| Dr. Malik Morjan | Conservation and restoration;, Natural resource management; | |
| Prof. Joe Morris | Agriculture;, Economics (Ecological and environmental economics etc), Science and technology studies; | |
| Prof. Joe Morris | Agriculture;, Economics (Ecological and environmental economics etc), Science and technology studies; | |
| Ms. Paola Mosig Reidl | ||
| Ms. Paola Mosig Reidl | ||
| Mr. Warwick Mostert | Environmental and sustainability sciences;, Ecosystem services;, Conservation and restoration; | |
| Mrs. Mamasheane Motabotabo | ||
| Dr. Ahmim Mourad | Animal diversity;, Conservation and restoration;, Indigenous and local knowledge; | Africa |
| Ms. Charlotte Mousnier | ||
| Ms. Ghada Mueller | ||
| Dr. Nibedita Mukherjee | ||
| Mr. Kanembwa Mukoma | Plant diversity;, Ecosystem services;, Ecology/Species interactions and interrelationships; | |
| Daniel MUKUBIKIKUNI | ||
| Dr. Jana Mullerova | Conservation and restoration;, Ecology/Species interactions and interrelationships; | |
| Prof. Kalemani Mulongoy | Agriculture;, Conservation and restoration;, Ecosystem services; | |
| Mr. Kalemani Jo Mulongoy | Africa | |
| Mr. Kalemani Jo Mulongoy | Africa | |
| Claudia Munera | Conservation and restoration;, Environmental and sustainability sciences;, Policy making; | |
| Mr. Eric Dada Mungatana | Agriculture;, Economics (Ecological and environmental economics etc), Natural resource management; | |
| Dr. Ninad Mungi | Interdisciplinary studies;, Science and technology studies; | |
| Prof. Linus Munishi | Ecology/Species interactions and interrelationships;, Evolution/Extinctions/Genetics and ecology of wild species;, Conservation and restoration; | |
| Mr. Pablo Munoz | ||
| Mr. Pablo Munoz | ||
| Mr. Pablo Munoz | ||
| Ms. Elizabeth Munro | ||
| Ms. Tshifhiwa Munyai | Climate change;, Conservation and restoration;, Terrestrial ecosystems; | |
| Mr. Emmanuel Munyeneh | ||
| Dr. Barbara Muraca | Environmental ethics and philosophy;, Sociology/Environmental sociology and anthropology;, Environmental and sustainability sciences; | |
| Mr. Roldan Muradian | Behaviour and values;, Economics (Ecological and environmental economics etc), Ecosystem services; | |
| Mr. Roldan Muradian | Behaviour and values;, Economics (Ecological and environmental economics etc), Ecosystem services; | |
| Dr. Ranjini Murali | ||
| Mr. Brett Murphy | Asia-Pacific | |
| Mr. Brett Murphy | ||
| Mr. Michael Alan Murray-Hudson | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Scenarios and/or models; | |
| Dr. Maysoun Mustafa | Plant diversity;, Science and technology studies;, Indigenous and local knowledge; | |
| Dr. Nandhivarman Muthu | ||
| Mr. James Mwamodenyi | Conservation and restoration;, Natural resource management; | |
| Dr. Tuyeni Mwampamba | Ecosystem services;, Environmental and sustainability sciences;, Natural resource management; | |
| Dr. Tuyeni Mwampamba | Ecosystem services;, Environmental and sustainability sciences;, Natural resource management; | |
| Ms. Wairimu Mwaura | ||
| Ms. Nidhi Nagabhatla | Ecosystem services;, Natural resource management; | |
| Ms. Nidhi Nagabhatla | Ecosystem services;, Natural resource management; | |
| Dr. Josheena Naggea | ||
| Mr. Udaya Nagothu | Natural resource management;, Interdisciplinary studies;, Agriculture; | |
| Ms. Laura Nahuelhual | Americas | |
| Dr. Nakangu Nakangu | History/Environmental history;, Governance/Political ecology/Political sciences; | |
| Ms. Fumiko Nakao | Law/Environmental policy and law;, Governance/Political ecology/Political sciences;, Natural resource management; | |
| Somanegré Nana | ||
| Ms. Grace Nangendo | ||
| Ms. Guiomar Nates Parra | ||
| Dr. Laetitia Navarro | ||
| Prof. Prateep Nayak | Environmental and sustainability sciences;, Governance/Political ecology/Political sciences; | |
| Mr. Longin Ndayikeza | Ecosystem services;, Ecology/Species interactions and interrelationships; | |
| Mr. Mamadou Ndiaye | Conservation and restoration;, Environmental and sustainability sciences;, Natural resource management; | |
| Dr. Mduduzi Ndlovu | ||
| Mr. Fernando Neda | ||
| Prof. Stoyan Nedkov | Ecosystem services;, Geography;, Interdisciplinary studies; | |
| Mr. Juan Jose Neiff | ||
