Ysgol Gwyddorau Amgylcheddol a Naturiol
- Cyhoeddwyd
Microbial Communities in Sediments in Acidic, Metal-Rich Mine Lakes: Results from a Study in South-West Spain
Falagan Rodriguez, C., Sánchez-España, F. J., Yusta, I. & Johnson, D. B., Tach 2015, Yn: Advanced Materials Research. 1130, t. 7-10Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The significance of pH in dictating the relative toxicities of chloride and copper to acidophilic bacteria
Falagan, C. & Johnson, D. B., Rhag 2018, Yn: Research in Microbiology. 169, 10, t. 552-557Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Acidicapsa ferrireducens sp nov., Acidicapsa acidiphila sp nov., and Granulicella acidiphila sp nov.: novel acidobacteria isolated from metal-rich acidic waters
Falagan, C., Foesel, B. & Johnson, B., Mai 2017, Yn: Extremophiles. 21, 3, t. 459-469Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Microbiological Communities in Two Acidic Mine Pit Lakes in the Iberian Pyrite Belt (IPB), Spain
Falagan, C., Sánchez-España, F. J. & Johnson, D. B., 1 Hyd 2013, Yn: Advanced Materials Research. 825, t. 19-22Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Acidithiobacillus ferriphilus sp. nov.: a facultatively anaerobic iron- and sulfur-metabolising extreme acidophile
Falagan, C. & Johnson, D. B., 1 Ion 2016, Yn: International Journal of Systematic and Evolutionary Microbiology. 66, 1, t. 206-211Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
New insights into the biogeochemistry of extremely acidic environments revealed by a combined cultivation-based and culture-independent study of two stratified pit lakes
Falagan, C., Sánchez-España, J. & Johnson, D. B., 1 Ion 2014, Yn: Fems Microbiology Ecology. 87, 1, t. 231-243Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Acidibacter ferrireducens gen. nov., sp. nov.: an acidophilic ferric iron-reducing gammaproteobacterium
Falagan, C. & Johnson, D. B., 13 Awst 2014, Yn: Extremophiles. 18, 6, t. 1067-1073Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Temperature affects predation of schistosome-competent snails by a novel invader, the marbled crayfish Procambarus virginalis
Faiad, S. M., Williams, M. A., Goodman, M., Sokolow, S., Olden, J. D., Mitchell, K., Andriantsoa, R., Jones, J. P. G., Andriamaro, L., Ravoniarimbinina, P., Rasamy, J., Ravelomanana, T., Ravelotafita, S., Ravo, R., Rabinowitz, P., De Leo, G. A. & Wood, C. L., 13 Medi 2023, Yn: PLoS ONE. 18, 9, t. e0290615 e0290615.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Using landscape history to predict biodiversity patterns in fragmented landscapes
Ewers, R. M., Didham, R. K., Pearse, W. D., Lefebvre, V., Rosa, I. M. D., Carreiras, J. M. B., Lucas, R. M. & Reuman, D. C., Hyd 2013, Yn: Ecology Letters. 16, 10, t. 1221-1233Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
PCR detection of adenovirus in grey squirrels on Anglesey
Everest, D. J., Grierson, S. S., Stidworthy, M. & Shuttleworth, C., 31 Hyd 2009, Yn: Veterinary Record. 165, t. 482Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Adenovirus-associated deaths in red squirrels on Anglesey
Everest, D. J., Shuttleworth, C. & Stidworthy, M. F., 31 Hyd 2008, Yn: The Veterinary record. 163, 14, t. 430Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Opportunistic viral surveillance confirms the ongoing disease threat grey squirrels pose to sympatric red squirrel populations in the UK
