Paleodiet of Lamini camelids (Mammalia: Artiodactyla) from the Pleistocene of southern Brazil: insights from stable isotope analysis (δ13C, δ18O)
Camelids (Camelidae) were a diverse and widely distributed group in South America during the Pleistocene. According to the fossil record, three species inhabited southern Brazil in the recent past: Hemiauchenia paradoxa, Lama guanicoe, and Vicugna vicugna. The analysis of carbon and oxygen stable is...
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| Veröffentlicht in: | Paleobiology 2022-08, Vol.48 (3), p.513-526 |
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| description | Camelids (Camelidae) were a diverse and widely distributed group in South America during the Pleistocene. According to the fossil record, three species inhabited southern Brazil in the recent past: Hemiauchenia paradoxa, Lama guanicoe, and Vicugna vicugna. The analysis of carbon and oxygen stable isotope ratios in bioapatite provides insight into the paleobiology of nonliving animals and the environment they used to inhabit. We applied this tool to investigate the diet of camelids from two geological localities in southern Brazil: Touro Passo and Santa Vitória Formations (H. paradoxa, n = 7; L. guanicoe, n = 6; V. vicugna, n = 4). Carbon stable isotopes from enamel, dentin, and bone indicated that H. paradoxa and L. guanicoe had diets comprising mostly C3 grasses, but the latter showed a broader diet due to one individual with a mixed diet, whereas V. vicugna had a mixed C3–C4 diet. These different foraging behaviors may have minimized interspecific competition and favored niche partitioning and the coexistence of related species. Combined oxygen and carbon isotope data showed a consistent diet according to climate, probably due to the greater availability in glacial periods of cool-season grasses, which mainly use the C3 photosynthetic pathway. Given their adaptations to grazing, the climate amelioration, followed by the loss of grasslands, likely had a great impact on camelid populations, leading to their extinction in southern Brazil. These results, therefore, contribute to the understanding of the dynamics of paleocommunities in this region. |
| doi_str_mv | 10.1017/pab.2022.10 |
| format | Article |
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According to the fossil record, three species inhabited southern Brazil in the recent past: Hemiauchenia paradoxa, Lama guanicoe, and Vicugna vicugna. The analysis of carbon and oxygen stable isotope ratios in bioapatite provides insight into the paleobiology of nonliving animals and the environment they used to inhabit. We applied this tool to investigate the diet of camelids from two geological localities in southern Brazil: Touro Passo and Santa Vitória Formations (H. paradoxa, n = 7; L. guanicoe, n = 6; V. vicugna, n = 4). Carbon stable isotopes from enamel, dentin, and bone indicated that H. paradoxa and L. guanicoe had diets comprising mostly C3 grasses, but the latter showed a broader diet due to one individual with a mixed diet, whereas V. vicugna had a mixed C3–C4 diet. These different foraging behaviors may have minimized interspecific competition and favored niche partitioning and the coexistence of related species. Combined oxygen and carbon isotope data showed a consistent diet according to climate, probably due to the greater availability in glacial periods of cool-season grasses, which mainly use the C3 photosynthetic pathway. Given their adaptations to grazing, the climate amelioration, followed by the loss of grasslands, likely had a great impact on camelid populations, leading to their extinction in southern Brazil. These results, therefore, contribute to the understanding of the dynamics of paleocommunities in this region.