Hydrogen Isotopes as a Sentinel of Biological Invasion by the Japanese Beetle, Popillia japonica (Newman)
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{"title"=>"Hydrogen isotopes as a sentinel of biological invasion by the Japanese beetle, popillia japonica (Newman)", "type"=>"journal", "authors"=>[{"first_name"=>"Bruce A.", "last_name"=>"Hungate", "scopus_author_id"=>"7003965032"}, {"first_name"=>"Diana N.", "last_name"=>"Kearns", "scopus_author_id"=>"57188680642"}, {"first_name"=>"Kiona", "last_name"=>"Ogle", "scopus_author_id"=>"7004854987"}, {"first_name"=>"Melanie", "last_name"=>"Caron", "scopus_author_id"=>"18233353100"}, {"first_name"=>"Jane C.", "last_name"=>"Marks", "scopus_author_id"=>"7402797143"}, {"first_name"=>"Helmuth W.", "last_name"=>"Rogg", "scopus_author_id"=>"57188692653"}], "year"=>2016, "source"=>"PLoS ONE", "identifiers"=>{"doi"=>"10.1371/journal.pone.0149599", "pui"=>"609034702", "issn"=>"19326203", "sgr"=>"84962221319", "scopus"=>"2-s2.0-84962221319"}, "id"=>"27e4b102-07d9-3485-840e-b36653e51c44", "abstract"=>"Invasive species alter ecosystems, threaten native and endangered species, and have negative economic impacts. Knowing where invading individuals are from and when they arrive to a new site can guide management. Here, we evaluated how well the stable hydrogen isotope composition (δ2H) records the recent origin and time since arrival of specimens of the invasive Japanese beetle (Popillia japonica Newman) captured near the Portland International Airport (Oregon, U.S.A.). The δ2H of Japanese beetle specimens collected from sites across the contiguous U.S.A. reflected the δ2H of local precipitation, a relationship similar to that documented for other organisms, and one confirming the utility of δ2H as a geographic fingerprint. Within weeks after experimental relocation to a new isotopic environment, the δ2H of beetles changed linearly with time, demonstrating the potential for δ2H to also mark the timing of arrival to a new location. We used a hierarchical Bayesian model to estimate the recent geographical origin and timing of arrival of each specimen based on its δ2H value. The geographic resolution was broad, with values consistent with multiple regions of origin in the eastern U.S.A., slightly favoring the southeastern U.S.A. as the more likely source. Beetles trapped from 2007–2010 had arrived 30 or more days prior to trapping, whereas the median time since arrival declined to 3–7 days for beetles trapped from 2012–2014. This reduction in the time between arrival and trapping at the Portland International Airport supports the efficacy of trapping and spraying to prevent establishment. More generally, our analysis shows how stable isotopes can serve as sentinels of biological invasions, verifying the efficacy of control measures, or, alternatively, indicating when those measures show signs of failure.", "link"=>"http://www.mendeley.com/research/hydrogen-isotopes-sentinel-biological-invasion-japanese-beetle-popillia-japonica-newman", "reader_count"=>15, "reader_count_by_academic_status"=>{"Researcher"=>7, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>2, "Other"=>1, "Student > Master"=>1, "Lecturer"=>1, "Librarian"=>1}, "reader_count_by_user_role"=>{"Researcher"=>7, "Student > Doctoral Student"=>2, "Student > Ph. D. Student"=>2, "Other"=>1, "Student > Master"=>1, "Lecturer"=>1, "Librarian"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Engineering"=>1, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>4, "Medicine and Dentistry"=>1, "Business, Management and Accounting"=>1, "Social Sciences"=>2, "Earth and Planetary Sciences"=>3}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Social Sciences"=>{"Social Sciences"=>2}, "Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>3}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>4}, "Business, Management and Accounting"=>{"Business, Management and Accounting"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>2}}, "reader_count_by_country"=>{"Mexico"=>1}, "group_count"=>4}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/4830763"], "description"=>"<p>Increased trap densities around the airport have increased the probability of catching beetles as they fly from planes.</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108196, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g004", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_sup_2_sup_H_of_Japanese_beetles_collected_at_the_Portland_International_Airport_Oregon_USA_circles_and_in_locations_nearby_triangles_from_2006_2013_/3108196", "title"=>"δ<sup>2</sup>H of Japanese beetles collected at the Portland International Airport (Oregon, USA) (circles) and in locations nearby (triangles) from 2006–2013.", "pos_in_sequence"=>5, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830718", "https://ndownloader.figshare.com/files/4830721", "https://ndownloader.figshare.com/files/4830727", "https://ndownloader.figshare.com/files/4830730", "https://ndownloader.figshare.com/files/4830733", "https://ndownloader.figshare.com/files/4830736", "https://ndownloader.figshare.com/files/4830742"], "description"=>"<div><p>Invasive