The use of natural resources to improve household income, health, and nutrition within the forests of Kianjavato, Madagascar

Authors

  • Cortni Borgerson I. Harvard T.H. Chan School of Public Health Department of Environmental Health 401 Park Drive, Boston, MA 02115 II. MAHERY (Madagascar Health and Environmental Research) Maroantsetra 512, Madagascar III. Department of Anthropology, Montclair State University, 1 Normal Ave, Montclair, NJ 07043
  • Steig E. Johnson Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4
  • Edward E. Louis Grewcock Center for Conservation and Research, Omaha’s Henry Doorly Zoo and Aquarium, 3701 S 10th St, Omaha, NE 68107
  • Sheila M. Holmes Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4
  • Anjaranirina Evelin Jean Gasta MAHERY (Madagascar Health and Environmental Research), Maroantsetra 512
  • Hervet J. Randriamady MAHERY (Madagascar Health and Environmental Research), Maroantsetra 512
  • Christopher D. Golden I. Harvard T.H. Chan School of Public Health, Department of Environmental Health, 401 Park Drive, Boston, MA 02115 II. MAHERY (Madagascar Health and Environmental Research), Maroantsetra 512, Madagascar VI. Harvard University Center for the Environment, 26 Oxford St. 4th Floor, Cambridge, MA 02138

Keywords:

Hunting, Bushmeat, Livelihoods, Traditional medicine, Precious stones, Prolemur simus, Lemurs, Tenrecs, Bats, Euplerids, Non-timber forest products, Natural resource use

Abstract

Understanding natural resource extraction in Madagascar is key to developing wider conservation and management strategies that ensure the continued delivery of essential ecosystem services, and the development of health and economic strategies to meet the demands of a growing human population. In the Kianjavato lowland rainforest of southeastern Madagascar, 78% of lemur species, 83% of native carnivoran species, and 67% of frugivorous bat species are threatened with extinction. All three of these groups of mammals are commonly hunted for food in other regions of Madagascar, yet we know little about current levels of hunting or whether the use of forest resources significantly affects human welfare in this region. We used health assessments of 1267 Kianjavato residents and semi-structured interviews of members of 336 households in 17 communities in Kianjavato to investigate human-environmental interactions. We found high prevalence of child and teenage malnutrition. More than half of the population under 20 years old was stunted, more than half was underweight, and more than one fifth was wasted. Further, one in six residents were anemic. We found that Kianjavato’s forests provided essential ecosystem services for its rural communities. As Kianjavato’s forests are altered to meet the needs of a growing human population, these direct-use ecosystem services (such as the use of wild animals for food or plants for medicine) are unable to similarly expand to meet the basic needs of the families living in these forests. A worrying proportion of the Kianjavato population depends on forests to meet their healthcare, nutritional, and economic needs, yet they may be failing to do so. All surveyed households (100%) depended on forests to meet their healthcare needs and 40% of the regional economy involved the extraction of finite forest resources (i.e., precious stones). Most households consumed very little wildlife (two animals per household per year) and the great majority (83%) of the forest animals they ate were not threatened with extinction. Forty percent of wildlife were caught illegally. Although hunting is likely not imperiling local wildlife at present, 16% of the Kianjavato population hunts wildlife and 20% are malnourished. The ecosystem services of Kianjavato’s forests may currently be insufficient to meet the needs of residents. Therefore, targeted efforts to increase local access to the healthcare system and to improve household nutrition and economy by improving the production and stability of local agricultural products may increase the long-term sustainability of both wildlife hunting, household incomes, and regional food security. Efforts such as these that can expand with the growing population to meet future needs may help secure the sustainable use of essential ecosystem services for the long term, improving the health of local people and maintaining the integrity of the forests in which they live.

