camera trap; Central Africa; chilli pepper; forest elephants; Gabon
Abstract :
[en] In Central Africa, Gabon is a forested country with a rich biodiversity where conflict between wild animals and humans is common and causes innumerable damage to crops. The worst crop raiders are elephants, which can destroy an entire crop in a single night. These raids threaten people’s livelihoods as well as elephants because angry farmers often retaliate with killing campaigns against crop raiding elephants. To keep elephants out of farms the use of chilli pepper is recommended as a non-lethal method. But only a few studies have tested methods to use chilli pepper to deter elephants in Gabon. Results from this study give a starting point for understanding
how forest elephants react to devices using chilli pepper as a deterrent based on sequential camera trap photos. A chilli pepper device that resulted in splashing concentrate on the elephant face proved to be the most effective at deterring elephants. Surprisingly, chilli pepper concentrate directly applied to mango fruits did not deter elephants from eating the fruits, although it probably caused some discomfort. To make effective deterrent devices with chilli pepper future works need to focus on exploring practices to reach the elephant face with the least, safe quantity of chilli pepper and which will have enough strong deterrent effect.
Disciplines :
Life sciences: Multidisciplinary, general & others
Korte, Lisa; Smithsonian Conservation Biology Institute, Gabon Biodiversity Program, USA
Johnson, Mireille; Smithsonian Conservation Biology Institute, Gabon Biodiversity Program, USA
Vermeulen, Cédric ; Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Laboratoire de Foresterie des régions trop. et subtropicales
Bindelle, Jérôme ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
Language :
English
Title :
Camera traps to study the forest elephant’s (Loxodonta cyclotis) response to chilli pepper repellent devices in Gamba, Gabon
Alternative titles :
[en] LES PIÈGES PHOTOGRAPHIQUES POUR ÉTUDIER LA RÉACTION DES ÉLÉPHANTS DE FORÊTS (LOXODONTA CYCLOTIS) FACE AUX DISPOSITIFS RÉPULSIFS DE PIMENT A GAMBA, GABON
Ameh S.J., Ibekwe N.N., Ebeshi B.U. 2015. Essential Oils in Ginger, Hops, Cloves, and Pepper Flavored Beverages - A Review. Journal of Dietary Supplements 12: 241-260. DOI: 10.3109/19390211.2014.952858
Blanc J.J, Barnes R.F.W., Craig G.C., Dublin H.T., Thouless C.R., Douglas-Hamilton I., Hart J.A. 2007. African elephant status report 2007: An update from the African Elephant Database. Gland, Switzerland: IUCN. 275 p. DOI 10.2305/IUCN.CH.2007.SSC-OP.33.en
Blanc J., Bumham K., Dublin H., Milliken T., Mwangi P., Sangalakula L., Skinner D., Underwood F. 2013. Status of African Elephant Populations and Levels of Illegal Killing and the Illegal Trade in Ivory: A Report to the African Elephant Summit Gland, Switzerland: IUCN. 31 p. Available from https://cmsdata.iucn.org/downloads/african_elephant_summit_ background_document_2013_en.pdf. Retrieved on 22 April 2018.
Burton A.C., Neilson E., Moreira D., Ladle A., Steenweg R., Fisher J.T., Bayne E., Boutin S. 2015. Wildlife camera trapping: A review and recommendations for linking surveys to ecological processes. Journal of Applied Ecology 52: 675-685. DOI: 10.1111/1365- 2664.12432
Chang'a A., de Souza N., Muya J., Keyyu J., Mwakatobe A., Malugu L., Ndossi H.P., Konuche J., Omondi R., Mpinge A., Hahn N., Palminteri S., Olson D. 2016. Scaling-up the use of chili fences for reducing human-elephant conflict across landscapes in Tanzania. Tropical Conservation Science 9: 921-930. DOI: 10.1177/194008291600900220
Chuah A.M., Lee Y.-C., Yamaguchi T., Takamura H., Yin L.- J., Matoba T. 2008. Effect of cooking on the antioxidant properties of coloured peppers. Food Chemistry 111(1): 20-28. DOI: 10.1016/j.foodchem.2008.03.022
Csilléry G. 2006. Pepper taxonomy and the botanical description of the species. Acta Agronomica Hungarica 54(2): 151-166. DOI: 10.1556/AAgr.54.2006.2.5
Fairet E.M.M. 2012. Vulnerability to crop raiding an interdisciplinary investigation in Loango National Park, Gabon. PhD Thesis. Durham University, UK. Available from http://etheses.dur.ac.uk/6399/1/EmilieFairet_Thesis_Finaldraft_08022013.pdf
Hedges S., Gunaryadi D. 2010. Reducing human-elephant conflict: Do chillies help deter elephants from entering crop fields?. Oryx 44(1): 139-146. DOI: 10.1017/ S0030605309990093
Hoare R. 2015. Lessons from 20 years of human-elephant conflict mitigation in Africa. Human Dimensions of Wildlife 20(4): 289-295. DOI: 10.1080/10871209.2015.1005855
Howe E.J., Buckland S.T., Després-Einspenner M.-L., Kühl H.S. 2017. Distance sampling with camera traps. Methods in Ecology and Evolution 8(11): 1558-1565. DOI: 10.1111/2041-210X.12790
Inogwabini B.-I., Mbende L., Bakanza A., Bokika J.C. 2013. Crop damage done by elephants in Malebo Region, Democratic Republic of Congo. Pachyderm 54: 59-65.
Karidozo M., Osborn F.V. 2015. Community Based Conflict Mitigation Trials: Results of Field Tests of Chilli as an Elephant Deterrent. Journal of Biodiversity & Endangered Species 3(1): 144. DOI: 10.4172/2332- 2543.1000144
Lahm S.A. 1993. Ecology and Economics of Human/ Wildlife Interaction in Northeastern Gabon. PhD Thesis. New York University, USA.