species alter ecosystems, threaten native and endangered species, and have negative economic impacts. Knowing where invading individuals are from and when they arrive to a new site can guide management. Here, we evaluated how well the stable hydrogen isotope composition (δ<sup>2</sup>H) records the recent origin and time since arrival of specimens of the invasive Japanese beetle (<i>Popillia japonica</i> Newman) captured near the Portland International Airport (Oregon, U.S.A.). The δ<sup>2</sup>H of Japanese beetle specimens collected from sites across the contiguous U.S.A. reflected the δ<sup>2</sup>H of local precipitation, a relationship similar to that documented for other organisms, and one confirming the utility of δ<sup>2</sup>H as a geographic fingerprint. Within weeks after experimental relocation to a new isotopic environment, the δ<sup>2</sup>H of beetles changed linearly with time, demonstrating the potential for δ<sup>2</sup>H to also mark the timing of arrival to a new location. We used a hierarchical Bayesian model to estimate the recent geographical origin and timing of arrival of each specimen based on its δ<sup>2</sup>H value. The geographic resolution was broad, with values consistent with multiple regions of origin in the eastern U.S.A., slightly favoring the southeastern U.S.A. as the more likely source. Beetles trapped from 2007–2010 had arrived 30 or more days prior to trapping, whereas the median time since arrival declined to 3–7 days for beetles trapped from 2012–2014. This reduction in the time between arrival and trapping at the Portland International Airport supports the efficacy of trapping and spraying to prevent establishment. More generally, our analysis shows how stable isotopes can serve as sentinels of biological invasions, verifying the efficacy of control measures, or, alternatively, indicating when those measures show signs of failure.</p></div>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108169, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0149599.s001", "https://dx.doi.org/10.1371/journal.pone.0149599.s002", "https://dx.doi.org/10.1371/journal.pone.0149599.s003", "https://dx.doi.org/10.1371/journal.pone.0149599.s004", "https://dx.doi.org/10.1371/journal.pone.0149599.s005", "https://dx.doi.org/10.1371/journal.pone.0149599.s006", "https://dx.doi.org/10.1371/journal.pone.0149599.s007"], "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Hydrogen_Isotopes_as_a_Sentinel_of_Biological_Invasion_by_the_Japanese_Beetle_i_Popillia_japonica_i_Newman_/3108169", "title"=>"Hydrogen Isotopes as a Sentinel of Biological Invasion by the Japanese Beetle, <i>Popillia japonica</i> (Newman)", "pos_in_sequence"=>1, "defined_type"=>4, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830769"], "description"=>"<p>The solid line shows the exponential fit for the temporal relationship.</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108202, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g005", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Estimated_days_between_arrival_and_capture_of_each_individual_beetle_captured_at_the_Portland_International_Airport_open_circles_and_the_average_for_each_year_blue_squares_with_bars_showing_95_confidence_intervals_note_year_with_combined_data_/3108202", "title"=>"Estimated days between arrival and capture of each individual beetle captured at the Portland International Airport (open circles) and the average for each year (blue squares, with bars showing 95% confidence intervals; note year with combined data).", "pos_in_sequence"=>6, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830775"], "description"=>"<p>A. <b>Probability of specific locations as sources for Japanese beetles</b> arriving at PDX as a function of latitude, using the “flat prior” model where all cities are assigned an equal prior likelihood. Filled circles show the mean posterior estimate from the hierarchical Bayesian model and vertical lines show 95% credible intervals. The linear fit is the weighted regression (P<0.001, slope = -0.00091 ± 0.00007), where each data point is weighted by the inverse of the credible interval (thus, smaller credible intervals have more weight). B. Same as A, but using the hierarchical Bayesian model in which the probability of each city is proportional to the cargo air traffic density from [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0149599#pone.0149599.ref039\" target=\"_blank\">39</a>]. The prior assignments are shown in small white circles. The weighted regression is not significant (P = 0.486, slope = -0.00044 ± 0.00064).