亚马逊保护区鸟类体内的重金属污染。

IF 3.6 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Environmental Toxicology and Chemistry Pub Date : 2024-08-26 DOI:10.1002/etc.5984

Yeraldi Loera, Cristian Gruppi, Kelly Swing, Shane C Campbell-Staton, Borja Milá, Thomas B Smith

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引用次数: 0

摘要

原油和黄金的开采大大增加了环境中的重金属污染，然而，即使在世界上生物多样性最丰富的地方，对野生动物接触重金属和生物对这种污染的反应的研究仍然刚刚起步。我们对楔嘴食林鸟（Glyphorynchus spirurus）羽毛中的重金属暴露进行了调查，这种新热带留鸟生活在亚马逊石油和黄金开采地附近的保护区内。我们的研究结果表明，在已知石油和黄金开采地附近的保护区采集的样本中，重金属污染程度很高。令人惊讶的是，来自偏远参照地的一些样本也显示出各种重金属含量升高，这表明环境中存在自然沉积或人为来源的复杂重金属污染背景。这些结果突出表明，有必要了解重金属暴露增加对野生动物的生态和生物影响，包括世界上据称未受这些人为压力因素影响的偏远地区。为实现这一目标，来自本地鸟类种群的历史和当代数据可能会为野生动物和人类社区的重金属污染和暴露提供重要指标。环境毒物化学 2024;00:1-7。© 2024 作者。环境毒理学与化学》由 Wiley Periodicals LLC 代表 SETAC 出版。

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Heavy Metal Contamination in Birds from Protected Regions in the Amazon.

The extraction of crude oil and gold has substantially increased heavy metal contamination in the environment, yet the study of wildlife exposure and biological response to this pollution remains nascent even in the most biodiverse places in the world. We present a survey of heavy metal exposure in the feathers of wedge-billed woodcreepers (Glyphorynchus spirurus), a resident neotropical bird found within protected regions of the Amazon near oil and gold extraction sites. Our results show elevated heavy metal contamination in samples collected from protected areas proximate to known oil and gold extraction. Surprisingly, several samples from remote reference sites also displayed elevated levels of various heavy metals, suggesting a background of natural deposition or complex heavy metal contamination in the environment from anthropogenic sources. These results highlight the need to understand the ecological and biological impacts of increased heavy metal exposure on wildlife across space and time, including remote regions of the world purportedly untouched by these human-mediated stressors. Toward this goal, historical and contemporary data from native bird populations may provide crucial indicators for heavy metal contamination and exposure in wildlife and human communities. Environ Toxicol Chem 2024;00:1-7. © 2024 The Author(s). Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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来源期刊

Environmental Toxicology and Chemistry 环境科学-毒理学

CiteScore

7.40

自引率

9.80%

发文量

265

审稿时长

3.4 months

期刊介绍： The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.