Evaluation of Non-Human Primates’ Welfare in Captive Sites of Cameroon

Authors

  • Gery, Wamba Department of Forestry and Wildlife Technology, the College of Technology, University of Bamenda, Cameroon
  • Julius Awah Ndukum Department of Forestry and Wildlife Technology, the College of Technology, University of Bamenda, Cameroon
  • Tsi Evaristus Angwafo Department of Forestry and Wildlife Technology, the College of Technology, University of Bamenda, Cameroon

DOI:

https://doi.org/10.54536/jwc.v2i1.7172

Keywords:

Non-Human, Primates, Captive, Management, Body Condition Score, Welfare

Abstract

In other to evaluate the welfare of non-human (NH) primates in captive sites of Cameroon, the body condition scoring (BCS) technique was used to score the NH primates present in two sanctuaries (the Mefou Primates Sanctuary “MPS” and the Sanaga Yong Chimpanzee Rescue Centre “SYCRC” and two zoological gardens (the Limbe Wildlife Centre “LWC” and the Mvogbetsi Zoo Botanical Garden “MZBG”). A total of 633 NH primates (223 “35.2%” in LWC, 277 “43.8%” in MPS, 61”9.6%” in MZBG and 72”11.4%” in SYCRC) were found in these captive sites. They were composed of 16 different species; 2 Apes (Gorillas and Chimpanzees), 3 Papionines (Drills, Mandrills and Baboons), 3 Mangabeys (Agile, Red cap and Gray chicked) and 8 Guenons (Crown, Putty nosed, De braza, Mustached, Red tail, Preus, Patas and Tantalus). Chimpanzees were the most abundant (36.3%) species, while Debraza and Preuss guenon (0.3% each) were the least abundant. It was noticed that the captive sites category and the housing facilities of these captive NH primates had an impact on their welfare. The NH primates in sanctuaries had better mean BCS (4 – 5) compared to those living in zoos whose mean BCS ranged between 3 - 4. Concerning the housing of the NH primates, those living in natural enclosures had the best mean BCS (5). Those in enriched habitats followed with a mean BCS ranging between 4 and 5 while hose in un enriched habitats had the least mean BCS (3). It was also notice that NH primates housed in groups of 6 – 10 had the best BCS (5) compared to other group sizes. Meaning very large groups and very small groups had negative impact on their welfare. Keepers were found to influence the BCS of NH primates under their care in the sense that, keepers with higher level of education, keepers at the adult age group and keepers that had spent between 6 – 10 years in the captive sites had NH primates with the best mean BCS (4 -5). This shows that the environment of NH primates, their group size, and the keepers taking care of them are very key factors to the well-being of these primates. Captive sites have to take these aspects in to consideration so as to replicate the management, the biome and the niche of captive NH human primates such that it reflects that in the wild. This will permit them to express most of their natural potentials even though they are in captivity. 

Author Biographies

  • Julius Awah Ndukum, Department of Forestry and Wildlife Technology, the College of Technology, University of Bamenda, Cameroon
  • Tsi Evaristus Angwafo, Department of Forestry and Wildlife Technology, the College of Technology, University of Bamenda, Cameroon

    Director of COLTECH

References

Alexana, J. H., Aaryn, C. M., Kathy, B., Kelly, R. R., Benjamin, J. R., Katherine, R. A., Michael, L. P., & Corinna, N. R. (2025). Validation of body condition scoring as a screening test for low body condition and obesity in common marmosets (Callithrix jacchus).

Alvarez, L. A. (2019). American Journal of Primatology.

Bacon, H. J. (1999). Keeping wild animals in captivity: Challenges and solutions. Jeanne Marchig International Centre for Animal Welfare Education, University of Edinburgh.

Barber, J. C. (2009). Programmatic approaches to assessing and improving animal welfare in zoos and aquariums. Zoo Biology, 28(6), 519–530. https://doi.org/10.1002/zoo.20264

Burke, R. L., & Birch, J. M. (1995). White-tailed deer vary offspring sex ratio according to maternal condition and age. Ecological Research, 10(3), 351–357.

Carlstead, K. (1996). Effects of captivity on the behavior of wild mammals. In D. G. Kleiman, M. E. Allen, K. V. Thompson, & S. Lumpkin (Eds.), Wild mammals in captivity: Principles and techniques(pp. 317–333). University of Chicago Press.

Carlstead, K. A. (2009). A comparative approach to the study of keeper–animal relationships in the zoo. Zoo Biology, 28(6), 589–608. https://doi.org/10.1002/zoo.20289

Carrasco, L., Colell, M., Calvo, M., Abelló, M.T., Velasco, M. & Posada, S. (2009). Benefits of training/playing therapy in a group of captive lowland gorillas (Gorilla gorilla gorilla). Animal Welfare, 18, 9-19.

