Chaplin-Kramer Rebecca, Dombeck Emily, Gerber James, Knuth Katherine A, Mueller Nathaniel D, Mueller Megan, Ziv Guy, Klein Alexandra-Maria
Natural Capital Project, Woods Institute for the Environment, Stanford University, 371 Serra Mall, Stanford, CA 94305, USA
Institute on the Environment, University of Minnesota, 1954 Buford Avenue, St. Paul, MN 55108, USA.
Proc Biol Sci. 2014 Nov 7;281(1794):20141799. doi: 10.1098/rspb.2014.1799.
Pollinators contribute around 10% of the economic value of crop production globally, but the contribution of these pollinators to human nutrition is potentially much higher. Crops vary in the degree to which they benefit from pollinators, and many of the most pollinator-dependent crops are also among the richest in micronutrients essential to human health. This study examines regional differences in the pollinator dependence of crop micronutrient content and reveals overlaps between this dependency and the severity of micronutrient deficiency in people around the world. As much as 50% of the production of plant-derived sources of vitamin A requires pollination throughout much of Southeast Asia, whereas other essential micronutrients such as iron and folate have lower dependencies, scattered throughout Africa, Asia and Central America. Micronutrient deficiencies are three times as likely to occur in areas of highest pollination dependence for vitamin A and iron, suggesting that disruptions in pollination could have serious implications for the accessibility of micronutrients for public health. These regions of high nutritional vulnerability are understudied in the pollination literature, and should be priority areas for research related to ecosystem services and human well-being.
传粉者对全球农作物生产经济价值的贡献约为10%，但这些传粉者对人类营养的贡献可能要高得多。不同作物从传粉者中受益的程度各不相同，许多最依赖传粉者的作物也是对人类健康至关重要的微量营养素含量最丰富的作物之一。本研究考察了作物微量营养素含量对传粉者依赖程度的区域差异，并揭示了这种依赖性与世界各地人群微量营养素缺乏严重程度之间的重叠情况。在东南亚大部分地区，高达50%的植物源维生素A生产需要传粉，而其他必需的微量营养素，如铁和叶酸，依赖性较低，分布在非洲、亚洲和中美洲各地。在维生素A和铁的传粉依赖程度最高的地区，微量营养素缺乏发生的可能性是其他地区的三倍，这表明传粉中断可能对微量营养素的公共卫生可及性产生严重影响。在传粉文献中，这些营养高度脆弱的地区研究较少，应该成为与生态系统服务和人类福祉相关研究的优先领域。
