Search

All content is free for everyone to browse, read and share. You’ll find journal articles and non-peer reviewed grey literature. Type keywords into the search box or Use the filtering options below to browse the content.

Filter by...

Showing 8 results

Observer Variation in the Use of a Method of Assessing Current Herbivore Impacts in Woodland.

Published online: 09 Sep 2022

Published by: UK, NatureScot

Authors: Armstrong, H. M.

Content type: Reports

This study highlights the Woodland Herbivore Impact Assessment Method (WHIA) by comparing the results obtained by fifteen surveyors assessing the same...

Read more

Tests of different methods for measuring and estimating utilization rate of heather (Calluna vulgaris) by vertebrate herbivores.

Published online: 07 Nov 1992

Authors: Armstrong, H. M. & Macdonald, A. J.

Content type: Journal article

Journal title: Journal of Applied Ecology

In a field study at a hill sheep farm in the Tweedsmuir hills of SE Scotland the precision of 4 methods for measuring utilization rate of C. vulgaris ...

Read more

A model of the grazing of hill vegetation by sheep in the UK. I. The prediction of vegetation biomass.

Published online: 26 Jun 1997

Authors: Armstrong, H. M. & Gordon, I. J. & Grant, S. A. & Hutchings, N. J. & Milne, J. A. & Sibbald, A. R.

Content type: Journal article

Journal title: Journal of Applied Ecology

A computer model is described which predicts monthly growth, senescence, litterfall and standing biomass of ungrazed herbage in seven dwarf shrub-domi...

Read more

The identification of 100 ecological questions of high policy relevance in the UK.

Published online: 11 Oct 2006

Authors: Sutherland, W. J. & Armstrong-Brown, S. & Armsworth, P. R. & Brereton, T. & Brickland, J. & Campbell, C. D. & Chamberlain, D. E. & Cooke, A. I. & Dulvy, N. K. & Dusic, N. R. & Fitton, M. & Freckleton, R. P. & Godfray, H. C. J. & Grout, N. & Harvey, H. J. & Hedley, C. & Hopkins, J. J. & Kift, N. B. & Kirby, J. & Kunin, W. E. & Macdonald, D. W. & Marker, B. & Naura, M. & Neale, A. R. & Oliver, T. & Osborn, D. (et al)

Content type: Journal article

Journal title: Journal of Applied Ecology

Evidence-based policy requires researchers to provide the answers to ecological questions that are of interest to policy makers. To find out what thos...

Read more

Comparative studies of the ingestive behaviour and herbage intake of sheep and cattle grazing indigenous hill plant communities.

Published online: 31 Aug 1991

Authors: Hodgson, J. & Forbes, T. D. A. & Armstrong, R. H. & Beattie, M. M. & Hunter, E. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

In field studies in Scotland, groups of non-lactating ewes and cows grazed together on 3 native grassland communities (Agrostis-Festuca, Nardus-Festuc...

Read more

Can managers inform models? Integrating local knowledge into models of red deer habitat use.

Published online: 15 Apr 2009

Authors: Irvine, R. J. & Fiorini, S. & Yearley, S. & McLeod, J. E. & Turner, A. & Armstrong, H. & White, P. C. L. & Wal, R. van der

Content type: Journal article

Journal title: Journal of Applied Ecology

Many ecologically based wildlife-habitat models provide only limited explanations of the observed data because they do not take account of the way in ...

Read more

A model of the grazing of hill vegetation by sheep in the UK. II. The prediction of offtake by sheep.

Published online: 26 Jun 1997

Authors: Armstrong, H. M. & Gordon, I. J. & Hutchings, N. J. & Illius, A. W. & Milne, J. A. & Sibbald, A. R.

Content type: Journal article

Journal title: Journal of Applied Ecology

A model is described which predicts seasonal changes in the quantity and digestibility of offtake by ewes and lambs grazing seven dwarf shrub-dominate...

Read more

Controlled grazing studies on Nardus grassland: effects of between-tussock sward height and species of grazer on Nardus utilization and floristic composition in two fields in Scotland.

Published online: 25 Jan 1997

Authors: Grant, S. A. & Torvell, L. & Sim, E. M. & Small, J. L. & Armstrong, R. H.

Content type: Journal article

Journal title: Journal of Applied Ecology

The utilization of the tussock-forming grass Nardus stricta was investigated in controlled grazing experiments in which various sward heights of betwe...

Read more