Professor John Healey researches the ecology, management and ecosystem services of forests and agroforestry systems. Key themes include the role in the global carbon cycle of forests1,2,3 and their products4, climate change impact on forests5 and coral reefs6, forest biodiversity conservation at species7, site8,9 and landscape scales10, including the impact of invasive species11 and pathogens12, drivers of forest degradation13, and the ecological basis of forest restoration14 and sustainable forest management15,16. Research on agroforestry includes its role in livelihoods17 and mitigating deforestation and climate change18.
PROJECT WEB-SITE LINKS:
Smart Efficient Energy Centre: a £7M research centre working across three low carbon energy sectors: ocean energy, nuclear energy, and energy efficient structures.
Multi-Land: Enhancing Agricultural Productivity and Ecosystem Service Resilience in Multifunctional Landscapes. A research cluster of the National Research Network for Low Carbon, Energy and Environment
Invasive Woody Plants in the Tropics: The Invasive Woody Plants in the Tropics research group, based at the University of Wales, Bangor, UK, has undertaken two major field studies in Jamaica and Tanzania, together with a global review of invasions resulting in a comprehensive database, an analysis of common characteristics and recommendations for management and control.
Biodiversity conservation of ancient church and monastery yards in Ethiopia
Building Nicaraguan and Costa Rican capacity in biodiversity conservation: The homepage of the Darwin Initiative project 'Building Nicaraguan and Costa Rican capacity in biodiversity conservation'.
TWIRLS: Treating Waste for Restoring Land Sustainability: A European Commission LIFE-Environment project targeting the restoration of degraded land using locally sourced waste materials.
Cefn Conwy: The CEFN Conwy project is designed to enhance the technical knowledge and environmental management skills of farmers in rural Conwy
Envision: Developing next generation leaders in environmental science: A NERC Doctoral Training Partnership between Lancaster, Bangor and Nottingham Universities, Rothamsted Research, Centre for Ecology and Hydrology, and British Geological Survey.
CURRENT SUPERVISED RESEARCH STUDENTS
Jack Atkin-Wiolloughby. Restoring for a resilient future: Woodland community assembly trajectories in the face of multiple stressors. Co-supervised with Laurence Jones, Mike Perring and Andy Smith
Nisabhat Tonwoot. Forest policy in Thailand. Co-supervised with Neal Hockley
Harry Skinner. Altered states: Will forest-agriculture mosaic landscapes allow the long-term survival of a forest-specialist primate? Co-supervised with Alex Georgiev, Graeme Shannon, Isabel Rosa and Tim Davenport
Eilidh Forster. Developing environmentally sustainable forestry value chains. Co-supervised with Dave Styles and Caren Dymond
Estrella Yanguas Fernandez. Developing sustainable forestry value chains in Wales. Co-supervised with Dave Styles
RECENT RESEARCH OUTPUTS BY SUBJECT AREA
Below my journal papers published since 2012 are classified into seven subject areas:
- · Tropical forest management, degradation and conservation
- · Tropical forest ecology and restoration
- · Agroforestry
- · Temperate forest, heathland and peatland ecology and conservation
- · Tree disease bioeconomic modelling
- · Nutrient cycling/resource use/sustainable production
- · Science-policy interface
As a cross-cutting theme, the papers directly related to climate change mitigation and adaptation are indicated by C.
Tropical forest management, degradation and conservation
10 Smith, C.C., Barlow, J., Schwartz, N., Healey, J.R., Young, P.J. & Miranda, L. (2023). Amazonian secondary forests are greatly reducing fragmentation and edge exposure in old-growth forests. Environmental Research Letters (in press). C
Smith, C.C., Healey, J.R., Berenguer, E., Young, P.J., Taylor,B., Elias, F., Espírito-Santo, F. & Barlow, J. (2021). Old-growth forest loss and secondary forest recovery across Amazonian countries. Environmental Research Letters 16: 085009. https://doi.org/10.1088/1748-9326/ac1701 C
2 Smith, C.C., Espírito-Santo, F.D.B., Healey, J.R., Young, P.J., Lennox, G.D., Ferreira, J. & Barlow, J. (2020). Secondary forests offset less than 10% of deforestation-mediated carbon emissions in the Brazilian Amazon. Global Change Biology 26, 7006-7020. https://doi.org/10.1111/gcb.15352 C
11 Bellingham, P.J., Tanner, E.V.J., Martin, P.H., Healey, J.R. & Burge, O.R. (2018). Endemic trees in a tropical biodiversity hotspot imperilled by an invasive tree. Biological Conservation 217, 47-53 https://www.sciencedirect.com/science/article/pii/S0006320717313964.
15 Kleinschroth, F., Healey, J.R. Gourlet-Fleury, S., Mortier, F. & Stoica, R.S. (2017). Effects of logging on roadless space in intact forest landscapes of the Congo Basin. Conservation Biology 31, 469-480 http://onlinelibrary.wiley.com/doi/10.1111/cobi.12815/full.
Kleinschroth, F. & Healey, J.R. (2017). Impacts of logging roads on tropical forests. Biotropica 49, 620-635 http://onlinelibrary.wiley.com/doi/10.1111/btp.12462/full.
Kleinschroth, F., Healey, J.R., Sist, P., Mortier, F. & Gourlet-Fleury, S. (2016). How persistent are the impacts of logging roads on Central African forest vegetation? Journal of Applied Ecology 53, 1127-1137. https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.12661 C
Kleinschroth, F., Healey, J.R. & Gourlet-Fleury, S. (2016). Sparing forests in Central Africa: re-use old logging roads to avoid creating new ones. Frontiers in Ecology and the Environment 14, 9-10 http://onlinelibrary.wiley.com/doi/10.1002/FEEKleinscrothletter.1/epdf.