 

Résumé

Comprendre l'utilisation des ressources naturelles à Madagascar est essentiel pour développer des stratégies de conservation et de gestion plus larges qui permettent à la fois de fournir des services écosystémiques et de développer des stratégies sanitaires et économiques afin de répondre aux besoins d'une population humaine toujours croissante. Dans la forêt tropicale humide de basse altitude de Kianjavato dans le sud-est de Madagascar, 78% des espèces de lémuriens, 83% des espèces de carnivores indigènes et 67% des espèces de chauves-souris frugivores sont menacés d'extinction. Ces trois groupes de mammifères sont généralement chassés dans d'autres régions de Madagascar, mais nous en savons peu sur les niveaux actuels de chasse ou si l'utilisation des ressources forestières affecte significativement le bien-être humain dans cette région. Nous avons conduit une évaluation sanitaire sur 1267 habitants de Kianjavato, ainsi que des entretiens semi-structurés avec des membres de 336 ménages dans 17 communautés de Kianjavato afin d’étudier les interactions entre l’Homme et l’environnement. Nous avons constaté une forte prévalence de la malnutrition chez les enfants et les adolescents. Plus de la moitié de la population âgée de moins de 20 ans souffre d'un retard de croissance, plus de la moitié d’une insuffisance pondérale et plus d'un cinquième d’émaciation. En outre, un résident sur six est anémique. Nous avons constaté que les forêts de Kianjavato fournissent des services écosystémiques essentiels à ces communautés rurales. Comme les forêts de Kianjavato sont altérées pour répondre aux besoins d'une population croissante, ces services écosystémiques à usage direct (tels que la consommation d'animaux sauvages ou des plantes médicinales) ne peuvent plus couvrir les besoins fondamentaux des familles qui y vivent. Une proportion inquiétante de la population de Kianjavato dépend des forêts quant à ses besoins sanitaires, nutritionnels et économiques, cependant ces dernières ne peuvent plus y pourvoir entièrement. Tous les ménages enquêtés (100%) comptent sur la forêt pour la satisfaction de leurs besoins sanitaires. Par ailleurs, l’exploitation de ressources forestières finies (extraction de pierres précieuses) représente 40% de l’économie régionale. La plupart des ménages consommaient très peu d'animaux sauvages (deux animaux par ménage par an) et la grande majorité (83%) des animaux forestiers qu'ils mangeaient n'étaient pas menacés d'extinction. Cependant, 40% de ces animaux forestiers ont été capturés de manière illicite. Certes la chasse ne menace pas actuellement la faune locale mais 16% de la population de Kianjavato reconnaît s’y adonner et 20% souffrent de malnutrition. Les services écosystémiques s’avèrent actuellement insuffisants pour répondre aux besoins des résidents. Il est par conséquent nécessaire de cibler les efforts pour accroître l’accès local au système de santé, ensuite pour améliorer la nutrition et l’économie des ménages (améliorer la production et la stabilité des produits agricoles locaux), et tout ceci dans le but d’augmenter la viabilité à long terme de la chasse, des revenus et de la sécurité alimentaire dans cette région. De tels efforts lorsqu’ils prennent en compte la croissance de la population - et donc ses besoins futurs accrus —peuvent aider à assurer l’utilisation durable des services écosystémiques, à améliorer la santé des populations locales, et en fin de compte, à maintenir l’intégrité des forêts dans lesquelles elles vivent.

References

Andriamparany, J. N., Brinkmann, K., Wiehle, M., Jeannoda, V. and Buerkert, A. 2015. Modelling the distribution of four Dioscorea species on the Mahafaly Plateau of south-western Madagascar using biotic and abiotic variables. Agriculture, Ecosystems & Environment 212, 20: 38‒48. <https://doi.org/10.1016/j.agee.2015.06.019>

Barrett, C. B., Travis, A. J. and Dasgupta, P. 2011. On biodiversity conservation and poverty traps. Proceedings of the National Academy of Sciences of the United States of America 108, 34: 13907‒13912. <https://doi.org/10.1073/pnas.1011521108>

Borgerson, C. 2015. The effects of illegal hunting and habitat on two sympatric endangered primates. International Journal of Primatology 36, 1: 74‒93. <https://doi.org/10.1007/s10764-015-9812-x>

Borgerson, C. 2016. Optimizing conservation policy: The importance of seasonal variation in hunting and meat consumption on the Masoala peninsula of Madagascar. Oryx 50, 3: 405‒418. <https://doi.org/10.1017/S0030605315000307>

Borgerson, C., McKean, M. A., Sutherland, M. R. and Godfrey, L. R. 2016. Who hunts lemurs and why they hunt them. Biological Conservation 197: 124‒130. <https://doi.org/10.1016/j.biocon.2016.02.012>

