1. 2023
2. Cyhoeddwyd

   Inequalities in noise will affect urban wildlife

   Nelson-Olivieri, J. R., Layden, T. J., Antunez, E., Khalighifar, A., Lasky, M., Laverty, T. M., Sanchez, K. A., Shannon, G., Starr, S., Verahrami, A. K. & Bombaci, S. P., 20 Tach 2023, Yn: Nature Ecology and Evolution.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

3. Cyhoeddwyd

   Land degradation neutrality: Testing the indicator in a temperate agricultural landscape

   Thomas, A., Bentley, L., Feeney, C., Lofts, S., Robb, C., Rowe, E. C., Thomson, A., Warren-Thomas, E. & Emmett, B., 15 Tach 2023, Yn: Journal of Environmental Management. 346, t. 118884

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

4. Cyhoeddwyd

   Long-term satellite observations show continuous increase of vegetation growth enhancement in urban environment

   Peng, X., Jiang, S., Liu, S., Valbuena, R., Smith, A., Zhan, Y., Shi, Y., Ning, Y., Feng, S., Gao, H. & Wang, Z., 10 Tach 2023, Yn: Science of the Total Environment. 898, 165515.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

5. Cyhoeddwyd

   Amazonian secondary forests are greatly reducing fragmentation and edge exposure in old-growth forests

   Smith, C., Barlow, J., Schwartz, N., Healey, J., Young, P. & Miranda, L., 9 Tach 2023, Yn: Environmental Research Letters. 18, 12, 124016.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

6. Cyhoeddwyd

   Horizontal viewsheds of large herbivores as a function of woodland structure

   Gresham, A., Healey, J., Eichhorn, M., Barton, O., Smith, A. & Shannon, G., 9 Tach 2023, Yn: Ecology and Evolution. 13, 11

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

7. Cyhoeddwyd

   A horizon scan of issues affecting UK forest management within 50 years

   Tew, E. R., Ambrose-Oji, B., Beatty, M., Buntgen, U., Butterworth, H., Clover, G., Cook, D., Dauksta, D., Day, W., Deakin, J., Field, A., Gardiner, B., Harrop, P., Healey, J., Heaton, R., Hemery, G., Hill, L., Hughes, O., Khaira-Creswell, P. K., Kirby, K., Leitch, A., MacKay, J., McIlhiney, R., Murphy, B., Newton, L., Norris, D., Nugee, R., Parker, J., Petrokofsky, G., Prosser, A., Quine, C., Randhawa, G., Reid, C., Richardson, M., Ridley-Ellis, D. J., Riley, R., Roberts, J. E., Schaible, R., Simpson, L. E., Spake, R., Tubby, I., Urquhart, J., Wallace-Stephens, F., Wilson, J. D. & Sutherland, W. J., 8 Tach 2023, Yn: Forestry.

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

8. Cyhoeddwyd

   100 years of anthropogenic impact causes changes in freshwater functional biodiversity

   Eastwood, N., Zhou, J., Derelle, R., Abdallah, M. A-E., Stubbings, W. A., Jia, Y., Crawford, S. E., Davidson, T. A., Colbourne, J. K., Creer, S., Bik, H., Hollert, H. & Orsini, L., 7 Tach 2023, Yn: Elife. 12

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

9. Cyhoeddwyd

   Activity Budget and Sociality of the Northern Lesser Galago, Galago senegalensis

   Grace Ellison, Jones, M. & Cain, B., 6 Tach 2023, Yn: International Journal of Primatology. t. 1-26

   Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

10. Cyhoeddwyd

    Assessing the effectiveness, practicality and cost effectiveness of mitigation measures to reduce greenhouse gas emissions from intensively cultivated peatlands

    Rhymes, J. M., Arnott, D., Chadwick, D. R., Evans, C. D. & Jones, D. L., 1 Tach 2023, Yn: Land Use Policy. 134, 106886.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

11. Cyhoeddwyd

    Development and validation of a duplex RT-qPCR assay for norovirus quantification in wastewater samples

    Alex-Sanders, N., Woodhall, N., Farkas, K., Scott, G., Jones, D. L. & Walker, D. I., 1 Tach 2023, Yn: Journal of Virological Methods. 321, 114804.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

12. Cyhoeddwyd

    Environmental DNA metabarcoding for fish diversity assessment in a macrotidal estuary: A comparison with established fish survey methods

    Gibson, T., Carvalho, G., Ellison, A., Gargiulo, E., Hatton-Ellis, T., Handley, L. L., Mariani, S., Collins, R. A., Sellers, G., Distaso, M., Zampieri, C. & Creer, S., 1 Tach 2023, Yn: Estuarine, Coastal and Shelf Science. 294, 108522.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

