Pliocene Paleoenvironments of Southeastern Queensland, Australia Inferred from Stable Isotopes of Marsupial Tooth Enamel
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{"title"=>"Pliocene Paleoenvironments of Southeastern Queensland, Australia Inferred from Stable Isotopes of Marsupial Tooth Enamel", "type"=>"journal", "authors"=>[{"first_name"=>"Shaena", "last_name"=>"Montanari", "scopus_author_id"=>"36705057200"}, {"first_name"=>"Julien", "last_name"=>"Louys", "scopus_author_id"=>"15136337000"}, {"first_name"=>"Gilbert J.", "last_name"=>"Price", "scopus_author_id"=>"8638312300"}], "year"=>2013, "source"=>"PLoS ONE", "identifiers"=>{"pui"=>"369102449", "doi"=>"10.1371/journal.pone.0066221", "isbn"=>"2012003222", "pmid"=>"23776636", "issn"=>"19326203", "scopus"=>"2-s2.0-84878934938", "sgr"=>"84878934938"}, "id"=>"d3616617-884d-3999-8f51-cf37f5eaa505", "abstract"=>"The Chinchilla Local Fauna is a diverse assemblage of both terrestrial and aquatic Pliocene vertebrates from the fluviatile Chinchilla Sand deposits of southeastern Queensland, Australia. It represents one of Australia's few but exceptionally rich Pliocene vertebrate localities, and as such is an important source of paleoecological data concerning Pliocene environmental changes and its effects on ecosystems. Prior inferences about the paleoenvironment of this locality made on the basis of qualitative observations have ranged from grassland to open woodland to wetland. Examination of the carbon and oxygen isotopes in the tooth enamel of marsupials from this site represents a quantitative method for inferring the paleoenvironments and paleoecology of the fossil fauna. Results from Chinchilla show that Protemnodon sp. indet. consumed both C3 and C4 photosynthesis plant types (mean δ13C = −14.5±2.0‰), and therefore probably occupied a mixed vegetation environment. Macropus sp. indet. from Chinchilla also consumed a mixed diet of both C3 and C4 plants, with more of a tendency for C4 plant consumption (mean δ13C = −10.3±2.3‰). Interestingly, their isotopic dietary signature is more consistent with tropical and temperate kangaroo communities than the sub-tropical communities found around Chinchilla today. Other genera sampled in this study include the extinct kangaroo Troposodon sp. indet. and the fossil diprotodontid Euryzygoma dunense each of which appear to have occupied distinct dietary niches. This study suggests that southeastern Queensland hosted a mosaic of tropical forests, wetlands and grasslands during the Pliocene and was much less arid than previously thought.", "link"=>"http://www.mendeley.com/research/pliocene-paleoenvironments-southeastern-queensland-australia-inferred-stable-isotopes-marsupial-toot", "reader_count"=>25, "reader_count_by_academic_status"=>{"Unspecified"=>3, "Professor > Associate Professor"=>1, "Researcher"=>8, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>5, "Student > Postgraduate"=>2, "Student > Master"=>1, "Student > Bachelor"=>3, "Professor"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>3, "Professor > Associate Professor"=>1, "Researcher"=>8, "Student > Doctoral Student"=>1, "Student > Ph. D. Student"=>5, "Student > Postgraduate"=>2, "Student > Master"=>1, "Student > Bachelor"=>3, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>3, "Environmental Science"=>4, "Agricultural and Biological Sciences"=>7, "Earth and Planetary Sciences"=>11}, "reader_count_by_subdiscipline"=>{"Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>11}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>7}, "Unspecified"=>{"Unspecified"=>3}, "Environmental Science"=>{"Environmental Science"=>4}}, "reader_count_by_country"=>{"Mexico"=>1, "United Kingdom"=>1}, "group_count"=>2}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1084607"], "description"=>"<p>δ<sup>13</sup>C diet is obtained by taking the average δ<sup>13</sup>C of enamel and subtracting the diet-enamel enrichment factor of 12‰ (Fraser et al. 2008). %C3 diet is calculated using equation 1 in Johnson et al. (1997) with 26.5‰ and 12.5‰ used as the average for C3 and C4 plants in the landscape.</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "fossil"], "article_id"=>718061, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t005", "stats"=>{"downloads"=>4, "page_views"=>14, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_13_C_diet_and_C3_diet_of_fossil_and_modern_marsupials_/718061", "title"=>"δ<sup>13</sup>C diet and %C3 diet of fossil and modern marsupials.