| Dr. Wendy Nelson | Marine systems;, Plant diversity;, Systematics, taxonomy and phylogenetics; | |
| Dr. Howard Nelson | Ecology/Species interactions and interrelationships;, Natural resource management;, Terrestrial ecosystems; | |
| Dr. Sara Nelson | ||
| Prof. Valerie Nelson | Sociology/Environmental sociology and anthropology;, Natural resource management;, Behaviour and values; | |
| Prof. Valerie Nelson | Sociology/Environmental sociology and anthropology;, Natural resource management;, Behaviour and values; | |
| David Nemecek | Governance/Political ecology/Political sciences;, Environmental and sustainability sciences;, Economics (Ecological and environmental economics etc) | |
| Prof. Gabriel Nemogá | Governance/Political ecology/Political sciences;, Human ecology and cultural ecology;, Indigenous and local knowledge; | |
| Dr. Giuseppe Nerilli | Environmental and sustainability sciences;, Ecosystem services;, Agriculture; | |
| Ms. Jocelyn Nettleton | Indigenous and local knowledge;, Behaviour and values;, Policy making; | |
| Ms. Jocelyn Nettleton | Indigenous and local knowledge;, Behaviour and values;, Policy making; | |
| Ms. Gertrude Ngenda | Environmental and sustainability sciences;, Governance/Political ecology/Political sciences;, Policy making; | Africa |
| Mr. Augustin Ngoliele | ||
| Mr. Jonas NGOUHOUO-POUFOUN | Economics (Ecological and environmental economics etc), Indigenous and local knowledge;, Natural resource management; | Africa |
| Mr. Jonas NGOUHOUO-POUFOUN | Economics (Ecological and environmental economics etc), Indigenous and local knowledge;, Natural resource management; | |
| Mr. Tuan Nguyen | Economics (Ecological and environmental economics etc), Ecology/Species interactions and interrelationships;, Natural resource management; | |
| Mrs. Hoang Thi Thanh Nhan | Conservation and restoration;, Ecosystem services;, Policy making; | |
| Dr. Aidin Niamir | Geography;, Ecology/Species interactions and interrelationships;, Climate change; | |
| Dr. Aidin Niamir | Geography;, Ecology/Species interactions and interrelationships;, Climate change; | |
| Dr. Aidin Niamir | Geography;, Ecology/Species interactions and interrelationships;, Climate change; | |
| Dr. Aidin Niamir | Geography;, Ecology/Species interactions and interrelationships;, Climate change; | |
| Dr. Aidin Niamir | Geography;, Ecology/Species interactions and interrelationships;, Climate change; | Asia-Pacific |
| Mr. Krzysztof Niedzialkowski | ||
| Ms. Tiina Maileena Nieminen | Biogeochemistry;, Ecology/Species interactions and interrelationships;, Land degradation; | |
| Ms. Elena Nikolaeva | ||
| Prof. Karachepone Ninan | Economics (Ecological and environmental economics etc), Ecosystem services;, Terrestrial ecosystems; | |
| Dr. Maiko Nishi | Governance/Political ecology/Political sciences;, Natural resource management;, Behaviour and values; | |
| Prof. Nsalambi Nkongolo | Geography;, Climate change;, Soil science; | |
| Prof. Nsalambi Nkongolo | Geography;, Climate change;, Soil science; | |
| Mr. Ephraim Maduhu Nkonya | ||
| Mr. Ephraim Maduhu Nkonya | ||
| Mr. Athanasius Fuashi Nkwatoh | Conservation and restoration;, Natural resource management; | Africa |
| Mr. Chencho Norbu | ||
| Mr. Raoul Noumonvi | ||
| Mr. Ruslan Novitsky | Ecology/Species interactions and interrelationships;, Natural resource management;, Environmental and sustainability sciences; | |
| Mr. Ruslan Novitsky | Ecology/Species interactions and interrelationships;, Natural resource management;, Environmental and sustainability sciences; | |
| Mr. Ruslan Novitsky | Ecology/Species interactions and interrelationships;, Natural resource management;, Environmental and sustainability sciences; | Europe and Central Asia |
| Mr. Ruslan Novitsky | Ecology/Species interactions and interrelationships;, Natural resource management;, Environmental and sustainability sciences; | |
| Dr. Claire Ntshane | Conservation and restoration;, Ecosystem services;, Environmental and sustainability sciences; | Africa |
| Dr. Phumza Ntshotsho | ||
| Dr. Emmanuel Nuesiri | Governance/Political ecology/Political sciences;, Natural resource management;, Practitioner; | |
| Dr. Martin Nuñez | ||
