Extreme weather and migration: evidence from Bangladesh
Extreme weather and migration: evidence from Bangladesh
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DOI：
10.1007/s11111-019-00322-9
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发表时间：
2019-09-01
影响因子：
3.3
通讯作者：
Donato, Katharine
中科院分区：
文献类型：
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作者：
Carrico, Amanda R.;Donato, Katharine
使用在孟加拉国西南部收集的回顾性移民历史数据，我们研究了极端天气条件之间的关系-温暖期，干旱期，潮湿期，和强烈的降水-和男性户主的可能性，使第一个内部或国际移民之旅。我们还调查了农业生计和近亲移民是否以及如何与应对极端天气的移民相关。调查结果显示，干旱期与移民增加的关系最为一致，尽管我们看到一些证据表明，在温暖期和高于平均降雨量后，首次旅行也会增加。干旱期和温暖期之间的联系在以农业为生的户主中更为明显。我们发现，几乎没有证据表明，有移徙亲属与极端天气事件后的移徙有关，但有一些证据表明，社区一级的移徙网络的存在与环境冲击后的国际移徙有关。
Using retrospective migration history data collected in southwestern Bangladesh, we examine the relationship between extreme weather conditions-warm spells, dry spells, wet spells, and intense precipitation-and the likelihood that male household heads make a first internal or international migrant trip. We also investigate whether and how agricultural livelihoods and having a close migrant relative are associated with migration in response to extreme weather. Findings reveal that dry spells are most consistently associated with increased migration, although we see some evidence that first trips also increase after warm spells and above average rainfall. Associations between dry spells and warm spells are more pronounced among household heads with agricultural livelihoods. We find little evidence that having migrant relatives is associated with migration after extreme weather events, but some evidence that the presence of migrant networks at the community level is associated with international migration after an environmental shock.