1996 …2022
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Personal profile

Research Interests

Mutualistic interactions, in which all participants benefit from the relationship, are the main focus of my research interests. Mutualisms are hugely important ecological relationships that play key roles in determining community structure and ecosystem function. Jeff’s research involves field, laboratory and theoretical investigations of the ecology, evolution and conservation of mutualisms, with a particular emphasis on plant-pollinator relationships, plant reproductive biology, and the evolution of flowers. As a member of the Landscape and Biodiversity Research Group at the University of Northampton, research in the U.K., Australia, Africa, Tenerife and South America has been funded by grants totalling over £100,000, including a NERC award of £30,000 in collaboration with Dr Lars Chittka (Queen Mary College, London), and SITA Environmental Trust funding of two PhD scholarships in collaboration with the SITA Centre for Sustainable Wastes Management at the University of Northampton. Currently supervising three research students at the University of Northampton, having supervised five others to completion in the past five years. Involved in research collaborations with colleagues at the following institutions: University of California, Riverside; University of Bayreuth; University of KwaZulu-Natal; University of Cape Town; National Museums of Scotland; Rothamsted Research (formerly IACR Rothamsted).


Current PGRs - 

Mr Chris Mackin – “Evolution of the floral phenotypes of invasive plant species” (current – in collaboration with Dr Maria Clara Castellanos and Prof. Dave Goulson, and funded by, University of Sussex)


Ms Helen Tedds – “Evaluating the exotic pets trade: legal and ethical issues” (current – in collaboration with, and funded by, Moulton College)


Mr Paolo Biella – “Key plant loss in pollination networks and the conservation of hubs” (current - in collaboration with Dr Jan Klecka, and funded by, the Czech Academy of Sciences)


Ms Katia Kouloumprouka-Zacharaki – “Development of hydroponic and LED technologies to optimise production and commercial viability of salad crops” (current – in collaboration with, and funded by, Moulton College)


Ms Luzita Ball – “Urban permaculture and ecosystem services” (current – self funded)


PGRs supervised to completion: 


Dr Kathryn Harrold – “Landscape-scale conservation of pollinating insects in the lowland British countryside” (2018 – funded by The University of Northampton)


Dr Muzafar Hussain Sirohi – “Solitary bee diversity in urban landscapes” (2016 – funded by Shah Abdul Latif University, Khairpur, Pakistan)


Dr André Rodrigo Rech – “Spatio-temporal analysis of the pollination and reproductive biology of species of the Doliocarpoide (Dilleniaceae) clade: convergent evolution to a generalist strategy?” (2015 - funded by CAPES and Santander Universities, based at University of Campinas, Brazil, in collaboration with Professor Marlies Sazima)


Dr Hilary Erenler – “The diversity of pollinators in the gardens of large English country houses” (2013 – funded by the Finnis Scott Foundation)


Dr Md Lutfor Rahman – “The potential of restored landfill sites for biodiversity conservation in the UK” (2010 – funded by SITA Environmental Trust)


Dr Sam Tarrant – “The potential of restored landfill sites to support pollinating insects” (2009 – funded by SITA Environmental Trust)


Dr Stella Watts – “Plant-flower visitor interactions in the Sacred Valley of Perú” (2008 – self funded)


Dr Elizabeth Cant –“Do linear features within the landscape influence pollinator movement and plant gene flow?” (2006 – funded by BBSRC in collaboration with Rothamsted Research)


Dr Paul Clarkson – “The ecology of wood ants in fragmented landscapes” (2005 – self funded)


Dr Ruben Alarcon – “The structure of plant-pollinator interactions in montane meadow environments” (2004 – funded by University of California, Riverside, in collaboration with Professor Nick Waser)


Dr Louise Cranmer – “Pollinator use of linear landscape features” (2004 – funded by University of Northampton)

Teaching Interests

Course leader for BSc (Hons) Biology; Jeff also contributes to the courses BSc Environmental Management, BSc Biological Conservation, BSc Applied Conservation Biology and MSc Environmental Management via teaching on the following modules:

  • ENV1002 – Introduction to Ecology
  • ENV1012 – Diversity and Adaptation
  • ENV1016 – Fundamentals of Environmental Science
  • ENV2002 – Field Module
  • ENV2015/19 – Overseas Field Course
  • ENV2018 – Habitat Ecology and Management
  • ENV2103 – Biogeography
  • ENV3020 – Plants and Their Environment
  • ENV3021 – Biodiversity and Conservation
  • ENV4001/10/11 – Research Project modules
  • ENVM003 – Applied Project in Environmental Management

Education/Academic qualification

PhD, Oxford Brookes University

Bachelor, Oxford Brookes University

Fingerprint Dive into the research topics where Jeff Ollerton is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

pollinating insects Agriculture & Biology
Pollination Medicine & Life Sciences
pollinator Earth & Environmental Sciences
pollination Agriculture & Biology
pollinators Agriculture & Biology
landfill Earth & Environmental Sciences
flowers Agriculture & Biology
pollen Agriculture & Biology

Projects 2012 2022

Research Output 1996 2019

Experimental loss of generalist plants reveals alterations in plant-pollinator interactions and a constrained flexibility of foraging

Biella, P., Akter, A., Ollerton, J., Tarrant, S., Janeček, Š., Klecka, J. & Jersáková, J., 14 May 2019, In : Scientific Reports. 9, p. 7376 13 p., 7376.

Research output: Contribution to JournalArticle

Open Access

Interactions between birds and flowers of Rhododendron spp., and their implications for mountain communities in Nepal

Ollerton, J., Koju, N., Maharjan, S. & Bashyal, B., 30 Dec 2019, In : Plants, People, Planet. 6 p.