13. Cyhoeddwyd

    Evaluation of machine learning methods and multi-source remote sensing data combinations to construct forest above-ground biomass models

    Yan, X., Li, J., Smith, A., Yang, D., Ma, T., Su, Y. & Shao, J., 1 Tach 2023, Yn: International Journal of Digital Earth. 16, 2, t. 4471-4491 21 t., 4471-4491.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

14. Cyhoeddwyd

    Run-of-river hydropower in the UK and Ireland: The case for abstraction licences based on future flows

    Dallison, R. & Patil, S., 1 Tach 2023, Yn: Environmental Research: Infrastructure and Sustainability. 3, 4, 045005.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

15. E-gyhoeddi cyn argraffu

    Migratory bats are sensitive to magnetic inclination changes during the compass calibration period

    Schneider, W. T., Holland, R. A., Keišs, O. & Lindecke, O., Tach 2023, (E-gyhoeddi cyn argraffu) Yn: Biology letters. 19, 11, t. 20230181

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

16. Cyhoeddwyd

    Predicting the spatial expansion of an animal population with presence-only data

    Barton, O., Healey, J., Cordes, L., Davies, A. & Shannon, G., Tach 2023, Yn: Ecology and Evolution. 13, 11, t. e10778 e10778.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

17. Cyhoeddwyd

    One-pot chemo-enzymatic synthesis and one-step recovery of length-variable long-chain polyphosphates from microalgal biomass

    Lin, Y-H., Nishikawa, S., Jia, T. Z., Yeh, F-I., Khusnutdinova, A., Yakunin, A., Fujishima, K. & Wang, P-H., 27 Hyd 2023, Yn: Green Chemistry. 23

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

18. Cyhoeddwyd

    Circular wood use can accelerate global decarbonisation but requires cross-sectoral coordination

    Forster, E., Healey, J., Newman, G. & Styles, D., 25 Hyd 2023, Yn: Nature Communications. 14, 1, 6766.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

19. Cyhoeddwyd

    Drought-related mortality modifies mixing effects on light absorption and growth in mono-specific and mixed stands of Fagus sylvatica, Alnus glutinosa and Betula pendula.

    Plaga, B., Bauhus, J., Smith, A., Gonzalez Pereira, M. & Forrester, D., 23 Hyd 2023, Yn: Forestry. 97, 3, t. 401-413 13 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

20. Cyhoeddwyd

    High-resolution maps show that rubber causes substantial deforestation

    Wang, Y., Hollingsworth, P. M., Zhai, D., West, C., Green, J. M. H., Chen, H., Hurni, K., Su, Y., Warren-Thomas, E., Xu, J. & Ahrends, A., 18 Hyd 2023, Yn: Nature. 623

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

21. Cyhoeddwyd

    Ancient Egypt had far more venomous snakes than the country today, according to our new study of a scroll

    Winder, I. C. & Wüster, W., 16 Hyd 2023, The Conversation.

    Allbwn ymchwil: Cyfraniad at gyhoeddiad arbenigol › Erthygl

22. Cyhoeddwyd

    One hundred priority questions for the development of sustainable food systems in sub-Saharan Africa

    Devenish, A. J., Schmitter, P., Jellason, N. P., Esmail, N., Abdi, N. M., Barron, J., Chapman, A. S. A., Chausson, A. M., Chibesa, M., Reading, U., Dugan, E., Edwards, G. I., Egeru, A., Gebrehiwot, T., Griffiths, G. H., Haile, A., Hunga, H. G., Igbine, L., Jarju, O. M., Keya, F., Khalifa, M., Ledoux, W. A., Lejissa, L. T., Loupa, P., Lwanga, J., Mapedza, E. D., Marchant, R., McLoud, T., Mukuyu, P., Musah, L. M., Mwanza, M., Mwitwa, J., Neina, D., London, U., Njogo, S., Robinson, E. J. Z., Singini, W., Umar, B. B., Wesonga, F., Willcock, S., Yang, J. & Tobias, J. A., 7 Hyd 2023, Yn: Land. 39 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

23. E-gyhoeddi cyn argraffu

    What bit the Ancient Egyptians? Niche modelling to identify the snakes described in the Brooklyn medical papyrus

    McBride, E., Winder, I. C. & Wüster, W., 7 Hyd 2023, (E-gyhoeddi cyn argraffu) Yn: Environmental Archaeology.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

24. Cyhoeddwyd

    Cross-validation for geospatial data: Estimating generalization performance in geostatistical problems

    Wang, J., Hopkins, L., Hallman, T., Robinson, W. D. & Hutchinson, R., 4 Hyd 2023, Yn: Transactions on Machine Learning Research.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