Kleinschroth, F., Gourlet-Fleury, S., Gond, V., Sist, P. & Healey, J.R. (2016). Logging roads in tropical forests: Synthesis of literature written in French and English highlights environmental impact reduction through improved engineering. Bois et Forêts des Tropiques 328 (2), 13-26. http://revues.cirad.fr/index.php/BFT/article/view/ID-BFT-151216
Kleinschroth, F., Gourlet-Fleury, S., Sist, P., Mortier, F. & Healey, J.R. (2015). Legacy of logging roads in the Congo Basin: how persistent are the scars in forest cover? Ecosphere 6(4): 64 http://dx.doi.org/10.1890/ES14-00488.1.
8 Aerts, R., Van Overtveld, K., Wassie, A., Abiyu, A., Demissew, S., Daye, D.D., Giday, K., Haile, M., TewoldeBerhan, S., Teketay, D., Teklehaimanot, Z., Binggeli, P., Deckers, S., Friis, I., Gratzer, G., Hermy, M., Sterck, F.J., Muys, B., Bongers, F. & Healey, J.R. (2016). Conservation of the Ethiopian church forests: threats, opportunities and implications for their management. Science of the Total Environment 551-552, 404-414. https://www.sciencedirect.com/science/article/pii/S0048969716302467
Daye, D.D. & Healey, J.R. (2015). Impacts of land-use change on sacred forests at the landscape scale. Global Ecology and Conservation 3, 349-358 http://www.sciencedirect.com/science/article/pii/S2351989414000961.
Desissa, D. & Healey, J.R. (2012). Sacred groves in the Gamo Highlands of southern Ethiopia: biocultural values and threats. Langscape 2 (11), 44-47.
13 Morales-Barquero, L., Borrego, A., Skutsch, M., Kleinn, C. & Healey, J.R. (2015). Identification and quantification of drivers of forest degradation in tropical dry forests: a case study in Western Mexico. Land Use Policy 49, 296-309 http://dx.doi.org/10.1016/j.landusepol.2015.07.006. C
Morales-Barquero, L., Skutsch, M., Jardel-Peláez, E.J., Ghilardi, A., Kleinn, C. & Healey, J.R. (2014). Operationalizing the definition of forest degradation for REDD+, with application to Mexico. Forests 5, 1653-1681 http://www.mdpi.com/1999-4907/5/7/1653. C
Petrokofsky, G., Sist, P., Blanc, L., Doucet, J.-L., Finegan, B., Gourlet-Fleury, S., Healey, J.R., Livoreil, B., Nasi, R., Peña-Claros, M., Putz, F.E. & Zhou, W. (2015). Comparative effectiveness of silvicultural interventions for increasing timber production and sustaining conservation values in natural tropical production forests. A systematic review protocol. Environmental Evidence 4: 8. https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/s13750-015-0034-7 C
Rendón Thompson, O.R., Paavola, J., Healey, J.R., Jones, J.P.G, Baker, T.R. & Torres, J. (2013). Reducing emissions from deforestation and forest degradation (REDD+): transaction costs of six Peruvian projects. Ecology and Society 18(1), 17 http://dx.doi.org/10.5751/ES-05239-180117. C
Pullin, A.S., Bangpan, M., Dalrymple, S., Dickson, K., Haddaway, N.R., Healey, J.R., Hauari, H., Hockley, N., Jones, J.P.G., Knight, T., Vigurs, C. & Oliver, S. (2013). Human well-being impacts of terrestrial protected areas. Environmental Evidence 2, 19. https://environmentalevidencejournal.biomedcentral.com/articles/10.1186/2047-2382-2-19
Bowler, D.E., Buyung-Ali, L.M., Healey, J.R., Jones, J.P.G., Knight T.M. & Pullin, A.S. (2012). Does community forest management provide global environmental benefit and improve local welfare? Frontiers in Ecology and the Environment 10, 29-36. https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1890/110040 C
Tropical forest (and coral reef!) ecology and restoration
6 Ford, H., Gove, J., Healey, J.R., Davies, A., Graham, N. & Williams, G. (2023). Recurring bleaching events disrupt the spatial properties of coral reef benthic communities across scales. Remote Sensing in Ecology and Conservation (in press). C
5 Tanner, E.V.J., Bellingham, P.J., Healey, J.R. & Feeley, K.J. (2022). Hurricane disturbance accelerated the thermophilization of a Jamaican montane forest. Ecography 2022: e06100. http://doi.org/10.1111/ecog.06100 C
Weissflog, A., Markesteijn, L., Aiellos, A., Healey, J.R. & Geipel, I. (2022). Do prey shape, time of day, and plant trichomes affect the predation rate on plasticine prey in tropical rainforests? Biotropica https://doi.org/10.1111/btp.13150.
Ford, H., Davies, A., Gove, J., Graham, N., Healey, J.R., Conklin, E. & Williams, G. (2021). Spatial scaling properties of coral reef benthic communities. Ecography 44, 188-198. https://doi.org/10.1111/ecog.05331.
