Herbert Prins

Summary of curriculum vitae

Summary of Curriculum Vitae H.H.T. Prins

Family name: PRINS

First names: Herbert Henri Théodore

Year of birth: 1953

At present he is full professor in Resource Ecology, Wageningen University, the Netherlands, since 1991.

He has represented The Netherlands and the European Union at meetings of the Convention on Biological Diversity. Additionally he has or had board memberships of the (European) Tropical Biology Association, (Executive) Netherlands Nature Conservancy ("Natuurmonumenten", 960,000 members), Van Tienhoven Foundation, Netherlands Committee for International Nature Conservation and others. He is on the editorial boards of two scientific journals. He is and has been member of a number of scientific juries. His previous positions were research fellow of the Royal Netherlands Academy of Arts and Sciences while conducting research in Tanzania, parks research management specialist for the World Bank in Indonesia, and research fellow for the Netherlands Foundation for the Advancement of Tropical research (WOTRO) in Tanzania.

He is member of the IUCN Species Survival Commission, Netherlands Committee IUCN, Member IUCN Committee on Ecosystem Management, IUCN Asian Cattle specialist group, and the Machakos Wildlife Forum, Kenya. He has conducted consultancies in Indonesia, Kenya, Tanzania, Zambia, Mozambique, and Canada. He is Officer in the Order of the Golden Ark (bestowed by HRH Prince Bernhard) and Officer in the Order of Oranje Nassau (bestowed by HM the Queen).

He is author or co-author of 275 scientific publications, 30 popular scientific publications, and 30 reports. He has co-edited 5 books, and written 1 book. Twenty-five PhD students are being tutored, most of them working in tropical countries. Eighty-five students already received their doctorate after his supervision.

Furthermore 4 BBC films and 1 National Geographic film were based on Prins’ fieldwork.

Publication output

Publications are listed under the following sections:

(1) books (N = 10)
(2) special issues of scientific journals
(N = 5)
(3) double-refereed scientific papers
(N = 270)
(4) chapters in book (often refereed too)
(N = 47)
(5) reports
(N = 33)
(6) popular scientific papers
(N = 30)

My research focus

My research focus

Prins’ research focuses on understanding herbivory in a spatial context. He showed how food plants react to grazing [2,3], and how wild herbivores can gear their revisitation interval to the regrowth speed of their resource [2,3]. Because the home range of grazing herbivores encompasses many localities where grazing lawns are maintained by grazing [3], herbivores have to move between these localities so as to be able to optimally use this regrowth [3,4,5]. Many grazing wild herbivores occur in groups, which are often large to very large. Prins showed that the evolution of a high degree of sociality in these graminivorous herbivores could be expected because of the mutual benefits group members have of social grazing [3,6,7]. One of the pivotal questions in his work is to discover how herbivores move through the terrain, often in areas where many predators lurk [8,9,10,11] and where keeping contact is difficult [3], and reach collective decisions about where to graze. His work on social decision-making (termed "voting") in African buffalo is well known [3,7]. Spatial ecology, especially in a savanna context, thus became his hallmark [12,13] and he developed a successful model to explain the long-distance migration of wildebeest in Tanzania [14].

In his work he came to realise that the relation between grass growth and environmental factors [1], such as rainfall, are crucial to understand the trophic interaction between herbage and herbivore [6,15,16]. He thus set up a large scale WOTRO-funded project ("Fundamentals of African Rangelands Economies, FLARE") in which he guided a series of studies to investigate the relation between run-on, run-off and herbage production. The research of FLARE was focused on the mechanisms causing the change of grassy vegetation into bare soil or into woody vegetation, in both cases leading to a decline of revenues in pastoral economies [17,18]. The FLARE-team discovered that loss of water and nutrients by erosion caused by overgrazing at one place might lead to concentration of these resources at other places [18,19]. It was surprising to see that there are conditions of rainfall where the vegetation can still exist when organised in patches, where no vegetation is predicted when the spatial redistribution of resources is not considered [19,20,21]. This effect, however, strongly depends on soil type and the scale of livestock movement in these systems [22]. Further, they studied the effects of grazing and fire on the tree and grass cover in savannas [23]. They came up with a model that shows that grazing and fire are the main mechanisms causing a sudden increase in woody cover.