25. Cyhoeddwyd

    Capturing red squirrels (Sciurus vulgaris) on camera: A cost-effective approach for monitoring relative abundance and habitat preference

    Shannon, G., Valle, S. & Shuttleworth, C., 3 Hyd 2023, Yn: Ecology and Evolution. 13, 10, e10536.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

26. Cyhoeddwyd

    Environmental and land use consequences of replacing milk and beef with plant-based alternatives

    Porto Costa, M., Saget, S., Zimmermann, B., Petig, E., Rees, R. M., Chadwick, D., Gibbons, J., Shrestha, S., Williams, M. & Styles, D., 1 Hyd 2023, Yn: Journal of Cleaner Production. 424, 138826.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

27. Cyhoeddwyd

    Photocatalytic fixation of NOx in soils

    Sánchez-Rodríguez, A. R., Gómez-Álvarez, E., Méndez, J. M., Skiba, U. M., Jones, D. L., Chadwick, D. R., Del Campillo, M. C., Fernandes, R. B., Kleffmann, J. & Barrón, V., 1 Hyd 2023, Yn: Chemosphere. 338, 139576.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

28. Cyhoeddwyd

    National scale mapping of supply and demand for recreational ecosystem services

    Hooftman, D., Ridding, L., Redhead, J. & Willcock, S., Hyd 2023, Yn: Ecological Indicators. 154, 20 t., 110779.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

29. 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

30. E-gyhoeddi cyn argraffu

    Voluntary thermal maximum of grassland vipers (Vipera spp.): environmental drivers and local adaptation

    Radovics, D., Sos, T., Mebert, K., Üveges, B., Budai, M., Rák, G., Szabolcs, M., Lengyel, S. & Mizsei, E., 30 Medi 2023, (E-gyhoeddi cyn argraffu) Yn: Zoological Journal of the Linnean Society.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

31. Cyhoeddwyd

    Synthesis and thermal studies of two phosphonium tetrahy-droxidohexaoxidopentaborate(1-) salts: single-crystal XRD characterization of [iPrPPh3][B5O6(OH)4].3.5H2O and [MePPh3][B5O6(OH)4].B(OH)3.0.5H2O

    Beckett, M., Horton, P., Hursthouse, M. B. & Timmis, J., 29 Medi 2023, Yn: Molecules. 28, 19, 12 t., 6867.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

32. Cyhoeddwyd

    Evidence for cryptic sex in parthenogenetic stick insects of the genus Timema

    Freitas, S., Parker, D. J., Labédan, M., Dumas, Z. & Schwander, T., 27 Medi 2023, Yn: Proceedings of the Royal Society B: Biological Sciences. 290, 2007, 11 t., 20230404.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

33. Cyhoeddwyd

    Museum DNA reveals a new, potentially extinct species of rinkhals (Serpentes: Elapidae: Hemachatus) from the Eastern Highlands of Zimbabwe

    Major, T., Renk, P., Reissig, J., Paijmans, J., Morris, E., Hofreiter, M., Barlow, A., Broadley, D. G. & Wüster, W., 27 Medi 2023, Yn: PLoS ONE. 18, 9, 19 t., e0291432.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

34. Cyhoeddwyd

    Enjoying inequality

    Wilson, J., 26 Medi 2023, Clickbait capitalism: Economies of Desire in the Twenty-First Century. Samman, A. & Gammon, E. (gol.). Manchester University Press

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid

35. E-gyhoeddi cyn argraffu

    Biological knowledge shortfalls impede conservation efforts in poorly studied taxa—A case study of Laboulbeniomycetes

    Haelewaters, D., Matthews, T. J., Wayman, J. P., Cazabonne, J., Heyman, F., Quandt, C. A. & Martin, T. E., 23 Medi 2023, (E-gyhoeddi cyn argraffu) Yn: Journal of Biogeography. 51, 1, t. 29-39 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

36. Cyhoeddwyd

    Impacts of metal mining on river systems: a global assessment

    Macklin, M. G., Thomas, C., Mudbhatkal, A., Brewer, P. A., Hudson-Edwards, K., Lewin, J., Scussolini, P., D. Eilander, D., Lechner, A., Owen, J., Bird, G., Kemp, D. & Mangalaa, K., 22 Medi 2023, Yn: Science. 381, 6664, t. 1345-1350

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

37. Cyhoeddwyd

    Nature positive must incorporate, not undermine, the mitigation hierarchy

    Maron, M., Quétier, F., Sarmiento, M., ten Kate, K., Evans, M. C., Bull, J. W., Jones, J. P. G., zu Ermgassen, S. O. S. E., Milner-Gulland, E. J., Brownlie, S., Treweek, J. & von Hase, A., 21 Medi 2023, Yn: Nature Ecology and Evolution.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