Everest, DJ., Green, C., Dastjerdi, A., Davies, H., Cripps, R., McKinney, C., Podgornik, G., Stinson, M., O'Hare, S., Bonnie, S., Mill, A., Van der wall, Z., Robinson, N., Trotter, S. & Shuttleworth, C., 20 Mai 2023, Yn: Veterinary Record. 192, 10, e2834.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Disease monitoring and surveillance: case studies in the applied conservation of fragmented red squirrel (Sciurus vulgaris) populations in England and Wales
Everest, D. J., Floyd, T., Holmes, P., Man, C., Dunnett, C., Locke, R., Savage, L., Sutcliffe, S., Sapsford, B., Shuttleworth, C. & Duff, P., 1 Rhag 2021, Yn: Mammalian Biology. 101, t. 1079-1088Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A systematic assessment of the impact of adenovirus infection on a captive re-introduction project for red squirrels (Sciurus vulgaris)
Everest, D. J., Shuttleworth, C., Grierson, S. S., Duff, J. P., Jackson, N., Litherland, P. & Kenward, R. E., 31 Awst 2012, Yn: Veterinary Record. 171, t. 176-184Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Confirmation of squirrelpox in Welsh red squirrel
Everest, D. J., Floyd, T., Donnnacie, B., Irvine, R. M., Holmes, J. P. & Shuttleworth, C., 30 Tach 2017, Yn: Veterinary Record. 181, t. 514-515Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl
- Cyhoeddwyd
Non-invasive genetic studies and virus epidemiology
Everest, D. J., Dastjerdi, A., Davies, H., Shuttleworth, C., Ogden, R., Butler, H. & Sapsford, B., 30 Maw 2022, Yn: Veterinary Record. 190, t. 204-205Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl
- Cyhoeddwyd
The impact of adenoviruses on red squirrel (Sciurus vulgaris) conservation – with notes on other enteric viruses of potential significance
Everest, D. J., Shuttleworth, C., Grierson, S. S., Dastjerdi, A., Stidworthy, M. F., Duff, J. P. & Sainsbury, A. W., 2015, Red squirrels: Ecology, Conservation & Management in Europe. Shuttleworth, C. M., Lurz, P. W. W. & Hayward, M. W. (gol.). European Squirrel Initiative, t. 129-146Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
- Cyhoeddwyd
Assessing a potential non-invasive method for viral diagnostic purposes in European squirrels
Everest, D. J., Tolhurst-Cherriman, D. A. R., Davies, H., Dastjerdi, A., Ashton, A., Blackett, T., Meredith, A. L., Milne, E., Mill, A. & Shuttleworth, C., 4 Meh 2019, Yn: Hystrix-Italian Journal of Mammalogy. 30, t. 44-50Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Adenovirus infection in red squirrels in areas free from grey squirrels
Everest, D. J., Butler, H., Simpson, V. R., Blackett, T. & Shuttleworth, C., 31 Awst 2013, Yn: The Veterinary record. 173, 8, t. 199-200Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl
- Cyhoeddwyd
Adenovirus detections in juvenile squirrels
Everest, D. J., Dastjerdi, A., Cowan, D., Gomm, M., Shuttleworth, C., McInnes, C. J., Deane, D., Coulter, L., Mill, A., Rushton, S. P., Jackson, N. L. & Litherland, P., 1 Hyd 2015, Yn: Veterinary Record. 177, t. 373-374Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl
- Cyhoeddwyd
Virus presence within Welsh red squirrels
Everest, D. J., Holmes, P. & Shuttleworth, C., 30 Mai 2017, Yn: The Veterinary record. 180, t. 520-521Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl
- Cyhoeddwyd
Adenovirus infection: An emerging factor in red squirrel conservation programmes
Everest, D. J., Shuttleworth, C., Stidworthy, M. F., Grierson, S. S., Duff, P. J. & Kenward, R. E., 1 Hyd 2014, Yn: Mammal Review. 44, 3-4, t. 225-233Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The implications of significant adenovirus infection in UK captive red squirrel (Sciurus vulgaris) collections: How histological screening can aid applied conservation management
