The dietary impacts of drought in a traditional pastoralist economy

The dietary impacts of drought in a traditional pastoralist economy
复制标题

干旱对传统游牧经济的饮食影响

DOI:
10.1002/ajhb.23803
复制
发表时间:
2023
影响因子:
2.9
通讯作者:
Scelza, Brooke
Scelza, Brooke
中科院分区:
医学4区
文献类型:
--
作者:
Prall, Sean;Scelza, Brooke

文献摘要

参考文献

被引文献

相似文献

目标干旱的畜牧业通常被理解为适应边缘环境的策略。随着牧民日益融入市场,新的饮食偏好和低质量的市场食品可能会侵蚀传统饮食。这些基于市场的饮食转变在持续干旱期间尤其成问题,传统食品的减少使牧民越来越依赖现金经济。在纳米比亚库内内地区的辛巴族中,禁止进入牲畜市场的殖民政策阻碍了他们进入以现金为基础的经济,使他们在干旱期间需要非传统食品来补充传统生活方式时容易受到粮食不安全的影响。为了了解长期干旱对饮食和粮食不安全的影响,我们收集了多年干旱期间4年的饮食广度和粮食不安全的纵向调查数据。方法参与者完成了5项粮食不安全调查并回顾了4年的饮食广度调查(N = 191-234)。此外,女性还完成了一项关于近期压力源的简短调查,包括健康和资源压力源 (N= 127)。我们使用一组多级模型来估计研究期间粮食不安全项目的变化和饮食广度的变化。结果多级模型按数据收集年份预测分数结果以及单个项目的反应。结果表明,在研究期间,平均粮食不安全状况增加了 43%,平均饮食范围下降了 15%。饮食回顾表明,干旱导致酸牛奶摄入量减少,非传统食品增加,但肉类或玉米消费量没有变化。结论库内内地区的持续干旱正在对粮食不安全产生长期影响,这可能导致饮食结构的改变,这种改变可能会持续到当前干旱期之后。我们考虑这一变化的影响,特别是因为它涉及市场一体化的加强以及对现金经济而非自给型经济的依赖。
ObjectivesArid pastoralism is often understood as an adaptive strategy to marginal environments. As pastoralists become increasingly market integrated, novel dietary preferences and access to low quality market foods can erode traditional diets. These market‐based dietary shifts are particularly problematic during sustained drought, where reductions in traditional foods make pastoralists increasingly reliant on a cash economy. Among the Himba of the Kunene region in Namibia, colonial policies prohibiting access to livestock markets inhibit access to a cash‐based economy, leaving them vulnerable to food insecurity when nontraditional foods are needed to supplement traditional lifeways during drought. To understand the impacts of long‐term drought on diet and food insecurity, we collected longitudinal survey data on diet breadth and food insecurity across 4 years during a multi‐year drought.MethodsParticipants completed a five‐item food insecurity survey and recalled diet breadth survey over the course of 4 years (N= 191–234). Additionally, women completed a short survey of recent stressors, including health and resource stressors (N= 127). We used a set of multilevel models to estimate changes in food insecurity items and diet breadth changes over the course of the study period.ResultsMultilevel models predicted score outcomes, as well as individual item responses, by year of data collection. Results indicate a 43% increase in average food insecurity and a 15% decline in average diet breadth over the study period. Dietary recall indicates that drought caused a reduction in sour milk intake, and an increase in nontraditional foods, but no change in meat or maize consumption.ConclusionsSustained drought in the Kunene region is having long‐term impacts on food insecurity, which could result in dietary shifts that outlast the current period of drought. We consider the implications of this change, especially as it relates to increasing market integration and reliance on a cash‐based over a subsistence‐based economy.
撒哈拉以南非洲牧民的营养状况:文献综述
DOI: --
发表时间: 1996
期刊:
影响因子: --
作者:
D. Sellen
通讯作者: D. Sellen
DOI: 10.1080/07315724.2000.10718084
发表时间: 2000-04-01
影响因子: 3.5
作者:
Heyman, M
通讯作者: Heyman, M
2019 年纳米比亚干旱:概述
DOI: --
发表时间: 2020
期刊:
影响因子: --
作者:
R. Shikangalah
通讯作者: R. Shikangalah
克服干旱和发展:肯尼亚北部的阿里亚尔牧民
DOI: --
发表时间: 2019
期刊:
影响因子: --
作者:
E. Fratkin
通讯作者: E. Fratkin
饮食、营养和田园策略
DOI: --
发表时间: 1994
期刊:
影响因子: --
作者:
K. Galvin;D. Coppock;P. Leslie
通讯作者: P. Leslie