Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1804642115 |
Multiproxy evidence for leaf-browsing and closed habitats in extinct proboscideans (Mammalia, Proboscidea) from Central Chile | |
Gonzalez-Guarda, Erwin1,2,3; Petermann-Pichincura, Alia1,4; Tornero, Carlos1,5; Domingo, Laura2,6; Agusti, Jordi1,5,7; Pino, Mario4; Abarzua, Ana M.4; Capriles, Jose M.8; Villavicencio, Natalia A.9; Labarca, Rafael4; Tolorza, Violeta4; Sevilla, Paloma2; Rivals, Florent1,5,7 | |
2018-09-11 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:37页码:9258-9263 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; Chile; USA |
英文摘要 | Proboscideans are so-called ecosystem engineers and are considered key players in hypotheses about Late Pleistocene megafaunal extinctions. However, knowledge about the autoecology and chronology of the proboscideans in South America is still open to debate and raises controversial views. Here, we used a range of multiproxy approaches and new radiocarbon datings to study the autoecology of Chilean gomphotheres, the only group of proboscideans to reach South America during the Great American Biotic Interchange (similar to 3.1 to 2.7 million years before present). As part of this study, we analyzed stable isotopes, dental microwear, and dental calculus microfossils on gomphothere molars from 30 Late Pleistocene sites (31 degrees to 42 degrees S). These proxies provided different scales of temporal resolution, which were then combined to assess the dietary and habitat patterns of these proboscideans. The multiproxy study suggests that most foraging took place in relatively closed environments. In Central Chile, there is a positive correlation between lower delta C-13 values and an increasing consumption of arboreal/scrub elements. Analyses of dental microwear and calculus microfossils have verified these leaf-browsing feeding habits. From a comparative perspective, the dietary pattern of South American gomphotheres appears to be constrained more by resource availability than by the potential dietary range of the individual taxa. This multiproxy study is aimed at increasing knowledge of the life history of gomphotheres and thus follows an issue considered one of the greatest challenges for paleontology in South America, recently pointed out by the need to thoroughly understand the role of ecological engineers before making predictions about the consequences of ecosystem defaunation. |
英文关键词 | stable isotopes dental calculus dental microwear |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000444257200066 |
WOS关键词 | DIETARY RECONSTRUCTION ; ISOTOPIC COMPOSITION ; EARLY PLEISTOCENE ; FEEDING ECOLOGY ; STABLE-ISOTOPES ; EARLY HOLOCENE ; CARBON ; MEGAFAUNA ; NITROGEN ; NORTH |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204985 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Inst Catala Paleoecol Humana & Evolucio Social, Biomol Lab, Tarragona 43007, Spain; 2.Univ Complutense Madrid, Fac Ciencias Geol, Dept Geodinam Estratig & Paleontol, E-28040 Madrid, Spain; 3.Gest Ambiental SA, Area Arqueol, Santiago 7550000, Chile; 4.Univ Austral Chile, Fac Ciencias, Inst Ciencias Tierra, Valdivia 5090000, Chile; 5.Univ Rovira & Virgili, Area Prehist, Tarragona 43002, Spain; 6.Univ Calif Santa Cruz, Earth & Planetary Sci Dept, Santa Cruz, CA 95064 USA; 7.Inst Catalana Recerca & Estudis Avancats, Barcelona 08010, Spain; 8.Penn State Univ, Dept Anthropol, University Pk, PA 16802 USA; 9.Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Ecol, Santiago 8320000, Chile |
推荐引用方式 GB/T 7714 | Gonzalez-Guarda, Erwin,Petermann-Pichincura, Alia,Tornero, Carlos,et al. Multiproxy evidence for leaf-browsing and closed habitats in extinct proboscideans (Mammalia, Proboscidea) from Central Chile[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(37):9258-9263. |
APA | Gonzalez-Guarda, Erwin.,Petermann-Pichincura, Alia.,Tornero, Carlos.,Domingo, Laura.,Agusti, Jordi.,...&Rivals, Florent.(2018).Multiproxy evidence for leaf-browsing and closed habitats in extinct proboscideans (Mammalia, Proboscidea) from Central Chile.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(37),9258-9263. |
MLA | Gonzalez-Guarda, Erwin,et al."Multiproxy evidence for leaf-browsing and closed habitats in extinct proboscideans (Mammalia, Proboscidea) from Central Chile".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.37(2018):9258-9263. |
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