Prins then decided to refocus his work on herbivore assemblage structure [3,24,25] into work with a more fundamental approach, concentrating on the relationship between herbage mass and food intake. This led to a paper explaining the co-existence rules of the ninety-odd large grazing herbivores in Africa [26], which than was extrapolated to a world-wide prediction on grazer hotspots on all continents [27].

Prins ensures that his work is closely linked to societal issues as nature conservation, poverty alleviation and sustainable use of resources [28]. He was the lead author of the so-named "Principles of the Ecosystem Approach" [29], which was adopted by all 170-odd nations of the Convention on Biological Diversity, and presently he is preparing for the same Convention principles and criteria for the sustainable use of the components of biological diversity.

For the research themes that he is guiding, see Research line and history.

[1-29] Papers referred to 'My Research Focus' see below

Relation to current research activities

Papers referred to my research focus

Papers referred to my research focus

Papers referred to the Research Focus of H.H.T. Prins

Pdf files may not be downloaded for commercial purposes, only single copies for personal use are allowed.

1 - Sankaran, M., Hanan, N.P., Scholes, R.J., Ludwig, F., & Prins, H.H.T. (2005). Determinants of woody cover in African savannas. Nature, 438, 846-849. [pdf]

2 - Prins, H.H.T., R.C. Ydenberg & R.H. Drent (1980). The interaction of brent geese (Branta bernicla) and sea plantain (Plantago maritima) during spring staging: field observations and experiments. Acta Botanica Neerlandica 29 : 585 - 596. [pdf]

3 - Prins, H.H.T. (1996). Behaviour and Ecology of the African Buffalo: Social inequality and decision making. Chapman & Hall, London.

4 - Prins, H.H.T. & R.C. Ydenberg (1985). Vegetation growth and a seasonal habitat shift of the barnacle goose (Branta leucopsis). Oecologia 66 : 122 - 125. [pdf]

5 - Ydenberg, R.C. & H.H.T. Prins (1981). Spring grazing and the manipulation of food quality by barnacle geese. Journal of Applied Ecology 18 : 443 - 453. [pdf]

6 - Boer, de, W.F. & H.H.T. Prins (1989). Decisions of cattle herdsmen in Burkina Faso and optimal foraging models. Human Ecology 17 : 445 - 464. [pdf]

7 - Drent, R.H. & H.H.T. Prins (1987). The herbivore as prisoner of its food supply. In: J. van Andel, J. Bakker & R.W. Snaydon (eds). Disturbance in grasslands; species and population responses. Dr. W. Junk Publishing Company, Dordrecht, p. 133 - 149. [pdf]

8 - Prins, H.H.T. & G. Iason (1989). Dangerous lions and nonchalant buffalo. Behaviour 108 : 262 - 296. [pdf]

9 - see the 55 minutes feature film "The African boss" made by Partridge Nature Films Ltd (Bristol, UK, 2000) for BBC with director Clive Bromhall based on Prins’ field work.

10 - see the 55 minutes feature film "Savannah" made by BBC Nature Films Ltd (Bristol, UK, 2001) with director Amanda Barrett, partly based on Prins’ field work.

11 - see the 55 minutes feature film "Wild battlefield" made by BBC Nature Films Ltd (Bristol, UK, 2002) with director Peter Bassett, partly based on Prins’ field work.

