干旱区生态环境知识资源中心(Arid): Microlophus atacamensis as a biomonitor of coastal contamination in the Atacama Desert, Chile: An evaluation through a non-lethal technique

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DOI	10.1016/j.envpol.2020.115739
	Microlophus atacamensis as a biomonitor of coastal contamination in the Atacama Desert, Chile: An evaluation through a non-lethal technique
	Marambio-Alfaro, Yery; Valdes Saavedra, Jorge; Nacari Enciso, Luis; Lopez Marras, Americo; Serrano, Antonio E.; Martinez Pelaez, Rodrigo; Castillo Bruna, Alexis; Alvarez Avalos, Gabriel; Vidal Maldonado, Marcela
通讯作者	Marambio-Alfaro, Y (corresponding author), Univ Antofagasta, Antofagasta 1240000, Chile.
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2021
卷号	269
英文摘要	In this report, we investigated the accumulation of heavy metals in the lizard Microlophus atacamensis, in three coastal areas of the Atacama Desert, northern Chile. We captured reptiles in a non-intervened area (Parque Nacional Pan de Azucar, PAZ), an area of mining impact (Caleta Palitos, PAL) and an active industrial zone (Puerto de Caldera, CAL). Our methods included a non-lethal sampling of reptiles' tails obtained by autotomy and a few sacrificed animals to perform a stomach contents analysis. The concentrations of lead, copper, nickel, zinc and cadmium were measured by atomic absorption spectrophotometry in both soil and prey and compared to those recorded in the lizards' tails. Data obtained from lizard tails captured in PAL showed significantly high concentrations of Pb, Cu, Ni, and Zn compared to the other two sites PAZ and CAL. We did not find statistically significant differences among PAZ, PAL and CAL soils, probably due to the similar geological composition of the sites. However, the regional background values for Pb indicate contamination or at least metal enrichment in soils of the three sites, for Cu the global background values indicate contamination for the three sites, and for Cd both the regional and global backgroud values show high values. The analysis of the stomach content showed differences in the food sources of the lizards among the sites studied. The concentration of heavy metal in lizard tissues versus prey delivered values of the Trophic Transfer Factor higher than one (1), suggesting that food may be a primary source of metals in the tissues of M. atacamensis. Calculations of the Bioaccumulation Factor (BAF) and the Ecological Risk (IR) resulted in values higher than one (1) indicating the relevance of this process in the sites studied. In this article, we report relationships between environmental contaminants, mainly putative preys, and concentrations found in lizard tails, which is more substantial in areas with historical heavy metal contamination such as PAL where the non-lethal technique developed in this research suggests a process of metal bioaccumulation in M. atacamensis. (C) 2020 The Author(s). Published by Elsevier Ltd.
英文关键词	Environmental pollution Heavy metals Non-lethal biomonitor Lizard
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000604429000002
WOS关键词	VULTURE CATHARTES-AURA ; TERRESTRIAL FOOD WEBS ; SALVADOR COPPER MINE ; PUNTA-DEL-COBRE ; SAN JORGE BAY ; NORTHERN CHILE ; HEAVY-METALS ; TROPHIC TRANSFER ; ECOLOGICAL RISK ; ENVIRONMENTAL-IMPACT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347861
作者单位	[Marambio-Alfaro, Yery; Valdes Saavedra, Jorge; Lopez Marras, Americo] Univ Antofagasta, LASPAL LABIGAM Labs, Alexander von Humboldt Inst Nat Sci, Antofagasta 1240000, Chile; [Marambio-Alfaro, Yery] Parmenides Ltd, 1265 Plaza Wheelwright, Copiapo 1530291, Atacama, Chile; [Marambio-Alfaro, Yery; Nacari Enciso, Luis] Univ Antofagasta, Doctoral Program Appl Sci Coastal Marine Syst, Fac Marine Sci & Biol Resources, Antofagasta 1240000, Chile; [Martinez Pelaez, Rodrigo] Univ Antofagasta, Fac Basic Sci, Dept Math, Antofagasta 1240000, Chile; [Castillo Bruna, Alexis] Catholic Univ Maule, Res Ctr Adv Studies Maule, Vice Rectors Off Res & Postgrad Studies, San Miguel Campus,San Miguel Av, Talca, Chile; [Alvarez Avalos, Gabriel] Univ Antofagasta, Dept Engn Geo Measuring & Geomat, Antofagasta 1240000, Chile; [Vidal Maldonado, Marcela] Univ Bio Bio, Fac Sci, Dept Basic Sci, Chillan, Chile
推荐引用方式 GB/T 7714	Marambio-Alfaro, Yery,Valdes Saavedra, Jorge,Nacari Enciso, Luis,et al. Microlophus atacamensis as a biomonitor of coastal contamination in the Atacama Desert, Chile: An evaluation through a non-lethal technique[J],2021,269.
APA	Marambio-Alfaro, Yery.,Valdes Saavedra, Jorge.,Nacari Enciso, Luis.,Lopez Marras, Americo.,Serrano, Antonio E..,...&Vidal Maldonado, Marcela.(2021).Microlophus atacamensis as a biomonitor of coastal contamination in the Atacama Desert, Chile: An evaluation through a non-lethal technique.ENVIRONMENTAL POLLUTION,269.
MLA	Marambio-Alfaro, Yery,et al."Microlophus atacamensis as a biomonitor of coastal contamination in the Atacama Desert, Chile: An evaluation through a non-lethal technique".ENVIRONMENTAL POLLUTION 269(2021).