| Mr. Bernard Nuoleyeng Baatuuwie | Climate change;, Land degradation; | |
| Mr. Francis Nwosu | ||
| Dr. Charity Nyelele | ||
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | |
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | |
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | |
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | |
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | |
| Dr. Dorothy Nyingi | Ecology/Species interactions and interrelationships;, Freshwater ecosystems;, Evolution/Extinctions/Genetics and ecology of wild species; | Africa |
| Dr. Tobias Nyumba | Law/Environmental policy and law;, Governance/Political ecology/Political sciences;, Ecology/Species interactions and interrelationships; | |
| Karen O'Brien | ||
| Karen O'Brien | ||
| Karen O'Brien | ||
| Dr. Michael Oatham | Conservation and restoration;, Ecology/Species interactions and interrelationships;, Natural resource management; | Americas |
| Mr. Thierry Oberdorff | Animal diversity;, Climate change;, Freshwater ecosystems; | |
| Mr. Thierry Oberdorff | Animal diversity;, Climate change;, Freshwater ecosystems; | |
| Ms. Gabriele Obermayr | ||
| Mr. Michael Obersteiner | ||
| Mr. Santiago Obispo | Indigenous and local knowledge;, Indigenous and local knowledge;, Indigenous and local knowledge; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. David Obura | Climate change;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Dr. Patrick OFarrell | Ecosystem services;, Behaviour and values;, Land and sea use; | |
| Dr. Patrick OFarrell | Ecosystem services;, Behaviour and values;, Land and sea use; | |
| Dr. Patrick OFarrell | Ecosystem services;, Behaviour and values;, Land and sea use; | Africa |
| Dr. Patrick OFarrell | Ecosystem services;, Behaviour and values;, Land and sea use; | |
| Prof. Zenda Ofir | ||
| Mr. Dusan Ognjanovic | ||
| Prof. Nicholas Oguge | Environmental and sustainability sciences;, Natural resource management; | |
| Prof. Nicholas Oguge | Environmental and sustainability sciences;, Natural resource management; | Africa |
| Mr. Oladele Ogunseitan | Environmental and sustainability sciences;, Microbial biodiversity; | |
| Dr. Haruka Ohashi | ||
| Mr. Masakatsu Ohyama | ||
| Dr. Soile Oinonen | Economics (Ecological and environmental economics etc), Ecosystem services;, Interdisciplinary studies; | |
| Prof. Henn Ojaveer | Marine systems;, Ecology/Species interactions and interrelationships; | |
| Dr. Diana Ojeda | Governance/Political ecology/Political sciences;, Geography;, Sociology/Environmental sociology and anthropology; | |
| Ms. Joyce Ojino | Environmental and sustainability sciences;, Law/Environmental policy and law;, Pollution; | Africa |
| Dr. Kimiko Okabe | Animal diversity;, Ecology/Species interactions and interrelationships;, Health (public health, academic and non-academic, national and international); | Asia-Pacific |
| Ms. Sana Okayasu | Ecosystem services;, Interdisciplinary studies;, Conservation and restoration; | |
| Dr. Satoru Okubo | Agriculture;, Human ecology and cultural ecology;, Interdisciplinary studies; | |
| Dr. Satoru Okubo | Agriculture;, Human ecology and cultural ecology;, Interdisciplinary studies; | Asia-Pacific |
| Dr. Toshiya Okuro | Conservation and restoration;, Ecology/Species interactions and interrelationships;, Land degradation; | |
| Ms. Lydia Olander | ||
| Dr. Emmanuel Olatunji | Natural resource management;, Geography;, Climate change; | |
| Teresia Olemako | Natural resource management;, Conservation and restoration;, Freshwater ecosystems; | |
| Dr. Bishwa Nath Oli | Natural resource management;, Policy making;, Climate change; | |
| Dr. Bishwa Nath Oli | Natural resource management;, Policy making;, Climate change; | |
| Dr. Bishwa Nath Oli | Natural resource management;, Policy making;, Climate change; | |
| Dr. Bishwa Nath Oli | Natural resource management;, Policy making;, Climate change; | |
| Mr. Roberto Oliva | ||
| Mr. Bruno Oliveira | ||
| Mr. Bruno Oliveira | ||
| Prof. Roland Olschewski | Economics (Ecological and environmental economics etc), Law/Environmental policy and law; | Europe and Central Asia |