12 - Oindo, B.O., A.K. Skidmore & H.H.T. Prins (2001). Body size and abundance relationship: an index of diversity for herbivores. Biodiversity and Conservation 10 : 1923-1931. [pdf]

13 - Ottichilo, W.K., J. de Leeuw & H.H.T. Prins (2001). Population trends of resident wildebeest [Connochaetus taurinus hecki (Neumann)] and factors influencing them in the Masai Mara ecosystem, Kenya. Biological Conservation 97 : 271 – 282. [pdf]

14 - Voeten, M.M. & H.H.T. Prins (1999). Resource partitioning between sympatric wild and domestic herbivores in the Tarangire region of Tanzania. Oecologia 120 : 287 - 294. [pdf]

15 - Prins, H.H.T. & P.E. Loth (1988). Rainfall patterns as background to plant phenology patterns in the Masai ecosystem of northern Tanzania. Journal of Biogeography 15 : 451 - 463. [pdf]

16 - Prins, H.H.T. (1988). Plant phenology patterns in Lake Manyara National Park. Journal of Biogeography 15 : 465 - 480. [pdf]

17 - Rietkerk, M., J. van de Koppel, L. Kumar, F. van Langevelde and H.H.T. Prins, 2002. The ecology of scale. Ecological Modelling 149 : 1 - 4. [pdf]

18 - Kumar, L., M. Rietkerk, F. van Langevelde, J. van de Koppel, J. van Andel, J. Hearne, N. de Ridder, L. Stroosnijder, A.K. Skidmore and H.H.T. Prins, 2002. Relationship between vegetation growth rates at the onset of the wet season and soil type in the Sahel of Burkina Faso: implications for resource utilisation at large scales. Ecological Modelling 149 : 143-152. [pdf]

19 - Rietkerk, M., M. Boerlijst, F. van Langevelde, R. HilleRisLambers, J. van de Koppel, L. Kumar, H.H.T. Prins and A. de Roos, 2002. Self-organization of vegetation in arid ecosystems. American Naturalist 160:524-530 [pdf]

20 - HilleRisLambers, R., M. Rietkerk, F. van den Bosch, H.H.T. Prins & J.C.J.M. de Kroon (2001). Vegetation pattern formation in semi-arid grazing systems. Ecology 82 : 50-61. [pdf]

21 - Rietkerk, M., T. Ouedraogo, L. Kumar, S. Sanou, F. van Langevelde, A. Kiema, J. van de Koppel, J. van Andel, J. Hearne, A.K. Skidmore, N. de Ridder, L. Stroosnijder and H.H.T. Prins, 2002. Fine-scale spatial distribution of plants and resources on a sandy soil in the Sahel. Plant and Soil 239 : 69 - 77. [pdf]

22 - Van de Koppel, J., M. Rietkerk, F. van Langevelde, L. Kumar, C.A. Klausmeier, J.M. Fryxell, J. Hearne, J. van Andel, N. de Ridder, A.K. Skidmore, L. Stroosnijder and H.H.T. Prins, 2002. Spatial heterogeneity and irreversible vegetation change in semi-arid grazing systems. American Naturalist 159 : 209-218. [pdf]

23 - Van Langevelde, F., C.A.D.M. van de Vijver, L. Kumar, J. Van de Koppel, N. de Ridder, J. van Andel, A.K. Skidmore, J. Hearne, L. Stroosnijder, H.H.T. Prins and M. Rietkerk (2003). Effects of fire and herbivory on the stability of savanna ecosystems. Ecology 84 : 337 - 350. [pdf]

24 - Prins, H.H.T. & J.M. Reitsma (1989). Mammalian biomass in an African equatorial rain forest. Journal of Animal Ecology 58 : 851 - 861. [pdf]

25 - Prins, H.H.T. & I. Douglas-Hamilton (1990). Stability in a multi-species assemblage of large herbivores in East Africa. Oecologia 83 : 392 - 400. [pdf]

26 - Prins, H.H.T. & H. Olff (1998). Species richness of African grazer assemblages: towards a functional explanation. In: D.M. Newbery, H.H.T. Prins & N.D. Brown (eds) Dynamics of tropical communities. BES Symp. Vol. 37, p. 449 - 490. Blackwells Scientific, Oxford. [pdf]

27 - Olff, H., Ritchie, M.E., Prins, H.H.T. (2002). Global environmental controls of diversity in large herbivores. Nature 415 : 901 – 904. [pdf]

28 - Prins, H.H.T., J.G. Grootenhuis & T.T. Dolan (2000). Wildlife Conservation by Sustainable Use. Kluwer Academic, Boston.

