General Environmental Science; General Biochemistry, Genetics and Molecular Biology; General Medicine
Résumé :
[en] This study was conducted on Manoka Island (Littoral Region of Cameroon) with the aim of analyzing climate change vulnerability and local adaptation strategies based on the local community’s perceptions and biophysical evidence. We used household surveys, focus group discussions, field observation, GIS, and remote sensing to collect data on variables of exposure, sensitivity, and adaptive capacity. Historical changes in rainfall and temperature, mangrove cover, and the occurrence of extreme climatic events were used as indicators of exposure. Property losses and income structure were used as indicators of sensitivity, while human, natural, social, financial, and physical assets represented adaptive capacity. 89 households were interviewed in the nine settlements of the island. Results show that Manoka Island is experiencing irregular rainfall patterns (with average annual values deviating from the mean by −1.9 to +1.8 mm) and increasing temperature (with annual values deviating from the mean by −1.2 to +3.12). The dynamics of the coastline between 1975 and 2017 using EPR show average setbacks of more than ±3 m/year, with erosion levels varying depending on the period and location. The number of households perceiving extreme climatic events like seasonal variability, flood, and rain storm was higher. From respondents’ perception, housing and health are the sectors most affected by climate change. The reported high dependence of households on fishing for income, their overall low livelihood diversification, and their poor access to climate information reported by 65% of respondents portray their poor adaptive capacity. Local response initiatives are ineffective and include among others constructing buildings on stilts and using car wheels to counter the advancement of seawater inland. The study concludes that households on Manoka Island are vulnerable to the impacts of climate change. Income diversification, mangrove reforestation, the development of sustainable supply chains for wood fuel, and sustainable fish smoking devices are the main pathways for adaptation planning in this area.
Disciplines :
Sciences de la terre & géographie physique
Auteur, co-auteur :
Fongnzossie, Evariste ; Advanced Teachers’ Training College for Technical Education, The University of Douala, Cameroon
Sonwa, Denis Jean; Center for International Forestry Research (CIFOR), Yaoundé, Cameroon
Mbevo Fendoung, Philippes ; Université de Liège - ULiège > Faculté des Sciences > Doct. sc. (géog. - paysage) ; Université de Liège - ULiège > Sphères
Kentatchime, Fabrice; IBAY SUP—HIES, High Institute of Environmental Sciences, Yaoundé, Cameroon
Mokam, Aurelie; IBAY SUP—HIES, High Institute of Environmental Sciences, Yaoundé, Cameroon
Tatuebu Tagne, Claude; Center for International Forestry Research (CIFOR), Yaoundé, Cameroon
Rim, Lydie Flora Essamba A.; Center for International Forestry Research (CIFOR), Yaoundé, Cameroon
Langue du document :
Anglais
Titre :
Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
IPCC, Masson-Delmotte V., Zhai P., Pirani A., Connors S. L., Péan C., Berger S., Caud N., Chen Y., Goldfarb L., Gomis M. I., Huang M., Leitzell K., Lonnoy E., Matthews J. B. R., Maycock T. K., Waterfield T., Yelekçi O., Yu R., Zhou B., Climate Change 2021 the Physical Science Basis 2021, Cambridge, UK Cambridge University Press
WMO, State Of the Climate in Africa 2019 2020, Geneva, Switzerland World Meteorological Organization
Spalding M., Blasco F., Field C., World Mangrove Atlas 1997, Okinawa, Japan The International Society for Mangrove Ecosystems
Bijlsma L., Ehler C. N., Klein R. J. T., Kulshrestha S. M., McLean R. F., Mimura N., Nicholls R. J., Nurse L. A., Perez Nieto H. E., Stakhiv Z., Turner R. K., Warrick R. A., Watson R. T., Zinyowera M. C., Moss R. H., Coastal zones and small islands. Climate Change 1995: Impacts, Adaptations and Mitigation of Climate Change: Scientific-Technical Analyses 1995, Cambridge, UK Cambridge University Press 289, 324