3 Poorter, L…, Healey, J.R.….. (2015). Diversity enhances carbon storage in tropical forests. Global Ecology and Biogeography 24, 1314-1328. https://onlinelibrary.wiley.com/doi/abs/10.1111/geb.12364 C
14 Derroire, G., Powers, J.S., Hulshof, C.M., Cárdenas Varela, L.E. & Healey, J.R. (2018). Contrasting patterns of variation among and within species in leaf functional traits during tropical dry forest succession in Costa Rica. Scientific Reports 8, Article number 285. https://www.nature.com/articles/s41598-017-18525-1
Derroire, G., Balvanera, P., Castellanos-Castro, C., Decocq, G., Kennard, D., Lebrija-Trejos, E., Leiva, J., Oden, P.C., Powers, J., Rico-Gray, V., Tigabu, M. & Healey, J.R. (2016). Resilience of tropical dry forests – a meta-analysis of changes in species diversity and composition during secondary succession. Oikos 125, 1386-1397. https://onlinelibrary.wiley.com/doi/abs/10.1111/oik.03229
Derroire, G., Coe, R. & Healey, J.R. (2016). Isolated trees as nuclei of regeneration in tropical pastures: testing the importance of niche-based and landscape factors. Journal of Vegetation Science 27, 679-691. https://onlinelibrary.wiley.com/doi/abs/10.1111/jvs.12404
Derroire, G., Tigabu, M., Odén, P.C. & Healey, J.R. (2016). The effects of established trees on woody regeneration during secondary succession in tropical dry forests. Biotropica 48, 290-300. https://onlinelibrary.wiley.com/doi/abs/10.1111/btp.12287
McLaren, K., Luke, D., Tanner, E., Bellingham, P.J. & Healey, J.R. (2019). Reconstructing the effects of hurricanes over 155 years on the structure and diversity of trees in two tropical montane rain forests in Jamaica. Agricultural and Forest Meteorology 276-277, article number 107621. https://www.sciencedirect.com/science/article/pii/S0168192319302291
Tanner, E.V.J., Rodriguez-Sanchez, F., Healey, J.R., Holdaway, R.J. & Bellingham, P.J. (2014). Long-term hurricane damage effects on tropical forest tree growth and mortality. Ecology 95, 2974-2983 http://dx.doi.org/10.1890/13-1801.1.
Chai, S.-L., Healey, J.R. & Tanner, E.V.J. (2012). Evaluation of forest recovery over time and space using permanent plots monitored over 30 years in a Jamaican montane rain forest. PLOS ONE 7(11): e48859. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0048859
18 Ford, H., Healey, J.R., Webb, B., Pagella, T.F. & Smith, A.R. (2021). Hedgerow effects on CO2 emissions are regulated by soil type and season: implications for carbon flux dynamics in livestock-grazed pasture. Geoderma 382, 114697. https://doi.org/10.1016/j.geoderma.2020.114697. C
Ford, H., Healey, J.R., Webb, B., Pagella, T.F. & Smith, A.R. (2019). How do hedgerows influence soil organic carbon in livestock-grazed pasture? Soil Use and Management 35, 576-584. https://onlinelibrary.wiley.com/doi/10.1111/sum.12517 C
Pagella, T. & Healey, J.R. (2020). Agroforestry in Wales, pp. 65-105 in Wiik, E, Hunter, S., Andrews, W., Healey, J.R., Bathgate, S., McKay, H., Jenkins, T. & Pagella, T. (2020). Climate Smart Woodlands in Wales. Final Report of a project commissioned by Welsh Government from Bangor University and Forest Research. https://research.bangor.ac.uk/portal/en/researchoutputs/agroforestry-in-wales(9894e343-7b4e-432f-b07d-bbe521b45717).html
Rahman, S.A., Sunderland, T., Roshetko, J.M. & Healey, J.R. (2017). Facilitating smallholder tree farming in fragmented tropical landscapes: Challenges and potentials for sustainable land management. Journal of Environmental Management 198, 110-121. http://www.sciencedirect.com/science/article/pii/S030147971730395X
17 Rahman, S.A., Jacobsen, J.B., Healey, J.R., Roshetko, J.M. & Sunderland, T. (2017). Finding alternatives to swidden agriculture: Does agroforestry improve livelihood options and reduce pressure on existing forest? Agroforestry Systems 91, 185-199. https://link.springer.com/article/10.1007/s10457-016-9912-4
Rahman, S., Sunderland, T., Kshatriya, M., Roshetko, J.M., Pagella, T. & Healey, J.R. (2016). Towards productive landscapes: Trade-offs in tree-cover and income across a matrix of smallholder agricultural land-use systems. Land Use Policy 58, 152-164 http://www.sciencedirect.com/science/article/pii/S0264837716303064.
Rahman, S.A., Sunderland, T., Roshetko, J.M., Basuki, I. & Healey, J.R. (2016). Tree culture of smallholder farmers practicing agroforestry in Gunung Salak Valley, West Java, Indonesia. Small-scale Forestry 58, 152-164 http://www.sciencedirect.com/science/article/pii/S0264837716303064.
Noponen, M.R.A., Healey, J.R., Soto, G. & Haggar, J.P. (2013). Sink or source – the potential of coffee agroforestry systems to sequester atmospheric CO2 into soil organic carbon. Agriculture, Ecosystems & Environment, 175, 60-68. https://www.sciencedirect.com/science/article/pii/S0167880913001229 C
Noponen, M.R.A., Haggar, J.P., Edwards-Jones, G., Healey, J.R. (2013). Intensification of coffee systems can increase the effectiveness of REDD mechanisms. Agricultural Systems 119, 1-9. https://www.sciencedirect.com/science/article/pii/S0308521X13000395 C
Noponen, M.R.A., Edwards-Jones, G., Haggar, J.P., Soto, G., Attarzadeh, N. & Healey, J.R. (2012). Greenhouse gas emissions in coffee grown with differing input levels under conventional and organic management. Agriculture, Ecosystems & Environment 151, 6-15. https://www.sciencedirect.com/science/article/pii/S0167880912000345 C
Temperate forest, heathland and peatland ecology, conservation and management
4 Forster, E., Healey, J.R., Newman, G. & Styles, D. (2023). Circular wood use can accelerate global decarbonisation but requires cross-sectoral coordination. Nature Communications (in press). https://doi.org/10.21203/rs.3.rs-2745784/v1 C
1 Forster, E.J., Healey, J.R., Dymond, C. & Styles, D. (2021). Commercial afforestation can deliver effective climate change mitigation under multiple decarbonisation pathways. Nature Communications 12: 3831. https://www.nature.com/articles/s41467-021-24084-x C
12 Cracknell, D., Peterken, G., Pommerening, A., Lawrence, P. & Healey, J.R. (2023). Neighbours matter and the weak succumb: ash dieback infection is more severe in ash trees with fewer conspecific neighbours and lower prior growth rate. Journal of Ecology (published on-line) http://doi.org/10.1111/1365-2745.14191.
