The Primate Society Medals

PSGB awards four medals: the Osman Hill Memorial Medal, the Napier Memorial Medal, the PSGB Occasional Medal and the Charles A. Lockwood Medal. PSGB also gives out the Cyril Rosen and Ardith Eudey Awards through the Conservation Working Party, and awards a prize for the best student poster presentation at the Spring Meetings. In addition, the winter conference hosts the Folia Primatologica AH Schultz Best Paper Award on a biannual basis.


 Osman Hill Memorial Medal 

PSGB established the Osman Hill Memorial Lectures in 1977, to commemorate the influential anatomist and primatologist, who died in 1975. The lecturer, who also receives a medal, must be a distinguished primatologist, with the lecture given as part of the programme of a meeting. The lectures are given at intervals of one year or more.  

Click here for more information on how to nominate the 2021 Osman Hill Memorial Lecturer

Osman Hill Memorial Lecturers:

  • 1978  M.H. Day - Human evolution: fossils and concepts
  • 1980  R.A. Hinde - Primatology and the social sciences
  • 1982  F. Bourliere - The niches of primates within tropical rain-forest
  • 1984  P.M. Butler - Problems of dental evolution in the higher primates
  • 1986  J.P. Hearn - Early embryonic development in monkeys and man
  • 1988  H. Kummer - Exploring primate social cognition: where do we stand?
  • 1990  R.D. Martin - Goeldi and the dwarves: evolutionary biology of the small New World monkeys
  • 1992  J.H. Crook - Ecology and culture in the adaptive radiation of Tibetan-speaking peoples in the Himalayas
  • 1994  R.I.M. Dunbar - A general theory of primate social systems
  • 1996  T. Rowell - The myth of peculiar primates
  • 1998  C.B. Stringer - The origin of our species
  • 2000  A.F. Dixson - Primate comparative anatomy and the evolution of reproduction
  • 2002  I. Tattersall - Becoming human
  • 2004  C. van Schaik - Correlated evolution between cognitive and cultural abilities
  • 2006  A. Jolly - Survival in a forest fragment: Ringtailed lemurs of Berenty
  • 2008  W.C. McGrew - Chasing chimpanzee culture
  • 2010  A. Whiten - Cultural elements in a chimpanzee community (Goodall, 1973) 37 years on
  • 2012 S. Bearder - Primate Taxonomy in the Field: New insights into Biodiversity, Biogeography and Phylogeny
  • 2013 P. Lee - Reproductive costs and social evolution in primates and other mammals
  • 2014 R. Crompton - A very conservative tribe: The Hominins
  • 2016 C. Groves - Life Mysteries of Primate Diversity
  • 2018 R. Barton - Brains growing on the tree of life: the what, when, how and why of primate brain evolution
  • 2019 H. Buchanan-Smith - Promoting Primate Wefare - Past, Present and Future


Napier Memorial Medal

Following a bequest to the Society, PSGB instituted the Napier Memorial Medal in 1991, in memory of its founding President, Professor John Napier. The medal is offered every two years to a new primatologist to provide encouragement through the public recognition of their work. Many Napier Medal winners have become successful primatologists.

Napier Memorial Medal Recipients:

  • 1991 Christopher Pryce - Endocrine and social correlates of maternal behaviour in callitrichids
  • 1993 Marta Lahr - The origins of modem humans: A test of the multiregional hypothesis
  • 1995 Carlos Drews - Psychological warfare and the management of relationships between male baboons
  • 1997 Nicola Koyama - Reconciliation behaviour in wild Japanese macaques
  • 1999 Mark Collard - Morphological evolution of the hominoids and papionins: implications for palaeoanthropological cladistics
  • 2001 Russell Hill - Ecological and demographic determinants of time budgets in baboons: implications for cross-population models of baboon socioecology
  • 2003 Susanne Shultz - Of monkeys and eagles: predator-prey interactions in the Taï National Park, Côte d'Ivoire
  • 2005 Corri Waitt - Facial attractiveness among rhesus macaques (Macaca mulatta): manipulating and measuring preferences for conspecifics' facial characteristics.
  • 2007 Annika Paukner - Secondary representational abilities in nonhuman primates (Macaca nemestrina, Cebus apella).
  • 2009 Erik Willems - From space to species - integrating remotely sensed information on primary productivity into investigations and systems models of vervet monkey (Cercopithecus aethiops) socio-ecology.
  • 2011 Lauren Brent - Investigating the causes and consequences of sociality in adult female rhesus macaques using a social network approach.
  • 2013 Stephen Montgomery - The primate brain: evolutionary history and genetics
  • 2015 Sally Street - Phylogenetic comparative investigations of sexual selection and cognitive evolution in primates
  • 2017 Ciara StaffordImpacts of Indigenous Communities on the Biodiversity of Neotropical Rainforests


PSGB Occasional Medal

The PSGB Occasional Medals were established in 1996 and are awarded occasionally to celebrate exceptional achievement in primatology.

Occasional Medal Recipients:

  • 1996 Jane Goodall: Cultural transmission among chimpanzees and conservation (Conservation Medal)
  • 2007 Cyril Rosen: Conservation Medal
  • 2008 Stephen Nash: Special Contributions to Primatology
  • 2011 David Windmill: Special Contributions to Primatology
  • 2011 David J. Chivers: Conservation
  • 2017 John Oates: Conservation
  • 2019 Caroline Harcourt: Special Contributions to Primatology and the Society


Charles A. Lockwood Prize 

The Charles A. Lockwood Prize and associated medal for the best proffered student podium (spoken) presentation at a Society meeting were established in 2009. The prize and medal commemorate Charlie Lockwood, a PSGB Council member who died tragically in a motorcycle accident during 2008, and celebrate the thought, dedication and inspiration he provided to his students. One of those students, Katharine Balolia, then PSGB Student Representative, led a fundraising drive to establish the prize and pay for the casting of the medal, which was designed by Katharine’s brother Yello Balolia using an original illustration by John Sibbick.