29 - see www.biodiv.org decisions COP5 in Nairobi.

Personal details

Personal details

Family name : PRINS

First names : Herbert Henri Théodore

Year of birth : 1953

Nationality : Netherlands

Present positions

  • Professor and Chair of Resource Ecology (formerly: Tropical Nature Conservation and Vertebrate Ecology), Wageningen University, the Netherlands.

Honours and Awards

  • Fulbright Scolarship 2012-2013
  • Aldo Leopold Award, American Association of Mammalogists (2010)
  • Recipient of a Festschrift (“The Prins and I: enlightenment through reason” edited by A. Brunsting, I. Heitkönig & S. van Wieren) for my 40th Ph.D. graduation (2007)
  • Foundation Fellow, elected by the Royal Melbourne Institute of Technology (2006)
  • Honorary promotor for the bestowing of an Honorary Doctorate upon Dr. R.F.M. Leakey (2003)
  • Officer in the Order of Oranje Nassau (2002), by Royal Decree of HM The Queen Beatrix
  • Officer in the Order of the Golden Ark (2001), bestowed by HRH Prince Bernhard
  • Best paper prize Environmental Conservation (1993)
  • Netherlands Zoology Prize (1991)
  • PhD degree was received cum laude

Visiting fellowships

  • 2012 – 2013 Visiting Professorship Princeton University (USA)
  • 2012 – 2015 Honorary Professor in Computational Ecology at the University of KwaZulu-Natal, Durban, South Africa
  • 2012: Research Fellow, Welgevonden Private Landowners Association (Vaalwater, South Africa)
  • 2009/2010: Visiting Professor, Commonwealth Scientific and Industrial Research Organisation, Davies Laboratory (Townsville, Queensland, Australia)
  • 2009: Research Fellow, Welgevonden Private Landowners Association (Vaalwater, South Africa)
  • 2006/2007: Foundation Fellow and Visiting Professor, Royal Melbourne Institute of Technology (Melbourne, Australia)
  • 2005/2006: Visiting Professor, Commonwealth Scientific and Industrial Research Organisation, Davies Laboratory (Townsville, Queensland, Australia)
  • 2002: Visiting Professor, University of Natal (Pietermaritzburg, South Africa)

Additional positions

•Jury ERC Advanced Grants (since 2014)
•College of External Reviewers of European Science Foundation (2019-2022)
•Reading Committee, Antwerp University (Belgium) (since 2014)
•Editorial Board Environmental Research Letters
•Editorial Board Journal of Tropical Ecology
•Editorial Board Environmental Conservation
•Welgevonden Scientific Advisory Committee (Johannesburg, South Africa)
•Chairman Sensing Clues Foundation (Utrecht)
•Trustee of the Foundation for Restoring European Landscapes (FREE Nature) (Beuningen)
•Board of Recommendation Precious Biospheres Foundation (Amsterdam)
•Trustee of the Foundation for Scientific Research in the Tropics (Treub-Maatschappij) (Amsterdam)
•Chairman of the BioSearch Foundation (Klarenbeek)
•Organiser (with other members of the Board) of the 17th Doorwerth Conference, Doorwerth Castle, the Netherlands.
•Advisor of the Himalayan Tiger Foundation (Leiden)