</description><identifier>ISSN: 0094-8373</identifier><identifier>EISSN: 1938-5331</identifier><identifier>DOI: 10.1017/pab.2022.10</identifier><language>eng</language><publisher>New York, USA: The Paleontological Society</publisher><subject>Adaptation ; Artiodactyla ; bones ; Brazil ; C-13/C-12 ; Camelidae ; Carbon ; Carbon isotopes ; Cenozoic ; chemical composition ; Chordata ; Climate ; Coexistence ; Dental enamel ; Dentin ; Diet ; Enamel ; Endangered & extinct species ; Eutheria ; Extinction ; Foraging ; Foraging behavior ; Fossils ; Geochemistry ; Glacial periods ; Grasses ; Grasslands ; Hemiauchenia paradoxa ; Herbivores ; Hermenegildo Beach ; Humidity ; Ice ages ; Isotope ratios ; Isotopes ; Lama guanicoe ; Lamini ; Mammalia ; Niche overlap ; O-18/O-16 ; Oxygen ; Paleobiology ; Paleontology ; Photosynthesis ; Pleistocene ; Quaternary ; Rio Grande do Sul Brazil ; Ruminantia ; Santa Vitoria Formation ; Sediments ; South America ; Species extinction ; Stable isotopes ; teeth ; Tetrapoda ; Theria ; Touro Passo Creek ; Touro Passo Formation ; Tylopoda ; Vegetation ; Vertebrata ; vertebrate ; Vicugna vicugna</subject><ispartof>Paleobiology, 2022-08, Vol.48 (3), p.513-526</ispartof><rights>The Author(s), 2022. Published by Cambridge University Press on behalf of The Paleontological Society.</rights><rights>Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of The Paleontological Society</rights><rights>GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from GeoScienceWorld @Alexandria, VA @USA @United States. Abstract, Copyright, The Paleontological Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b299t-707d5753abd1b5fc17756b5620ecc8d22e678f154e8527eeb191835b4f22b6d53</citedby><cites>FETCH-LOGICAL-b299t-707d5753abd1b5fc17756b5620ecc8d22e678f154e8527eeb191835b4f22b6d53</cites><orcidid>0000-0002-8890-2249</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0094837322000100/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,780,784,27923,27924,55627</link.rule.ids></links><search><creatorcontrib>Carrasco, Thayara S.</creatorcontrib><creatorcontrib>Scherer, Carolina S.</creatorcontrib><creatorcontrib>Ribeiro, Ana Maria</creatorcontrib><creatorcontrib>Buchmann, Francisco S.</creatorcontrib><title>Paleodiet of Lamini camelids (Mammalia: Artiodactyla) from the Pleistocene of southern Brazil: insights from stable isotope analysis (δ13C, δ18O)</title><title>Paleobiology</title><addtitle>Paleobiology</addtitle><description>Camelids (Camelidae) were a diverse and widely distributed group in South America during the Pleistocene. According to the fossil record, three species inhabited southern Brazil in the recent past: Hemiauchenia paradoxa, Lama guanicoe, and Vicugna vicugna. The analysis of carbon and oxygen stable isotope ratios in bioapatite provides insight into the paleobiology of nonliving animals and the environment they used to inhabit. We applied this tool to investigate the diet of camelids from two geological localities in southern Brazil: Touro Passo and Santa Vitória Formations (H. paradoxa, n = 7; L. guanicoe, n = 6; V. vicugna, n = 4). Carbon stable isotopes from enamel, dentin, and bone indicated that H. paradoxa and L. guanicoe had diets comprising mostly C3 grasses, but the latter showed a broader diet due to one individual with a mixed diet, whereas V. vicugna had a mixed C3–C4 diet. These different foraging behaviors may have minimized interspecific competition and favored niche partitioning and the coexistence of related species. Combined oxygen and carbon isotope data showed a consistent diet according to climate, probably due to the greater availability in glacial periods of cool-season grasses, which mainly use the C3 photosynthetic pathway. Given their adaptations to grazing, the climate amelioration, followed by the loss of grasslands, likely had a great impact on camelid populations, leading to their extinction in southern Brazil. These results, therefore, contribute to the understanding of the dynamics of paleocommunities in this region.</description><subject>Adaptation</subject><subject>Artiodactyla</subject><subject>bones</subject><subject>Brazil</subject><subject>C-13/C-12</subject><subject>Camelidae</subject><subject>Carbon</subject><subject>Carbon isotopes</subject><subject>Cenozoic</subject><subject>chemical composition</subject><subject>Chordata</subject><subject>Climate</subject><subject>Coexistence</subject><subject>Dental enamel</subject><subject>Dentin</subject><subject>Diet</subject><subject>Enamel</subject><subject>Endangered & extinct species</subject><subject>Eutheria</subject><subject>Extinction</subject><subject>Foraging</subject><subject>Foraging behavior</subject><subject>Fossils</subject><subject>Geochemistry</subject><subject>Glacial periods</subject><subject>Grasses</subject><subject>Grasslands</subject><subject>Hemiauchenia paradoxa</subject><subject>Herbivores</subject><subject>Hermenegildo Beach</subject><subject>Humidity</subject><subject>Ice ages</subject><subject>Isotope