Senior Research Ecologist

Jenni is an experienced population and spatial modeller who joined the Framing Futures team after completing a NERC-funded postdoc entitled ‘Explaining and Predicting the Migration and Phenology of European-African Migratory Birds’ undertaken in collaboration with Durham University.
Jenni’s research focuses on African-Eurasian migratory birds and has involved collating an extensive set of tracking, ringing and observation data on trans-Saharan migrant songbirds from Europe and Africa, and using large-scale spatiotemporal modelling techniques to look at changes in phenology, distributions and weights of a large number of species over space and time.
In her previous four years as a Spatial Ecologist at BTO, Jenni worked on a wide range of projects, primarily centred around large datasets and modelling distributions and trends. These included:
- predictive modelling of bats’ spatial sensitivity to urbanisation and opportunities for birds and bats from habitat restoration;
- assessing gaps in survey coverage at a UK level for birds, bats, butterflies and plants;
- investigating the likelihood of non-native species invading the UK;
- modelling breeding phenology in farmland birds;
- modelling spatiotemporal change in UK bird trends;
- determining cuckoo use of protected areas and determining drivers of change in moorland breeding bird populations.
Before joining BTO, Jenni was involved in research such as determining population limitations in a lowland grassland migrant (the Whinchat), tagging and tracking seabirds and eradicating the invasive myna birds in the Seychelles.
2012-2015 - PhD, Lancaster University, “Determinants of survival, productivity and recruitment in a declining migrant bird, the whinchat, Saxicola rubetra”.
2005-2009 - BSc Honours Ecology and Conservation, University of St Andrews.
Recent BTO Publications
- Border, J.A., Pearce-Higgins, J.W., Hewson, C., Howard, C., Stephens, P.A., Willis, S.G., Fuller, R.A., Hanson, J.O., Sierdsema, H., Foppen, R.B.P., Brotons, L., Gargallo, G. & Baillie, S.R. Evaluating protected area coverage for migratory bird species across space and time 10.1038/s41467-025-57019-x View at journal website( DOI:10.1038/s41467-025-57019-x )
- Border, J.A., Boersch-Supan, P., Pearce-Higgins, J.W., Hewson, C., Howard, C., Stephens, P.A., Willis, S.G., Houston, A., Gargallo, G. & Baillie, S.R. Spatial variation in spring arrival patterns of Afro-Palearctic bird migration across Europe 10.1111/geb.13850 View at journal website( DOI:10.1111/geb.13850 )
- Barton, M.G., Henderson, I., Border, J.A. & Siriwardena, G.M. A review of the impacts of air pollution on terrestrial birds 10.1016/j.scitotenv.2023.162136 View at journal website( DOI:10.1016/j.scitotenv.2023.162136 )
- Sharps, E., Hawkes, R., Bladon, A., Buckingham, D., Border, J., Morris, A., Grice, P. & Peach, W. Reversing declines in farmland birds: how much agri-environment provision is needed at farm and landscapes scales? 10.1111/1365-2664.14338 View at journal website( DOI:10.1111/1365-2664.14338 )