Professional affiliations

  • Member IUCN Species Survival Commission
  • Member IUCN Commission on Ecosystem Management
  • Member World Commission on Protected Areas and National Parks
  • Member IUCN Asian Cattle Specialist Group
  • Member Netherlands Committee for IUCN
  • Member Netherlands Ecological Society
  • Honorary member Machakos Wildlife Forum, Keny

Private affiliations

  • Member Darwin College Society, Cambridge (U.K.)
  • Member Baas Becking Society, Leiden (NL)

Education

  • 1971 1975 Biology study, Rijksuniversiteit Groningen, the Netherlands. "Kandidaats Examen", Faculty of Mathematics and Natural Sciences in 1975.
  • 1975 1979 Biology study, Rijksuniversiteit Groningen and at LPPM, Maros, Sulawesi (Indonesia). "Doctoraal Examen" cum laude at Groningen University. In 1978 three months at University College of North Wales, Bangor (U.K.).
  • 1981 1985 Ph.D. student, Darwin College, Cambridge University (U.K.), and at Large Animal Research Group, Cambridge, 1980 to 1985.
  • 1987 Doctor's degree "Wiskunde en Natuurwetenschappen" (= Doctor in Mathematics and Natural Sciences) (Biology), Rijksuniversiteit Groningen; cum laude.

Employment record

Present position:

  • Full professor and Chair of Resource Ecology, Wageningen University, the Netherlands (since 1991).
  • Twenty-four PhD students are being tutored by me in collaboration with others.

Previous positions:

  • 2002 - 2005: Director of the Centre for Ecosystem Studies, Wageningen University (a part-time additional position)
  • 1990 - 1991: Research fellow of the Royal Netherlands Academy of Arts and Sciences (KNAW)
  • 1988 - 1990: Senior scientist in the Zoological Laboratory, University of Groningen (The Netherlands).
  • 1989 - 1990: Parks Research Management Specialist for the State Institute of Nature Management (The Netherlands) in five National Parks & Reserves in Indonesia (i.e., Java, Sumatra, Bali and Sulawesi). To advise the Government of Indonesia and the World Bank on research station management and biological research priorities in the Indonesian Parks.
  • 1985 - 1988: Visiting research fellow, Dept. Behavioural biology, University of Groningen, The Netherlands; writing of doctoral thesis and teaching.
  • 1980 - 1985: Research fellow of the Netherlands Foundation for the Advancement of Tropical Research (WOTRO), carrying out research on the African buffalo in Tanzania.

Scientific publications

Publications

Special issues of Scientific Journals

Special issues of Scientific Journals

Van Langevelde, F. & H.H.T. Prins (eds. ) (2007). Resilience and restoration of soft-bottom near-shore ecosystems. HYDROBIOLOGIA 591 (special issue).

Rietkerk, M., J. van de Koppel, L. Kumar, F van Langevelde & H.H.T. Prins (eds.) (2002). Ecology of Scale. ECOLOGICAL MODELLING 149 (special issue).

De Iongh, H.H. & H.H.T. Prins (eds.) (2000). Managing the African savannas: Options for Conservation and Sustainable Use. Mededelingen 36. Nederlandse Commissie voor Internationale Natuurbescherming, Leiden.

De Iongh, H.H. & H.H.T. Prins (eds.) (1999). Species Conservation: The 1994 IUCN Red List categories discussed. Mededelingen 33. Nederlandse Commissie voor Internationale Natuurbescherming, Leiden.

De Korte, J., L. Haquebord & H.H.T. Prins (eds) (1991). Life in the polar winter: strategies of survival. ARCTIC 44 (special issue).

Chapters in books

Books

Reports

Popular scientific papers

PhD theses supervised

Films & Exhibitions

Films & Exhibition

Herbert Prins has been consultant for the following films:

The African boss (55 minutes feature film). Produced by Partridge Films Ltd, Bristol (UK) for BBC. Director: Clive Bromhall, 2000.