38. Cyhoeddwyd

    On the importance of types and the perils of “en passant” taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its implications, with the designation of a lectotype

    Wüster, W. & Tillack, F., 20 Medi 2023, Yn: Zootaxa. 5346, 4, t. 403-419

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

39. Cyhoeddwyd

    Increasing concentration of pure micro- and macro-LDPE and PP plastic negatively affect crop biomass, nutrient cycling, and microbial biomass

    Graf, M., Greenfield, L., Reay, M. K., Bargiela, R., Williams, G., Onyije, C., Lloyd, C. E. M., Bull, I. D., Evershed, R. P., Golyshin, P., Chadwick, D. & Jones, D. L., 15 Medi 2023, Yn: Journal of Hazardous Materials. 458, t. 131932

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

40. Cyhoeddwyd

    Neighbours matter and the weak succumb: Ash dieback infection is more severe in ash trees with fewer conspecific neighbours and lower prior growth rate

    Cracknell, D., Peterken, G., Pommerening, A., Lawrence, P. & Healey, J., 15 Medi 2023, Yn: Journal of Ecology. 111, 10, t. 2118-2133 16 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

41. 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

42. Cyhoeddwyd

    Downscaling Global Land-Use Scenario Data to the National Level: A Case Study for Belgium

    Rashidi, P., Patil, S., Schipper, A. M., Alkemade, R. & Rosa, I., 7 Medi 2023, Yn: Land.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

43. Cyhoeddwyd

    Place attachment and perception of climate change as a threat in rural and urban areas

    Tenbrink, T. & Willcock, S., 6 Medi 2023, Yn: PLoS ONE. 18, 9, e0290354.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

44. Cyhoeddwyd

    The Endangered Sardinian Grass Snake: Distribution Update, Bioclimatic Niche Modelling, Dorsal Pattern Characterisation, and Literature Review

    Di Nicola, M. R., Pozzi, A., Mezzadri, S., Faraone, F. P., Russo, G., C. M. Dorne, J. L. & Minuti, G., 4 Medi 2023, Yn: Life.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

45. Cyhoeddwyd

    Cooling waters: Phages to treat urinary tract infections-Phage Cartoon by Ellie Jameson

    Jameson, E., 1 Medi 2023, Yn: PHAGE (New Rochelle, N.Y.). 4, 3, t. 111

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl

46. Cyhoeddwyd

    Effect of fertilizer type on antibiotic resistance genes by reshaping the bacterial community and soil properties

    Wu, J., Guo, S., Li, K., Li, Z., Xu, P., Jones, D. L., Wang, J. & Zou, J., 1 Medi 2023, Yn: Chemosphere. 336, 139272.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

47. Cyhoeddwyd

    Rubber's inclusion in zero-deforestation legislation is necessary but not sufficient to reduce impacts on biodiversity

    Warren-Thomas, E., Ahrends, A., Wang, Y., Wang Mei Hua, M. & Jones, J. P. G., 1 Medi 2023, Yn: Conservation Letters. 16, 5, e12967.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

48. Cyhoeddwyd

    Seasonal variation is a bigger driver of soil faunal and microbial community composition than exposure to the neonicotinoid acetamiprid within Brassica napus production systems

    Potts, J., Brown, R., Jones, D. L. & Cross, P., 1 Medi 2023, Yn: Soil Biology and Biochemistry. 184, 109088.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

49. Cyhoeddwyd

    The fate of amino acid and peptide as affected by soil depth and fertilization regime in subtropical paddies

    Wang, H., Wang, J., Xiao, M., Ge, T., Gunina, A. & Jones, D. L., 1 Medi 2023, Yn: Science of the Total Environment. 889, 164245.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

50. Cyhoeddwyd

    A Machine Learning Integrated 5.8-GHz Continuous-Wave Radar for Honeybee Monitoring and Behavior Classification

    Aldabashi, N., Morton Williams, S., Eltokhy, A., Palmer, E., Cross, P. & Palego, C., Medi 2023, Yn: IEEE Transactions on Microwave Theory and Techniques. 71, 9, t. 4098-4108 11 t.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

51. Cyhoeddwyd

    Mapping to explore the challenges and opportunities for reconciling artisanal gem mining and biodiversity conservation

    Devenish, K., Goodenough, K., Jones, J. P. G., Rakoto Ratsimba, H. & Willcock, S., Medi 2023, Yn: Extractive Industries and Society. 15, 28 t., 101311.

    Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid