Climate Change Data Portal
DOI | 10.1007/s10646-014-1394-4 |
Songbirds as sentinels of mercury in terrestrial habitats of eastern North America | |
Jackson, Allyson K.1,2; Evers, David C.2; Adams, Evan M.2; Cristol, Daniel A.3; Eagles-Smith, Collin4; Edmonds, Samuel T.2,5; Gray, Carrie E.2; Hoskins, Bart6; Lane, Oksana P.2; Sauer, Amy2; Tear, Timothy | |
发表日期 | 2015-03-01 |
ISSN | 0963-9292 |
卷号 | 24期号:2页码:453-467 |
英文摘要 | Mercury (Hg) is a globally distributed environmental contaminant with a variety of deleterious effects in fish, wildlife, and humans. Breeding songbirds may be useful sentinels for Hg across diverse habitats because they can be effectively sampled, have well-defined and small territories, and can integrate pollutant exposure over time and space. We analyzed blood total Hg concentrations from 8,446 individuals of 102 species of songbirds, sampled on their breeding territories across 161 sites in eastern North America [geometric mean Hg concentration = 0.25 mu g/g wet weight (ww), range <0.01-14.60 mu g/g ww]. Our records span an important time period-the decade leading up to implementation of the USEPA Mercury and Air Toxics Standards, which will reduce Hg emissions from coal-fired power plants by over 90 %. Mixed-effects modeling indicated that habitat, foraging guild, and age were important predictors of blood Hg concentrations across species and sites. Blood Hg concentrations in adult invertebrate-eating songbirds were consistently higher in wetland habitats (freshwater or estuarine) than upland forests. Generally, adults exhibited higher blood Hg concentrations than juveniles within each habitat type. We used model results to examine species-specific differences in blood Hg concentrations during this time period, identifying potential Hg sentinels in each region and habitat type. Our results present the most comprehensive assessment of blood Hg concentrations in eastern songbirds to date, and thereby provide a valuable framework for designing and evaluating risk assessment schemes using sentinel songbird species in the time after implementation of the new atmospheric Hg standards. |
英文关键词 | Bioaccumulation;Mercury;Passeriformes;Sentinel;Songbird |
语种 | 英语 |
WOS记录号 | WOS:000349334000020 |
来源期刊 | ECOTOXICOLOGY |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/61003 |
作者单位 | 1.Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA; 2.Biodivers Res Inst, Portland, ME 04103 USA; 3.Coll William & Mary, Dept Biol, Williamsburg, VA 23187 USA; 4.Forest & Rangeland Ecosystem Sci Ctr, US Geol Survey, Corvallis, OR 97331 USA; 5.TRC Companies Inc, Augusta, ME 04330 USA; 6.US EPA, New England Reg Lab, Chelmsford, MA 01863 USA |
推荐引用方式 GB/T 7714 | Jackson, Allyson K.,Evers, David C.,Adams, Evan M.,et al. Songbirds as sentinels of mercury in terrestrial habitats of eastern North America[J]. 美国环保署,2015,24(2):453-467. |
APA | Jackson, Allyson K..,Evers, David C..,Adams, Evan M..,Cristol, Daniel A..,Eagles-Smith, Collin.,...&Tear, Timothy.(2015).Songbirds as sentinels of mercury in terrestrial habitats of eastern North America.ECOTOXICOLOGY,24(2),453-467. |
MLA | Jackson, Allyson K.,et al."Songbirds as sentinels of mercury in terrestrial habitats of eastern North America".ECOTOXICOLOGY 24.2(2015):453-467. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。