Ysgol Gwyddorau Amgylcheddol a Naturiol
- Cyhoeddwyd
Laboratory mating trials indicate incipient speciation by sexual selection among populations of the cichlid fish Pseudotropheus zebra from Lake Malawi.
Knight, M. E. & Turner, G. F., 7 Ebr 2004, Yn: Proceedings of The Royal Society B - Biological Sciences. 271, 1540, t. 675-680Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Soil microbiomes show consistent and predictable responses to extreme events
Knight, C. G., Nicolitch, O., Griffiths, R. I., Goodall, T., Jones, B., Weser, C., Langridge, H., Davison, J., Dellavalle, A., Eisenhauer, N., Gongalsky, K. B., Hector, A., Jardine, E., Kardol, P., Maestre, F. T., Schädler, M., Semchenko, M., Stevens, C., Tsiafouli, M. Α., Vilhelmsson, O., Wanek, W. & de Vries, F. T., 19 Rhag 2024, Yn: Nature. 636, 8043, t. 690-696 7 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A reliable DNA barcode reference library for the identification of the North European shelf fish fauna
Knebelsberger, T., Landi, M., Neumann, H., Sell, A. F., Campbell, P. D., Laakmann, S., Raupach, M. J., Carvalho, G. R. & Costa, F. O., 12 Maw 2014, Yn: Molecular Ecology Resources. 14, 5, t. 1060-1071Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Mitogenomic evidence of close relationships between New Zealand's extinct giant raptors and small-sized Australian sister-taxa
Knapp, M., Thomas, J. E., Haile, J., Prost, S., Ho, S. Y. W., Dussex, N., Cameron-Christie, S., Kardailsky, O., Barnett, R., Bunce, M., Gilbert, M. T. P. & Scofield, R. P., 1 Mai 2019, Yn: Molecular Phylogenetics and Evolution. 134, t. 122-128Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
First DNA sequences from Asian cave bear fossils reveal deep divergences and complex phylogeographic patterns
Knapp, M., Rohland, N., Weinstock, J., Baryshnikov, G., Sher, A., Nagel, D., Rabeder, G., Pinhasi, R., Schmidt, H. A. & Hofreiter, M., 1 Maw 2009, Yn: Molecular Ecology. 18, 6, t. 1225-1238Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Ancient Human DNA: Phylogenetic Applications
Knapp, M. & Hofreiter, M., 15 Mai 2014, Yn: Encyclopedia of Life Sciences (ELS).Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Complete mitochondrial DNA genome sequences from the first New Zealanders
Knapp, M., Horsburgh, K. A., Prost, S., Stanton, J. A., Buckley, H. R., Walter, R. K. & Matisoo-Smith, E. A., 6 Tach 2012, Yn: PNAS. 109, 45, t. 18350-18354Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Species Radiation of Carabid Beetles (Broscini: Mecodema) in New Zealand
Knapp, M., Goldberg, J. K., Emberson, R. M., Townsend, I. & Trewick, S. A., 23 Ion 2014, Yn: PLoS ONE. 9, 1Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Using Local Agroecological Knowledge in Climate Change Adaptation: A Study of Tree-Based Options in Northern Morocco
Kmoch, L., Pagella, T., Palm, M. & Sinclair, F., Hyd 2018, Yn: Sustainability. 10, 10, 17 t., 3719.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Preparation of titania mesoporous materials using a surfactant-mediated sol-gel method
Kluson, P., Kacer, P., Cajthaml, T. & Kalaji, M., 1 Ion 2001, Yn: Journal of Materials Chemistry. 11, 2, t. 644-651Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Titania thin films and supported nanostructured membranes prepared by the surfactant assisted sol-gel method
Kluson, P., Kacer, P., Cajthaml, T. & Kalaji, M., 1 Medi 2003, Yn: Chemical and Biochemical Engineering Quarterly. 17, 3, t. 183-190Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Are novel ecosystems the only novelty of rewilding?
