Contrasting Population and Diet Influences on Gut Length of an Omnivorous Tropical Fish, the Trinidadian Guppy (Poecilia reticulata)
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{"title"=>"Contrasting population and diet influences on gut length of an omnivorous tropical fish, the trinidadian guppy (poecilia reticulata)", "type"=>"journal", "authors"=>[{"first_name"=>"Eugenia", "last_name"=>"ZandonÃ", "scopus_author_id"=>"22952286100"}, {"first_name"=>"Sonya K.", "last_name"=>"Auer", "scopus_author_id"=>"16063343000"}, {"first_name"=>"Susan S.", "last_name"=>"Kilham", "scopus_author_id"=>"6701703229"}, {"first_name"=>"David N.", "last_name"=>"Reznick", "scopus_author_id"=>"7003534410"}], "year"=>2015, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "doi"=>"10.1371/journal.pone.0136079", "sgr"=>"84959432092", "scopus"=>"2-s2.0-84959432092", "pmid"=>"26360601", "pui"=>"608546205"}, "id"=>"b2c25295-279a-3919-8226-b01120aa70d6", "abstract"=>"Phenotypic plasticity is advantageous for organisms that live in variable environments. The digestive system is particularly plastic, responding to changes in diet. Gut length is the result of a trade-off between maximum nutrient absorption and minimum cost for its maintenance and it can be influenced by diet and by evolutionary history. We assessed variation in gut length of Trinidadian guppies (Poecilia reticulata) as a function of diet, season, ontogeny, and local adaptation. Populations of guppies adapted to different predation levels have evolved different life history traits and have different diets. We sampled guppies from sites with low (LP) and high predation (HP) pressure in the Aripo and Guanapo Rivers in Trinidad. We collected fish during both the dry and wet season and assessed their diet and gut length. During the dry season, guppies from HP sites fed mostly on invertebrates, while guppies in the LP sites fed mainly on detritus. During the wet season, the diet of LP and HP populations became very similar. We did not find strong evidence of an ontogenetic diet shift. Gut length was negatively correlated with the proportion of invertebrates in diet across fish from all sites, supporting the hypothesis that guppy digestive systems adapt in length to changes in diet. Population of origin also had an effect on gut length, as HP and LP fish maintained different gut lengths even in the wet season, when their diets were very similar and individuals in both types of populations fed mostly on detritus. Thus, both environment and population of origin influenced guppies gut length, but population of origin seemed to have a stronger effect. Our study also showed that, even in omnivorous fish, gut length adapted to different diets, being more evident when the magnitude of difference between animal and plant material in the diet was very large. [ABSTRACT FROM AUTHOR] ", "link"=>"http://www.mendeley.com/research/contrasting-population-diet-influences-gut-length-omnivorous-tropical-fish-trinidadian-guppy-poecili", "reader_count"=>24, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Librarian"=>1, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>14, "Student > Master"=>1, "Student > Bachelor"=>3}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Librarian"=>1, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>14, "Student > Master"=>1, "Student > Bachelor"=>3}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>20, "Social Sciences"=>1, "Environmental Science"=>1}, "reader_count_by_subdiscipline"=>{"Social Sciences"=>{"Social Sciences"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>20}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>1}, "Environmental Science"=>{"Environmental Science"=>1}}, "reader_count_by_country"=>{"United States"=>1}, "group_count"=>2}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/2258826"], "description"=>"<p>Percent diet composition is shown for the dry (a) and the wet (b) seasons. Data showed here represent the estimated marginal means calculated by the MANCOVA on arcsin transformed data. Estimated marginal means and standard errors have been back-transformed for the graphical representation. Food categories analyzed are invertebrates, in dark grey and amorphous detritus. LP: low predation; HP: high predation. Bars represent ±1 SE.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540126, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g001", "stats"=>{"downloads"=>3, "page_views"=>24, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Season_effect_on_the_diet_of_HP_and_LP_guppies_from_the_Aripo_River_/1540126", "title"=>"Season effect on the diet of HP and LP guppies from the Aripo River.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258840", "https://ndownloader.figshare.com/files/2258841"], "description"=>"<div><p>Phenotypic plasticity is advantageous for organisms that live in variable environments. The digestive system is particularly plastic, responding to changes in diet. Gut length is the result of a trade-off between maximum nutrient absorption and minimum cost for its maintenance and it can be influenced by diet and by evolutionary history. We assessed variation in gut length of Trinidadian guppies (<i>Poecilia reticulata</i>) as a function of diet, season, ontogeny, and local adaptation. Populations of guppies adapted to different predation levels have evolved different life history traits and have different diets. We sampled guppies from sites with low (LP) and high predation (HP) pressure in the Aripo and Guanapo Rivers in Trinidad. We collected fish during both the dry and wet season and assessed their diet and gut length. During the dry season, guppies from HP sites fed mostly on invertebrates, while guppies in the LP sites fed mainly on detritus. During the wet season, the diet of LP and HP populations became very similar. We did not find strong evidence of an ontogenetic diet shift. Gut length was negatively correlated with the proportion of invertebrates in diet across fish from all sites, supporting the hypothesis that guppy digestive systems adapt in length to changes in diet. Population of origin also had an effect on gut length, as HP and LP fish maintained different gut lengths even in the wet season, when their diets were very similar and individuals in both types of populations fed mostly on detritus. Thus, both environment and population of origin influenced guppies gut length, but population of origin seemed to have a stronger effect. Our study also showed that, even in omnivorous fish, gut length adapted to different diets, being more evident when the magnitude of difference between animal and plant material in the diet was very large.