Everest, D. J., Shuttleworth, C., Grierson, S. S., Dastjerdi, A., M.F., S., Duff, J. P., Higgins, R. J., Mill, A. C. & Chantrey, J., 1 Ion 2018, Yn: Mammalian Biology. 88, t. 123-129Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Testing the relative sensitivity of 102 ecological variables as indicators of woodland condition in the New Forest, UK
Evans, P. M., Newton, A. C., Cantarello, E., Sanderson, N., Jones, D. L., Barsoum, N., Cottrell, J. E., A'Hara, S. W. & Fuller, L., Rhag 2019, Yn: Ecological Indicators. 107, 105575.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Intramolecular Wittig reactions with esters utilising triphenylphosphine and dimethyl acetylenedicarboxylate
Evans, L. A., Griffiths, K. E., Guthmann, H. & Murphy, P. J., 7 Ion 2002, Yn: Tetrahedron Letters. 43, 2, t. 299-301Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Synthetic Route to 1,1′,2,2′-Tetraiodoferrocene That Avoids Isomerization and the Electrochemistry of Some Tetrahaloferrocenes
Evans, D. M., Hughes, D. D., Murphy, P. J., Horton, P. N., Coles, S. J., de Biani, F. F., Corsini, M. & Butler, I. R., 9 Awst 2021, Yn: Organometalics. 40, 15, t. 2496-2503 8 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A biomimetic approach to the cylindrospermopsin alkaloids
Evans, D. M. & Murphy, P. J., 21 Maw 2011, Yn: Chemical Communications. 47, 11, t. 3225-3226 2 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The Cylindrospermopsin Alkaloids
Evans, D. M. & Murphy, P. J., 2011, Yn: Alkaloids: Chemistry and Biology. 70, t. 1-77 77 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Final report on project SP1210: Lowland peatland systems in England and Wales – evaluating greenhouse gas fluxes and carbon balances
Evans, C., Morrison, R., Burden, A., Williamson, J., Baird, A., Brown, E., Callahan, N., Chapman, P., Cumming, A., Dean, H., Dixon, S., Dooling, G., Evans, J., Gauci, V., Grayson, R., Haddaway, N., He, Y., Heppell, K., Holden, J., Hughes, S., Kaduk, J., Jones, D. L., Matthews, R., Menichino, N., Misselbrook, T., Page, S., Pan, G., Peacock, M., Rayment, M., Ridley, L., Robinson, I., Rylett, D., Scowen, M., Stanley, K. & Worrall, F., 2016, Centre for Ecology & Hydrology .Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn › adolygiad gan gymheiriaid
- Cyhoeddwyd
Overriding water table control on managed peatland greenhouse gas emissions
Evans, C. D., Peacock, M., Baird, A. J., Artz, R. R. E., Burden, A., Callaghan, N., Chapman, P. J., Cooper, H. M., Coyle, M., Craig, E., Cumming, A., Dixon, S., Gauci, V., Grayson, R. P., Helfter, C., Heppell, C. M., Holden, J., Jones, D. L., Kaduk, J., Levy, P., Matthews, R., McNamara, N. P., Misselbrook, T., Oakley, S., Page, S. E., Rayment, M., Ridley, L., Stanley, K. M., Williamson, J. L., Worrall, F. & Morrison, R., 27 Mai 2021, Yn: Nature. 593, t. 548-552Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Climate change - Terrestrial export of organic carbon - Reply
Evans, C. D., Freeman, C., Monteith, D. T., Reynolds, B. & Fenner, N., 21 Chwef 2002, Yn: Nature. 415, 6874, t. 862Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Contrasting vulnerability of drained tropical and high-latitude peatlands to fluvial loss of stored carbon
Evans, C. D., Page, S. E., Jones, T., Moore, S., Gauci, V., Laiho, R., Hruska, J., Allot, T. E., Billet, M. F., Tipping, E., Freeman, C. & Garnett, M. H., 13 Tach 2014, Yn: Global Biogeochemical Cycles. 28, 11, t. 1215-1234Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
DOC export and carbon loss from UK upland soils: similarities and differences between peats and organo-mineral soils.