Savannah (55 minutes feature film). Produced by BBC Natural History Films, Bristol (UK). Director: Amanda Barrett, 2001.

Battlefield (55 minutes feature film). Produced by BBC Natural History Films, Bristol (UK). Director: Peter Bassett, 2002.

Horns of Death (45 minutes dramatised feature film). Produced by National Geographic Television and Films, Washington (D.C) (USA). –Producer: Robert Ferrier, 2006.

Earth’s Great Events: The Great Plain (55 minutes feature film, in state of production). Produced by BBC Bristol, Bristol (UK). Director: Peter Bassett, 2009.

Exhibition:

Wildebeesten – In volle vaart door Afrika met 1 miljoen gnus (Wildebeest – Full speed through Africa with one million gnu). Naturalis, Leiden, 10 October 2008 – 22 August 2010. Number of visitors: 500,000

Professional experience

Professional experience

(see also "Personal details/Professional affiliation")

Since 1991: Professor and Chair of Resource Ecology (formerly, till 2003, Tropical Nature Conservation and Vertebrate Ecology) at Wageningen University, The Netherlands.

Workshops were organised for Mweka Wildlife College, Tanzania (1984), for the Indonesian National Parks Service PHPA in Bogor (1989) and Banyuwangi (Indonesia) (1990), for the Netherlands Ministry of Foreign Affairs on Wildlife Utilisation in Africa on the Lewa Downs Conservancy in Kenya (1997), for the Permanent Secretary of the Convention on Biological Diversity in Lilongwe (Malawi) (1998) and Bratislava (Slovakia) (1998), for the Society on resource Modelling (Wageningen; 2000), and again for the Permanent Secretary of the Convention on Biological Diversity in Maputo (Mozambique; 2001), Hanoi (Vietnam; 2002), and Salinas (Ecuador; 2002), for Resource Ecology (Wageningen, 2005), for the School of Geospatial and Mathematical Sciences of RMIT (Hamilton and Melbourne).

1993, 1995, 1997, 1998: Back-stopper (Consultant) for the DEIFBI-project of NUFFIC/University of Groningen for the advice on research priorities for Animal Ecology of the Universidade Eduardo Mondlane in Maputo, Mozambique.

1992: Evaluator (Consultant) Netherlands' Ministry of Development Cupertino (DGIS) for the Livestock Development Programme, Western Province, Zambia.

1991: Evaluator (Consultant) of the World Wide Fund for Nature (WWF) Indonesia Programme.

1991: Ecologist in Tanzania conducting research in the Lake Manyara National Park and the Tarangire N.P. Fieldwork.

1989 - 1990: Ecologist (Consultant) in Indonesia to advise the World Bank and the Government of Indonesia on buffer zone planning and research management in five national parks in Indonesia. In addition, a training course in Park Management was given in Indonesia in 1990.

1989: preparations for the start of international education at the Depart­ment of Biology of the University of Groningen; teaching field course in animal ecology.

1988: Ecologist (Consultant) in Gabon: From January to March ecolo­gical assessment of a primary rain forest in Gabon was carried out for SHELL International.

1980 - 1987: Ecologist and ethologist in Great Britain (Cambridge 1980/­1981), in Tanzania (1981 ‑ 1985), and in The Netherlands (Groningen 1985‑1987). Project: The relation between the social organisation and food exploitation in the African buffalo (Syncerus c. caffer). On request of TaNaPa (Tanzania National Parks) and AWF (African Wildlife Foundation) a report on land evalua­tion and tourist evaluation was written for the Arusha Region, Tanzania.

1985: Ecologist (Consultant) in Canada, setting up research on the osprey (Pandion haliae­tus) in British-Columbia for the Department of Biological Sciences, Simon Fraser University, Burnaby (B.C.) (July & August 1985).

