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Daegan Inward

BSc, MSc, PhD

Home Staff Daegan Inward

Research Entomologist

Strategic research on the ecology and life history of new & emerging forest pests, in particular bark- and wood-boring beetles, and the risks they pose to British forests. Investigation into the susceptibility of UK woodlands to invasion by exotic insects, and research into the impacts of climate change on forest insect life cycles, distribution and pest status.

Daegan joined Forest Research in 2006, following a post-doctoral role at the Natural History Museum, London, where he studied the evolutionary ecology and phylogenetics of termites and cockroaches. He also completed his PhD on dung beetle evolution and an MSc at the museum, in association with Imperial College, and has worked in southern Africa, Central and South America, and Madagascar.


  • Fellow of the Royal Entomological Society
Research Entomologist
Tree health

Alice Holt

Alice Holt Lodge




Related Research



Neurostresspep explores the use of insect neuropeptide hormones for controlling pest insects; Forest Research is investigating whether these naturally occurring compounds can be used in forest management to reduce damage by pine weevil (Hylobius abietis).

Status current

Other Research

Susceptibility of UK forests to invasion by exotic bark beetles
Project Leader.

Conducting a UK-wide inventory of bark beetles in key forest types. Researching the factors which influence the successful establishment of exotic bark beetle species, and consideration of risks posed by invasive species. Determination of the fungal associates of UK bark beetle communities, and the potential for transmission of tree-pathogenic fungi by beetle vectors (with Imperial College London).

The role of Agrilus biguttatus in Acute Oak Decline, and mechanisms of spread of the AOD bacteria
Project Leader, PhD Supervisor

A PhD research project on the ecology and development of the two-spotted oak borer, Agrilus biguttatus, which commonly occurs in association with the Acute Oak Decline disease. Novel life history data is being used to model this cryptic beetles’ distribution in the UK, and potential future impacts of climate change. We are also investigating how & when oak trees become susceptible to attack from the beetle. A new PhD will explore potential methods of spread between trees of the lesion-forming AOD bacteria.

nEUROSTRESSPEP, Novel biocontrol agents for insect pests from neuroendocrinology
Principle Investigator

An international consortium project to develop ‘greener’ biocontrol tools for pests of agriculture, horticulture and forestry, exploiting specific neuropeptide signalling hormones. Our detailed work on the life cycles of some key forest pests, and FR’s experience in forest trials, will be utilised to take this ground-breaking work from the laboratory to the field, and to address end-user needs in the forestry sector.

Pests and pathogens in a changing environment
Investigating the likely impact of climate change upon the life cycle, ecology, distribution and pest status of some key forest insects.

Peer reviewed journal articles

Wainhouse, D. and Inward, D.J.G. 2016. The influence of climate change on forest insect pests in Britain.Forestry Commission Research Note, 10pp.

Miller K.E., Hopkins K., Inward D.J. and Vogler A.P. 2016, Metabarcoding of fungal communities associated with bark beetles. Ecology and Evolution, doi: 10.1002/ece3.1925.

Brown, N., Inward, D.J.G., Jeger, M. and Denman, S. (2015) The role of Agrilus biguttatus in Acute Oak Decline: its relationship with oak and its status in BritainForestry, 88: 53-63.

Vuts, J., Woodcock, C.M., Sumner, M.E., Caulfield, J.C., Reed, K., Inward, D.J., Leather, S.R., Pickett, J.A., Birkett, M.A. and Denman, S., (2015) Responses of the two-spotted oak buprestid, Agrilus biguttatus (Coleoptera: Buprestidae), to host tree volatiles. Pestmanagement science. DOI 10.1002/ps.4208

Straw, N.A., Fielding, N.J., Tilbury, C., Williams, D.T. and Inward, D. (2014) Host preferences and resource utilisation by Asian Longhorn beetle Anoplophora glabripennis (Coleoptera: Cerambycidae) in southern England. Forestry, doi:10.1093/forestry/cpu037

Wainhouse, D., Inward, D.J.G., and Morgan, G. (2014) Modelling geographical variation in voltinism of Hylobius abietis under climate change and implications for management. Agricultural and Forest Entomology, 16: 136-146.

Inward, D.J.G., Wainhouse, D. and Peace, A. (2012). The effect of temperature on development and life cycle regulation of the pine weevil Hylobius abietis, and the potential impacts of climate change (PDF-775K). Agricultural and Forest Entomology, 14: 348–357.

Inward, D.J.G., Davies, R.G., Pergande, C., Denham, A.J. and Vogler, A.P. (2011). Local and regional ecological morphology of dung beetle assemblages across four biogeographic regions. Journal of Biogeography. 38: 1668-1682.

EPPO (Fassotte, C., Inward, D., Haack, R., Herms, D., Sansford, C., Suffert, M. and Orlinski, A.) (2011) Pest risk analysis for Agrilus anxius. European and Mediterranean Plant Protection Organization. 11-16987 (11-16988).

Monaghan, M.T., Wild, R., Elliott, M., Fujisawa, T., Balke, M., Inward, D.J.G., Lees, D., Ranaivosolo, R., Eggleton, P., Barraclough, T. and Vogler, A.P. (2009). Accelerated species inventory on Madagascar using coalescent-based models of species delineation. Systematic Biology. 58: 298-311.

Inward, D., Beccaloni, G. and Eggleton, P. (2007). Death of an order: a comprehensive molecular phylogenetic study confirms that termites are eusocial cockroaches. Biology Letters. 3 (3): 331-335.

Inward, D.J.G., Vogler, A.P. and Eggleton, P. (2007). A comprehensive phylogenetic analysis of termites (Isoptera) illuminates key aspects of their evolutionary biology. Molecular Phylogenetics and Evolution. 44: 953-967.

Monaghan, M.T., Inward, D.J.G., Hunt, T. and Vogler, A.P. (2007). A molecular phylogenetic analysis of the Scarabaeinae (dung beetles). Molecular Phylogenetics and Evolution. 45 (2): 674-692.

Scholtz, C.H., Inward, D.J.G. and Kerley, M.D. (2007). Description of a new Palaearctic Trox Fabricius species (ColeopteraTrogidae) from Thailand, with a review of the Trox opacotuberculatus species-group and its biogeography. Insect Systematics and Evolution. 38: 93-103.

Eggleton, P., Beccaloni, G. and Inward, D.J.G. (2007). Response to Lo et al. Biology Letters. 3: 564-565.

Gathorne-Hardy, F.J., Syaukani and Inward, D.J.G. (2006). Recovery of termite (Isoptera) assemblage structure from shifting cultivation in Barito Ulu, Kalimantan, Indonesia. Journal of Tropical Ecology. 22: 605-608.