scientific discipline, is often viewed as most applicable in high mountains or in deserts or coastal areas—or more generally in ‘natural areas’ where rock exposures are most conspicuous—and, therefore, not to be experienced by most visitors and tourists. In contrast, most geoscientists are convinced that geology can be practised on an everyday basis, as it is part of our daily life as a facet of the natural environment that humans have used for 100 s of thousands of years. Even in places where the natural world seems far from its original condition, one can still experience geology. …


Evaluating Models Of Coulomb Stress Transfer: Is Variable Fault Geometry Important?, Zoe K. Mildon, Shinji Toda, Walker Jp Faure, Gerald P. Roberts Dec 2016

Evaluating Models Of Coulomb Stress Transfer: Is Variable Fault Geometry Important?, Zoe K. Mildon, Shinji Toda, Walker Jp Faure, Gerald P. Roberts

School of Geography, Earth and Environmental Sciences

No abstract provided.


Bromine Soil/Sediment Enrichment In Tidal Salt Marshes As A Potential Indicator Of Climate Changes Driven By Solar Activity: New Insights From W Coast Portuguese Estuaries, J Moreno, F. Fatela, E. Leorri, F Moreno, M. C. Freitas, T. Valente, M. F. Araújo, J. J. Gómez-Navarro, L. Guise, W. H. Blake Dec 2016

Bromine Soil/Sediment Enrichment In Tidal Salt Marshes As A Potential Indicator Of Climate Changes Driven By Solar Activity: New Insights From W Coast Portuguese Estuaries, J Moreno, F. Fatela, E. Leorri, F Moreno, M. C. Freitas, T. Valente, M. F. Araújo, J. J. Gómez-Navarro, L. Guise, W. H. Blake

School of Geography, Earth and Environmental Sciences

No abstract provided.


Tapping The Archives: The Sterol Composition Of Marine Sponge Species, As Determined Non-Invasively From Museum Preserved Specimens, Reveals Biogeographical Features, Sk Lengger, J Fromont, K Grice Dec 2016

Tapping The Archives: The Sterol Composition Of Marine Sponge Species, As Determined Non-Invasively From Museum Preserved Specimens, Reveals Biogeographical Features, Sk Lengger, J Fromont, K Grice

School of Geography, Earth and Environmental Sciences

Over 8600 species are currently recorded in the phylum Porifera (sponges). They produce a large diversity of biochemical compounds including sterols, with more than 250 different sterols identified. Some of these sterols are of great interest, due to their use for fingerprinting in ecological and biomarker (molecular fossil) studies. As a large number of identified extant species from biodiversity surveys are housed in museum collections, preserved in ethanol, these present a potentially rich source of identified specimens for comparative lipid analyses. Here, we show that, in at least one species, sterol distributions obtained from the ethanol used to preserve specimens …


The Influence Of Online Problem-Based Learning On Teachers’ Professional Practice And Identity, S Wheeler, P Kelly, K Gale Dec 2016

The Influence Of Online Problem-Based Learning On Teachers’ Professional Practice And Identity, S Wheeler, P Kelly, K Gale

Plymouth Institute of Education

In this paper we describe the design of a managed learning environment called MTutor, which is used to teach an online Masters Module for teachers. In describing the design of MTutor pedagogic issues of problem-based learning, situated cognition and ill-structured problems are discussed. MTutor presents teachers with complex real-life teaching problems, which they are required to solve online through collaboration with other teachers. In order to explore the influence of this online learning experience on the identity and practice of teachers, we present the results from a small-scale study in which six students were interviewed about their online experiences. We …


Bioaccessibility Of U, Th And Pb In Solid Wastes And Soils From An Abandoned Uranium Mine, Michael Foulkes, Geoffrey Millward, Samuel Henderson, William Blake Dec 2016

Bioaccessibility Of U, Th And Pb In Solid Wastes And Soils From An Abandoned Uranium Mine, Michael Foulkes, Geoffrey Millward, Samuel Henderson, William Blake

School of Geography, Earth and Environmental Sciences

No abstract provided.


Controls On The Early Holocene Collapse Of The Bothnian Sea Ice Stream, Cc Clason, Sl Greenwood, N Selmes, Jm Lea, Et Al Dec 2016

Controls On The Early Holocene Collapse Of The Bothnian Sea Ice Stream, Cc Clason, Sl Greenwood, N Selmes, Jm Lea, Et Al

School of Geography, Earth and Environmental Sciences

New high‐resolution multibeam data in the Gulf of Bothnia reveal for the first time the subglacial environment of a Bothnian Sea Ice Stream. The geomorphological record suggests that increased meltwater production may have been important in driving rapid retreat of Bothnian Sea Ice during deglaciation. Here we apply a well‐established, one‐dimensional flow line model to simulate ice flow through the Gulf of Bothnia and investigate controls on retreat of the ice stream during the post‐Younger Dryas deglaciation of the Fennoscandian Ice Sheet. The relative influence of atmospheric and marine forcings are investigated, with the modeled ice stream exhibiting much greater …


Spatial Variations In Personal Insolvency Choices: The Role Of Stigma And Social Capital, Pr Bishop Dec 2016

Spatial Variations In Personal Insolvency Choices: The Role Of Stigma And Social Capital, Pr Bishop

Plymouth Business School

This article offers an explanation for the wide spatial variations in choice of insolvency route by personal debtors across local authorities in England and Wales. It is argued that formal bankruptcy has a more negative impact on social capital through stigma effects than the alternative of Individual Voluntary Arrangements. Consequently, spatial variations in choices are related to variations in social capital. The hypotheses derived from this approach are tested through the use of spatial econometric models utilising data from England and Wales. The results provide support for a positive link between variables related to social capital (age, mobility and home …


Research Challenges And Conservation Implications For Urban Cat Management In New Zealand, Kh Kikillus, Gk Chambers, Mj Farnworth, Km Hare Dec 2016

Research Challenges And Conservation Implications For Urban Cat Management In New Zealand, Kh Kikillus, Gk Chambers, Mj Farnworth, Km Hare

School of Biological and Marine Sciences

Over the past 20 years, conservation efforts in New Zealand have moved from being concentrated in rural and isolated island locations, where exotic mammalian predators are often controlled, to begin to bring native fauna back to major cities. However, human–wildlife conflicts arise when conservation occurs in close proximity to cities. These are particularly intense when companion animals are involved either as potential predators or prey of high-value conservation animals. Within New Zealand, this conflict is particularly fraught around domestic cats (Felis catus) in the urban environment. Cats in New Zealand are recognised as major introduced predators of native fauna, but …