</p></div>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540140, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0136079.s001", "https://dx.doi.org/10.1371/journal.pone.0136079.s002"], "stats"=>{"downloads"=>1, "page_views"=>26, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/Contrasting_Population_and_Diet_Influences_on_Gut_Length_of_an_Omnivorous_Tropical_Fish_the_Trinidadian_Guppy_Poecilia_reticulata_/1540140", "title"=>"Contrasting Population and Diet Influences on Gut Length of an Omnivorous Tropical Fish, the Trinidadian Guppy (<i>Poecilia reticulata</i>)", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258837"], "description"=>"<p>SS = sums of squares; df = degrees of freedom; MS = mean squares. All F-ratios are based on type-III sums of squares.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540137, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.t001", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Univariate_ANCOVA_results_on_the_effects_of_population_of_origin_and_season_on_the_proportion_of_invertebrates_and_detritus_in_the_diets_of_guppies_from_the_Aripo_River_in_Trinidad_/1540137", "title"=>"Univariate ANCOVA results on the effects of population of origin and season on the proportion of invertebrates and detritus in the diets of guppies from the Aripo River in Trinidad.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258835"], "description"=>"<p>Only guppies between 14 and 20 mm were included. Each data point represents one site (Aripo HP and LP for both dry and wet season, and Guanapo HP and LP from the dry season). Relative gut length was calculated as the gut length divided by fish length. An average value was assigned for the proportion of invertebrates for each site, which was the estimated marginal mean obtained from the diet analysis (data for the Guanapo fish are from [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0136079#pone.0136079.ref028\" target=\"_blank\">28</a>]).</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540135, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g006", "stats"=>{"downloads"=>2, "page_views"=>23, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_proportion_of_invertebrates_in_diets_vs_mean_relative_gut_length_/1540135", "title"=>"Mean proportion of invertebrates in diets vs. mean relative gut length.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258831"], "description"=>"<p>Fish from high predation (HP) are indicated with filled circles, and from low predation (LP) with open triangles. Data are not transformed and equations and R<sup>2</sup> values are calculated on non-transformed data. Trendlines are exponential.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540131, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g005", "stats"=>{"downloads"=>2, "page_views"=>20, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Correlation_between_fish_standard_length_and_guppies_gut_length_in_the_Guanapo_River_/1540131", "title"=>"Correlation between fish standard length and guppies gut length in the Guanapo River.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258830"], "description"=>"<p>Only data from guppies between 14 and 20 mm are included in this graph. Guppies from the HP (high predation) population are shown in filled circles, while guppies from the LP (low predation) population are in open triangles. Bars represent ±1 SE.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540130, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g004", "stats"=>{"downloads"=>6, "page_views"=>32, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Mean_guppies_gut_length_for_HP_and_LP_guppies_during_the_dry_and_the_wet_season_in_the_Aripo_River_/1540130", "title"=>"Mean guppies gut length for HP and LP guppies during the dry and the wet season in the Aripo River.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258839"], "description"=>"<p>Proportions of the 3 food items are estimated marginal means (±SE) calculated by the MANCOVA (population of origin as the fixed effect and fish length as a covariate); data reported have been back-transformed.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540139, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.t002", "stats"=>{"downloads"=>1, "page_views"=>35, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Diet_composition_of_Guanapo_River_guppies_from_high_predation_HP_N_21_and_low_predation_LP_N_21_sites_during_the_dry_season_data_from_28_/1540139", "title"=>"Diet composition of Guanapo River guppies from high predation (HP; N = 21) and low predation (LP; N = 21) sites during the dry season (data from [28]).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258829"], "description"=>"<p>Guppies from high predation (HP, filled circles) and low predation (LP, open triangles) populations in the dry (a) and wet (b) season are shown. Data are not transformed and equations and R<sup>2</sup> values are calculated on non-transformed data. Trendlines are exponential.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540129, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g003", "stats"=>{"downloads"=>2, "page_views"=>64, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Correlation_between_fish_standard_length_and_guppies_gut_length_in_the_Aripo_River_/1540129", "title"=>"Correlation between fish standard length and guppies gut length in the Aripo River.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}
  • {"files"=>["https://ndownloader.figshare.com/files/2258827"], "description"=>"<p>Wet season (filled diamonds) and dry season (open circles) fish are shown. Regression line shows the only significant relationship, which is between proportion of invertebrates in diet and guppy length during the wet season.</p>", "links"=>[], "tags"=>["gut length", "hp", "life history traits", "guppies gut length", "Omnivorous Tropical Fish", "ontogenetic diet shift", "lp", "Poecilia reticulata"], "article_id"=>1540127, "categories"=>["Uncategorised"], "users"=>["Eugenia Zandonà", "Sonya K. Auer", "Susan S. Kilham", "David N. Reznick"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0136079.g002", "stats"=>{"downloads"=>1, "page_views"=>17, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Correlation_between_guppy_standard_length_and_a_proportion_of_invertebrates_and_b_proportion_of_detritus_in_guppies_diet_from_the_Aripo_River_/1540127", "title"=>"Correlation between guppy standard length and a) proportion of invertebrates and b) proportion of detritus in guppies diet from the Aripo River.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-09-11 03:18:38"}

PMC Usage Stats | Further Information

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  • {"unique-ip"=>"7", "full-text"=>"5", "pdf"=>"6", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"11"}
  • {"unique-ip"=>"11", "full-text"=>"5", "pdf"=>"7", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2015", "month"=>"12"}
  • {"unique-ip"=>"1", "full-text"=>"1", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"1"}
  • {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"3"}
  • {"unique-ip"=>"11", "full-text"=>"9", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"4"}
  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"5"}
  • {"unique-ip"=>"3", "full-text"=>"5", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"6"}
  • {"unique-ip"=>"8", "full-text"=>"10", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"7"}
  • {"unique-ip"=>"8", "full-text"=>"8", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"8"}
  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"9"}
  • {"unique-ip"=>"5", "full-text"=>"7", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"10"}
  • {"unique-ip"=>"5", "full-text"=>"5", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"11"}
  • {"unique-ip"=>"5", "full-text"=>"8", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2016", "month"=>"12"}
  • {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"1"}
  • {"unique-ip"=>"4", "full-text"=>"3", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"2"}
  • {"unique-ip"=>"7", "full-text"=>"7", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"3"}
  • {"unique-ip"=>"2", "full-text"=>"2", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"4"}
  • {"unique-ip"=>"6", "full-text"=>"6", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"5"}
  • {"unique-ip"=>"3", "full-text"=>"3", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"6"}
  • {"unique-ip"=>"4", "full-text"=>"4", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"7"}
  • {"unique-ip"=>"12", "full-text"=>"14", "pdf"=>"4", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"8"}
  • {"unique-ip"=>"30", "full-text"=>"30", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"9"}
  • {"unique-ip"=>"13", "full-text"=>"14", "pdf"=>"2", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"10"}
  • {"unique-ip"=>"17", "full-text"=>"18", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"7", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"11"}
  • {"unique-ip"=>"9", "full-text"=>"5", "pdf"=>"1", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"6", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2017", "month"=>"12"}
  • {"unique-ip"=>"18", "full-text"=>"17", "pdf"=>"3", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"1"}
  • {"unique-ip"=>"1", "full-text"=>"1", "pdf"=>"0", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"2"}
  • {"unique-ip"=>"57", "full-text"=>"65", "pdf"=>"14", "abstract"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"1", "supp-data"=>"1", "cited-by"=>"0", "year"=>"2018", "month"=>"3"}
  • {"unique-ip"=>"20", "full-text"=>"20", "pdf"=>"0", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"1"}
  • {"unique-ip"=>"31", "full-text"=>"35", "pdf"=>"4", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"11"}
  • {"unique-ip"=>"48", "full-text"=>"56", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"9"}
  • {"unique-ip"=>"23", "full-text"=>"30", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"4"}
  • {"unique-ip"=>"45", "full-text"=>"50", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"5"}
  • {"unique-ip"=>"28", "full-text"=>"26", "pdf"=>"5", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"1", "cited-by"=>"1", "year"=>"2018", "month"=>"6"}
  • {"unique-ip"=>"13", "full-text"=>"11", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"3", "cited-by"=>"0", "year"=>"2018", "month"=>"7"}
  • {"unique-ip"=>"35", "full-text"=>"42", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
  • {"unique-ip"=>"26", "full-text"=>"31", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"10"}
  • {"unique-ip"=>"28", "full-text"=>"29", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"12"}
  • {"unique-ip"=>"16", "full-text"=>"16", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"2"}
  • {"unique-ip"=>"38", "full-text"=>"41", "pdf"=>"3", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"3"}
  • {"unique-ip"=>"44", "full-text"=>"50", "pdf"=>"1", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"2", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2019", "month"=>"4"}

Relative Metric

{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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