Elevated Mortality among Birds in Chernobyl as Judged from Skewed Age and Sex Ratios
Publication Date
April 11, 2012
Journal
PLOS ONE
Authors
Anders Pape Møller, Andrea Bonisoli Alquati, Geir Rudolfsen & Timothy A. Mousseau
Volume
7
Issue
4
Pages
e35223
DOI
https://dx.plos.org/10.1371/journal.pone.0035223
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0035223
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/22514722
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324427
Europe PMC
http://europepmc.org/abstract/MED/22514722
Web of Science
000305336600094
Scopus
84859579684
Mendeley
http://www.mendeley.com/research/elevated-mortality-among-birds-chernobyl-judged-skewed-age-sex-ratios
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Mendeley | Further Information

{"title"=>"Elevated mortality among birds in Chernobyl as judged from skewed age and sex ratios", "type"=>"journal", "authors"=>[{"first_name"=>"Anders Pape", "last_name"=>"Møller", "scopus_author_id"=>"55574503700"}, {"first_name"=>"Andrea", "last_name"=>"Bonisoli-Alquati", "scopus_author_id"=>"23567867200"}, {"first_name"=>"Geir", "last_name"=>"Rudolfsen", "scopus_author_id"=>"6507660051"}, {"first_name"=>"Timothy A.", "last_name"=>"Mousseau", "scopus_author_id"=>"7004473969"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "scopus"=>"2-s2.0-84859579684", "pui"=>"364606622", "doi"=>"10.1371/journal.pone.0035223", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)", "sgr"=>"84859579684", "pmid"=>"22514722"}, "id"=>"8fbcc016-8589-3b7c-bd01-7405741d3387", "abstract"=>"BACKGROUND: Radiation has negative effects on survival of animals including humans, although the generality of this claim is poorly documented under low-dose field conditions. Because females may suffer disproportionately from the effects of radiation on survival due to differences in sex roles during reproduction, radiation-induced mortality may result in male-skewed adult sex ratios.\\n\\nMETHODOLOGY/PRINCIPAL FINDING: We estimated the effects of low-dose radiation on adult survival rates in birds by determining age ratios of adults captured in mist nets during the breeding season in relation to background radiation levels around Chernobyl and in nearby uncontaminated control areas. Age ratios were skewed towards yearlings, especially in the most contaminated areas, implying that adult survival rates were reduced in contaminated areas, and that populations in such areas could only be maintained through immigration from nearby uncontaminated areas. Differential mortality in females resulted in a strongly male-skewed sex ratio in the most contaminated areas. In addition, males sang disproportionately commonly in the most contaminated areas where the sex ratio was male skewed presumably because males had difficulty finding and acquiring mates when females were rare. The results were not caused by permanent emigration by females from the most contaminated areas because none of the recaptured birds had changed breeding site, and the proportion of individuals with morphological abnormalities did not differ significantly between the sexes for areas with normal and higher levels of contamination.\\n\\nCONCLUSIONS/SIGNIFICANCE: These findings are consistent with the hypothesis that the adult survival rate of female birds is particularly susceptible to the effects of low-dose radiation, resulting in male skewed sex ratios at high levels of radiation. Such skewed age ratios towards yearlings in contaminated areas are consistent with the hypothesis that an area exceeding 30,000 km(2) in Chernobyl's surroundings constitutes an ecological trap that causes dramatic excess mortality.", "link"=>"http://www.mendeley.com/research/elevated-mortality-among-birds-chernobyl-judged-skewed-age-sex-ratios", "reader_count"=>33, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>2, "Researcher"=>9, "Student > Ph. D. Student"=>5, "Student > Postgraduate"=>1, "Other"=>1, "Student > Master"=>3, "Student > Bachelor"=>7, "Lecturer"=>2, "Professor"=>3}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>2, "Researcher"=>9, "Student > Ph. D. Student"=>5, "Student > Postgraduate"=>1, "Other"=>1, "Student > Master"=>3, "Student > Bachelor"=>7, "Lecturer"=>2, "Professor"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Environmental Science"=>6, "Biochemistry, Genetics and Molecular Biology"=>2, "Agricultural and Biological Sciences"=>18, "Medicine and Dentistry"=>1, "Psychology"=>1, "Chemistry"=>1, "Social Sciences"=>1, "Earth and Planetary Sciences"=>2}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Chemistry"=>{"Chemistry"=>1}, "Social Sciences"=>{"Social Sciences"=>1}, "Psychology"=>{"Psychology"=>1}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>2}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>18}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>1}, "Environmental Science"=>{"Environmental Science"=>6}}, "reader_count_by_country"=>{"Romania"=>1, "United States"=>1, "Brazil"=>1, "Mexico"=>1, "Portugal"=>1, "Spain"=>1}, "group_count"=>1}

Scopus | Further Information

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Figshare

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  • {"files"=>["https://ndownloader.figshare.com/files/655671"], "description"=>"<p>Observed proportion of individual birds singing of all birds recorded during point count breeding bird surveys in relation to level of background radiation (µSv/h) during 2006–2009. Error bars represent standard errors.</p>", "links"=>[], "tags"=>["birds", "singing", "recorded", "breeding", "surveys", "bars"], "article_id"=>326158, "categories"=>["Biochemistry", "Neuroscience", "Ecology", "Evolutionary Biology"], "users"=>["Anders Pape Møller", "Andrea Bonisoli-Alquati", "Geir Rudolfsen", "Timothy A. Mousseau"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0035223.g004", "stats"=>{"downloads"=>1, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Observed_proportion_of_individual_birds_singing_of_all_birds_recorded_during_point_count_breeding_bird_surveys_in_relation_to_level_of_background_radiation_181_Sv_h_during_2006_8211_2009_Error_bars_represent_standard_errors_/326158", "title"=>"Observed proportion of individual birds singing of all birds recorded during point count breeding bird surveys in relation to level of background radiation (µSv/h) during 2006–2009. Error bars represent standard errors.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-20 06:41:06"}

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Relative Metric

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