Tew, E.R. ..... Healey, J.R. .... (2023). A horizon scan of issues affecting UK forest management within 50 years. Forestry An International Journal of Forest Research (in press). C
Webb, B., Robinson, D.A., Marshall, M.R., Ford, H., Pagella, T., Healey, J.R. & Smith, A.R. (2022). Variation in root morphology amongst tree species influences soil hydraulic conductivity and macroporosity. Geoderma 425: 116057. https://www.sciencedirect.com/science/article/pii/S0016706122003640
Ribbons, R.R., Del Toro, I., Smith, A.R., Healey, J.R., Vesterdal, L. & McDonald, M.A. (2022). Roots and rhizospheric soil microbial community responses to tree species mixtures. Applied Soil Ecology 176: 104509. https://doi.org/10.1016/j.apsoil.2022.104509.
Barton, O., Gresham, A., Healey, J.R., Cordes, L. & Shannon, G. (2022). The effects of population management on wild ungulates: a systematic map of evidence for UK species. PLoS One 17: e0267385. https://doi.org/10.1371/journal.pone.0267385
Peters, T.D., Hardaker, A.R., Dauksta, D., Newman, G., Lellig, C., & Healey, J.R. (2021). Top Five Alternative Conifer Tree Species in Great Britain. Cardiff: Welsh Government, Government Social Research report number C160/2020/2021, 132 p. https://woodknowledge.wales/wkw-resource/forestry/top-five-alternative-conifer-tree-species-review C
Wiik, E., Pagella, T., Healey, J.R., Bathgate, S., McKay, H. & Jenkins, T. (2020). Analysis of the viability of “land sparing” and “land sharing” strategies for commercial woodland expansion within Wales, pp. 9-64 in Wiik, E, Hunter, S., Andrews, W., Healey, J.R., Bathgate, S., McKay, H., Jenkins, T. & Pagella, T. (2020). Climate Smart Woodlands in Wales. Final Report of a project commissioned by Welsh Government from Bangor University and Forest Research. https://research.bangor.ac.uk/portal/en/researchoutputs/analysis-of-the-viability-of-land-sparing-and-land-sharing-strategies-for-commercial-woodland-expansion-within-wales(c76fcdc0-14c0-4169-bcb3-f29a3ad35061).html C
Marini Govigli, V., Healey, J.R., Wong, J.L.G., Stara, K., Tsiakiris, R. & Halley, J.M. (2020). When nature meets the divine: effect of prohibition regimes on the structure and tree-species composition of sacred forests in northern Greece. Web Ecology 20, 53-86. https://doi.org/10.5194/we-20-53-2020
7 Ovenden, T.S., Palmer, S.C.F., Travis, J.M.J. & Healey, J.R. (2019). Improving reintroduction success in large carnivores through individual-based modelling: how to reintroduce Eurasian lynx (Lynx lynx) to Scotland. Biological Conservation 234, 140-153. https://www.sciencedirect.com/science/article/pii/S0006320718314915
9 Avtzis D.N., Stara K., Sgardeli V., Betsis A., Diamandis S., Healey J.R., Kapsalis E., Kati V., Korakis G., Marini Govigli V., Monokrousos N., Muggia L., Nitsiakos V., Papadatou E., Papaioannou H., Rohrer A., Τsiakiris R., van Houtan K.S., Vokou D., Wong J. & Halley, JM. (2018). Quantifying the conservation value of sacred natural sites. Biological Conservation 222, 95-103. https://www.sciencedirect.com/science/article/pii/S0006320717321183
Ford, H., Healey, J.R., Markesteijn, L. & Smith, A.R. (2018). How does grazing management influence the functional diversity of oak woodland ecosystems? A plant trait approach. Agriculture, Ecosystems and Environment 258, 154-161. https://doi.org/10.1016/j.agee.2018.02.025
Gray, J. & Healey, J.R. (2016). Overwintering sites of ladybirds, shieldbugs and allied species in Hertfordshire woodland: how important is aspect? Transactions of the Hertfordshire Natural History Society 48 (1), 89-98. http://ecoforestry.uk/publications.html
Haddaway, N.R., Burden, A., Evans, C.D., Healey, J.R., Jones, D.L., Dalrymple, S.E. & Pullin, A.S. (2014). Evaluating effects of land management on greenhouse gas fluxes and carbon balances in boreo-temperate lowland peatland systems. Environmental Evidence 2014, 3: 5. http://www.environmentalevidencejournal.org/content/3/1/5/. C
Smith, A.R., Lukac, M., Hood, R., Healey, J.R., Miglietta, F. & Godbold, D.L. (2013). Elevated CO2 enrichment induces a differential biomass response in a mixed species temperate forest plantation. New Phytologist 198, 156-168. https://nph.onlinelibrary.wiley.com/doi/abs/10.1111/nph.12136 C
DeLuca, T.H., Zewdie, S.A., Zackrisson, O., Healey, J.R. & Jones, D.L. (2013). Bracken fern (Pteridium aquilinum L. Kuhn) promotes an open nitrogen cycle in heathland soils. Plant and Soil 367, 521-534. https://link.springer.com/article/10.1007%2Fs11104-012-1484-0
Tree disease bioeconomic modelling
16 Roberts, M., Gilligan, C.A., Kleczkowski, A., Hanley N., Whalley, A.E. & Healey, J.R. (2020). The effect of forest management options on forest resilience to pathogens. Frontiers In Forests And Global Change 3:7. https://doi.org/10.3389/ffgc.2020.00007
Macpherson, M.F., Kleczkowski, A., Healey, J.R., Quine, C. & Hanley, N. (2017). The effects of invasive pests and diseases on strategies for forest diversification. Ecological Modelling 350, 87-99. http://www.sciencedirect.com/science/article/pii/S0304380016303726
Macpherson, M.F., Kleczkowski, A., Healey, J.R. & Hanley, N. (2018). The effects of disease on optimal forest rotation: a generalisable analytical framework. Environmental and Resource Economics 70, 565-588. http://link.springer.com/article/10.1007%2Fs10640-016-0077-4.
