Abstract
Objective:
Increasingly unpredictable shifts in climate are triggering public health crises globally. Southern Madagascar is particularly vulnerable to climate impacts, despite contributing to only 0.2% of global emissions. Though endemic in Madagascar, climate impacts such as below average rainfall have increased the severity of droughts, putting over half of the population in southern regions at risk of being food insecure in 2022. The following review examines: How can interventions surrounding the current food emergency in southern Madagascar center community-based knowledge in their strategies? Through a social-ecological approach, this review aims to holistically discuss the complexity of the climate and food crises in this region, which is a topic that has not been widely covered in published review articles thus far.
Methods:
We took a comprehensive and social-ecological approach by analyzing research pertaining to the impacts of colonial history, politics, economy, and culture on the current climate, ecology, and food systems of southern Madagascar.
Main findings:
Many current strategies to mitigate climate impacts and food security fail to incorporate community-based knowledge, leading to inequitable and ineffective interventions. Researchers who prioritize historical and cultural context illustrate how local knowledge may serve as a protective factor against climate impacts.
Conclusions:
As climate shifts exacerbate public health crises, aid organizations must center community perspectives in their interventions to foster equitable and sustainable outcomes.
Introduction
A social-ecological approach to climate adaptation and food security
Madagascar's vulnerable position as an island nation situated in the southwestern Indian Ocean, east of the African mainland, puts the country at high risk for drought, sandstorms, and cyclones. Drought is particularly worse in the southernmost regions of the island, where traditional communities including Mahafale, Karembola, Tandroy, Vezo, Mikea, and Masikoro reside. These communities largely depend on fishing, livestock, and agriculture, which are heavily impacted by climate variations. With a population of 3,717,000 in the three southernmost regions of Atsimo-Andrefana, Androy, and Anosy, ~40% of the population is facing crisis-level food insecurity (ACAPS, ) (see Figure 1). This review aims to use a social-ecological approach to explore the complex web of factors that help or hinder Malagasy resilience to food insecurity and adaptation to climate change.
Figure 1
The use of a social-ecological approach has shifted global health research to integrate social, economic, ecological, cultural, political, and technological elements. Social-ecological systems are dynamic and dependent on historical elements, which precipitate present complexities (Petrosillo et al.,
Figure 2

Sociotype ecological framework showing stresses and coping strategies for food security. Italics show the dimensions of food security and sustainability (Peng et al.,
The authors of this review aimed to utilize their access to academic resources to provide evidence for the importance of community-led interventions and research in the context of southern Madagascar. It is essential for researchers to consider how they leverage their social location when conducting research and their incentives for doing so. Petteway et al. (
Methods
The authors reviewed articles pertaining to the research question from June 2022 to September 2023. Inclusion and exclusion criteria were broadly defined by relevance to the context of the current climate and food security challenges in the southern regions. Upon new findings, research concepts were expanded to include specific agricultural and cultural practices. Numerous articles were found through the snowball method or tracking citations in relevant literature. The most common reason for article exclusion was lack of context specificity to southern Madagascar. This review includes a range of recent publications for accurate climate, health, economic, and demographic data, as well as more foundational literature dating back to 1988 to describe contextually relevant historical and ethnographic information.
Geographic limitations
The following review seeks to promote a holistic perspective in a relatively specific context of food security and climate vulnerability in the southernmost regions of Madagascar (Figure 1). However, the challenge in doing so parallels that of all complex circumstances, where such a goal becomes increasingly nuanced the more deeply it is unpacked. Therefore, within the discussed literature in this review, it is important to note that findings are pulled from various communities and geographical regions across the South in specific time frames. In other words, each study reviewed is situated in a unique context, therefore an analysis of the present literature places risk of generalization. An example would be the use of vocabulary including dina and fady (or faly), by which definitions are dynamic depending on the context in which it is being used. The authors recognize this limitation and seek to differentiate findings of each study introduced to their unique context to avoid generalization.
Evaluation of existing literature
Historical and political factors
Pre-colonial period
While the historical elements included in this review are not exhaustive, it is crucial to emphasize the role that colonization played in the country's physical environment, food systems, and economy. As put by Mitchell (
In the mid-eighteenth century, the Merina royal family had established a powerful monarchy in Imerina, a region situated within central Madagascar (Figure 3). Fanompoana, or unpaid laborers, were used throughout most of the 300 year Merina reign to perform agricultural work and food production (Campbell,
Figure 3