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:21"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084606"], "description"=>"<p>Isotope values are presented in per mil (‰). See methods for acronyms of region names. Header labels are taxon, n (sample size), biogeographic region (region), climate, carbon isotope value (δ<sup>13</sup>C), oxygen isotope value (δ<sup>18</sup>O), and standard deviation (stdev).</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "biogeographic", "climatic", "regions", "murphy", "et"], "article_id"=>718060, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t006", "stats"=>{"downloads"=>0, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_general_statistics_for_modern_Macropus_spp_values_in_different_biogeographic_and_climatic_regions_from_Murphy_et_al_2007a_/718060", "title"=>"Summary of general statistics for modern <i>Macropus</i> spp. values in different biogeographic and climatic regions from Murphy et al. (2007a).", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:20"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084603"], "description"=>"<p>Comparisons are pairwise and p values are in bold if significant (p = 0.05).</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "hsd", "fossil"], "article_id"=>718057, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t003", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_results_from_Tukey_s_HSD_test_from_the_13_C_and_948_18_O_fossil_ANOVAs_/718057", "title"=>"Summary of results from Tukey's HSD test from the δ<sup>13</sup>C and δ<sup>18</sup>O fossil ANOVAs.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:17"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084601"], "description"=>"<p>A. δ<sup>18</sup>O vs. δ<sup>13</sup>C values for <i>Macropus</i> spp. from six modern localities, grouped by their climatic region. Labels on axes indicate the boundary between a C3 dominated and a C3/C4 mixed environment. B. δ<sup>18</sup>O vs. δ<sup>13</sup>C values for <i>Troposodon</i> sp. indet., <i>Protemnodon</i> sp. indet., <i>Euryzygoma dunense</i>, and <i>Macropus</i> sp. indet. from Chinchilla Sand. Each taxon is marked by a symbol as seen in the legend.</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "carbon", "fossil"], "article_id"=>718055, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.g002", "stats"=>{"downloads"=>4, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Bivariate_plot_of_carbon_and_oxygen_for_fossil_and_modern_teeth_/718055", "title"=>"Bivariate plot of carbon and oxygen for fossil and modern teeth.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-12 02:14:15"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084600"], "description"=>"<p>Chinchilla is marked on this map, along with the shaded areas representing the biogeographic zones where modern kangaroo tooth enamel stable isotope values were taken from Murphy et al. 2007a to compare to fossil values. Abbreviations for biogeographic zones are in the <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0066221#s2\" target=\"_blank\">methods</a> section.</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "chinchilla", "fossil"], "article_id"=>718054, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.g001", "stats"=>{"downloads"=>1, "page_views"=>82, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Map_of_Chinchilla_Sand_Formation_fossil_locality_/718054", "title"=>"Map of Chinchilla Sand Formation fossil locality.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-06-12 02:14:14"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084609", "https://ndownloader.figshare.com/files/1084611"], "description"=>"<div><p>The Chinchilla Local Fauna is a diverse assemblage of both terrestrial and aquatic Pliocene vertebrates from the fluviatile Chinchilla Sand deposits of southeastern Queensland, Australia. It represents one of Australia's few but exceptionally rich Pliocene vertebrate localities, and as such is an important source of paleoecological data concerning Pliocene environmental changes and its effects on ecosystems. Prior inferences about the paleoenvironment of this locality made on the basis of qualitative observations have ranged from grassland to open woodland to wetland. Examination of the carbon and oxygen isotopes in the tooth enamel of marsupials from this site represents a quantitative method for inferring the paleoenvironments and paleoecology of the fossil fauna. <a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0066221#s3\" target=\"_blank\">Results</a> from