Yanes Luque A., Rodríguez-Báez J. A., Máyer Suárez P., Dorta Antequera P., Lopez-Diez A., Diaz-Pacheco J., Perez-Chacon E., Marine storms in coastal tourist areas of the Canary Islands. Natural Hazards 2021, 109, 1, 1297, 1325, 10.1007/s11069-021-04879-3
Ajonina G., Tchikangwa B., Chuyong G., Tchamba M., Les défis et perspectives de la formulation d'une méthodologie communautaire généralisable pour évaluer la vulnérabilité et l'adaptation des écosystèmes de mangrove aux impacts du changement climatique: expérience du Cameroun. Nature & Faune 2009, 24, 16, 26
Madeira D., Narciso L., Cabral H. N., Vinagre C., Thermal tolerance and potential impacts of climate change on coastal and estuarine organisms. Journal of Sea Research 2012, 70, 32, 41, 10.1016/j.seares.2012.03.002, 2-s2.0-84860337645
Ward R. D., Friess D. A., Day R. H., MacKenzie R. A., Impacts of climate change on mangrove ecosystems: a region by region overview. Ecosystem Health and Sustainability 2016, 2, 4, e01211, 10.1002/ehs2.1211, 2-s2.0-85008145498
UNEP-WCMC, Mangroves of West Africa, UNEP-WCMC Biodiversity Series 26 2007, Cambridge, UK UNEP-WCMC
MINEPDED, Les mangroves du Cameroun: État des lieux et gestion 2018, 2nd Yaoundé Cameroon MINEPDED
Dzalla Ngangué G. C., Mangrove de l'estuaire du wouri: enjeux de l'anthropisation d'un écosystème humide tropical et impacts environnementaux. 2013, Douala, Cameroon Université de Douala 446p,. Doctoral thesis
Mbevo Fendoung P., Tchindjang M., Fongnzossié E., Analyse Par Télédétection de la Vulnérabilité de la Réserve de Mangrove de Mabe Face aux Changements Climatiques, Entre 1986 et 2014 2017, Dakar, Senegal Université Cheikh Anta Diop de Dakar
CAM-ECO, Rapport de l'étude de base sur l'utilisation du bois énergie de mangrove 2019, Douala, Cameroon CAMECO
Tatuebu Tagne C., Cartographie de L'occupation/Utilisation Des Sols en vue de Réduire L'empreinte Carbone du Combustible Énergie sur l'île de Manoka (Cameroun) 2020, Yaoundé Cameroon CIFOR
Mboufack C. B., Analyse par télédétection de la dynamique de l'occupation du sol entre 1986 et 2017 dans la zone de Douala-Edea et identification des sites potentiels de mangroves à reboiser. 2020, Yaoundé Cameroon Université de Yaoundé Master thesis
Molua E. L., Lambi C. M., The Economic Impact of Climate Change on Agriculture in Cameroon 2007, Washington, DC, USA The World Bank Development Research Group Sustainable Rural and Urban Development Team
Mbevo Fendoung P., Tchindjang M., Steck B., Bopda A., Vulnérabilité et adaptation des populations de cap Cameroun aux risques naturels. Construire la ville portuaire de demain en Afrique Atlantique 2019, Havre, France EMS
Munji C. A., Bele M. Y., Nkwatoh A. F., Idinoba M. E., Somorin O. A., Sonwa D. J., Vulnerability to coastal flooding and response strategies: the case of settlements in Cameroon mangrove forests. Environmental Development 2013, 5, 54, 72, 10.1016/j.envdev.2012.10.002, 2-s2.0-84873299148
Mbevo Fendoung P., Gestion des risques naturels sur le littoral camerounais: cas de l'érosion côtière à Cap Cameroun et à Kribi. Mémoire de Master de spécialisation en Gestion des risques et catastrophes 2019, Liège, Belgium Université de Liège/Belgique
Fossi Fotsi Y., Pouvreau N., Brenon I., Onguene R., Etame J., Evolution du trait de cote de la façade sud de l'ile de Cap Cameroun dans l'estuaire du Wouri (Cameroun). Proceedings of the Climate and Impacts Workshop November 2018 Orsay, France
Evariste F. F., Denis Jean S., Victor K., Claudia M., Assessing climate change vulnerability and local adaptation strategies in adjacent communities of the Kribi-Campo coastal ecosystems, South Cameroon. Urban Climate 2018, 24, 1037, 1051, 10.1016/j.uclim.2017.12.007, 2-s2.0-85039716143
CAM-ECO, Rapport des enquêtes socio-économiques et environnementales réalisées dans la Foret Communautaire de mangroves de Manoka 2016, Douala Edéa, Cameroun CAM-ECO
IPCC, Climate Change 2007: Impacts, Adaptation and Vulnerability. Working Group II Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change 2007, Cambridge, UK Cambridge University Press
Turner B. L., Kasperson R. E., Matson P. A., McCarthy J. J., Corell R. W., Christensen L., Eckley N., Kasperson J. X., Luers A., Martello M. L., Polsky C., Pulsipher A., Schiller A., A framework for vulnerability analysis in sustainability science. Proceedings of the National Academy of Sciences 2003, 100, 14, 8074, 8079, 10.1073/pnas.1231335100, 2-s2.0-0037924465
Locatelli B., Herawati H., Brockhaus M., Idinoba M., Kanninen M., Methods and Tools for Assessing the Vulnerability of Forests and People to Climate Change 2008, Bogor, Indonesia CIFOR
Wongbusarakum S., Loper C., Indicators to Assess Community-Social Vulnerability to Climate Change 2011, Gland, Switzerland Coral Reef InitiativeS for the Pacific (CRISP) and IUCN
Magnan A., Proposition d'une trame de recherche pour appréhender la capacité d'adaptation au changement climatique. VertigO 2009, 9, 3
Dolan A. H., Walker I. J., Understanding vulnerability of coastal communities to climate change related risks. Journal of Coastal Research 2004, 39, 1317, 1324
Klein R. J. T., Nicholls R. J., Feenstra J. F., Burton I., Smith J. B., Tol R. S. J., Coastal zones. Handbook on Methods for Climate Change Impact Assessment and Adaptation Strategies, Version 2.0. 7 1998, Amsterdam, Netherlands Vrije Universiteit 1, 36
Thieler E. R., Himmelstoss E. A., Zichichi J. L., Ergul A., Digital Shoreline Analysis System (DSAS) Version 4.0-an ArcGIS Extension for Calculating Shoreline Change 2009, U.S. Geological Survey Open-File Report
Oyedotun T. D. T., Shoreline geometry: DSAS as a tool for historical trend analysis. Geomorphological techniques 2014, 12, 2047, 0371
Himmelstoss E. A., Zichichi J. L., Thieler E. R., Ergul A., Digital Shoreline Analysis System (DSAS) Version 4.3 an ArcGIS Extension for Calculating Shoreline Change 2009, Reston, VA, USA U.S. Geological Survey
Jamont M. F., Etude des Aléas Naturels sur le Sud Vendée et Marais Poitevin. Rapport de Phase 2 Caractérisation des Aléas de Référence 2004, Nantes, France Direction Départementale des Territoires et de la Mer de la Vendée
Gehendra B. G., Community based climate change vulnerability assessment tools and methodologies; Enhancing community adaptation to climate change. Proceedings of the Asia-Pacific Climate Change Adaptation Forum March 2012 Bangkok, Thailand
Fahad S., Hossain M. S., Huong N. T. L., Nassani A. A., Haffar M., Naeem M. R., An assessment of rural household vulnerability and resilience in natural hazards: evidence from flood prone areas. Environment, Development and Sustainability 2022, 10.1007/s10668-022-02280-z
McSweeney C., New M., Lizcano G., UNDP CLIMATE change country profiles Cameroon. 2010,. https://www.geog.ox.ac.uk/research/climate/projects/undp-cp/UNDP_reports/Cameroon/Cameroon.lowres.report.pdf
Mounganga M. D., Erosion Côtière et Risques Littoraux Face aux Changements Climatiques: Essai D'analyses Comparatives des Indicateurs de Vulnérabilité à Libreville (Gabon) et Pointe et Pointe-Noire (Congo) 2009, 14e colloque international de l'IEPF ET du SIFEE
Othman M. A., Value of mangroves in coastal protection. Hydrobiologia 1994, 285, 1-3, 277, 282, 10.1007/BF00005674, 2-s2.0-0028669873
Drejza S., Friesinger S., Bernatchez P., Vulnerability of road infrastructure in Eastern Quebec to Coastal Erosion and Flooding in a Changing Context climate 2014, Rimouski, Canada University of Quebec at Rimouski
Fahad S., Jing W., Evaluation of Pakistani farmers' willingness to pay for crop insurance using contingent valuation method: the case of Khyber Pakhtunkhwa province. Land Use Policy 2018, 72, 570, 577, 10.1016/j.landusepol.2017.12.024, 2-s2.0-85039043038
Fahad S., Wang J., Farmers' risk perception, vulnerability, and adaptation to climate change in rural Pakistan. Land Use Policy 2018, 79, 301, 309, 10.1016/j.landusepol.2018.08.018, 2-s2.0-85052247211
Fahad S., Wang J., Climate change, vulnerability, and its impacts in rural Pakistan: a review. Environmental Science & Pollution Research 2020, 27, 2, 1334, 1338, 10.1007/s11356-019-06878-1
Su F., Song N., Ma N., Sultanaliev A., Ma J., Xue B., Fahad S., An assessment of poverty alleviation measures and sustainable livelihood capability of farm households in rural China: a sustainable livelihood approach. Agriculture 2021, 11, 12, 1230, 10.3390/agriculture11121230