Borgerson, C., Rajaona, D., Razafindrapaoly, B., Rasolofoniaina, B. J. R., Kremen, C. and Golden, C. D. 2017. Links between food insecurity and the unsustainable hunting of wildlife in a UNESCO world heritage site in Madagascar. The Lancet 389: S3. <https://doi.org/10.1016/S0140-6736(17)31115-7>

Borgerson, C., Anjaranirina, E. J. G., Vonona, M. A., Vonona, T. and Golden, C. D. 2018. An evaluation of the interactions among wildlife hunting, human health, and household economies in the Lake Alaotra wetland complex of Madagascar. Madagascar Conservation & Development 13, 1. <https://doi.org/10.4314/mcd.v13i1.5>

Centers for Disease Control and Prevention. 2000. National Center for Health Statistics CDC growth charts, United States. <https://www.cdc.gov/growthcharts/cdc_charts.htm>

Dunham, A. E., Erhart, E., Overdorff, D. J. and Wright, P. C. 2008. Evaluating effects of deforestation, hunting, and El Niño events on a threatened lemur. Biological Conservation 141, 1: 287‒297. <https://doi.org/10.1016/j.biocon.2007.10.006>

Dunham, A. E., Erhart, E. and Wright, P. 2011. Global climate cycles and cyclones: Consequences for rainfall patterns and lemur reproduction in southeastern Madagascar. Global Change Biology 17, 1: 219‒227. <https://doi.org/10.1111/j.1365-2486.2010.02205.x>

Godfrey, L. R. and Rasoazanabary, E. 2011. Demise of the bet hedgers: A case study of human impacts on past and present lemurs of Madagascar. In: The Anthropology of Extinction: Essays on Culture and Species Death. G. M. Sodikoff (ed.), pp 165‒199. Indiana University Press, Bloomington and Indianapolis, USA.

Golden, C. D. 2014. Spiritual roots of the land: hierarchy and relationships of the religious cosmologies of humans and their environment in the Maroantsetra region of Madagascar. Worldviews: Global Religions, Culture, and Ecology 18, 3: 255‒268. <https://doi.org/10.1163/15685357-01802010>

Golden, C. D., Fernald, L. C. H., Brashares, J. S., Rasolofoniaina, B. J. R. and Kremen, C. 2011. Benefits of wildlife consumption to child nutrition in a biodiversity hotspot. Proceedings of the National Academy of Sciences of the United States of America 108, 49: 19653‒19656. <https://doi.org/10.1073/pnas.1112586108>

Golden, C. D., Rasolofoniaina, B. J. R., Anjaranirina, E. J. G., Nicolas, L., Ravaoliny, L. and Kremen, C. 2012. Rainforest pharmacopeia in Madagascar provides high value for current local and prospective global uses. PLoS ONE 7, 7: e41221. <https://doi.org/10.1371/journal.pone.0041221>

Golden, C. D., Wrangham, R. W. and Brashares, J. S. 2013. Assessing the accuracy of interviewed recall for rare, highly seasonal events: the case of wildlife consumption in Madagascar. Animal Conservation 16, 6: 597‒603. <https://doi.org/10.1111/acv.12047>

Golden, C. D., Rabehatonina, J. G. C., Rakotosoa, A. and Moore, M. 2014a. Socio-ecological analysis of natural resource use in Betampona Strict Natural Reserve. Madagascar Conservation & Development 9, 2: 83‒89. <https://doi.org/10.4314/mcd.v9i2.4>

Golden, C. D., Bonds, M. H., Brashares, J. S., Rasolofoniaina, B. J. R. and Kremen, C. 2014b. Economic valuation of subsistence harvest of wildlife in Madagascar. Conservation Biology 28, 1: 234‒243. <https://doi.org/10.1111/cobi.12174>

Golden, C. D., Gupta, A. C., Vaitla, B. and Myers, S. S. 2016. Ecosystem services and food security: assessing inequality at community, household and individual scales. Environmental Conservation 43, 4: 381‒388. <https://doi.org/10.1017/S0376892916000163>

Goodman, S. M. 2012. Les Carnivores de Madagascar. Association Vahatra, Antananarivo, Madagascar.

Goodman, S. M., Rasoanoro, M., Ralisata, M. and Ramasindrazana, B. 2014. The bats of the Kianjavato-Vatovavy region, lowland eastern central Madagascar. Malagasy Nature 8: 89‒102.