Chinchilla show that <i>Protemnodon</i> sp. indet. consumed both C3 and C4 photosynthesis plant types (mean δ<sup>13</sup>C = −14.5±2.0‰), and therefore probably occupied a mixed vegetation environment. <i>Macropus</i> sp. indet. from Chinchilla also consumed a mixed diet of both C3 and C4 plants, with more of a tendency for C4 plant consumption (mean δ<sup>13</sup>C = −10.3±2.3‰). Interestingly, their isotopic dietary signature is more consistent with tropical and temperate kangaroo communities than the sub-tropical communities found around Chinchilla today. Other genera sampled in this study include the extinct kangaroo <i>Troposodon</i> sp. indet. and the fossil diprotodontid <i>Euryzygoma dunense</i> each of which appear to have occupied distinct dietary niches. This study suggests that southeastern Queensland hosted a mosaic of tropical forests, wetlands and grasslands during the Pliocene and was much less arid than previously thought.</p></div>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "paleoenvironments", "southeastern", "australia", "inferred", "marsupial"], "article_id"=>718063, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>["https://dx.doi.org/10.1371/journal.pone.0066221.s001", "https://dx.doi.org/10.1371/journal.pone.0066221.s002"], "stats"=>{"downloads"=>11, "page_views"=>17, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Pliocene_Paleoenvironments_of_Southeastern_Queensland_Australia_Inferred_from_Stable_Isotopes_of_Marsupial_Tooth_Enamel_/718063", "title"=>"Pliocene Paleoenvironments of Southeastern Queensland, Australia Inferred from Stable Isotopes of Marsupial Tooth Enamel", "pos_in_sequence"=>0, "defined_type"=>4, "published_date"=>"2013-06-12 02:14:23"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084608"], "description"=>"<p>Comparisons are pairwise and p values are bolded if significant (p = 0.05). Regional abbreviations: CYP (Cape York Peninsula), ARP (Arnhem Plateau), BBS (Brigalow Belt South), and SEQ (South East Queensland), SEH (South Eastern Highlands) and MGD (Miller Grass Downs).</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "hsd", "anovas", "fossil"], "article_id"=>718062, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t004", "stats"=>{"downloads"=>0, "page_views"=>10, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_results_from_Tukey_s_HSD_test_from_the_13_C_and_948_18_O_ANOVAs_of_modern_Macropus_spp_and_fossil_Macropus_sp_indet_from_Chinchilla_/718062", "title"=>"Summary of results from Tukey's HSD test from the δ<sup>13</sup>C and δ<sup>18</sup>O ANOVAs of modern <i>Macropus</i> spp. and fossil <i>Macropus</i> sp. indet. from Chinchilla.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:22"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084605"], "description"=>"<p>Mean, n, and standard deviation (stdev) for both carbon and oxygen isotope values for all materials sampled. δ<sup>13</sup>C Suess effect is the raw carbon isotope value with 1.2 per mil subtracted to account for the modern depletion in atmospheric δ<sup>13</sup>C. Isotope values are presented in per mil (‰).</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "isotope"], "article_id"=>718059, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t001", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Stable_isotope_general_statistics_/718059", "title"=>"Stable isotope general statistics.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:19"}
  • {"files"=>["https://ndownloader.figshare.com/files/1084604"], "description"=>"<p>Summary of the test statistics for each ANOVA, including degrees of freedom (dF), F-statistic, p (probability), and significance.</p>", "links"=>[], "tags"=>["ecology", "ecosystems", "Global change ecology", "paleoecology", "Terrestrial ecology", "Evolutionary biology", "Paleontology", "paleobiology", "Vertebrate paleontology", "Radiochemistry", "isotopes", "geochemistry", "anova"], "article_id"=>718058, "categories"=>["Chemistry", "Biological Sciences", "Earth and Environmental Sciences"], "users"=>["Shaena Montanari", "Julien Louys", "Gilbert J. Price"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0066221.t002", "stats"=>{"downloads"=>4, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_ANOVA_results_/718058", "title"=>"Summary of ANOVA results.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-06-12 02:14:18"}

PMC Usage Stats | Further Information

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Relative Metric

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