Macpherson, M.F., Kleczkowski, A., Healey, J.R. & Hanley, N. (2017). Payment for multiple forest benefits alters the effect of tree disease on optimal forest rotation length. Ecological Economics 134, 82-94. http://www.sciencedirect.com/science/article/pii/S0921800916308722.
Sheremet, O., Healey, J.R., Quine, C. & Hanley, N. (2017). Public preferences and willingness to pay for forest disease control in the UK. Journal of Agricultural Economics 68, 781-800. http://onlinelibrary.wiley.com/doi/10.1111/1477-9552.12210/full.
Nutrient cycling/resource use/sustainable production
Talboys, P.J., Healey, J.R., Withers, P.J.A., Roose, T., Edwards, A.C., Pavinato, P.S. & Jones, D.L. (2020). Combining seed dressing and foliar applications of phosphorus fertiliser can give similar crop growth and yield benefits to soil applications together with greater recovery rates. Frontiers in Agronomy 2. https://doi.org/10.3389/fagro.2020.605655
Talboys, P.J., Heppell, J., Roose, T., Healey, J.R., Jones, D.L. & Withers, P.J.A. (2016). Struvite: a slow-release fertiliser for sustainable phosphorus management? Plant and Soil 401, 109-123. https://link.springer.com/article/10.1007%2Fs11104-015-2747-3
Withers, P.J.A., Sylvester-Bradley, R., Jones, D.L., Healey, J.R. & Talboys, P.J. (2014). Feed the crop not the soil: rethinking phosphorus management in the food chain. Environmental Science & Technology 48, 6523-6530. https://pubs.acs.org/doi/10.1021/es501670j
Talboys, P.J., Healey, J.R., Withers, P.J.A. & Jones, D.L. (2014). Phosphate depletion modulates auxin transport in Triticum aestivium leading to altered root branching. Journal of Experimental Botany 65, 5023-5032. https://academic.oup.com/jxb/article/65/17/5023/559612
Talboys, P.J., Owen, D.W., Healey, J.R., Withers, P.J.A. & Jones, D.L. (2014). Auxin secretion by Bacillus amyloliquefaciens FZB42 both stimulates root exudation and limits phosphorus uptake in Triticum aestivium. BMC Plant Biology 14: 51. http://www.biomedcentral.com/1471-2229/14/51.
Styles, D., Gibbons, J., Williams, A.P., Stichnothe, H., Chadwick, D.R. & Healey, J.R. (2015). Cattle feed or bioenergy? Consequential life cycle assessment of biogas feedstock options on dairy farms. Global Change Biology Bioenergy 7, 1034-1049. https://onlinelibrary.wiley.com/doi/abs/10.1111/gcbb.12189 C
Gibbons, J.M., Williamson, J.C., Williams, A.P., Withers, P.J.A., Hockley, N., Harris, I.M., Hughes, J.W., Taylor, R.L., Jones, D.L. & Healey, J.R. (2014). Sustainable nutrient management at field, farm and regional level: soil testing, nutrient budgets and the trade-off between lime application and greenhouse gas emissions. Agriculture, Ecosystems & Environment 188, 48-56. https://www.sciencedirect.com/science/article/pii/S0167880914000966 C
Ford, H., Smith, A., Pagella, T. & Healey, J. (2016). Trees, water storage and flooding in upland agricultural landscapes: why do we need to know more? Forestry & Timber News April 2016, 27-28. https://research.bangor.ac.uk/portal/en/researchoutputs/trees-water-storage-and-flooding-in-upland-agricultural-landscapes-why-do-we-need-to-know-more(934931b1-da7a-4bdf-9472-2bf998bc0039).html
Policy, governance, science-policy interface
Wynne-Jones, S., Dandy, N., Bodner, T. & Healey, J.R. (2022). Governing like a forest: achieving diachronic integrity or emergency carbon sequestration through post-Brexit forest policy? In Attorp, A., McAreavey, R. & Heron, S. (eds). Rural Governance in the UK: Towards a Sustainable and Equitable Society, Routledge, p. 120-139. DOI: 10.4324/9781003200208-7 C
O’Leary, B.C., Kvist, K., Bayliss, H.R., Derroire, G., Healey, J.R., Hughes, K., Kleinschroth, F., Sciberras, M., Woodcock, P. & Pullin, A.S. (2016). The reliability of evidence reviews in environmental science and conservation. Environmental Science and Policy 64, 75-82 http://www.sciencedirect.com/science/article/pii/S1462901116303318.