1979: Ecologist on Spitsbergen (High Arctic), studying the breeding ecology of the barnacle goose (Branta leucop­sis), a study regarding the relation between individual food selection and hatching success on Spitsbergen; expe­dition from the Zoologisch Laboratorium of the University of Groningen and the Wildlife Trust (Slimbridge, U.K.) (June ‑ September 1979).

1977 - 1979: Ecologist in The Netherlands, studying grazing and food manipulation by wintering barnacle geese and brent (Branta bernicla) geese on the saltmarshes of Schier­monnikoog.

1976: Ecologist in The Netherlands, studying the functional background of selective pollination of Rhinanthus serotinus and R. minor by bumblebees.

1975: Ecologist in Indonesia, studying the ecology of Homoptera in the rice culture of south Sulawesi, Indonesia (LPPM/IRRI, Maros, Sulawesi), and carrying out a study about the development of the rice culture in Indonesia 1940 ‑ 1975.

Previous additional activities

Previous additional activities

1998 – 2011 Executive Member of the Board of the Van Tienhoven Foundation

2003 – 2009 Member of the Academic Board, Wageningen University

2012 Organiser (with other members of the Board) of the 14th Doorwerth Conference (“Government Policy concerning Nature and Conservation: what drives politicians?”), Doorwerth Castle, the Netherlands.

2011 Organiser (with other members of the Board) of the 13th Doorwerth Conference (“Demography, Use of the Countryside and Quality”), Doorwerth Castle, the Netherlands.

2010 Organiser (with Iain Gordon) Symposium “When Continents Collide” within the Australian Ecological Society Meeting 2010, Canberra.

2010 Organiser (with other members of the Board) of the 12th Doorwerth Conference (“Biodiversity and Nature Compensation”), Doorwerth Castle, the Netherlands.

2010 Organiser (with Lucas Noldus) Workshop “Wildlife Surveillance using GPS: from movement tracking to behavior recognition” within Conference Measuring Behavior, Eindhoven, the Netherlands.

2009 Organiser (with other members of the Board) of the 11th Doorwerth Conference (“Nature Conservation and Nature Utilisation”), Doorwerth Castle, the Netherlands.

2008 Organiser (with other members of the Board) of the 10th Doorwerth Conference (“How to Sustain the Taxpayer’s Enthusiasm for Nature?”), Doorwerth Castle, the Netherlands.

2007 Organiser (with John Kie and Dean Anderson) Symposium “Thermal Ecology” within the 7th IALE World Conference, Wageningen, the Netherlands.

2007 Organiser (with other members of the Board) of the 9h Doorwerth Conference (“Society is Dynamic – why should Nature not be Dynamic too?”), Doorwerth Castle, the Netherlands.

2006 Organiser (with other members of the Board) of the 8th Doorwerth Conference (“

2005 Organiser (with Frank van Langevelde) of Symposium and Workshop “Resource Ecology”, Wageningen, the Netherlands. 

2004 Organiser (with John Kie) of Symposium “Large Mammals: Landscapes and Life Histories” within the 9th International Mammal Conference, Sapporo (Japan).

1999 – 2006 Member of the General Board of Tropenbos International.

1999 – 2005 Member of the Programme Committee for Scientific Co-operation between the Netherlands and Indonesia (Sciences) of the Royal Netherlands Academy of Sciences (KNAW).

1997 – 2003 Member of Executive Board of the Netherlands Nature Conservancy ("Natuurmonumenten").

1999 – 2003 Member of the Executive Board of Tropenbos International.

2003 Organiser of Session “Role of Wildlife in Rangelands” (with Prof. R. Slotow, University of Natal) at the VIIth International Rangeland Conference, Durban, South Africa.

2001 and 2002 Consultant on wetland ecology in the Kafue Flats (for DHV and WWF) in Zambia.

2001 and 2002 Chairman and moderator of three workshops on the sustainable use of the components of biological diversity (dry lands, forest, fisheries in, respectively, Mozambique, Vietnam and Ecuador) for the Convention on Biological Diversity.