| Prof. Gunilla Almered Olsson | Environmental and sustainability sciences;, Human ecology and cultural ecology;, Natural resource management; | |
| Prof. Gunilla Almered Olsson | Environmental and sustainability sciences;, Human ecology and cultural ecology;, Natural resource management; | Europe and Central Asia |
| Dr. Karim Omar | Conservation and restoration;, Ecology/Species interactions and interrelationships;, Natural resource management; | Africa |
| Mr. Benedict Omare | Law/Environmental policy and law;, Agriculture; | |
| Mr. Benedict Omare | Law/Environmental policy and law;, Agriculture; | |
| Mr. Jean Pierre Ometto | Americas | |
| Jean Ometto | Biogeochemistry;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Mr. Jean Pierre Ometto | ||
| Jean Ometto | Biogeochemistry;, Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences; | |
| Mr. Joseph Ongol | Ecology/Species interactions and interrelationships;, Natural resource management;, Law/Environmental policy and law; | |
| Mr. Paul Ongugo | ||
| Ms. Yuko Onishi | Asia-Pacific | |
| Mr. Ayumi Onuma | Asia-Pacific | |
| Dr. Aliye Ceren Onur | ||
| Prof. Chioma Onyige | Contribution to IPCC (past or on-going);, Indigenous and local knowledge;, Sociology/Environmental sociology and anthropology; | Africa |
| Prof. Chioma Onyige | Contribution to IPCC (past or on-going);, Indigenous and local knowledge;, Sociology/Environmental sociology and anthropology; | |
| Prof. Chioma Onyige | Contribution to IPCC (past or on-going);, Indigenous and local knowledge;, Sociology/Environmental sociology and anthropology; | |
| Prof. Lars Opgenoorth | Ecology/Species interactions and interrelationships;, Evolution/Extinctions/Genetics and ecology of wild species;, Terrestrial ecosystems; | Asia-Pacific |
| Dr. Alejandro Ordonez | Ecology/Species interactions and interrelationships;, Environmental and sustainability sciences;, Plant diversity; | |
| Dr. Aleajandro Ordonez | Invasive Alien Species;, Climate change;, Terrestrial ecosystems; | |
| Mr. Claude Origer | ||
| Dr. Philip Osano | Agriculture;, Ecosystem services;, Geography; | |
| Dr. Odipo Osano | Ecology/Species interactions and interrelationships;, Freshwater ecosystems; | Africa |
| Dr. Isimemen Osemwegie | Environmental and sustainability sciences;, Interdisciplinary studies;, Natural resource management; | |
| Ms. Elena Osipova | Europe and Central Asia | |
| Dr. Balgis Osman Elasha | Climate change;, Contribution to IPCC (past or on-going);, Ecosystem services; | |
| Dr. Balgis Osman Elasha | Climate change;, Contribution to IPCC (past or on-going);, Ecosystem services; | Africa |
| Dr. Oluwakemi Osunderu | Ecosystem services;, Policy making;, Natural resource management; | |
| Prof. Alfred Oteng-Yeboah | Plant diversity;, Systematics, taxonomy and phylogenetics;, Terrestrial ecosystems; | Africa |
| Prof. Alfred Oteng-Yeboah | Plant diversity;, Systematics, taxonomy and phylogenetics;, Terrestrial ecosystems; | |
| Prof. Alfred Oteng-Yeboah | Plant diversity;, Systematics, taxonomy and phylogenetics;, Terrestrial ecosystems; | |
| Prof. Alfred Oteng-Yeboah | Plant diversity;, Systematics, taxonomy and phylogenetics;, Terrestrial ecosystems; | |
| Prof. Alfred Oteng-Yeboah | Plant diversity;, Systematics, taxonomy and phylogenetics;, Terrestrial ecosystems; | |
| Dr. Iago Otero | ||
| Dr. Elisa Oteros-Rozas | Europe and Central Asia | |
| Dr. Merit Otsus | Ecology/Species interactions and interrelationships;, Plant diversity;, Terrestrial ecosystems; | |
| Siaka OULARE | ||
| Mr. Gerhard Overbeck | Conservation and restoration;, Ecology/Species interactions and interrelationships; | Americas |
| Mr. GEORGE OWOYESIGIRE | Law/Environmental policy and law;, Conservation and restoration;, Ecology/Species interactions and interrelationships; | |
| Dr. Margaret Owuor | Ecosystem services;, Conservation and restoration;, Marine systems; | |
| Mr. Phil René Oyono | Africa | |
| Prof. Begum Ozkaynak Ortakoyluoglu | ||
| Mr. Bayram Öztürk | Invasive Alien Species;, Marine systems; | |
| Mr. Bayram Öztürk | Invasive Alien Species;, Marine systems; | |
| Dr. Andrea Pacheco | Environmental and sustainability sciences;, Economics (Ecological and environmental economics etc), Governance/Political ecology/Political sciences; |