RECENTLY COMPLETED PHD
Amy Gresham. Exploring novel techniques to quantify habitat use, diet, and ecological effects of deer, with a focus on fallow deer (Dama dama) in the Elwy Valley, North Wales. Co-supervised with Graeme Shannon, Markus Eichhorn and Si Creer.
Owain Barton. Assessing landscape-scale patterns of activity and habitat-use by fallow deer (Dama dama) in the Elwy Valley region of North Wales, UK. Co-supervised with Graeme Shannon and Line Cordes. https://research.bangor.ac.uk/portal/files/56175331/2023_BartonO_phd.pdf
Anita Weissflog. The role of plant-fungus and plant-insect interactions in the dynamics of secondary and mature tropical rainforests. Co-supervised with Lars Markesteijn, Bangor University, and Bettina Engelbrecht, Univsity of Bayreuth. https://research.bangor.ac.uk/portal/files/49273336/2022_WeissflogA_phd.pdf
Charlotte Smith. A multi-scale assessment of the regrowth potential of secondary forests in the Brazilian Amazon. Co-supervised with Jos Barlow and Paul Young, Lancaster University and Naomi Schwartz University of British Columbia. http://www.research.lancs.ac.uk/portal/en/publications/-(df6b696e-cc3b-4168-8073-7cb83619bffc).html
Helen Ford. Widening our view of the reef: the landscape ecology of disturbance and recovery on Pacific coral reefs. Co-supervised with Gareth Williams, Bangor University, and Nick Graham, Lancaster University.
Valentino Marini Govigli. Modelling socio-ecological interactions of sacred forests in northern Greece. Co-supervised with John Halley, University of Ioannina; and Jenny Wong, Bangor University. https://freader.ekt.gr/eadd/index.php?doc=48375
Caren Dymond. Disturbance and climate change risks to forest carbon sinks and potential management responses. https://research.bangor.ac.uk/portal/files/22184099/Dymond_final_thesis_for_publication.pdf
Relena Ribbons. Seeing the forest for the trees: Tree species effects on soil microbial communities and nutrient cycling dynamics. Co-supervised with Morag McDonald and Andy Smith, Bangor University; Lars Vesterdal, Copenhagen University; and Cindy Prescott, University of British Columbia. https://research.bangor.ac.uk/portal/files/20569600/null
Syed Rahman. Incorporation of trees in smallholder land use system: Farm characteristics, rates of return and policy issues influencing farmer adoption. Co-supervised with Jette Bredahl Jacobsen and Jens Friis Lund, University of Copenhagen; and Terry Sunderland, CIFOR. https://research.bangor.ac.uk/portal/files/20569830/null
Lucia Morales Barquero. Beyond carbon accounting: A landscape perspective on measuring and monitoring tropical forest degradation. Co-supervised with Christoph Kleinn, University of Göttingen; Margaret Skutsch, National Autonomous University of Mexico. https://research.bangor.ac.uk/portal/files/20566655/null
Fausto Bolom-Ton. Factors affecting variation in forest community characteristics and leaf-litter decomposition in tropical montane forest of Chiapas, Mexico: a functional ecology approach. Co-supervised with Bryan Finnegan, CATIE. https://research.bangor.ac.uk/portal/files/20570337/null
Géraldine Derroire. Secondary succession in tropical dry forests: Drivers and mechanisms of forest regeneration. Co-supervised with Per Christer Oden and Mulualem Tigabu, Swedish University of Agricultural Sciences. https://research.bangor.ac.uk/portal/files/20579765/null
Fritz Kleinschroth. Roads in the rainforests: Legacy of selective logging in Central Africa. Evaluating the temporal and spatial dynamics of logging road networks. Co-supervised with Sylvie Gourlet-Fleury and Plinio Sist, CIRAD, Montpellier. https://research.bangor.ac.uk/portal/files/20578259/null
Desalegn Desissa. Fragmentated forests in south-western Ethiopia: implications of land-use change on plant species composition and priorities for future conservation. https://research.bangor.ac.uk/portal/files/20577295/null
Jimena Esquivel Sheik. Plant traits and litter decomposition of tree species naturally regenerating in Central America pasturelands. Co-supervised with Bryan Finegan, CATIE. https://research.bangor.ac.uk/portal/files/20578534/null
Martin Noponen. Carbon and economic performance of coffee agroforestry systems in Costa Rica and Nicaragua. Co-supervised with Gareth Edwards-Jones; and Jeremy Haggar and Gabriela Soto, CATIE. https://research.bangor.ac.uk/portal/files/20570051/null
Deirdre Ninaber. Improved control of Rhododendron ponticum for environmental management. Co-supervised with Robert Brook, Bangor University. https://research.bangor.ac.uk/portal/files/20579157/null
Sue Hearn. Perspectives in vegetation monitoring: an evaluation of approaches currently used in the UK. Co-supervised with Morag McDonald, Bangor University. research.bangor.ac.uk/portal/files/55673985/S_M_HEARN_PhD_2009_OCR.pdf
Myers Paul. Use of woodchip for agricultural livestock bedding. Co-supervised with Davey Jones, Bangor University. https://research.bangor.ac.uk/portal/files/20572007/null
SOME NEWS ITEMS ABOUT JOHN HEALEY’S RESEARCH
Rural policy makers encouraged to ‘govern like a forest’ in post-Brexit Britain | Bangor University
Global warming and an intense hurricane combine to drive tree species up tropical mountains towards extinction | Bangor University
Planned UK planting of forests expected to be the equivalent of 14 billion fewer kilometres being driven | College of Environmental Sciences and Engineering | Bangor University
New study exposes big differences amongst Amazonian countries in their rates of forest recovery as well as deforestation | School of Natural Sciences | Bangor University
Tree diseases in forests: prevention is better than cure | Forestry@Bangor | Bangor University
New study models the proposed reintroduction of the Eurasian lynx to Scotland | School of Natural Sciences | Bangor University
Sacred sites have a biodiversity advantage that could help world conservation | News and Events | Bangor University
Scientists call for action to tackle the threat of invasive tree species to a global biodiversity hotspot | News and Events | Bangor University
Ethiopian ‘Church Forests’ are a crucial resource deserving of world heritage status | News and Events | Bangor University
RESEARCH PARTNERSHIPS/CENTRES AND NETWORKS
Envision Doctoral Training Partnership - Developing the next generation leaders in Environmental Science (phase 1, 2014-2022, and phase 2, 2019-2027). I am Co-Principal Investigator, Bangor lead and Forest College lead of this NERC DTP, which is led by Professor Nick Ostle (Lancaster University) in partnership with Bangor University, University of Nottingham, UK Centre for Ecology and Hydrology, British Geological Survey and Rothamsted Research. http://www.envision-dtp.org/
Advanced Training Partnership for sustainable and efficient food production I was Co-Investigator of this BBSRC project, which was led by Principal Investigator Professor Jamie Newbold at Aberystwyth University. Leadership of the Bangor component was subsequently taken over by Professor Dave Chadwick.