“The merina empire, Madagascar c 1830” (Campbell,
The Merina built a robust military, not only to expand and defend their kingdom domestically, but also to defend their territory against European colonists. During an unsuccessful French invasion in 1832, the Merina drafted children above 10 years of age to join the imperial army, gaining 15,790 recruits in 1 year. Eventually, the French defeated the Merina and gained control of Madagascar in 1895. The impact of the Merina rule was a widening wealth gap, a peasant class with no formal education after being pulled from schools to join the military, and an economic dependence on slavery and fanompoana (Campbell,
French colonization
In the early twentieth century, the new French colony simultaneously planned conservation and development initiatives, which sent contradictory messages to Malagasy farmers. While using forest resources to build roads, railways, bridges, and buildings, ten nature reserves were designated to prevent deforestation. As stated by Sodikoff (
Meanwhile, the Forest Service's conservation initiatives were underway in protected areas. The Forest Service consisted of Europeans and low-wage Malagasy employees who were responsible for surveilling land for hatsake farmers (Sodikoff,
Raketa
The prickly pear cactus (Opuntia monacantha), or raketa in Malagasy, was first introduced in 1769 by Frenchman Count Dolisie de Maudave to defend Fort Dauphin on the southeast coast from pirates with the plant's thorny thickets and hedges. Over time, southern Malagasy communities began to use raketa to their advantage. The plant became both an important source of water and nutrition and served as a physical barrier against intruders (Kaufmann,
Present context
In Cole's (
By the early twenty-first century, international aid funded up to 40% of Malagasy spending (Bohannon,
Although Andry Rajoelina was democratically elected as President in 2018, southern regions remain isolated from the political system and government programs (Hänke et al.,
Influence of socio-cultural practices
In the “Western” world, “the ethnic theory of identity draws on the notion that people are what they were born to be, and that birth into a group fixes a person's identity in time and space” (Astuti,
With little written history from Madagascar's indigenous people, tapasiry, or storytelling, is critical to the transmission of social memory, ecological knowledge, and the maintenance of cultural ties across generations (Douglass and Rasolondrainy,
Additionally, taboos are an important component of Malagasy culture and often influence the use of natural resources through the protection of species and habitats (Andriamarovololona and Jones,
However, reasons for breaking or disrespecting taboo include economic need, formal education elsewhere without taboo culture, decreases in social memory and tapasiry, and migration resulting in a break in the knowledge chain. Outsiders, such as missionary groups, have intentionally broken taboos and destroyed sacred forests to prove that there would be no consequences for the community (Andriamarovololona and Jones,
Economy
Ethnographic identity is important to understand both socio-cultural practices and economic identity. Over 90% of southern Madagascar lives below the poverty line by Western standards (ACAPS,
Through focus group interviews, Tucker et al. (
The southern Madagascar context views money as a vehicle to convert one commodity to another and not inherently valuable itself. The Economic Growth Model (EGM), built on the Western definition of poverty, argues that poverty can be solved by increasing industrial and technological advancements, expanding markets, increasing production and exports, and improving education and health care systems in low and middle income countries (LMICs). However, the focus group interviews show that many Masikoro people have the knowledge needed for farming, but lack essential tools and equipment, and Vezo people rely on renting fishing equipment to carry out their livelihoods. Based on their research, Tucker et al. (
These findings build off of previous research by Tucker (
Climate vulnerability
Despite emitting 0.2% of carbon emissions globally, Madagascar, and particularly the southern regions, experience extreme climate impacts (Climate Watch,
Figure 4

Southern Madagascar rainfall averages (Rainfall Averages,
Furthermore, the southern regions find themselves in numerous climate feedback loops, resulting in exploitation of the land for resources. This exacerbates climate impacts, lack of resources, and consequently further land exploitation such as deforestation and cattle raising. These practices involve silting, which can contribute to increased flooding and drought conditions, decreased biodiversity, and a degradation of soil and water quality, thereby resulting in decreased food availability (Weiskopf et al.,
The Mikea primary forest has been a major site of deforestation due to hatsake agriculture for maize production, logging practices, and extraction of forest resources to support an increasing population (Blanc-Pamard,
While these initiatives to protect biodiversity would increase availability of natural resources long-term, they had a paradoxical effect on local populations whose livelihoods depended on access to this land (Tucker,
Simultaneously, heavy rainfall, especially in deforested areas, degrades soil quality which decreases nutrient levels in crops. Projected changes in temperature and rainfall impact livestock due to limited food and water access. Smallholder farms are most vulnerable to climate events due to their dependence on the environment and limited financial resources. During the dry season, groundwater supplies become limited, resulting in poor hygiene practices and high pressure on functioning water points, which again contribute to a feedback loop of increased climate vulnerability and adverse health outcomes (Weiskopf et al.,
As climate impacts exacerbate, the country is forced to adapt to ways of living that lose traditional and cultural knowledge, resulting in the loss of social memory. However, areas which hold traditional knowledge and where disrespecting natural lands is considered taboo are more rich in biodiversity (Andriamarovololona and Jones,
To understand the region's climate vulnerability requires holistically understanding the community's perspectives on environmental and climate-related impacts. Some communities, particularly Vezo, Masikoro, and Mikea, living between Toliara and the port of Morombe (Figure 1), view subsistence risk to have cosmological causes, and to avoid losses caused by disrespected spirits, one should follow taboos (Tucker et al.,
Food emergency
Many Malagasy people survived the internal conflict-driven famines in the sixteenth and seventeenth centuries by hiding in the woods, foraging, and hunting wild animals (Rasolondrainy,
Figure 5

