首页> 外文期刊>Environmental toxicology and chemistry >ECOLOGICAL RISK ASSESSMENT OF GREAT HORNED OWLS (BUBO VIRGINIANUS) EXPOSED TO PCDD/DF IN THE TITTABAWASSEE RIVER FLOODPLAIN IN MIDLAND, MICHIGAN, USA
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ECOLOGICAL RISK ASSESSMENT OF GREAT HORNED OWLS (BUBO VIRGINIANUS) EXPOSED TO PCDD/DF IN THE TITTABAWASSEE RIVER FLOODPLAIN IN MIDLAND, MICHIGAN, USA

机译:在美国密歇根州米德兰的蒂塔巴瓦西河流域,在PCDD / DF中暴露的长角OW(BUBO VIRGINIANUS)的生态风险评估

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摘要

Soils and sediments downstream of Midland, Michigan, USA have elevated polychlorinated dibenzofuran (PCDF) and polychlorinated dibenzo-p-dioxin (PCDD) concentrations. To determine if the PCDD/DF concentrations have the potential to adversely affect terrestrial avian predators, a site-specific, multiple lines of evidence risk assessment was conducted for the great horned owl (Bubo virginianus; GHO). As long-lived resident top predators, the GHO has the potential to be exposed to relatively great concentrations of bioaccumulative compounds such as PCDD/DF. From 2005 to 2008, concentrations of PCDD/DF were measured in blood plasma of adult and nestling GHOs and addled eggs. Indicators of the condition of the population, including abundance and reproductive success, were collected along 115 km of river corridor. Fifty-five active 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) equivalents (TEQ_(WHO-Avian)) nests were monitored in 21 breeding territories from 2005 to 2008. The geometric mean concentration in blood plasma of GHOs was greater in the study area (SA) than in the reference area (RA) for both adults (RA: 3.1; SA: 9.4 ng TEQ_(WHO-Avian)/kg) and nestlings (RA: 0.82 ng TEQ_(WHO-Avian)/kg, SA: 2.1 ng TEQ_(WHO-Avian)/kg) GHOs, but less than concentrations expected to cause adverse effects based on laboratory studies. Concentrations of TEQ_(WHO-Avian) in addled GHO eggs were also greater in the SA than the RA (50 and 7.3 ng/kg, wet weight, respectively), but were less than concentrations expected to cause adverse effects. The GHO population condition and productivity were both greater in the study area than in the reference area and were similar to other GHO populations. This result suggests the GHO population in the Tittabawassee River floodplain is consistent with what would be expected for this area.
机译:美国密歇根州米德兰(Midland)下游的土壤和沉积物的多氯二苯并呋喃(PCDF)和多氯二苯并对二恶英(PCDD)浓度较高。为了确定PCDD / DF浓度是否有可能对陆生鸟类捕食者造成不利影响,针对大(Bubo virginianus; GHO)进行了针对特定地点的多证据风险评估。作为长期居住的顶级掠食者,GHO有潜力暴露于相对较高浓度的生物蓄积性化合物(例如PCDD / DF)中。从2005年到2008年,测量了成年和雏鸟GHO以及蛋蛋血浆中PCDD / DF的浓度。沿着115公里长的河道收集了人口状况的指标,包括丰度和生殖成功。从2005年到2008年,在21个繁殖地区监测了55个活动的2,3,7,8-四氯二苯并-对-二恶英(2,3,7,8-TCDD)当量(TEQ_(WHO-Avian))巢。成年人(RA:3.1; SA:9.4 ng TEQ_(WHO-禽)/ kg)和雏鸟(RA)的研究区域(SA)中血浆GHO的几何平均浓度均高于参考区域(RA) :0.82 ng TEQ_(WHO-禽)/ kg,SA:2.1 ng TEQ_(WHO-禽)/ kg)GHO,但低于根据实验室研究预期会引起不利影响的浓度。在SA中,添加的GHO卵中TEQ_(WHO-Avian)的浓度也比RA高(分别为50和7.3 ng / kg,湿重),但低于预期会造成不利影响的浓度。研究区域的GHO种群状况和生产力均高于参考区域,并且与其他GHO种群相似。该结果表明,Tittabawassee河洪泛区的GHO人口与该地区的预期一致。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2010年第10期|p.2341-2349|共9页
  • 作者单位

    Zoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA;

    Zoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA;

    Zoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA;

    Animal Science Department, Michigan State University, East Lansing, Michigan 48824, USA;

    rnZoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA Animal Science Department, Michigan State University, East Lansing, Michigan 48824, USA;

    rnENTRIX, Okemos, Michigan 48864, USA;

    rnENTRIX, Okemos, Michigan 48864, USA;

    rnZoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B3, Canada Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China College of Environment, Nanjing University of Technology, Nanjing 210093, P R China Key Laboratory of Marine Environmental Science, College of Oceanography and Environmental Science, Xiamen University, Xiamen, China;

    rnZoology Department, Center for Integrative Toxicology, National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA Animal Science Department, Michigan State University, East Lansing, Michigan 48824, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    raptors; dioxin; furan; blood; egg;

    机译:猛禽二恶英呋喃血液;蛋;
  • 入库时间 2022-08-17 13:32:18

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