Klop-Toker, K., Clulow, S., Shuttleworth, C. & Hayward, M., 1 Tach 2020, Yn: Restoration Ecology. 28, t. 1318-1320Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
A transitional fossil mite (Astigmata: Levantoglyphidae fam. n.) from the early Cretaceous suggests gradual evolution of phoresy-related metamorphosis
Klimov, P. B., Vorontsov, D. D., Azar, D., Sidorchuk, E. A., Braig, H. R., Khaustov, A. A. & Tolstikov, A. V., 23 Gorff 2021, Yn: Scientific Reports. 11, 1, 15113.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Logging roads in tropical forests: Synthesis of literature written in French and English highlights environmental impact reduction through improved engineering
Kleinschroth, F., Gourlet-Fleury, S., Gond, V., Sist, P. & Healey, J. R., 6 Rhag 2016, Yn: Bois et forêts des tropiques. 328, 2, t. 13-26Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Corrigendum
Kleinschroth, F., Healey, J., Sist, P., Mortier, F. & Gourlet-Fleury, S., 17 Medi 2016, Yn: Journal of Applied Ecology. 53, 6, t. 1890 1 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Impacts of logging roads on tropical forests
Kleinschroth, F. & Healey, J., Medi 2017, Yn: Biotropica. 49, 5, t. 620-635Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Effects of logging on roadless space in intact forest landscapes of the Congo Basin
Kleinschroth, F., Healey, J., Gourlet-Fleury, S., Mortier, F. & Stoica, R. S., Ebr 2017, Yn: Conservation Biology. 31, 2, t. 469-480Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
How persistent are the impacts of logging roads on Central African forest vegetation?
Kleinschroth, F., Healey, J. R., Sist, P., Mortier, F. & Gourlet-Fleury, S., 1 Awst 2016, Yn: Journal of Applied Ecology. 53, 4, t. 1127-1137Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Sparing forests in Central Africa: re-use old logging roads to avoid creating new ones
Kleinschroth, F., Healey, J. R. & Gourlet-Fleury, S., 2 Chwef 2016, Yn: Frontiers in Ecology and the Environment. 14, 1, t. 9-10Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Implementing agricultural phosphorus science and management to combat eutrophication
Kleinman, P. J., Sharpley, A. N., Withers, P. J., Bergstrom, L., Johnson, L. T. & Doody, D. G., 15 Chwef 2015, Yn: AMBIO. 44, 2, t. 297-310Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The mosaic genome structure of the Wolbachia wRi strain infecting Drosophila simulans.
Klasson, L., Westberg, J., Sapountzis, P., Naslund, K., Lutnaes, Y., Darby, A. C., Veneti, Z., Chen, L., Braig, H. R., Garrett, R., Bourtzis, K. & Andersson, S. G., 7 Ebr 2009, Yn: Proceedings of the National Academy of Sciences of the USA. 106, 14, t. 5725-5730Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Sensory mechanisms of long-distance navigation in birds: a recent advance in the context of previous studies
Kishkinev, D., Rhag 2015, Yn: Journal of Ornithology. 156, t. S145-S161Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Navigation by extrapolation of geomagnetic cues in a migratory songbird
Kishkinev, D., Packmor, F., Thomas, Z., Hans, W., Mouritsen, H., Chernetsov, N. & Holland, R., 12 Ebr 2021, Yn: Current Biology. 31, 7, t. 1563-1569Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study
Kishkinev, D., Heyers, D., Woodworth, B. K., Mitchell, G. W., Hobson, K. A. & Norris, D. R., 23 Tach 2016, Yn: Scientific Reports. 6, 37326 .Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Anosmic migrating songbirds demonstrate a compensatory response following long-distance translocation: a radio-tracking study
Kishkinev, D., Anashina, A., Ishchenko, I. & Holland, R. A., Ion 2020, Yn: Journal of Ornithology. 161, 1, t. 47-57Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Compass orientation
Kishkinev, D., Vonk, J. (Golygydd) & Shackelford, T. (Golygydd), 8 Chwef 2019, Encyclopedia of Animal Cognition and Behavior. Springer NatureAllbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cofnod mewn Gwyddoniadur/Geiriadur
- Cyhoeddwyd
Genome sequences of the human body louse and its primary endosymbiont provide insights into the permanent parasitic lifestyle.