Charles A. Lockwood Medal recipients:

  • 2009 Claire Santorelli - Vocal traditions in communities of wild spider monkeys
  • 2010 Steven Montgomary - What role do microcephaly genes play in primate brain evolution?
  • 2011 Nienke Alberts - Troop differences in patterns of spatial association and social interactions in olive baboons (Papio hamadryas anubis) in Gashaka-Gumti National Park, Nigeria
  • 2012 Nienke Alberts - Quantifying fission-fusion dynamics: a case study of wild olive baboons.
  • 2013 Sally Street - Are exaggerated sexual swellings in the Old World primates honest signals of fertility and quality?
  • 2014 Hayley Ash - Breeding common marmosets: Impact on longevity, behaviour and development
  • 2015 Jamie Whitehouse - Barbary macaques' responses to conspecifics’ self-directed behaviours
  • 2016 Camille Troisi - Food offering calls and their implications for teaching behaviour in wild golden lion tamarins (Leontopithecus rosalia)
  • 2017 Grace Ellison - The behaviour and ecology of a nocturnal primate, Galago senegalensis, in Northern Tanzania
  • 2018 Robin Morrison: Multi-level society in western lowland gorillas 

Ymke Warren Memorial Award 

CWP used to coordinate the award of an annual grant of £750 in memory of Ymke Warren who was killed while working in Cameroon on the conservation of the critically endangered Cross River gorilla. The grant is intended for early career gorilla researchers and conservationists from gorilla range state countries. Now anyone interested in applying for this grant should contact The Gorilla Organisation

Ymke Warren Memorial Award Recipients:

Cyril Rosen Award 

Cyril Rosen was a long-time member of PSGB and CWP.  His nephew, Howard Rosen, has kindly agreed to donate £1000 each year in his memory.  This grant will go to a person selected by the CWP from all the applications submitted each February.  There are no stipulations for this award. 

Cyril Rosen Award Recipients:

  • 2015 Sian Waters from Barbary Macaque Awareness & Conservation
  • 2016 Nicholas James to work on Tonkin snub-nosed monkeys
  • 2017 Marina Ramon Gorina to work on chimps and humans in Senegal
  • 2018 Anne Sophie Crunchant to work on chimpanzees in Tanzania
  • 2019 James Parsons to work on howler monkeys in Belize

Student poster presentation prize winners:

  • 2009 - Emma Nelson, University of Liverpool: Using digit ratios (2D:4D) to predict the social systems of extinct hominids
  • 2010 - Cristiane Casar, University of St. Andrews: Predator alarm calls in wild black-fronted titi monkeys Callicebus nigrifrons
  • 2011 - Hannah Jones, University of Chester: An assessment of the use of bouts and frequencies to measure lateralised hand use in naturalistically-housed chimpanzees
  • 2012 - Emma Wallace, Roehampton University: The effect of non-naturalistic auditory enrichment on the welfare of Moloch gibbons (Hylobates moloch).
  • 2013 - Sandra Molesti, University of Lincoln: Testing the role of direct, indirect and generalised reciprocity in grooming exchanges of wild Barbary macaques
  • 2014 - Josie Phillips, University of West of England: The use of sleeping sites by slow lorises
  • 2015 - Siobhan Webster, Oxford Brookes: Recent trends in perception of threatened slow lorises (Nycticebus spp.) on Web 2.0 site YouTube and implications for social media reporting policies
  • 2016 - Marie-Claire Pagano, How does male-infant handling affect the mother in Barbary macaques (Macaca sylvanus)?
  • 2017 - Giang Cao, First assessment of genetic diversity of the Con Son long-tailed macaques (Macaca fascicularis condorensis) populations
  • 2018 - Sarah E. DeTRoy: The times they are a-changin: The development of social tolerance in four chimpanzee groups over seven years


Charles A. Lockwood Memorial PSGB Grants

Thanks to a generous bequest from the Lockwood family, a special one-off research grant scheme, the Charles A. Lockwood Memorial PSGB Grant, was also funded in 2010.

Grants were awarded to :

  • Graham L Banes, University of Cambridge: ‘Factors influencing male orangutan reproductive success’
  • Conrad Brimacombe, University of Sheffield: ‘Growth and development in the genus Pan: a life history approach’
  • Laura Buck, Roehampton University: ‘Craniofacial morphology, paranasal sinuses and adaptation in Pleistocene hominins’
  • Camille Coudrat, Oxford Brookes University: ‘Ecology of the red-shanked douc monkey in Nakai Nam Theun National Protected Area, central-eastern Laos’
  • Blake Morton, University of Stirling: ‘Inter-individual differences in cognitive ability and social networking strategies in brown capuchin monkeys’
  • Caroline Phillips, University of Cambridge: ‘Chimpanzee diet: pyrosequencing DNA from faeces’
  • Isabelle Winder, University of York: ‘Linking primate foot anatomy, ecology and landscape use’
  • Rebecca Wyper, University of Stirling: ‘Ecological drivers of macaque crop raiding in Buton, Indonesia: human responses and implications for conservation’ 


In addition to PSGB's own medal and awards, the winter meeting sees the presentation of the Folia Primatologica AH Schulz Best Paper Award. This is a biannual prize (£300) awarded for the best article in Folia Primatologica. Editors of Folia Primatologica judge the article using a combination of citations, impact and quality. The first author/corresponding author of the winning article will usually be given the opportunity to present their research at the PSGB winter meeting.