Ickowitz, A., Rowland, D., Powell, B., Salim, M. A., Sunderland, T. 2016. Forests, trees, and micronutrient-rich food consumption in Indonesia. PLoS ONE 11, 5: e0154139. <https://doi.org/10.1371/journal.pone.0154139>

IUCN. 2016. IUCN Red List of Threatened Species. <http://www.iucnredlist.org> accessed 25 May 2018.

Jenkins, R. K. B., Keane, A., Rakotoarivelo, A. R., Rakotomboavonjy, V., Randrianandrianina, F. H., et al. 2011. Rainforest pharmacopeia in Madagascar provides high value for current local and prospective global uses. PLoS ONE 7, 7: e41221. <https://doi.org/10.1371/journal.pone.0041221>

Jones, J. P. G., Andriamarovololona, M. M., Hockley, N., Gibbons, J. M. and Milner-Gulland, E. J. 2008. Testing the use of interviews as a tool for monitoring trends in the harvesting of wild species. Journal of Applied Ecology 45, 4: 1205‒1212. <https://doi.org/10.1111/j.1365-2664.2008.01487.x>

Keller, E. 2009. The danger of misunderstanding ‘culture’. Madagascar Conservation & Development. 4, 2: 82‒85. <https://doi.org/10.4314/mcd.v4i2.48647>

Kremen, C., Raymond, I., Lance, K. 1998. An interdisciplinary tool for monitoring conservation impacts in Madagascar. Conservation Biology 12, 3: 549‒563. <https://doi.org/10.1111/j.1523-1739.1998.96374.x>

Kremen, C., Razafimahatratra, V., Guillery, R. P., Rakotomalala, J., Weiss, A. and Ratsisompatrarivo, J.-S. 1999. Designing the Masoala National Park in Madagascar based on biological and socioeconomic data. Conservation Biology 13, 5: 1055‒1068. <https://doi.org/10.1046/j.1523-1739.1999.98374.x>

Manjaribe, C., Frasier, C. L., Rakouth, B. and Louis, E. E. 2013. Ecological restoration and reforestation of fragmented forests in Kianjavato, Madagascar. International Journal of Ecology 2013: #726275. <https://doi.org/10.1155/2013/726275>

MEFT & ONE (Ministère de L’Environnement, des Eaux et Forêts et du Tourisme & Office National pour l’Environnement). 2008. Tableau de Bord Environmental; Région Vatovavy Fitovinany. Available at <https://www.pnae.mg/tbe/region-vatovavy-fitovinany.html>

Milner-Gulland, E. J. 2012. Interactions between human behaviour and ecological systems. Philosophical Transactions of the Royal Society B 367, 1586: 270‒278. <https://doi.org/10.1098/rstb.2011.0175>

Myers, S. S., Gaffikin, L., Golden, C. D., Ostfeld, R. S., Redford, K. H., et al. 2013. Human health impacts of ecosystem alteration. Proceedings of the National Academy of Sciences of the United States of America 110, 47: 18753‒18760. <https://doi.org/10.1073/pnas.1218656110>

Norscia, I. and Borgognini-Tarli, S. M. 2006. Ethnobotanical reputation of plant species from two forests of Madagascar: A preliminary investigation. South African Journal of Botany 72, 4: 656‒660. <https://doi.org/10.1016/j.sajb.2006.04.004>

Novy, J. W. 1997. Medicinal plants of the eastern region of Madagascar. Journal of Ethnopharmacology 55, 2: 119‒126. <https://doi.org/10.1016/S0378-8741(96)01489-4>

Pattanayak, S. K. and Sills, E. O. 2001. Do tropical forests provide natural insurance? The microeconomics of non-timber forest product collection in the Brazilian Amazon. Land Economics 77, 4: 595‒612. <https://doi.org/ 10.2307/3146943>

Ralston, H. J. 1958. Energy-speed relation and optimal speed during level walking. Internationale Zeitschrift für angewandte Physiologie einschliesslich Arbeitsphysiologie 17, 4: 277–283. <https://doi.org/10.1007/BF00698754>

Randriamamonjy, V. C., Keane, A., Razafimanahaka, H. J., Jenkins, R. K. B. and Jones, J. P. G. 2015. Consumption of bushmeat around a major mine, and matched communities, in Madagascar. Biological Conservation 186: 35‒43. <https://doi.org/10.1016/j.biocon.2015.02.033>