Evans, C., Freeman, C., Billett, M., Clark, J. M., Tobermann, H., Chapman, P., Cork, L. G., Reynolds, B. & Thomas, D. N., 1 Ion 2007.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Environmental DNA for Wildlife Biology and Biodiversity Monitoring
Evans, A. R., Bohmann, K., Evans, A., Gilbert, M. T., Carvalho, G. R., Creer, S., Knapp, M., Yu, D. W. & De Bruyn, M., 10 Mai 2014, Yn: Trends in Ecology and Evolution. 29, 6, t. 358-367Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Bacterial Adaptation to Venom in Snakes and Arachnida
Esmaeilishirazifard, E., Usher, L., Trim, C., Sangal, V., Tyson, G. F., Barlow, A., Redway, K. F., Taylor, J. D., Kremida-Vlachou, M., Davies, S., Loftus, T. D., Lock, M. M. G., Wright, K., Dalby, A., Snyder, L. A. S., Wüster, W., Trim, S. & Moschos, S. A., 29 Meh 2022, Yn: Microbiology Spectrum. 10, 3, 16 t., e0240821.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Phenoloxidase activity and organic carbon dynamics in historic Anthrosols in Scotland, UK
Esiana, B. O. I., Coates, C. J., Adderley, W. P., Berns, A. E. & Bol, R., 27 Hyd 2021, Yn: PLoS ONE. 16, 10, e0259205.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Sea-Ice Bacteria Halomonas sp. Strain 363 and Paracoccus sp. Strain 392 Produce Multiple Types of Poly-3-Hydroxyalkaonoic Acid (PHA) Storage Polymers at Low Temperature
Eronen-Rasimus, E., Hultman, J., Hai, T., Pessi, L. S., Wright, S., Laine, P., Viitamaki, S., Lyra, C., Thomas, D. N., Golyshin, P., Luhtanen, A. M., Kuosa, H. & Kaartokallio, H., 11 Awst 2021, Yn: Applied and Environmental Microbiology. 87, 17, e00929-21.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Infrared Spectroscopy of Fragments of Protonated Peptides: Direct Evidence for Macrocyclic Structures of b5 Ions
Erlekam, U., Bythell, B. J., Scuderi, D., Van Stipdonk, M., Paizs, B. & Maître, P., 28 Gorff 2009, Yn: Journal of the American Chemical Society. 131, 32, t. 11503-11508Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Maternal stress alters the phenotype of the mother, her eggs and her offspring in a wild-caught lizard
Ensminger, D. C., Langkilde, T., Owen, D. A. S., MacLeod, K. J. & Sheriff, M. J., 1 Tach 2018, Yn: Journal of Animal Ecology. 87, 6, t. 1685-1697Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A multispecies BCO2 beak color polymorphism in the Darwin’s finch radiation
Enbody, E., Sprehn, C. G., Abzhanov, A., Bi, H., Dobreva, M. P., Osborne, O., Rubin, C-J., Grant, P., Grant, B. R. & Andersson, L., 22 Hyd 2021, Yn: Current Biology. 31, 24, t. 5597-5604Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Spatial patterns and environmental constraints on ecosystem services at a catchment scale
Emmett, B., Cooper, D., Smart, S., Jackson, B., Thomas, A., Cosby, B., Evans, C., Glanville, H., McDonald, J., Malham, S., Marshall, M., Jarvis, S., Rajko-Nenow, P., Webb, G. P., Ward, S., Rowe, E., Jones, L., Vanbergen, E. J., Keith, A., Carter, H., Pereira, M. G., Hughes, S., Lebron, I., Wade, A. & Jones, D., 1 Rhag 2016, Yn: Science of the Total Environment. 572, t. 1586-1600Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Environment and Rural Affairs Monitoring & Modelling Programme (ERAMMP): ERAMMP Report 32: National Forest in Wales - Evidence Review: Annex 7, Integrated Assessment. Report to Welsh Government (Contract C210/2016/2017).
