Seabird Guano Fertilizes Baltic Sea Littoral Food Webs
Publication Date
April 11, 2013
Journal
PLOS ONE
Authors
Karine Gagnon, Eva Rothäusler, Anneli Syrjänen, Maria Yli Renko, et al
Volume
8
Issue
4
Pages
e61284
DOI
https://dx.plos.org/10.1371/journal.pone.0061284
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0061284
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/23593452
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3623859
Europe PMC
http://europepmc.org/abstract/MED/23593452
Web of Science
000317383200049
Scopus
84876115088
Mendeley
http://www.mendeley.com/research/seabird-guano-fertilizes-baltic-sea-littoral-food-webs
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Mendeley | Further Information

{"title"=>"Seabird Guano Fertilizes Baltic Sea Littoral Food Webs", "type"=>"journal", "authors"=>[{"first_name"=>"Karine", "last_name"=>"Gagnon", "scopus_author_id"=>"54406744500"}, {"first_name"=>"Eva", "last_name"=>"Rothäusler", "scopus_author_id"=>"9239500200"}, {"first_name"=>"Anneli", "last_name"=>"Syrjänen", "scopus_author_id"=>"55908001100"}, {"first_name"=>"Maria", "last_name"=>"Yli-Renko", "scopus_author_id"=>"27468079400"}, {"first_name"=>"Veijo", "last_name"=>"Jormalainen", "scopus_author_id"=>"56070662300"}], "year"=>2013, "source"=>"PLoS ONE", "identifiers"=>{"scopus"=>"2-s2.0-84876115088", "pmid"=>"23593452", "sgr"=>"84876115088", "doi"=>"10.1371/journal.pone.0061284", "isbn"=>"10.1371/journal.pone.0061284", "issn"=>"19326203", "pui"=>"368717461"}, "id"=>"ffba25c2-4659-3432-a545-f4ea02d38a7c", "abstract"=>"Nutrient enrichment in coastal marine systems can have profound impacts on trophic networks. In the Baltic Sea, the population of Great Cormorant (Phalacrocorax carbo sinensis) has increased nearly exponentially since the mid-1990 s, and colonies of these seabirds can be important sources of nitrogen enrichment for nearby benthic communities due to guano runoff. In this study we used stable isotope analyses and diet mixing models to determine the extent of nitrogen enrichment from cormorant colonies, as well as to examine any possible changes in herbivore diet preferences due to enrichment. We found significantly higher levels of δ(15)N in samples from colony islands than control islands for producers (the dominant macroalga Fucus vesiculosus, filamentous algae, and periphyton) and herbivores, as well as a positive correlation between enrichment and nest density in colony sites. We also found that enrichment increased over the breeding season of the cormorants, with higher enrichment in late summer than early summer. While the amount of total nitrogen did not differ between colony and control sites, the amount of guano-based nitrogen in algae was >50% in most sites, indicating high nitrogen enrichment from colonies. Herbivores (the isopod Idotea balthica and the gastropod Theodoxus fluviatilis) preferred feeding upon the dominant macroalga Fucus vesiculosus rather than on filamentous algae or periphyton in both control and colony, and there was a significant increase in periphyton consumption near colony sites. Overall, guano from cormorant colonies seems to have effects on both producers and herbivores, as well as the potential to modify algae-herbivore interactions.", "link"=>"http://www.mendeley.com/research/seabird-guano-fertilizes-baltic-sea-littoral-food-webs", "reader_count"=>31, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Researcher"=>13, "Student > Ph. D. Student"=>8, "Student > Postgraduate"=>1, "Student > Master"=>1, "Other"=>1, "Student > Bachelor"=>4, "Lecturer > Senior Lecturer"=>1, "Unspecified"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Researcher"=>13, "Student > Ph. D. Student"=>8, "Student > Postgraduate"=>1, "Student > Master"=>1, "Other"=>1, "Student > Bachelor"=>4, "Lecturer > Senior Lecturer"=>1, "Unspecified"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>3, "Environmental Science"=>11, "Agricultural and Biological Sciences"=>16, "Earth and Planetary Sciences"=>1}, "reader_count_by_subdiscipline"=>{"Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>16}, "Unspecified"=>{"Unspecified"=>3}, "Environmental Science"=>{"Environmental Science"=>11}}, "reader_count_by_country"=>{"Sweden"=>1, "Argentina"=>1, "United States"=>3, "Mexico"=>1}, "group_count"=>2}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1021976"], "description"=>"<p>These factors were calculated using the equations suggested for invertebrate consumers in Caut et al. <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0061284#pone.0061284-Caut1\" target=\"_blank\">[34]</a>. Average from colony sites and standard deviation are shown. Also shown are trophic enrichment factors from three previous studies which were also used to compare model results. In these cases, the same enrichment factors were used for the three source species.</p>", "links"=>[], "tags"=>["enrichment", "sources", "mixing"], "article_id"=>680492, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.t002", "stats"=>{"downloads"=>0, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Trophic_enrichment_factors_mean_standard_deviation_of_15_N_and_948_13_C_from_three_diet_sources_used_in_the_diet_mixing_analyses_/680492", "title"=>"Trophic enrichment factors (mean ± standard deviation) of δ<sup>15</sup>N and δ<sup>13</sup>C from three diet sources used in the diet mixing analyses.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-04-11 00:08:12"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021973"], "description"=>"<p>Results shown are based on diet mixing analysis using diet-dependent trophic fractionation factors following Caut et al. <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0061284#pone.0061284-Caut1\" target=\"_blank\">[34]</a>, given in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0061284#pone-0061284-t002\" target=\"_blank\">Table 2</a>. FUC =  <i>Fucus vesiculosus</i>, FIL =  filamentous algae (<i>Cladophora glomerata</i> and <i>Ulva</i> spp.), PER =  periphyton.</p>", "links"=>[], "tags"=>["sources"], "article_id"=>680489, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g006", "stats"=>{"downloads"=>0, "page_views"=>13, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Proportion_of_sources_mean_SE_from_diet_analysis_of_Idotea_balthica_and_Theodoxus_fluviatilis_from_colony_and_control_sites_/680489", "title"=>"Proportion of sources (mean ± SE) from diet analysis of <i>Idotea balthica</i> and <i>Theodoxus fluviatilis</i> from colony and control sites.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:09"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021970"], "description"=>"<p>Significant regressions are shown in bold.</p>", "links"=>[], "tags"=>["cormorant"], "article_id"=>680487, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g004", "stats"=>{"downloads"=>1, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Effect_of_cormorant_nest_density_on_15_N_values_for_all_species_from_colony_sites_/680487", "title"=>"Effect of cormorant nest density on δ<sup>15</sup>N values for all species from colony sites.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021971"], "description"=>"<p>Median, 25%, 75%, 5%, and 95% credibility intervals are shown. Letters refer to sites listed in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0061284#pone-0061284-t001\" target=\"_blank\">Table 1</a>.</p>", "links"=>[], "tags"=>["nitrogen", "uptake", "cormorant", "guano", "algae", "periphyton"], "article_id"=>680488, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g005", "stats"=>{"downloads"=>0, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Proportion_of_nitrogen_uptake_from_cormorant_guano_in_algae_and_periphyton_from_colony_sites_/680488", "title"=>"Proportion of nitrogen uptake from cormorant guano in algae and periphyton from colony sites.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:08"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021969"], "description"=>"<p>Different letters indicate significantly different values within control or colony sites.</p>", "links"=>[], "tags"=>["sections", "thalli"], "article_id"=>680486, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g003", "stats"=>{"downloads"=>0, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_15_N_values_mean_177_SE_of_different_sections_of_Fucus_vesiculosus_thalli_from_colony_black_bars_and_control_white_bars_sites_/680486", "title"=>"δ<sup>15</sup>N values (mean ± SE) of different sections of <i>Fucus vesiculosus</i> thalli from colony (black bars) and control (white bars) sites.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:06"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021975"], "description"=>"<p>Statistically significant values are indicated in bold. Note that each species was analysed separately. For <i>Fucus vesiculosus</i>, the average for each individual (as calculated from the three thallus sections) was used.</p>", "links"=>[], "tags"=>["anovas", "islands"], "article_id"=>680491, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.t003", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_mixed_ANOVAs_showing_the_effects_of_colony_islands_on_15_N_and_948_13_C_values_for_different_species_/680491", "title"=>"Summary of mixed ANOVAs showing the effects of colony islands on δ<sup>15</sup>N and δ<sup>13</sup>C values for different species.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-04-11 00:08:11"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021974"], "description"=>"<p>The average and maximum fetch are given for the actual sampling point from each island. Data from the colony islands were provided by the Finnish Environment Institute, which monitors cormorant colonies.</p>", "links"=>[], "tags"=>["breeding"], "article_id"=>680490, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.t001", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_colony_and_control_site_characteristics_including_fetch_breeding_pairs_area_and_year_of_colony_establishment_for_colony_islands_/680490", "title"=>"Summary of colony and control site characteristics, including fetch, breeding pairs, area, and year of colony establishment (for colony islands).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-04-11 00:08:10"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021968"], "description"=>"<p>POM  =  particulate organic matter (control sites only), GUA  =  guano (colony sites only), FUC =  <i>Fucus vesiculosus</i>, CLA =  <i>Cladophora glomerata</i>, ULV =  <i>Ulva</i> spp., PER =  periphyton, IDO =  <i>Idotea balthica</i>, THE =  <i>Theodoxus fluviatilis</i>.</p>", "links"=>[], "tags"=>["isotope", "signatures", "samples", "sites"], "article_id"=>680485, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g002", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Stable_isotope_signatures_mean_177_SE_of_all_samples_from_colony_black_circles_and_control_sites_white_circles_/680485", "title"=>"Stable isotope signatures (mean±SE) of all samples from colony (black circles) and control sites (white circles).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:05"}
  • {"files"=>["https://ndownloader.figshare.com/files/1021966"], "description"=>"<p>The letters refer to sites listed in <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0061284#pone-0061284-t001\" target=\"_blank\">Table 1</a>.</p>", "links"=>[], "tags"=>["sites", "southwestern", "finnish"], "article_id"=>680484, "categories"=>["Inorganic Chemistry"], "users"=>["Karine Gagnon", "Eva Rothäusler", "Anneli Syrjänen", "Maria Yli-Renko", "Veijo Jormalainen"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0061284.g001", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Locations_of_colony_circles_and_control_stars_sites_along_the_southwestern_Finnish_coast_/680484", "title"=>"Locations of colony (circles) and control (stars) sites along the southwestern Finnish coast.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-04-11 00:08:04"}

