Cargando…

Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon

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 observati...

Descripción completa

Detalles Bibliográficos
Autores principales: Fongnzossie, Evariste, Sonwa, Denis Jean, Mbevo, Philippes, Kentatchime, Fabrice, Mokam, Aurelie, Tatuebu Tagne, Claude, Rim, Lydie Flora Essamba A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9467813/
https://www.ncbi.nlm.nih.gov/pubmed/36105735
http://dx.doi.org/10.1155/2022/7546519
_version_ 1784788273627922432
author Fongnzossie, Evariste
Sonwa, Denis Jean
Mbevo, Philippes
Kentatchime, Fabrice
Mokam, Aurelie
Tatuebu Tagne, Claude
Rim, Lydie Flora Essamba A.
author_facet Fongnzossie, Evariste
Sonwa, Denis Jean
Mbevo, Philippes
Kentatchime, Fabrice
Mokam, Aurelie
Tatuebu Tagne, Claude
Rim, Lydie Flora Essamba A.
author_sort Fongnzossie, Evariste
collection PubMed
description 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.
format Online
Article
Text
id pubmed-9467813
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Hindawi
record_format MEDLINE/PubMed
spelling pubmed-94678132022-09-13 Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon Fongnzossie, Evariste Sonwa, Denis Jean Mbevo, Philippes Kentatchime, Fabrice Mokam, Aurelie Tatuebu Tagne, Claude Rim, Lydie Flora Essamba A. ScientificWorldJournal Research Article 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. Hindawi 2022-09-05 /pmc/articles/PMC9467813/ /pubmed/36105735 http://dx.doi.org/10.1155/2022/7546519 Text en Copyright © 2022 Evariste Fongnzossie et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Fongnzossie, Evariste
Sonwa, Denis Jean
Mbevo, Philippes
Kentatchime, Fabrice
Mokam, Aurelie
Tatuebu Tagne, Claude
Rim, Lydie Flora Essamba A.
Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title_full Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title_fullStr Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title_full_unstemmed Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title_short Climate Change Vulnerability Assessment in Mangrove-Dependent Communities of Manoka Island, Littoral Region of Cameroon
title_sort climate change vulnerability assessment in mangrove-dependent communities of manoka island, littoral region of cameroon
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9467813/
https://www.ncbi.nlm.nih.gov/pubmed/36105735
http://dx.doi.org/10.1155/2022/7546519
work_keys_str_mv AT fongnzossieevariste climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT sonwadenisjean climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT mbevophilippes climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT kentatchimefabrice climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT mokamaurelie climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT tatuebutagneclaude climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon
AT rimlydiefloraessambaa climatechangevulnerabilityassessmentinmangrovedependentcommunitiesofmanokaislandlittoralregionofcameroon