Emmett, B. A., Healey, J., Warren-Thomas, E. & Wong, J., 28 Awst 2020, Centre for Ecology & Hydrology . 14 t.Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn › adolygiad gan gymheiriaid
- Cyhoeddwyd
Integrated Analysis. Report 10a:Integrated Analysis. Report to Welsh Government (Contract C210/2016/2017).
Emmett, B. A., Alison, J., Braban, C., Dickie, I., Gunn, I. D. M., Healey, J., Jenkins, T., Jones, L., Keenleyside, C. B., Lewis-Reddy, E., Martineau, A. H., Newell-Price, J. P., Old, G. H., Pagella, T., Siriwardena, G. M., Williams, A. P. & Williams, J. R., 8 Gorff 2019, Centre for Ecology & Hydrology . 27 t. ( Environment and Rural Affairs Monitoring & Modelling Programme (ERAMMP): Sustainable Farming Scheme Evidence Review)Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn
- Cyhoeddwyd
Report 10b: Considerations for the new scheme. Report to Welsh Government (Contract C210/2016/2017).
Emmett, B. A., Alison, J., Braban, C., Dickie, I., Gunn, I. D. M., Healey, J., Jenkins, T., Jones, L., Keenleyside, C. B., Martineau, A. H., Newell-Price, P., Old, G. H., Pagella, T., Siriwardena, G. M., Williams, A. G., Williams, P. & Williams, J. R., 10 Gorff 2019, Centre for Ecology & Hydrology . 23 t. (Environment and Rural Affairs Monitoring & Modelling Programme (ERAMMP): Sustainable Farming Scheme Evidence Review. )Allbwn ymchwil: Llyfr/Adroddiad › Adroddiad Comisiwn
- Cyhoeddwyd
A novel biologically-based approach to evaluating soil phosphorus availability across complex landscapes
Emmett, B., DeLuca, T. H., Glanville, H. C., Harris, M., Emmett, B. A., Pingree, M. R., de Sosa, L. L., Cerda-Moreno, C. & Jones, D. L., 2 Meh 2015, Yn: Soil Biology and Biochemistry. 88, t. 110-119Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The more-than-economic dimensions of cooperation in food production
Emery, S., Wynne-Jones, S. & Forney, J., Gorff 2017, Yn: Journal of Rural Studies. 53, t. 229-238Allbwn ymchwil: Cyfraniad at gyfnodolyn › Golygyddiad
- Cyhoeddwyd
Taxonomic and geographic bias in 50 years of research on the behaviour and ecology of galagids
Ellison, G., Jones, M., Cain, B. & Bettridge, C., 15 Rhag 2021, Yn: PLoS ONE. 16, 12Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Comparative transcriptomics reveal conserved impacts of rearing density on immune response of two important aquaculture species
Ellison, A., Uren Webster, T. M., Rodriguez-Barreto, D., Garcia de Leaniz, C., Consuegra, S., Orozco-terWengel, P. & Cable, J., Medi 2020, Yn: Fish and Shellfish Immunology. 104, t. 192-201Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Temperature-mediated shifts in salamander transcriptomic responses to the amphibian-killing fungus
Ellison, A., Zamudio, K. R., Lips, K. R. & Muletz-Wolz, C., 31 Ion 2020, Yn: Molecular Ecology. 29, 2, t. 325-343 19 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Circadian dynamics of the teleost skin immune-microbiome interface
Ellison, A., Wilcockson, D. & Cable, J., 16 Tach 2021, Yn: Microbiome. 9, 1, 18 t., 222.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid