Groupe d’Étude et de Recherche sur les Primates de Madagascar (GERP)


About us

GERP aims to promote studies and research on lemurs and their habitat in order to preserve them. We also undertake actions for the conservation and management of protected areas in harmony with the well-being of local communities. GERP advocates for good environmental governance and for the application of laws in its field of intervention.

GERP at a glance

GERP, which translates into Malagasy Primatological Study and Research Group in English, is a non-profit organization that was created in 1994. GERP’s objective is to protect lemurs and their habitat for the future generation. The organization is composed of hundreds of Malagasy and foreign members. The World Lemur Festival, which is held in Madagascar and celebrated throughout the world, was started as an initiative of GERP.

Our Work

For 25 years, GERP has worked for the protection of lemurs. They believe that the preservation of these endemic species is the responsibility of everyone and that people protect only what they know. For this reason, education and sensitization are essential parts of GERP’s conservation program. As there is still much to discover and learn about lemurs, GERP carries out continuous research, inventories, and participates in national and international conferences to share findings. 


Furthermore, GERP conducts patrols and forest restoration to preserve its protected areas. They also support local communities through capacity building, community health projects, and income-generating activities like agriculture, breeding, crafts, and tour guides. To achieve its goals, GERP works with many partners, the Malagasy government, local authorities, and surrounding communities.


Our team

Professor Jonah H. Ratsimbazafy

Gerp President

Jonah is the President of GERP, co-Vice Chair – Madagascar section of the IUCN/SSC Primate Specialist Group, and the President of the International Primatological Society. He has published over 200 research papers, review articles, and book chapters and he sits on the editorial boards of 13 international journals. Jonah has won many international awards and prizes including the Disney’s Hero Conservation Award in 2015 and a Lifetime Honorary Fellow award in 2019 from the Council of the Association for Tropical Biology and Conservation (ATBC). 


Technical Coordinator

Graduated from the Higher School of Agronomic Sciences in the Agriculture Department of the University of Antananarivo. He is passionate about and interested in rural development and the protection of the environment. Since 2015, he has been involved with GERP for the conservation of the biodiversity of Manombo Farafangana and the improvement of the well-being of the local population who depends on the forest. 

Noa Diamondra Andrianantoandro

Financial officer

Noa studied Finance and Accounting. Passionate about environmental conservation, she has progressed in this field for 5 years now. She is constantly learning with enthusiasm and conviction to help GERP develop financial stability to maintain its conservation works for lemurs and their habitat.

Andry Rajaonson

Technical coordinator

Andry is the Technical Coordinator for the Maromizaha Protected Area. He received his DEA in Primatology from the Department of Paleontology and Biologic Anthropology at the University of Antananarivo in 2005. Since 2013, his focus has been on ecology and lemur conservation in Madagascar. He has participated in training programs on communal ecotourism, GIS, conservation criminology, as well as participated in the International Conference on Prosimians in 2013. He has authored and co-authored several scientific articles on lemur surveys conducted in the East and South-East of Madagascar.