Chethan, H. B., Lokesha, K. M., Madhavaprasad, C. B., Shilpa, V. T., Karabasanavar, N. S., & Kumar, A. (2013). Occupational zoonoses in zoo and wildlife veterinarians in India. Veterinary World, 6(9), 605–613. https://doi.org/10.5455/vetworld.2013.605-613

Clegg, I., Borger-Turner, J., & Eskelinen, H. W. (2015). The development of a welfare assessment index for captive bottlenose dolphins (Tursiops truncatus). Animal Welfare, 24(3), 267–282. https://doi.org/10.7120/09627286.24.3.267

Clingerman, K. J., & Summers, J. (2005). Development of a body condition scoring system for nonhuman primates using Macaca mulatta as a model. Lab Animal, 34(5), 31–36. https://doi.org/10.1038/laban0505-31

Clutton-Brock, T. H., & Iason, G. R. (1986). Sex ratio variation in mammals. The Quarterly Review of Biology, 61(3), 339–374.

Croft, D. P., James, R., & Krause, J. (2008). Exploring animal social networks. Princeton University Press.

de Vries, H. (1993). The rowwise correlation between two proximity matrices and the partial rowwise correlation. Psychometrika, 58(1), 53–69. https://doi.org/10.1007/BF02294413

Dawkins, M. S. (1990). From an animal’s point of view: Motivation, fitness, and animal welfare. Behavioural and Brain Sciences, 13(1), 1–61.

Department for Environment, Food, and Rural Affairs. (2012). Animal welfare and its assessment in zoos. In Zoos Expert Committee handbook(Chap. 4, pp. 104–156). Department for Environment, Food, and Rural Affairs.

Eridia, P., Bethany, L., & Krebs, J. V. (2024). Keeper effect: Animals are more active in the presence of their caretakers. Zoo Biology. Advance online publication. https://doi.org/10.1002/zoo.21833

Farm Animal Welfare Council. (2009). Five freedoms. https://webarchive.nationalarchives.gov.uk/2012

Forthman, D. L., & Ogden, J. J. (1992). The role of applied behavior analysis in zoo management: Today and tomorrow. Journal of Applied Behavior Analysis, 25(3), 647–652. https://doi.org/10.1901/jaba.1992.25-647

Ghassani, Y. K., Rianti, N. P., & Priambada. (2023). Welfare assessment of slow loris (*Nycticebus* spp.) at an Indonesian primate rehabilitation center: Development and validation of body condition score. American Journal of Primatology, 85(8), e23524. https://doi.org/10.1002/ajp.23524

Hemsworth, P. H., & Coleman, G. J. (2010). Human-livestock interactions: The stockperson and the productivity of intensively farmed animals(2nd ed.). CABI.

Hinde, R. A., & Groebel, J. (1975). The problem of aggression. In R. A. Hinde & J. Groebel (Eds.), Aggression and war: Their biological and social basis (pp. 3–9). Cambridge University Press.

Hosey, G. (2023). The history of primates in zoos. In L. M. Robinson & A. Weiss (Eds.), Nonhuman primate welfare. Springer. https://doi.org/10.1007/978-3-031-39373-9

Hosey, G., & Melfi, V. (2019). Introduction. In G. Hosey & V. Melfi (Eds.), Anthrozoology: Human–animal interactions in wild and domesticated animals (pp. 1–16). Oxford University Press.

Jana, L. A., Yaiza S., Sara S., Dietmar, C., & Miquel, L. (2019). Looking for Visitor’s Effect in Sanctuaries: Implications of Guided Visitor Groups on the Behaviour of the Chimpanzees at Fundació Mona. 9(6): 347.

Kruse H., Anne-Mette, k., & Kjell, H. (2004). Wildlife as source of zoonotic infections. PMID: DOI: 10.3201/eid1012.040707

Kuhar, C.W., Stoinski, T.S., Lukas, K.E., & Maple, T. (2006). Gorilla Behavior Index revisited: Age, housing and behavior. Appl. Anim. Behav. Sci, 96, 315–326.

Lake, M. (2012). Wildlife sanctuary. City of Oakland.

Labocha, M. K., & Hayes, J. P. (2012). Morphometric indices of body condition in birds: A review. Journal of Ornithology, 153, 1–22.

Maher, C. J., Gibson, A., Dixon, L. M., & Bacon, H. (2021). Developing a Reliable Welfare Assessment Tool for Captive Hibernatory Bear Species. Animals, 11, 3090.

Martin, R. A., & Melfi, V. A. (2016). Comparison of zoo animal behaviour in the presence of familiar and unfamiliar people. Journal of Applied Animal Welfare Science, 19, 234-244.

Meehan, C. L., Mench, J. A., Carlstead, K., Hogan, J. N., Brown, J., Morfeld, K., Winckler, C., Forkman, B., Dimitrov, L., Langbein, J., Bakken, M., Vessier, I., & Aubert, A. (2016). Determining connections between the daily lives of zoo elephants and their welfare: An epidemiological approach. PLOS ONE, 11(7), e0158124. https://doi.org/10.1371/journal.pone.0158124

Mesmin, T., Clair, R., Appolinaire, N., & Jean, S. M. (2000). Mapping of protected areas evolution in Cameroon from the beginning to 2000: Lessons to learn and perspectives.