ratios</subject><subject>Isotopes</subject><subject>Lama guanicoe</subject><subject>Lamini</subject><subject>Mammalia</subject><subject>Niche overlap</subject><subject>O-18/O-16</subject><subject>Oxygen</subject><subject>Paleobiology</subject><subject>Paleontology</subject><subject>Photosynthesis</subject><subject>Pleistocene</subject><subject>Quaternary</subject><subject>Rio Grande do Sul Brazil</subject><subject>Ruminantia</subject><subject>Santa Vitoria Formation</subject><subject>Sediments</subject><subject>South America</subject><subject>Species extinction</subject><subject>Stable isotopes</subject><subject>teeth</subject><subject>Tetrapoda</subject><subject>Theria</subject><subject>Touro Passo Creek</subject><subject>Touro Passo Formation</subject><subject>Tylopoda</subject><subject>Vegetation</subject><subject>Vertebrata</subject><subject>vertebrate</subject><subject>Vicugna 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Editorial</collection><jtitle>Paleobiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Carrasco, Thayara S.</au><au>Scherer, Carolina S.</au><au>Ribeiro, Ana Maria</au><au>Buchmann, Francisco S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Paleodiet of Lamini camelids (Mammalia: Artiodactyla) from the Pleistocene of southern Brazil: insights from stable isotope analysis (δ13C, δ18O)</atitle><jtitle>Paleobiology</jtitle><addtitle>Paleobiology</addtitle><date>2022-08-01</date><risdate>2022</risdate><volume>48</volume><issue>3</issue><spage>513</spage><epage>526</epage><pages>513-526</pages><issn>0094-8373</issn><eissn>1938-5331</eissn><abstract>Camelids (Camelidae) were a diverse and widely distributed group in South America during the Pleistocene. According to the fossil record, three species inhabited southern Brazil in the recent past: Hemiauchenia paradoxa, Lama guanicoe, and Vicugna vicugna. The analysis of carbon and oxygen stable isotope ratios in bioapatite provides insight into the paleobiology of nonliving animals and the environment they used to inhabit. We applied this tool to investigate the diet of camelids from two geological localities in southern Brazil: Touro Passo and Santa Vitória Formations (H. paradoxa, n = 7; L. guanicoe, n = 6; V. vicugna, n = 4). Carbon stable isotopes from enamel, dentin, and bone indicated that H. paradoxa and L. guanicoe had diets comprising mostly C3 grasses, but the latter showed a broader diet due to one individual with a mixed diet, whereas V. vicugna had a mixed C3–C4 diet. These different foraging behaviors may have minimized interspecific competition and favored niche partitioning and the coexistence of related species. Combined oxygen and carbon isotope data showed a consistent diet according to climate, probably due to the greater availability in glacial periods of cool-season grasses, which mainly use the C3 photosynthetic pathway. Given their adaptations to grazing, the climate amelioration, followed by the loss of grasslands, likely had a great impact on camelid populations, leading to their extinction in southern Brazil. These results, therefore, contribute to the understanding of the dynamics of paleocommunities in this region.</abstract><cop>New York, USA</cop><pub>The Paleontological Society</pub><doi>10.1017/pab.2022.10</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-8890-2249</orcidid></addata></record> |
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| subjects | Adaptation Artiodactyla bones Brazil C-13/C-12 Camelidae Carbon Carbon isotopes Cenozoic chemical composition Chordata Climate Coexistence Dental enamel Dentin Diet Enamel Endangered & extinct species Eutheria Extinction Foraging Foraging behavior Fossils Geochemistry Glacial periods Grasses Grasslands Hemiauchenia paradoxa Herbivores Hermenegildo Beach Humidity Ice ages Isotope ratios Isotopes Lama guanicoe Lamini Mammalia Niche overlap O-18/O-16 Oxygen Paleobiology Paleontology Photosynthesis Pleistocene Quaternary Rio Grande do Sul Brazil Ruminantia Santa Vitoria Formation Sediments South America Species extinction Stable isotopes teeth Tetrapoda Theria Touro Passo Creek Touro Passo Formation Tylopoda Vegetation Vertebrata vertebrate Vicugna vicugna |
| title | Paleodiet of Lamini camelids (Mammalia: Artiodactyla) from the Pleistocene of southern Brazil: insights from stable isotope analysis (δ13C, δ18O) |
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