Le Bel S., La Grange M., Drouet N. 2015. Repelling elephants with a chilli pepper gas dispenser: Field tests and practical use in Mozambique, Zambia and Zimbabwe from 2009 to 2013. Pachyderm 56: 87-96.
Lee M.E., Alonso A., Dallmeier F., Campbell P., Pauwels O.S. 2006. The Gamba complex of protected areas: An illustration of Gabon's biodiversity. Bulletin of the Biological Society of Washington 12: 229-241.
Maisels F., Strindberg S., Blake S., Wittemyer G., Hart J., Williamson E.A., Aba'a R., Abitsi G., Ambahe R.D., Amsini F., Bakabana P.C., Hicks T.C., Bayogo R.E., Bechem M., Beyers R.L., Bezangoye A.N., Boundja P., Bout N., Akou M.E., Bene L.B., Fosso B., Greengrass E., Grossmann F., Ikamba-Nkulu C., Ilambu O., Inogwabini B.I., Iyenguet F., Kiminou F., Kokangoye M., Kujirakwinja D., Latour S., Liengola I., Mackaya Q., Madidi J., Madzoke B., Makoumbou C., Malanda G.A., Malonga R., Mbani O., Mbendzo V.A., Ambassa E., Ekinde A., Mihindou Y., Morgan B.J., Motsaba P., Moukala G., Mounguengui A., Mowawa B.S., Ndzai C., Nixon S., Nkumu P., Nzolani F., Pintea L., Plumptre A., Rainey H., de Semboli B.B., Serckx A., Stokes E., Turkalo A., Vanleeuwe H., Vosper A., Warren Y. 2013. Devastating Decline of Forest Elephants in Central Africa. PLoS ONE 8: E59469. DOI: 10.1371/journal.pone.0059469
Mariki S.B., Svarstad H., Benjaminsen T.A. 2015. Elephants over the Cliff: Explaining Wildlife Killings in Tanzania. Land Use Policy 44: 19-30. DOI: 10.1016/j. landusepol.2014.10.018
Ngama S., Korte L., Bindelle J., Vermeulen C., Poulsen J.R. 2016. How Bees Deter Elephants: Beehive Trials with Forest Elephants (Loxodonta africana cyclotis) in Gabon. PLoS ONE 11: E0155690. DOI: 10.1371/ journal.pone.0155690
O'Connell A.F., Nichols J.D., Karanth K.U. (Eds.). 2011. Camera Traps in Animal Ecology: Methods and Analyses. Springer Japan. 271 p. DOI: 10.1007/978- 4-431-99495-4
Ornelas-Paz J. de J., Martínez-Burrola J.M., Ruiz-Cruz S., Santana-Rodríguez V., Ibarra-Junquera V., Olivas G.I., Pérez-Martínez J.D. 2010. Effect of cooking on the capsaicinoids and phenolics contents of Mexican peppers. Food Chemistry 119(4): 1619-1625. DOI: 10.1016/j.foodchem.2009.09.054
Osborn F.V., Rasmussen L.E.L. 1995. Evidence for the effectiveness of an oleo-resin capsicum aerosol as a repellent against wild elephants in Zimbabwe. Pachyderm 20: 55-64.
Parker G.E., Osborn F.V. 2006. Investigating the potential for chilli Capsicum spp. to reduce human-wildlife conflict in Zimbabwe. Oryx 40(3): 343-346. DOI: 10.1017/S0030605306000822
Poulsen J.R., Koerner S.E., Moore S., Medjibe V.P., Blake S., Clark C.J., Akou M.E., Fay M., Meier A., Okouyi J., Rosin C., White L.J.T. 2017. Poaching empties critical Central African wilderness of forest elephants. Current Biology 27(4): R134-R135. DOI: 10.1016/j.cub.2017.01.023
R Development Core Team. 2017. R: A Language and Environment for Statistical Computing. Available from: Https://www.R-project.org/
Smit J., Pozo R.A., Cusack J.J., Nowak K., Jones T. 2017. Using camera traps to study the age-sex structure and behaviour of crop-using elephants Loxodonta africana in Udzungwa Mountains National Park, Tanzania. Oryx: 1-9. DOI: 10.1017/S0030605317000345
Srinivasan K. 2016. Biological Activities of Red Pepper (Capsicum annuum) and Its Pungent Principle Capsaicin: A Review. Critical Reviews in Food Science and Nutrition 56(9): 1488-1500. DOI: 10.1080/10408398.2013.772090
Tchamba M.N. 1995. The Problem Elephants of Kaélé: A Challenge for Elephant Conservation in Northern Cameroon. Pachyderm 19: 26-32.
Trolliet F., Huynen M.-C., Vermeulen C., Hambuckers A. 2014. Use of camera traps for wildlife studies. A review. Biotechnology, Agronomy, Society and Environment 18(3): 446-454.
Walker K.L. 2010. Moving away from prescriptive pachyderm palliatives: Toward an integrated assessment of farmer-elephant conflict in Gabon. PhD Thesis. University of Michigan, USA. 127 p.
Walker K.L. 2012. Labor costs and crop protection from wildlife predation: The case of elephants in Gabon. Agricultural Economics 43(1): 61-73. DOI: 10.1111/j.1574-0862.2011.00565.x
Wiafe E.D., Sam M.K. 2014. Evaluation of a low-tech method, pepper-grease, for combatting elephant crop-raiding activities in Kakum Conservation Area, Ghana. Pachyderm 55: 38-42.