Estimation of effects of dioxins and dioxin-like PCBs on wildlife population––a case study on common cormorant

Murata, Mariko; Iseki, Naomasa; Masunaga, Shigeki; Nakanishi, Junko

doi:10.1016/s0045-6535(03)00008-0

Cited by 13 publications

(10 citation statements)

References 12 publications

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“…The population transition and reproductive behavior of great cormorants in this area have been the subject of long-term studies (see, e.g., Fukuda 1981Fukuda , 1997. as well as Murata, Iseki, et al (2003) have used data from those studies to estimate the demographics of the great cormorant, which we refer to in the present study.…”

Section: Target Scenarios and Speciesmentioning

confidence: 99%

“…Forbes and Calow (2002) have argued that population growth rate (k) analysis should be used to provide guidance for a more pragmatic and ecologically sound approach to ecological risk assessment. To date, several population-level risk assessment approaches or case studies have been reported for fish (see, e.g., Munns et al 1997;Tanaka 2003;Miller and Ankley 2004;Lin et al 2005;Spromberg and Meador 2005) or for birds (see, e.g., Nakamaru et al 2002;Murata, Iseki, et al 2003;. Munns et al (1997) have evaluated the effects of dioxins and PCBs on mummichog populations on a site-specific basis using environmental exposure levels combined with dose-response relationships.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies (Murata, Iseki, et al 2003; have used probabilistic approaches to assess population-level ecological risks of planar polychlorinated aromatic hydrocarbons in sediment of Tokyo Bay and rivers via the ingestion of fish by populations of the great cormorant (Phalacrocorax carbo). Those studies have focused on only 1 species with a single life-history strategy, and to our knowledge, the effects of compounds on species with different life-history strategies have not been evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of population‐level ecological risks of dioxin‐like polychlorinated biphenyl exposure to fish‐eating birds in Tokyo Bay and its vicinity

Naito

Murata

2007

Integr Envir Assess & Manag

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Population-level assessments of the ecological risks of dioxin-like polychlorinated biphenyl (PCB) exposure to fish-eating birds in Tokyo Bay and its vicinity were performed to judge the need for risk management measures to protect aquatic wildlife from dioxin-like PCB contamination. Egg mortality risk and changes in the population growth rate (lambda) in relation to the contamination levels of dioxin-like PCBs in eggs of gray heron (Ardea cinerea), great cormorant (Phalacrocorax carbo), osprey (Pandion halieaetus), and kingfisher (Alcedo atthis) were determined by integrating the results of exposure analysis, effect analysis, and a life-history model for each species. The egg mortality risks for the gray heron, great cormorant, osprey, and kingfisher populations were calculated to be 5.8, 6.8, 12, and less than 1%, respectively. The estimated lambda for those populations were calculated to be 1.061, 1.405, 1.024, and 1.131, respectively. The percentage changes in lambda for those populations were estimated to be 1.2, 2.0, 1.6, and less than 1%, respectively. Our results implied that the levels of dioxin-like PCBs observed in the Tokyo Bay area alone would not have significant population-level effects on the fish-eating bird populations. It is concluded that along with the trend toward decreasing dioxin and dioxin-like PCB levels in Tokyo Bay, no urgent need exists for risk-reduction measures to protect fish-eating bird populations against dioxin-like PCBs.

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Section: Target Scenarios and Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of population‐level ecological risks of dioxin‐like polychlorinated biphenyl exposure to fish‐eating birds in Tokyo Bay and its vicinity

Naito

Murata

2007

Integr Envir Assess & Manag

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“…For the exposed population, the fertility rates m i of the matrix elements were modified to m i ', depending on the incremental egg mortality risk α, as in the following equation: Variables marked by prime symbols are those for the population exposed to p ‐PCAHs. Fertility and survival rates used in this study were estimated in our previous work [18]. The vital rates and other parameters are listed in Table 2.…”

Section: Ecological Risk Assessmentmentioning

confidence: 99%

“…Variables marked by prime symbols are those for the population exposed to p-PCAHs. Fertility and survival rates used in this study were estimated in our previous work [18]. The vital rates and other parameters are listed in Table 2.…”

Section: Population-level Risk Characterizationmentioning

confidence: 99%

Population‐level ecological risk assessment of planar polychlorinated aromatic hydrocarbons in great cormorant (Phalacrocorax carbo) around Tokyo Bay, Japan

Murata

Masunaga

Nakanishi

2003

Enviro Toxic and Chemistry

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Assessment of population-level ecological risk posed by planar polychlorinated aromatic hydrocarbons (p-PCAHs; including polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and dioxintike polychlorinated biphenyls) in sediment of Tokyo Bay (Japan) and rivers via fish ingestion to the great cormorant (Phalacrocorax carbo) population was conducted by means of a probabilistic approach. Population decline risk was used as an indicator of population-level effects and compared with other indicators of effects. The increment of egg mortality risk posed by current p-PCAH levels was estimated to be 11.7%. This risk was interpreted in terms of both the increase of the risk of population decline in a 10-year period on a recently abundant cormorant population, and the reduction in population growth rate (r). Population decline risks of 20% and below were estimated to be 16% for the reference population and 32% for the exposed population, whereas the reduction in r was estimated to be 10%. The risk expressed in terms of population viability is a more susceptible measure and a more easily understandable indicator than both egg mortality risk as an individual-level risk and the reduction in r. Translating the effects due to pollutants into the risk on population viability will make ecological risk assessment more conductive to risk management.

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A comparative study of population management approaches in infectious disease control, population management of fisheries and wildlife, and integrated pest management in agriculture

Matsuda,

Watanabe

2024

Population Ecology

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This paper provides a comprehensive study on the similarities and differences between infectious disease control in public health and various population management approaches, including fisheries resource management, wildlife management, and integrated pest management in agriculture. We aim to identify key strategies, and potential synergies that can contribute to the development of population management strategies within these domains. For example, scientists provide options but leave policy making itself to stakeholders, choose monitoring indicators with as little time lag or change thresholds between increasing and decreasing phases to account for time lag, consider economic feasibility, and clarify accountability, which are common to all fields. There are many elements to incorporate methods from other fields while making use of the accumulation gained in each field.

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Estimation of effects of dioxins and dioxin-like PCBs on wildlife population––a case study on common cormorant

Cited by 13 publications

References 12 publications

Evaluation of population‐level ecological risks of dioxin‐like polychlorinated biphenyl exposure to fish‐eating birds in Tokyo Bay and its vicinity

Evaluation of population‐level ecological risks of dioxin‐like polychlorinated biphenyl exposure to fish‐eating birds in Tokyo Bay and its vicinity

Population‐level ecological risk assessment of planar polychlorinated aromatic hydrocarbons in great cormorant (Phalacrocorax carbo) around Tokyo Bay, Japan

A comparative study of population management approaches in infectious disease control, population management of fisheries and wildlife, and integrated pest management in agriculture

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