Predictors and immunological correlates of sublethal mercury exposure in vampire bats
Predictors and immunological correlates of sublethal mercury exposure in vampire bats
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DOI：
10.1098/rsos.170073
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发表时间：
2017-04-01
影响因子：
3.5
通讯作者：
Streicker, Daniel G.
中科院分区：
文献类型：
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作者：
Becker, Daniel J.;Chumchal, Matthew M.;Streicker, Daniel G.
汞（Hg）是一种普遍存在的重金属，通常通过金矿开采和农业等人为来源进入环境。长期接触汞会损害免疫功能，降低动物抵抗感染或从感染中恢复的能力。汞如何影响蝙蝠的免疫力和易感性仍不清楚，蝙蝠的免疫力似乎与其他哺乳动物不同，是许多对人类和动物健康有重要影响的病原体的储存宿主。在这里，我们量化头发中的总汞（THG）收集常见的吸血蝙蝠（Desmodus rotundus），血液和狂犬病病毒在拉丁美洲的主要水库主机。我们研究如何饮食，采样地点和年份，蝙蝠人口影响THG和测试的后果，这种变化的8个免疫措施。在两个人口从伯利兹，THG浓度在蝙蝠最好的解释之间的相互作用，从稳定同位素和年推断的长期饮食。蝙蝠觅食更一贯的家畜表现出较高的THg。
Mercury (Hg) is a pervasive heavy metal that often enters the environment from anthropogenic sources such as gold mining and agriculture. Chronic exposure to Hg can impair immune function, reducing the ability of animals to resist or recover from infections. How Hg influences immunity and susceptibility remains unknown for bats, which appear immunologically distinct from other mammals and are reservoir hosts of many pathogens of importance to human and animal health. We here quantify total Hg (THg) in hair collected from common vampire bats (Desmodus rotundus), which feed on blood and are the main reservoir hosts of rabies virus in Latin America. We examine how diet, sampling site and year, and bat demography influence THg and test the consequences of this variation for eight immune measures. In two populations from Belize, THg concentrations in bats were best explained by an interaction between long-term diet inferred from stable isotopes and year. Bats that foraged more consistently on domestic animals exhibited higher THg.