</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108208, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g006", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Hydrogen_Isotopes_as_a_Sentinel_of_Biological_Invasion_by_the_Japanese_Beetle_i_Popillia_japonica_i_Newman_Fig_6/3108208", "title"=>"Hydrogen Isotopes as a Sentinel of Biological Invasion by the Japanese Beetle, <i>Popillia japonica</i> (Newman) - Fig 6", "pos_in_sequence"=>7, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830748"], "description"=>"<p>Black circles indicate sites of beetle collections used to develop the relationship between beetle and precipitation δ<sup>2</sup>H values, and the star indicates the study site at the Portland International Airport. Data compiled from refs <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0149599#pone.0149599.ref015\" target=\"_blank\">15</a>–<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0149599#pone.0149599.ref019\" target=\"_blank\">19</a>, as described in the Methods (<b><i>Potential Sources of Origin)</i>.</b></p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108181, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g001", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Map_of_continental_US_showing_the_status_of_the_Japanese_beetle_invasion_by_county_well_established_red_establishing_orange_occurrences_reported_yellow_and_no_occurrences_known_white_/3108181", "title"=>"Map of continental US showing the status of the Japanese beetle invasion, by county: well established (red), establishing (orange), occurrences reported (yellow), and no occurrences known (white).", "pos_in_sequence"=>2, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830781"], "description"=>"<p>A. <b>Number of Japanese beetles encountered per aircraft inspected over time.</b> Inspections began in 1991 and an average of 45.1 aircraft were inspected per year. B. Number of Japanese beetles trapped per year, and number of acres sprayed per year with pesticides by the Oregon Department of Agriculture in the vicinity of the Portland International Airport (PDX).</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108214, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g007", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Hydrogen_Isotopes_as_a_Sentinel_of_Biological_Invasion_by_the_Japanese_Beetle_i_Popillia_japonica_i_Newman_Fig_7/3108214", "title"=>"Hydrogen Isotopes as a Sentinel of Biological Invasion by the Japanese Beetle, <i>Popillia japonica</i> (Newman) - Fig 7", "pos_in_sequence"=>8, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830754"], "description"=>"<p><b>A) Relationship between δ</b><sup><b>2</b></sup><b>H in Japanese beetles and the δ</b><sup><b>2</b></sup><b>H of mean annual precipitation from the region where beetles were collected.</b> Small open symbols represent individual beetle collections. Grey circles are means of beetle samples from sites of similar δ<sup>2</sup>H in precipitation, with the size of the grey circle scaled to the number of samples from the site. Vertical and horizontal bars indicate 95% confidence intervals. B) Relationship between δ<sup>2</sup>H in Japanese beetles and the posterior estimate of monthly δ<sup>2</sup>H value of precipitation, with the most important month of year shown in color codes. Horizontal bars are 95% credible intervals. For both A and B, whole beetles were used for the δ<sup>2</sup>H analysis.</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108187, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g002", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Hydrogen_Isotopes_as_a_Sentinel_of_Biological_Invasion_by_the_Japanese_Beetle_i_Popillia_japonica_i_Newman_Fig_2/3108187", "title"=>"Hydrogen Isotopes as a Sentinel of Biological Invasion by the Japanese Beetle, <i>Popillia japonica</i> (Newman) - Fig 2", "pos_in_sequence"=>3, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}
  • {"files"=>["https://ndownloader.figshare.com/files/4830757"], "description"=>"<p>Symbols show means and bars two standard errors. Whole-body tissue samples were analyzed each week (circles), whereas wings (squares) and elytra (triangles) were sampled in week 0 and week 5.</p>", "links"=>[], "tags"=>["measures show signs", "Portland International Airport", "U.S.A", "Japanese beetle specimens", "δ2 H", "arrival", "δ2 H value", "origin", "Popillia japonica Newman"], "article_id"=>3108190, "categories"=>["Physiology", "Evolutionary Biology", "Environmental Sciences not elsewhere classified", "Ecology", "Biological Sciences not elsewhere classified", "Cancer", "Science Policy", "Infectious Diseases"], "users"=>["Bruce A. Hungate", "Diana N. Kearns", "Kiona Ogle", "Melanie Caron", "Jane C. Marks", "Helmuth W. Rogg"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0149599.g003", "stats"=>{"downloads"=>0, "page_views"=>0, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_sup_2_sup_H_of_Japanese_beetles_during_a_5_week_experiment_in_which_beetles_from_Virginia_were_reared_in_terracosms_with_plant_material_and_environmental_water_from_Oregon_/3108190", "title"=>"δ<sup>2</sup>H of Japanese beetles during a 5-week experiment in which beetles from Virginia were reared in terracosms with plant material and environmental water from Oregon.", "pos_in_sequence"=>4, "defined_type"=>1, "published_date"=>"2016-03-09 09:13:45"}

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{"start_date"=>"2016-01-01T00:00:00Z", "end_date"=>"2016-12-31T00:00:00Z", "subject_areas"=>[]}
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