Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Anderson, Donovan; Beresford, Nicholas A.; Ishiniwa, Hiroko; Onuma, Manabu; Nanba, Kenji; Hinton, Thomas G.

doi:10.1016/j.jenvrad.2020.106457

Cited by 8 publications

(3 citation statements)

References 46 publications

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“…However, A. argenteus is, as the authors acknowledge, only semi‐arboreal (Nakamura‐Kojo et al, 2016) with some reports indicating that it can nest underground (Odachi et al, 2009), which would increase exposure. Anderson et al (2021) conducted a large sampling of A. speciosus and A. argenteus in the Fukushima area finding little difference in the internal dose rate of the two species, a finding in agreement with Lavrinienko, Hämäläinen, et al (2021). However, external exposure is the largest contributor to total dose in the Fukushima area.…”

Section: Considerations On Studies In Radiologically Contaminated Sitessupporting

confidence: 59%

“…However, external exposure is the largest contributor to total dose in the Fukushima area. Anderson et al (2021) estimated the external exposure of A. argenteus for two scenarios:…”

Section: Con S Ider Ati On S On S Tud Ie S In R Adiolog Ic Ally Conta...mentioning

confidence: 99%

“…However, external exposure is the largest contributor to total dose in the Fukushima area. Anderson et al (2021) estimated the external exposure of A. argenteus for two scenarios: (a) assuming the species spends 100% of its time on the ground surface; and (b) assuming it spends 50% of time in trees. When 50% occupancy in trees was assumed, the estimated dose rate was only about 8% lower than when 100% occupancy on the ground surface was assumed.…”

Section: Considerations On Studies In Radiologically Contaminated Sitesmentioning

confidence: 99%

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Some observations on meaningful and objective inference in radioecological field studies

Jackson

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Beresford

2022

Journal of Animal Ecology

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1. Anthropogenic releases of radiation are of ongoing importance for environmental protection, but the radiation doses at which natural systems begin to show effects are controversial. More certainty is required in this area to achieve optimal regulation for radioactive substances. We recently carried out a large survey (268 sampled animals and 20 sites) of the association between environmental radiation exposures and small mammal gut-associated microbiomes (fungal and bacterial) in the Chornobyl Exclusion zone (CEZ). Using individual measurements of total absorbed dose rates and a study design and analyses that accounted for spatial non-independence, we found no, or only limited, association.2. Watts et al. have criticised our study: for not filtering candidate non-resident components prior to our fungal microbiome analyses, for our qualified speculations on the relative merits of faecal and gut samples, and for the design of our study which they felt lacked sufficient replication.3. The advantage of filtering non-resident-fungal taxa is not clear and it would not have changed the null (spatially adjusted) association we found between radioactive dose and mycobiome composition because the most discriminatory fungal taxa with regard to dose were non-resident taxa.4. We maintain that it was legitimate for us to make qualified discussion comments on the differences in results between our faecal and gut microbiome analyses and on the relative merits of these sample types. 5. Most importantly, the criticism of our study design by Watts et al. and the designs and analysis of their recent studies in the CEZ show a misunderstanding of the true nature of independent replication in field studies. Recognising the importance of spatial non-independence is essential in the design and analysis of radioecological field surveys.

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Section: Considerations On Studies In Radiologically Contaminated Sitessupporting

confidence: 59%

“…However, external exposure is the largest contributor to total dose in the Fukushima area. Anderson et al (2021) estimated the external exposure of A. argenteus for two scenarios:…”

Section: Con S Ider Ati On S On S Tud Ie S In R Adiolog Ic Ally Conta...mentioning

confidence: 99%

Section: Considerations On Studies In Radiologically Contaminated Sitesmentioning

confidence: 99%

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