Published online by Cambridge University Press: 27 February 2018
The grazing ecology of hill and upland swards is discussed in terms of (a) the influence of sward characteristics (species composition; plant maturity and morphology; canopy structure) on the ingestive behaviour, diet selection and herbage intake of sheep and cattle, (b) the reciprocal influence of grazing activity upon the species balance of natural and sown plant communities and (c) the importance of plant responses in limiting the impact of variations in grazing managements upon the net rate of herbage production from sown swards. Emphasis is given to the importance of objective criteria of plant morphology and sward canopy structure both in understanding sward and animal responses to management manipulation and in applying the results of grazing studies in farming practice.