Randrianandrianina, F. H., Racey, P. A. and Jenkins, R. K. B. 2010. Hunting and consumption of mammals and birds by people in urban areas of western Madagascar. Oryx 44, 3: 411‒415. <https://doi.org/10.1017/S003060531000044X>

Randrianarivony, T. N., Ramarosandratana, A. V., Andriamihajarivo, T. H., Rakotoarivony, F., Jeannoda, V. H., et al. 2017. The most used medicinal plants by communities in Mahaboboka, Amboronabo, Mikoboka, Southwestern Madagascar. Journal of Ethnobiology and Ethnomedicine 13: #19. <https://doi.org/10.1186/s13002-017-0147-x>

Randriamiharisoa, M. N., Kuhlman, A. R., Jeannoda, V., Rabarison, H., Rakotoarivelo, N., et al. 2015. Medicinal plants sold in the markets of Antananarivo, Madagascar. Journal of Ethnobiology and Ethnomedicine 11: #60. <https://doi.org/10.1186/s13002-015-0046-y>

Rasoanaivo, P. 1990. Rain forests of Madagascar: sources of industrial and medicinal plants. Ambio 19, 8: 421‒424.

Rasoanaivo, P., Petitjean, A., Ratsimamanga-Urveg, S. and Rakoto-Ratsimamanga, A. 1992. Medicinal plants used to treat malaria in Madagascar. Journal of Ethnopharmacology 37, 2: 117‒127. <https://doi.org/10.1016/0378-8741(92)90070-8>

Razafimanahaka, J. H., Jenkins, R. K. B., Andriafidison, D., Randrianandrianina, F., Rakotomboavonjy, V., et al. 2012. Novel approach for quantifying illegal bushmeat consumption reveals high consumption of protected species in Madagascar. Oryx 46, 4: 584‒592. <https://doi.org/10.1017/S0030605312000579>

Redford, K. H., Myers, S. S., Ricketts, T. H. and Osofsky, S. A. 2014. Human health as a judicious conservation opportunity. Conservation Biology 28, 3: 627‒629. <https://doi.org/10.1111/cobi.12290>

Reuter, K. E., Randell, H., Wills, A. R., Janvier, T. E., Belalahy, T. R. and Sewall, B. J. 2016a. Capture, movement, trade, and consumption of mammals in Madagascar. PLoS ONE 11, 2: e0150305. <https://doi.org/10.1371/journal.pone.0150305>

Reuter, K. E., Randell, H., Wills, A. R. and Sewall, B. J. 2016b. The consumption of wild meat in Madagascar: drivers, popularity and food security. Environmental Conservation 43, 3: 287‒283. <https://doi.org/10.1017/S0376892916000059>

Rowland, D., Ickowitz, A., Powell, B., Nasi, R. and Sunderland, T. 2017. Forest foods and healthy diets: quantifying the contributions. Environmental Conservation 44, 2: 102‒114. <https://doi.org/10.1017/S0376892916000151>

Styger, E., Rakotoarimanana, J. E. M., Rabevohitra, R., Fernandes, E. C. M. 1999. Indigenous fruit trees of Madagascar: potential components of agroforestry systems to improve human nutrition and restore biological diversity. Agroforestry Systems 46, 3: 289–310. <https://doi.org/10.1023/A:1006295530509>

Sunderland, T., Abanda, F., de Camino, R. V., Matakala, F., May, P. H., et al. 2013. Sustainable forestry and food security and nutrition. Technical Report 11. CFS-HLPE/FAO. <http://www.fao.org/3/a-i7395e.pdf>

WHO (World Health Organization). 2012. WHO Global Database on Child Growth and Malnutrition, Madagascar. 13 January 2012. Available at <https://goo.gl/1JsvCd>

Wilkie, D. S., Wieland, M., Boulet, H., Le Bel, S., van Vliet, N., et al. 2016. Eating and conserving bushmeat in Africa. African Journal of Ecology 54, 4: 402‒414. <https://doi.org/10.1111/aje.12392>

Wright, P. C., Johnson, S. E., Irwin, M. T., Jacobs, R., et al. 2008. The crisis of the Critically Endangered Greater bamboo lemur (Prolemur simus). Primate Conservation: 23: 5‒17. <https://doi.org/10.1896/052.023.0102>

Gold mining in Kianjavato (Photo by Ed Louis); Madagascar Conservation & Development

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