Michael, M., & Koen, K. (2017). Are forest disturbances amplifying or canceling out climate change-induced productivity changes in European forests? Environmental Research Letters, 12(3), 034027. https://doi.org/10.1088/1748-9326/aa5ef1

Mikola, M., Jukka, K., John, H. N., Ruth, A. K., Matti, P., & Ilpo, H. (2003). High levels of luteinizing hormone analogue stimulate gonadal and adrenal tumorigenesis in mice transgenic for the mouse inhibin-α-subunit promoter/Simian virus 40 T-antigen fusion gene. 22, 3269–3278.

Morfeld, K. A., Lehnhardt, J., Alligood, C., Bolling, J.; Brown, J.L. (2014) Development of a Body Condition Scoring Index for Female African Elephants Validated by Ultrasound Measurements of Subcutaneous Fat. PLoS ONE 9, e93802.

Njoya, I. S., & Force, E. (2021). Faune protégé du Cameroun: Guide des principales espèces soumises à réglementation. Ministère des Forêts et de la Faune & Ambassade de France au Cameroun.

Pan African Sanctuary Alliance. (2002). Operational manual: Protecting primates together (4th ed.).

Philips-Conroy, J. E. (2005). Baboons, diet, and disease: Food plant selection and schistosomiasis. In D. M. Taub & F. A. King (Eds.), Current perspectives in primate social dynamics (pp. 287–304). Van Nostrand Reinhold.

Pourrut, X., Diffo, J. L. D., Somo, R. M., Delaporte, E., LeBreton, M., Gonzalez, C. F., & Bilong Bilong, C. (2010). Prevalence of gastrointestinal parasites in primate bushmeat and pets in Cameroon. https://doi.org/10.1016/j.vetpar.2010.09.023

Reamer, L. A., Neal, S. J., & Webb, R. J. (2020). Validation and utility of a body condition scoring system for chimpanzees (Pan troglodytes). American Journal of Primatology, 82(10), e23188.

Ross, S. R., Schapiro, S. J., Hau, J., & Lukas, K. E. (2009). Space use as an indicator of enclosure appropriateness: A novel measure of captive animal welfare. Applied Animal Behaviour Science, 121, 42–50.

Salas, M., Manteca, X., Abáigar, T., Delclaux, M., Enseñat, C., Martínez-Nevado, E., Quevedo, M., & Fernández-Bellon, H. (2018). Using Farm Animal Welfare Protocols as a Base to Assess the Welfare of Wild Animals in Captivity—Case Study: Dorcas Gazelles (Gazella dorcas). Animals, 8, 111.

Sarah, D. (2019). Protected areas benefit people nearby—but people nearby can put the squeeze on wildlife. Daily science.

Schulte-Hostedde, A. I., Millar, J. S., & Hickling, G. J. (2001). Evaluating body condition in small mammals. Canadian Journal of Zoology, 6(79). https://doi.org/10.1139/z01-073.

Shepherdson, D. J., & Carlstead, K. (2000). When did you last forget to feed your tiger? Raising the bar on environmental enrichment in AZA zoos and aquaria. In AZA Annual Conference Proceedings 2000 (pp. 231–235). Association of Zoos and Aquariums.

Soham, M., & Akanksha, M. (2023). hort Communication: The Importance of Modern Zoos and Animal Sanctuaries in Promoting Wildlife Conservation and Education. Journal Science Humanities and Arts - JOSHA, 10(2).

Summers, L., Clingerman, K. J., & Yang, X. (2021). Validation of a body condition scoring system in rhesus macaques (Macaca mulatta): Assessment of body composition using dual-energy X-ray absorptiometry. Journal of the American Association for Laboratory Animal Science, 51(1), 88–93.

Tom, B., Constant, N., Andrew, F., Malenoh, N., & Oliver, F. (2018). Faunal inventory of the Dja Faunal Reserve, Cameroon.

Torfs, J. R. R., Eens, M., & Laméris, D. W. (2023). Visually assessed body condition shows high heritability in a pedigreed great ape population. American Journal of Primatology, 85(10), e23540.

Turnock, S. E., Gould, L., & Duffus, D. A. (2002). Maternal behaviour and infant congenital limb malformation in a free-ranging group of Macaca fuscata on Awaji Island, Japan. International Journal of Primatology, 26, 1435–1457.

Downloads

Published

2026-07-06

How to Cite

Gery, W., Ndukum, J. A. ., & Angwafo, T. E. . (2026). Evaluation of Non-Human Primates’ Welfare in Captive Sites of Cameroon. Journal of Wildlife and Conservation, 2(1), 39-51. https://doi.org/10.54536/jwc.v2i1.7172

Similar Articles

You may also start an advanced similarity search for this article.