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Managing woodland stands in a way that retains productivity targets, but that also fosters biodiversity and stand resilience are key sustainable forest management goals. Current forestry policy advocates a diversification of woodland stands to achieve these goals, favouring mixed age structures, trees of mixed provenance and polycultures over single-aged monocultures. Evidence is lacking, however, to support this management recommendation as a measure that is assumed to 1) enhance resilience to pests and pathogens and 2) contribute to biodiversity gains and related ecosystem service delivery.
Artificial caterpillar used in insect predation studies
Peer Reviewed papers
Poeydebat, C., Jactel, H., Moreira, X., Koricheva, J., Barsoum, N., Bauhus, J., Eisenhauer, N., Ferlian, O., Francisco, M., Gottschall, F., Gravel, D., Mason, B., Muiruri, E., Muys, B., Nock, C., Paquette, A., Ponette, Q., Scherer-Lorenzen, M., Stokes, V., Staab, M., Verheyen, K. and Castagneyrol, B. (2020) Climate affects neighbour-induced changes in leaf chemical defences and tree diversity-herbivory relationships. Functional Ecology (in press)
Field, E., Castagneyrol, B., Gibbs, M., Jactel, H., Barsoum, N., Schönrogge, K. and Hector, A. (2020) Associational resistance to both insect and pathogen damage in mixed forests is modulated by tree neighbour identity and drought. Journal of Ecology DOI: 10.1111/1365-2745.13397
Field, E., Schönrogge, K., Barsoum, N., Hector, A. and Gibbs, M. (2019) Individual tree traits shape insect and disease damage on oak in a climate‐matching tree diversity experiment. Ecology and Evolution, 9(15): 8524-8540.
Grossman, J.J., Vanhellemont, M., Barsoum, N., Bauhus, J., Bruelheide, H., Castagneyrol, B., Cavender-Bares, J., Eisenhauer, N., Ferlian, O., Gravel, D., Hector, A., Jactel, H. et al. (2018) Synthesis and future research directions linking tree diversity to growth, survival, and damage in a global network of tree diversity experiments. Environmental and Experimental Botany, 152: 68-89 doi: 10.1016/j.envexpbot.2017.12.015
Paquette, A., Hector, A., Castagneyrol, B., Vanhellemont, M., Koricheva, J., Scherer-Lorenzen, M., Verheyen, K., Abdala-Roberts, L., Auge, H., Barsoum, N. et al. (2018) A million and more trees for science. Nature Ecology & Evolution, 2: 763–766.
Bellamy, C., Barsoum, N., Cottrell, J. and Watts, K. (2018) Encouraging biodiversity at all scales in support of resilient woodlands. Forestry Commission Research Note FCRN033. Forestry Commission, Edinburgh.
Suz, L.M., Kallow, S., Reed, K., Bidartondo, M.I. and Barsoum, N. (2017) Pine mycorrhizal communities in pure and mixed pine-oak forests: abiotic environment trumps neighboring oak host effects. Forest Ecology and Management, 406:370-380. DOI:https://dx.doi.org/10.1016/j.foreco.2017.09.030
Barsoum, N., Coote, L., Eycott, A.E., Fuller, L. and Kiewitt, A. and Davies, R.G. (2016) Diversity, functional structure and functional redundancy of woodland plant communities: how do mixed tree species plantations compare with monocultures? Forest Ecology and Management, 382, 244-256.
Barsoum, N. and Henderson, L. (2016) Converting planted non-native conifer to native woodlands: a review of the benefits, drawbacks and experience in Britain. Forestry Commission Research Note 24. Forestry Commission, Edinburgh.
Verheyen, K., Vanhellemont, M., Auge, H., Baeten, L., Baraloto, C., Barsoum, N., Bilodeau-Gauthier, S. Bruelheide, H., Castagneyrol, B., Godbold, D., Haase, J., Hector, A., Jactel, H., Koricheva, J., Loreau, M., Mereu, S., Messier, C., Muys, B., Nolet, P., Paquette, A., Parker, J., Perring, M., Ponette, Q., Potvin, C., Reich, P., Smith, A. & Scherer-Lorenzen, M. (2016) Contributions of a global network of tree diversity experiments to sustainable forest plantations. Ambio 45(1): 29-41.
Barsoum, N., Fuller, L, Ashwood, F., Reed, K., Bonnet-Lebrun, A.-S. and Leung, F (2014) Ground-dwelling spider (Araneae) and carabid beetle (Coleoptera: Carabidae) community assemblages in mixed and monoculture stands of oak (Quercus robur L./Quercus petraea (Matt.) Liebl.) and Scots pine (Pinus sylvestris L.). Forest Ecology and Management. 321: 29–41.
Barsoum, N., Bonnet-Lebrun, A-S., Brunt, J., Eycott, A., Kallow, S., Kiewitt, A. and Bidartondo, M. (2012) ‘Multitaxon responses to a ‘diversification’ in the composition of forest stands as an adaptation measure to global environmental change’ Conference Proceedings ‘Tackling climate change: contribution of forest scientific knowledge’ Tours, France.
Barsoum, N., McCartan, S., Wilkinson, M., Morison, J., Cottrell, J., Hubert, J. and Ray, D. (2011). Increasing the adaptation potential of native tree species to climate change. Conference Proceedings Joint BES – Natural England Meeting ‘Adapting Conservation to a Changing Climate’ 11-12 January 2011, Charles Darwin House, London.
Barsoum, N., Williams, D., Straw, N., Jukes, M., Johnson, R., Bidartondo, M., Kiewitt, A. and Ibrahim, R. (2009). Consequences of increased stand structural complexity for floral diversity and the prevalence of insect pests in Sitka spruce (Picea sitchensis) stands. Conference Proceedings ‘Adapting Forest Management to Maintain the Environmental Services: Carbon Sequestration, Biodiversity, Water’. Koli National Park, Finland 21.9.-24.9.2009.