Research output: Contribution to JournalArticle

Open Access
sexual reproduction
ecosystem service

Assessment of the response of pollinator abundance to environmental pressures using structured expert elicitation

Barons, M. J., Hanea, A. M., Wright, S. K., Baldock, K. C. R., Wilfert, L., Chandler, D., Datta, S., Fannon, J., Hartfield, C., Lucas, A., Ollerton, J., Potts, S. G. & Carreck, N. L., 20 Oct 2018, In : Journal of Apicultural Research. 57, 5, p. 593-604 12 p.

Research output: Contribution to JournalArticle

Open Access
expert opinion
pollinating insects
ecosystem services
Apis mellifera

British phenological records indicate high diversity and extinction rates among late-summer-flying pollinators

Balfour, N. J., Ollerton, J., Castellanos, M. C. & Ratnieks, F. L. W., 24 Apr 2018, In : Biological Conservation. 222, p. 278-283 6 p.

Research output: Contribution to JournalArticle

Open Access
pollinating insects

Local and regional specialization in plant-pollinator networks

Carstensen, D. W., Trøjelsgaard, K., Ollerton, J. & Morellato, L. P. C., 1 Apr 2018, In : Oikos. 127, 4, p. 531-537 7 p.

Research output: Contribution to JournalArticle

Open Access
network analysis

Plant-Pollinator Networks in the Tropics: A Review

Vizentin-Bugoni, J., Maruyama, P. K., de Souza, C. S., Ollerton, J., Rech, A. R. & Sazima, M., 2018, Ecological Networks in the Tropics. Cham: Springer International Publishing, p. 73-91 19 p. (Ecological Networks in the Tropics).

Research output: Contribution to Book/ReportChapter


Pollinator availability, mating system and variation in flower morphology in a tropical savanna tree

Rech, A. R., Jorge, L. R., Ollerton, J. & Sazima, M., Sep 2018, In : Acta Botanica Brasilica. 32, 3, p. 462-472 11 p.

Research output: Contribution to JournalArticle

mating systems
fruit set

The diversity and evolution of pollination systems in large plant clades: Apocynaceae as a case study

Ollerton, J., Liede-Schumann, S., Endress, M. E., Meve, U., Rech, A. R., Shuttleworth, A., Keller, H. A., Fishbein, M., Alvarado-Cárdenas, L. O., Amorim, F. W., Bernhardt, P., Celep, F., Chirango, Y., Chiriboga-Arroyo, F., Civeyrel, L., Cocucci, A., Cranmer, L., da Silva-Batista, I. C., de Jager, L., Deprá, M. S. & 55 others, Domingos-Melo, A., Dvorsky, C., Agostini, K., Freitas, L., Gaglianone, M. C., Galetto, L., Gilbert, M., González-Ramírez, I., Gorostiague, P., Goyder, D., Hachuy-Filho, L., Heiduk, A., Howard, A., Ionta, G., Islas-Hernández, S. C., Johnson, S. D., Joubert, L., Kaiser-Bunbury, C. N., Kephart, S., Kidyoo, A., Koptur, S., Koschnitzke, C., Lamborn, E., Livshultz, T., Machado, I. C., Marino, S., Mema, L., Mochizuki, K., Morellato, L. P. C., Mrisha, C. K., Muiruri, E. W., Nakahama, N., Nascimento, V. T., Nuttman, C., Oliveira, P. E., Peter, C. I., Punekar, S., Rafferty, N., Rapini, A., Ren, Z-X., Rodríguez-Flores, C. I., Rosero, L., Sakai, S., Sazima, M., Steenhuisen, S-L., Tan, C-W., Torres, C., Trøjelsgaard, K., Ushimaru, A., Vieira, M. F., Wiemer, A. P., Yamashiro, T., Nadia, T., Queiroz, J. & Quirino, Z., 7 Aug 2018, In : Annals of Botany. mcy127

Research output: Contribution to JournalArticle

Open Access
case studies
pollinating insects


Impact on Built Environment (Waterside Campus Design)

Jeff Ollerton (Principal Investigator), Duncan McCollin (Principal Investigator), Janet Jackson (Principal Investigator)

Impact: Environmental impacts, 10: Reduced Inequalities (UN SDG), 15: Life on Land (UN SDG)


Plant-flower visitor interactions in the Sacred Valley of Peru

Author: Watts, S., 2008

Supervisor: Ollerton, J. (Supervisor)

Student thesis: Doctoral Thesis


The diversity of flower-visiting insects in the gardens of English country houses

Author: Erenler, H. E., 2013

Supervisor: Stobart, J. (External person) (Supervisor) & Ollerton, J. (Supervisor)

Student thesis: Doctoral Thesis


The influence of aspect and forest edge effects on the ecology of the wood ant, Formica rufa L. (Hymenoptera: Formicidae)

Author: Clarkson, P. A., 2004

Supervisor: McCollin, D. (Supervisor) & Ollerton, J. (Supervisor)

Student thesis: Doctoral Thesis

The influence of linear landscape features on pollinator behaviour

Author: Cranmer, L., 2004

Supervisor: McCollin, D. (Supervisor) & Ollerton, J. (Supervisor)

Student thesis: Doctoral Thesis

The potential of restored landfill sites for biodiversity conservation in the UK

Author: Rahman, M. D. L., 2010

Supervisor: Ollerton, J. (Supervisor) & McCollin, D. (Supervisor)

Student thesis: Doctoral Thesis

The potential of restored landfill sites to support pollinating insects

Author: Tarrant, S., 2009

Supervisor: Ollerton, J. (Supervisor)

Student thesis: Doctoral Thesis