2000 Member of Netherlands Government Delegation to Conference of Parties for the Convention on Biological Diversity (COP5; Nairobi).

1999 Member of Netherlands Government Delegation to the Subsidiary Body on Technological and Technical Advice for the Convention on Biological Diversity (SBSTTA5; Montreal).

1999 Member of the Panel of Experts representing the Netherlands for advice on the Ecosystem Approach within the Convention on Biological Diversity (Paris).

1998 Member of Netherlands Government Delegation to Conference of Parties for the Convention on Biological Diversity (COP4; Bratislava).

1997 and 1998 Member of the Scientific Committee for the 2nd International Symposium on Physiology and Ethology of Wild and Zoo Animals, Berlin (1998).

1998 Consultant for the DEIFBI-project of NUFFIC/University of Groningen for the advice on research priorities for Animal Ecology of the Universidade Eduardo Mondlane in Maputo, Mozambique.

1997 Chairman and organiser of the Convention on Biological Diversity Workshop on the Ecosystem Approach, Lilongwe (Malawi) (1997). Consultant for the DEIFBI-project of NUFFIC/University of Groningen for the advice on research priorities for Animal Ecology of the Universidade Eduardo Mondlane in Maputo, Mozambique.

1997 Chairman of the Programme Committee for Sciences and Medicine of the Netherlands Foundation for the Advancement of Tropical Research (WOTRO).

1992 - 1997 Secretary of the Foundation Bargerveen.

1996 and 1997 Member of the Scientific Committee for the 38th British Ecological Society Symposium “Plants-Herbivores-Predators”, Groningen, the Netherlands (1997).

1995 and 1996 Member of the Scientific Committee for the 37th British Ecological Society Symposium “Dynamics of Tropical Communities”, Cambridge (UK)(1996).

1995 - 1997 Chancellor of the Department of Terrestrial Ecology and Nature Conservation, Wageningen University.

1993 - 1997 Chairman of the Section Biology and Earth Sciences (BAOT) of the Netherlands Foundation for the Advancement of Tropical Research (WOTRO).

1990 - 1995 Editor of ARDEA (an international ornithological journal).

1995: Jury member and Chairman of the Grant Commission for Natural and Medical Sciences of the Netherlands Foundation for the Advancement of Tropical Sciences. Consultant for the DEIFBI-project of NUFFIC/University of Groningen for the advice on research priorities for Animal Ecology of the Universidade Eduardo Mondlane in Maputo, Mozambique.

1994 and 1995: Member of the Scientific Committee for the 2nd European Congress on Mammalogy (1995). Member of the Scientific Committee for the Forest Ungulate Conference (1995). Advisor to the Netherlands Government's Project Group for International Nature Conservation.

1990 - 1993: Secretary of the Section Biology and Earth Sciences (BAOT) of the Netherlands Foundation for the Advancement of Tropical Research (WOTRO). Member of the Board of the World Tree Fund.

1993: Consultant for the DEIFBI-project of NUFFIC/University of Groningen for the advice on research priorities for Animal Ecology of the Universidade Eduardo Mondlane in Maputo, Mozambique.

1991: Evaluator for the WorldWide Fund for Nature (WWF) Indonesia Programme.

1992: Evaluator for the Netherlands Ministry of Development Co-operation’s livestock development programme in Zambia.

1990: Guest-editor for ARCTIC (journal of the North American Institute for Arctic Re­search).

1988 - 1990: Member of the Board of Governors of the Environmental Federation in the Province of Groningen.

1987 – 1990: Member of the Board of Governors and of the Executive Body of the "Arctic Centre" of the University of Groningen.

1988: Consultant for the Wageningen University (Dept. of Nature Management) to carry out an ecological impact study of oil drilling on a lowland rainforest in Gabon (Equatorial Africa) for SHELL Int.; fieldwork plus report writing.