Kirkness, E. F., Hass, B. J., Sun, W., Braig, H. R., Perotti, M. A., Clark, J. M., Lee, S. H., Robertson, H. M., Kennedy, R. C., Elhaik, E., Gerlach, D., Kriventseva, E. V., Elsik, C. G., Graur, D., Hill, C. A., Veenstra, J. A., Walenz, B., Tubio, J. M., Ribeiro, J. M., Rozas, J., Johnston, J. S., Reese, J. T., Popadic, A., Tojo, M., Raoult, D., Reed, D. L., Tomoyasu, Y., Krause, E., Mittapalli, O., Margam, V. M., Li, H. M., Meyer, J. M., Johnson, R. M., Romero-Severson, J., VanZee, J. P., Alvarez-Ponce, D., Vieira, F. G., Aguade, M., Guirao-Rico, S., Anzola, J. M., Yoon, K. S., Strycharz, J. P., Unger, M. F., Christley, S., Lobo, N. F., Seufferheld, M. J., Wang, N., Dasch, G. A., Struchiner, C. J., Madey, G., Hannick, L. I., Bidwell, S., Joardar, V., Caler, E., Shao, R., Barker, S. C., Cameron, S., Bruggner, R. V., Regier, A., Johnson, J., Viswanathan, L., Utterback, T. R., Sutton, G. G., Lawson, D., Waterhouse, R. M., Venter, J. C., Strausberg, R. L., Berenbaum, M. R., Collins, F. H., Zdobnov, E. M. & Pittendrigh, B. R., 6 Gorff 2010, Yn: Proceedings of the National Academy of Sciences of the USA. 107, 27, t. 12168-12173Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Ancient and modern stickleback genomes reveal the demographic constraints on adaptation
Kirch, M., Romundset, A., Gilbert, M. T. P., Jones, F. C. & Foote, A. D., 10 Mai 2021, Yn: Current Biology. 31, 9, t. 2027-2036Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Challenges to implementing greenhouse gas mitigation measures in livestock agriculture: A conceptual framework for policymakers
Kipling, R. P., Taft, H. E., Chadwick, D. R., Styles, D. & Moorby, J., Chwef 2019, Yn: Environmental Science and Policy. 92, t. 107-115Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Implementation solutions for greenhouse gas mitigation measures in livestock agriculture: A framework for coherent strategy
Kipling, R. P., Taft, H. E., Chadwick, D. R., Styles, D. & Moorby, J., Tach 2019, Yn: Environmental Science and Policy. 101, t. 232-244Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Identification of the remains of King Richard III
King, T. E., Fortes, G. G., Balaresque, P., Thomas, M. G., Balding, D., Delser, P. M., Neumann, R., Parson, W., Knapp, M., Walsh, S., Tonasso, L., Holt, J., Kayser, M., Appleby, J., Forster, P., Ekserdjian, D., Hofreiter, M. & Schurer, K., 2 Rhag 2014, Yn: Nature Communications. 5Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Exploiting a dual-fluorescence process in Fluorene-Dibenzothiophene-S, S-dioxide co-polymers to give efficient single polymer LEDs with with broadened emission.
King, S. M., Perepichka, I. I., Perepichka, I. F., Dias, F. B., Bryce, M. R. & Monkman, A. P., 24 Chwef 2009, Yn: Advanced Functional Materials. 19, 4, t. 586-591Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Biologically inspired herding of animal groups by robots
King, A. J., Portugal, S. J., Strombom, D., Mann, R. P., Carrillo, J. A., Kalise, D., Croon, G. D., Barnett, H., Scerri, P., Gross, R., Chadwick, D. & Papadopoulou, M., 1 Chwef 2023, Yn: Methods in Ecology and Evolution. 14, 2, t. 478-486 9 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Sulfidogenesis in low pH (3.8-4.2) media by a mixed population of acidophilic bacteria
Kimura, S., Hallberg, K. B. & Johnson, B., 1 Maw 2006, Yn: Biodegradation. 17, 2, t. 159-167Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Composition of biofilm communities in acidic mine waters as revealed by combined cultivation and biomolecular approaches.
Kimura, S., Coupland, K., Hallberg, K. B., Johnson, D. B., Tsezos, M. (Golygydd), Hatzikioseyian, A. (Golygydd) & Remoudaki, E. (Golygydd), 1 Ion 2004, t. 1057-1065.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Biodiversity of microbial populations in macroscopic “acid streamer” growths at an abandoned pyrite mine, elucidated using a combined cultivation-based and cultivation-independent approaches.
Kimura, S., Hallberg, K. B., Johnson, D. B., Harrison, S. T. (Golygydd), Rawlings, D. E. (Golygydd) & Petersen, J. (Golygydd), 1 Ion 2005, t. 687-696.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Biodiversity and geochemistry of an extremely acidic, low-temperature subterranean environment sustained by chemolithotrophy.