Smart Efficient Energy Centre I am Co-Investigator of this European Regional Development Fund project, having co-initiated and co-edited the grant application under the leadership of Professor Colin Jago. Following Colin’s retirement the project is now led by Professor Simon Neill. http://seec.bangor.ac.uk/
Sêr Cymru National Research Network for Low Carbon, Energy and the Environment I was Co-Investigator of the application made jointly by Bangor and Aberystwyth Universities for this network funded by the Welsh Government and Higher Education Funding Council for Wales, which was then led by Professor David Thomas.
Biosciences Environment and Agriculture Alliance I was Co-Investigator of the application for this partnership between Aberystwyth and Bangor Universities funded by the Welsh Government and Higher Education Funding Council for Wales. I acted as Bangor lead.
Centre for Integrated Research in the Rural Environment I was Co-Principal Investigator of this Higher Education Funding Council for Wales funded partnership between Bangor and Aberystwyth Universities, which I co-directed with Professor Jamie Newbold (Aberystwyth University).
Environment: Welsh Centre for Catchment and Coastal Research I was the lead author and manager of this joint Bangor and Aberystwyth Universities infrastructure programme funded by the Higher Education Funding Council for Wales - Science Research Infrastructure Fund 3 scheme, in collaboration with Professor Paul Brewer (Aberystwyth University).
In addition, I played a major role in facilitating the development and funding application of the Centre for Environmental Biotechnology, which is funded by the European Regional Development Fund and is led by Professor Peter Golyshin. http://environmental-biotechnology.bangor.ac.uk/
RESEARCH PROJECTS SINCE 2000
TEMPERATE FORESTS AND AGROFORESTRY
Literature Review of Top Five Alternative Tree Species in Great Britain I am Co-Investigator of this project managed by the Welsh Government on behalf of the UK, Scottish and Welsh governments, having co-written the tender application with the Woodknowledge Wales team of Gary Newman, Ashley Hardaker, Tim Peters and Dainis Dauksta. The final report of this project has now been published: Peters, T.D., Hardaker, A.R., Dauksta, D., Newman, G., Lellig, C., & Healey, J.R. (2021). Top Five Alternative Conifer Tree Species in Great Britain. Cardiff: Welsh Government, Government Social Research report number C160/2020/2021, 132 p. https://woodknowledge.wales/wkw-resource/forestry/top-five-alternative-conifer-tree-species-review
Economic Aspects of Woodland Creation for Timber Production I was a contributor to this Woodknowledge Wales project which has produced the following six publications:
Hardaker, A. (with contributions from Healey, J.R.) (2021). Financial evaluation of afforestation projects - basic steps. Economic Aspects of Woodland Creation for Timber Production 1. Woodknowledge Wales in Association with Bangor University, 11 p. https://woodknowledge.wales/home-grown-homes/afforestation
Hardaker, A. (with contributions from Healey, J.R.) (2021). Evaluating the financial costs of forestry. Economic Aspects of Woodland Creation for Timber Production 2. Woodknowledge Wales in Association with Bangor University, 9 p. https://woodknowledge.wales/home-grown-homes/afforestation
Hardaker, A. (with contributions from Healey, J.R.) (2021). Revenue from forestry enterprises. Economic Aspects of Woodland Creation for Timber Production 3. Woodknowledge Wales in Association with Bangor University, 8 p. https://woodknowledge.wales/home-grown-homes/afforestation
Hardaker, A. (with contributions from Healey, J.R.) (2021). Accounting for time. Economic Aspects of Woodland Creation for Timber Production 4. Woodknowledge Wales in Association with Bangor University, 8 p. https://woodknowledge.wales/home-grown-homes/afforestation
Hardaker, A. (with contributions from Healey, J.R.) (2021). Alternative tools for financial evaluation of forestry. Economic Aspects of Woodland Creation for Timber Production 5. Woodknowledge Wales in Association with Bangor University, 9 p. https://woodknowledge.wales/home-grown-homes/afforestation
Hardaker, A. (with contributions from Healey, J.R.) (2021). Incorporating uncertainty and risk into forestry financial evaluations. Economic Aspects of Woodland Creation for Timber Production 6. Woodknowledge Wales in Association with Bangor University, 11 p. https://woodknowledge.wales/home-grown-homes/afforestation
Climate smart woodlands I am Co-Investigator of this Welsh Government Rural Development Programme project, having co-initiated and co-written the grant application with Principal Investigator Dr Tim Pagella.