Southern Madagascar acute food insecurity situation for April to August 2022 and projections for September to November 2022 and December to March 2023 (Integrated Food Security Classification,
Recurrent drought has caused crop failure, food shortages, and increased poverty for smallholder farmers, all which contribute to malnutrition (Hänke et al.,
The food available to various cultural groups is strongly dependent on the climate and environmental conditions of the particular area in which they live. Similarly, food storage and production systems depend on the type of housing and community structure in which one resides, which is also influenced by the climate and environment (Kelly,
Cultural practices and taboos are also major factors that influence the type of food consumed. In the Mahafaly Plateau, located between the Onilahy River and Ampanihy in Figure 1, zebu cattle hold high socio-cultural value, with the size of a herd indicating one's wealth and social status, and an average of seventeen zebu per household. For some, zebu represent a sacred religious connection between the living and their ancestors, and the meat is often not consumed even during periods of extreme food insecurity (Astuti,
In a survey conducted in 2008 among 50 Mikea households before the Mikea National Park restricted their income and food production, “14% said they go ‘often' without eating, and 22% owned at least one goat.” In a survey conducted 9 years later, after the conservation of Mikea National Park began, 27% (of 48 households) “said they ‘often' go a day without eating, and only 6% owned at least one goat” (Tucker,
Figure 6

Madagascar Live Hunger Map (HungerMap LIVE,
In the Mahafaly region (southwest Atsimo-Andrefana region in Figure 6), coping strategies of food insecurity found by Hänke and Barkmann (
During periods of Kere in the Androy and Atsimo-Andrefana regions (Figure 6), there is significant unemployment due to decreased farming. As a result, many migrate North and send money to support their families. While this can supplement economic pressures, migration can simultaneously contribute to a breakdown in the family structure and Tapasiry, as men aged 18 to 40 most often leave their communities in search of employment (Douglass and Rasolondrainy,
Changes in available food resources, such as fish or crop yield, which is often linked to identity, were associated with “contexts of climate-driven resource scarcity, insecurity and loss of wealth, and long-distance migration” (Douglass and Rasolondrainy,
Discussion
Limitations or strengths of current interventions
There are numerous efforts being made by both aid organizations and communities themselves to address the high level of food insecurity the regions are experiencing. In a 2018 survey conducted by Hänke and Barkmann (
Hänke and Barkmann's (
Lemahieu et al. note that in Ambola, a coastal city south of Toliara (Figure 1), the remote and arid environment offers limited options for communities to diversify their livelihoods. Meanwhile, in Ambotsibotsike, a coastal city north of Toliara, proximity to markets has allowed for livelihood diversification when fishing activities have declined. It has been suggested that market proximity has influenced environmental awareness and understanding, allowing regulation and policies aimed at conservation to be more accepted (Lemahieu et al.,
While there are some positive economic outcomes from these interventions, behavior modification places the burden of conservation and sustainability planning on individuals rather than industrial-scale organizations, corporations, and the governments of higher-income countries. This simultaneously results in the loss of autonomy regarding land-use and cultural and subsistence practices (Tucker et al.,
Though Tucker et al. (
Recommendations
Following the social-ecological approach, the management of complex systems must be flexible and adaptive where outcomes are continuously evaluated for improvement (Petrosillo et al.,
Furthermore, research through a social-ecological lens captures how factors such as social ties were found to increase accessibility of land and sea-based resources, as well as maintain social support, knowledge, and protection. LID communities in southwestern Madagascar have expressed concern that erosion of social memory is degrading inheritance of cultural and ecological knowledge, which serve as key adaptive mechanisms that facilitate mobility and access to resources, making them essential for survival and resilience in a hypervariable environment (Douglass and Rasolondrainy,
A deeper and more granular understanding of local decision-making in this context may aid program designers and policy-makers to foster more effective interventions for natural resource management and food security response. Rasolondrainy (
Statements
Author contributions
Conceptualization and validation: EZ, EC, SM, CM, and CD. Formal analysis, investigation, methodology, resources, writing—original draft, and project administration: EZ and EC. Writing—review and editing: EZ, EC, SM, and CM. Supervision: SM, CM, and CD. All authors have contributed to the review, met authorship conditions, and approved the final manuscript. This is an original review that has not been published nor submitted to any other journal.
Funding
This study was funded by the Department of Global and Environmental Health at New York University.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
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Summary
Keywords
food security, climate change, southern Madagascar, social-ecological approach, community based interventions, drought, climate resilience
Citation
Zambiazzi E, Carr E, Mahazotahy S, Mahafake C and Dickey C (2023) Centering community-based knowledge in food security response and climate resilience in southern Madagascar. Front. Sustain. Food Syst. 7:1234588. doi: 10.3389/fsufs.2023.1234588
Received
05 June 2023
Accepted
30 October 2023
Published
17 November 2023
Volume
7 - 2023
Edited by
Shri Mohan Jain, University of Helsinki, Finland
Reviewed by
Sunny Kumar, Central University of South Bihar, India; Bram Tucker, University of Georgia, United States
Updates

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Copyright
© 2023 Zambiazzi, Carr, Mahazotahy, Mahafake and Dickey.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Emily Zambiazzi ez2137@nyu.eduElizabeth Carr ec4348@nyu.edu
†These authors have contributed equally to this work and share first authorship
Disclaimer
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.