Kimura, S., Bryan, C. G., Hallberg, K. B. & Johnson, D. B., 1 Awst 2011, Yn: Environmental Microbiology. 13, 8, t. 2092-2104Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Changing thermal sensitivity of bacterial communities and soil enzymes in a bog peat in spring, summer and autumn
Kim, S.-Y., Zhou, X., Freeman, C. & Kang, H., 1 Mai 2022, Yn: Applied Soil Ecology. 173, 104382.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Elevated CO2 and high salinity enhance the abundance of sulfate reducers in a salt marsh ecosystem
Kim, S.-Y., Freeman, C., Lukac, M., Lee, S.-H., Kim, S. D. & Kang, H., Maw 2020, Yn: Applied Soil Ecology. 147, 103386.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Functional and structural responses of bacterial and methanogen communities to 3-year warming incubation in different depths of peat mire
Kim, S. Y., Freeman, C., Fenner, N. & Kang, H., 1 Meh 2012, Yn: Applied Soil Ecology. 57, t. 23-30Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Comparative analysis of soil microbial communities and their responses to the short-term drought in bog, fen, and riparian wetlands
Kim, S. Y., Lee, S. H., Freeman, C., Fenner, N. & Kang, H., 1 Tach 2008, Yn: Soil Biology and Biochemistry. 40, 11, t. 2874-2880Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Water table fluctuation in peatlands facilitates fungal proliferation, impedes Sphagnum growth and accelerates decomposition
Kim, J., Rochefort, L., Hugron, S., Alqulaiti, Z., Dunn, C., Pouliot, R., Jones, T., Freeman, C. & Kang, H., 22 Ebr 2021, Yn: Frontiers Earth Science. 8, 579329.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Characterization of a chitinolytic enzyme from Serratia sp KCK isolated from kimchi juice.
Kim, H. S., Timmis, K. N. & Golyshin, P. N., 1 Gorff 2007, Yn: Applied Microbiology and Biotechnology. 75, 6, t. 1275-1283Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Highly contiguous assemblies of 101 drosophilid genomes
Kim, B. Y., Wang, J., Miller, D. E., Barmina, O., Delaney, E. K., Thompson, A., Comeault, A., Peede, D., D'Agostino, E. R., Pelaez, J., Aguilar, J. M., Haji, D., Matsunaga, T., Armstrong, E., Zych, M., Ogawa, Y., Stamenković-Radak, M., Jelić, M., Savić Veselinović, M., Tanasković, M., Erić, P., Gao, J.-J., Katoh, T. K., Toda, M. J., Watabe, H., Watada, M., Davis, J. S., Moyle, L., Manoli, G., Bertolini, E., Koštál, V., Hawley, R. S., Takahashi, A., Jones, C. D., Price, D. K., Whiteman, N. K., Kopp, A., Matute, D. R. & Petrov, D. A., 19 Gorff 2021, Yn: Elife. 10, e66405.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Application of nanoscale secondary ion mass spectrometry to plant cell research
Kilburn, M. R., Clode, P. L., Cliff, J. B., Stockdale, E. A., Herrmann, A. M., Murphy, D. V. & Jones, D. L., 1 Meh 2010, Yn: Plant Signaling and Behavior. 5, 6, t. 760-2 3 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Structural insights into hydrolytic defluorination of difluoroacetate by microbial fluoroacetate dehalogenases
Khusnutdinova, A. N., Batyrova, K., Brown, G., Fedorchuck, T., Chai, Y. S., Skarina, T., Flick, R., Petit, A.-P., Savchenko, A., Stogios, P. & Yakunin, A., Hyd 2023, Yn: Febs Journal. 290, 20, t. 4966-4983 18 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Prenylated FMN: biosynthesis, purification, and Fdc1 activation
Khusnutdinova, A. N., Xiao, J., Wang, P.-H., Batyrova, K., Flick, R., Edwards, E. & Yakunin, A., 2019, New Approaches for Flavin Catalysis. Palfey, B. A. (gol.). Elsevier, Cyfrol 620. t. 469-488 (Methods in Enzymology).Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
- E-gyhoeddi cyn argraffu
Enzyme cascades for in vitro and in vivo FMN prenylation and UbiD (de)carboxylase activation under aerobic conditions
Khusnutdinova, A. N., Batyrova, K. A., Wang, P.-H., Flick, R., Edwards, E. A. & Yakunin, A. F., 16 Hyd 2024, (E-gyhoeddi cyn argraffu) Yn: Methods in Enzymology. 708, t. 151-173 23 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Moderately thermostable GH1 β-glucosidases from hyperacidophilic archaeon Cuniculiplasma divulgatum S5
Khusnutdinova, A., Hai, T., Devlekar, S., Distaso, M., Kublanov, I. V., Skarina, T., Stogios, P., Savchenko, A., Ferrer, M., Golyshina, O., Yakunin, A. & Golyshin, P., Medi 2024, Yn: Fems Microbiology Ecology. 100, 9, fiae114.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Reaction of microorganisms to the digestive fluid of earthworms.
Khomyakov, N. V., Kharin, S. A., Nechitailo, T. Y., Golyshin, P. N., Kurakov, A. V., Byzov, B. A. & Zvyagintsev, D. G., 1 Ion 2007, Yn: Microbiology. 76, 1, t. 45-54Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid