Prof Mariecia Fraser

PhD

Prof Mariecia Fraser

Professor in Upland Agroecosystems

IBERS

Contact Details

Head, Pwllpeiran Upland Research Centre

Member, Natural England Scientific Advisory Committee (2018-present)

Member, Hybu Cig Cymru Research and Knowledge Exchange Advisory Committee (2018-present). 

Council member, British Grassland Society (2016-2020)

Editor, Animal: an international journal of bioscience

I have a background in animal science and grazing ecology and specialise in developing and testing management strategies for upland systems. My research interests include: species and breed differences in diet selection and ingestive behaviour, conservation grazing, nutrient supply from forages, greenhouse gas emissions from grazing animals, and the bio-energy potential of semi-natural grasslands.  I have worked with a range of animal species (sheep, cattle, goats, ponies, deer, South American camelids) and pasture types (cultivated, improved permanent pasture and semi-natural grass and heath communities), as well as fresh and ensiled alternative forages (high WSC grasses, forage legumes, brassicas, pulses and bi-crops), to deliver a range of products (meat, fibre, habitats and biorenewables).  

  • Agri Systems

Evaluating the Quantitative Accuracy and Application of DNA Metabarcoding for Dietary Reconstruction in Ruminants. / Vallin, Hannah; Fraser, Mariecia; Pakeman, Robin J. et al.
In: Ecology and Evolution, Vol. 16, No. 1, e72878, 14.01.2026.

Research output: Contribution to journalArticlepeer-review

Comparative Analysis of Pasture Composition: DNA Metabarcoding Versus Quadrat-Based Botanical Surveys in Experimental Grassland Plots. / Vallin, Hannah; Hipperson, Helen; Titera, Jan et al.
In: Ecology and Evolution, Vol. 15, No. 4, e71195, 30.04.2025.

Research output: Contribution to journalArticlepeer-review

Comparative intake, digestibility and enteric methane emissions by growing lambs and goat kids fed a medium digestibility grass nuts diet. / Quail, Megan; Davies, Iolo; Moorby, Jon et al.
In: Animal, Vol. 19, No. 5, 101489, 31.05.2025.

Research output: Contribution to journalArticlepeer-review

Could Molinia caerulea be an alternative forage feed for horses? / Hiir, R. L.; Fraser, M. D.; Nash, D. M.
In: Grass and Forage Science, Vol. 80, No. 4, e70020, 31.12.2025.

Research output: Contribution to journalReview Articlepeer-review

Do ewe remember? Comparative foraging behaviour of sheep and alternative livestock species in a spatial memory task. / Quail, Megan; Fraser, Mariecia.
In: Applied Animal Behaviour Science, Vol. 285, 106580, 30.04.2025.

Research output: Contribution to journalArticlepeer-review

More publications on the Research Portal