MULTI-LAND: Enhancing agricultural productivity and ecosystem service resilience in multifunctional landscapes I was Co-Investigator of this Sêr Cymru National Research Network for Low Carbon, Energy and the Environment cluster project, having contributed content to the grant application, which was led by Principal Investigator Dr Andy Smith. http://www.nrn-lcee.ac.uk/multi-land/
Modelling economic impact and strategies to increase resilience against tree disease outbreaks I was Co-Investigator and Bangor lead for this BBSRC-LWEC project, which was led by Principal Investigator Professor Adam Kleczkowski (now at the University of Strathclyde).
THALIS-SAGE: Conservation through religion – the sacred groves of Epirus I was Co-Investigator and Bangor lead for this EU project, which is led by Principal Investigator Professor John Halley (University of Ioannina).
Carbon sequestration in fruit trees I was Co-Investigator of this project funded by the Coca-Cola Company, which was led by PI Professor Gareth-Edwards Jones.
RESTORATION AND SUSTAINABLE MANAGEMENT OF TEMPERATE ECOSYSTEMS
Improving catchment environmental quality through better nutrient management in the livestock farming landscape I was Principal Investigator of this project funded by the Rural Development Plan for Wales. http://cefnconwy.bangor.ac.uk/
Using systematic review methodology to establish an evidence base for implementation of the Environment Agency Wales Climate Change Strategy I was Co-Investigator of this NERC project, which was led by Principal Investigator Professor Andrew Pullin.
Treating waste for restoring land sustainably I was Co-Principal Investigator of this EU LIFE project, which I jointly led with Professor Davey Jones. http://ies.bangor.ac.uk/TWIRLS/index.php.en
Sustainable post-industrial land restoration and re-creation of high biodiversity natural habitats I was Co-Principal Investigator of this EU LIFE project, which I jointly led with Professor Davey Jones.
Woodchip for livestock bedding I was Co-Principal Investigator of this project funded by Hybu Cig Cymru (Farming Connect). The Bangor component was led by Professor Davey Jones.
Fly ash from wood combustion: alternatives to landfill I was Co-Principal Investigator of this project funded by E.ON UK, which was led by Principal Investigator Dr James Walmsley.
TROPICAL FORESTS: BIODIVERSITY CONSERVATION AND SUSTAINABLE MANAGEMENT
Can tropical silvicultural interventions improve the sustainability of timber production while ensuring the conservation of production forests? I was Co-Investigator and Bangor lead for this CIFOR project, which was led by Principal Investigator Dr Plinio Sist (Head of the Forests and Societies research unit of CIRAD).
Human well-being impacts of terrestrial protected areas I was Co-Investigator of this project funded by the Scientific and Technical Advisory Panel (STAP) of the Global Environment Facility (UNEP), which was led by Principal Investigator Professor Andrew Pullin.
The evidence base for community forest management as a mechanism for reducing poverty and supplying environmental benefits I was Co-Investigator of this project funded by the United Nations Environment Programme, which was led by Principal Investigator Professor Andrew Pullin.
Capacity building for carbon- and biodiversity-based payments for ecosystem services in the Peruvian Amazon I was Co-Investigator of this project funded by NERC, ESRC and DFID through the Ecosystem Services for Poverty Alleviation programme, which was led by Dr Tim Baker (University of Leeds).
Building Nicaraguan and Costa Rican capacity in biodiversity conservation I was Co-Principal Investigator of this project funded by the Darwin Initiative of the UK Department of Environment Transport and the Regions, which was led by Dr Fergus Sinclair. http://darwin.bangor.ac.uk/index.html
Plant species impacts on carbon and nutrient dynamics in tropical forest restoration I was Principal Investigator of this Royal Society KC Wong Fellowship project.
Indicators and tools for restoration and sustainable management of closed-deciduous forests in East Africa I was Co-Principal Investigator and Bangor lead of this project funded by the EU (INCO-DEV). The project was led by Dr Clemens Fehr and Dr Timm Tennigkeit (University of Freiburg/UNIQUE Forestry and Land Use GmbH). The other main partners were Professor Frans Bongers and Dr Frank Sterck (Wageningen University).
Biodiversity conservation in ancient church and monastery yards in Ethiopia I was Co-Principal Investigator of this Darwin Initiative project, which was led by Dr Zewge Teklehaimanot. http://darwin.bangor.ac.uk/biodiversity-ethiopia/
Research training to sustain and restore bio-cultural diversity of indigenous sacred sites in Southern Ethiopia I was Principal Investigator of this project funded by The Christensen Fund.
Combining ecological knowledge and socio-economic perspectives in the participatory improvement of multistrata agroforestry systems at the forest margin I was Co-Principal Investigator of this project funded by the DFID Forestry Research Programme, which was led by Dr Fergus Sinclair.
Development and promotion of improved methods for identification, assessment and evaluation of biodiversity for tropical mountain environments I was Principal Investigator of this project funded by the DFID Environment Research Programme.
Documentation of UK holdings of growth and yield, inventory and other data from tropical forests I was Co-Principal Investigator of this project funded by the DFID Forestry Research Programme, which was a collaboration with the Universities of Oxford and Reading.