PMC Usage Stats | Further Information

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  • {"unique-ip"=>"8", "full-text"=>"7", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"7"}
  • {"unique-ip"=>"4", "full-text"=>"4", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
  • {"unique-ip"=>"5", "full-text"=>"5", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"10", "full-text"=>"9", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"5", "full-text"=>"6", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"16", "full-text"=>"15", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}
  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"5"}

Relative Metric

{"start_date"=>"2013-01-01T00:00:00Z", "end_date"=>"2013-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Biology and life sciences/Ecology", "average_usage"=>[290, 478, 601, 716, 816, 914, 1016, 1112, 1203, 1285, 1373, 1451, 1516]}, {"subject_area"=>"/Biology and life sciences/Organisms", "average_usage"=>[281, 484, 611, 728, 835, 934, 1030, 1123, 1214, 1299, 1383, 1464]}, {"subject_area"=>"/Ecology and environmental sciences", "average_usage"=>[284, 475, 603, 722, 826, 928, 1026, 1129, 1225, 1310, 1390, 1468, 1549]}, {"subject_area"=>"/Ecology and environmental sciences/Plant ecology", "average_usage"=>[253, 410]}, {"subject_area"=>"/Medicine and health sciences/Nutrition", "average_usage"=>[273, 476, 611, 714, 821, 911, 1005, 1103, 1201, 1287, 1388, 1478, 1557]}]}
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