KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Assessing niche conservatism using a multiproxy approach: dietary ecology of extinct and extant spotted hyenas | |
| DeSantis, Larisa R. G.1; Tseng, Zhijie Jack2,3; Liu, Jinyi4; Hurst, Aaron1; Schubert, Blaine W.5,6; Jiangzuo, Qigao4 | |
| 2017-05-01 | |
| 发表期刊 | PALEOBIOLOGY
 |
| 卷号 | 43期号:2页码:286-303 |
| 文章类型 | Article |
| 摘要 | A central premise of bioclimatic envelope modeling is the assumption of niche conservatism. Whereas such assumptions are testable in modern populations, it is unclear whether niche conservatism holds over deeper time spans and over very large geographic ranges. Hyaenids occupied a diversity of ecological niches over time and space, and until the end-Pleistocene they occurred in Europe and most of Asia, with Asian populations of Crocuta suggested as being genetically distinct from their closest living relatives. Further, little is known regarding whether and how the dietary ecology of extinct populations of Crocuta differed from those of their extant African counterparts. Here, we use a multiproxy approach to assess an assumption of conserved dietary ecology in late Pleistocene extant spotted hyenas via finite element analysis, dental microwear texture analysis, and a novel dental macrowear method (i.e., whether teeth are minimally, moderately, or extremely worn, as defined by degree of dentin exposure) proposed here. Results from finite element simulations of the masticatory apparatus of Chinese and African Crocuta demonstrate lower skull stiffness and higher stress in the orbital region of the former when biting with carnassial teeth, suggesting that Chinese Crocuta could not process prey with the same degree of efficiency as extant Crocuta crocuta. Dental microwear texture data further support this interpretation, as Chinese Crocuta have intermediate and indistinguishable complexity values (indicative of hard-object feeding) between the extant African lion (Panthera leo) and extant hyenas (C. crocuta, Hyaena hyaena, and Parahyaena brunnea), being most similar to the omnivorous P. brunnea. The use of dental macrowear to infer dietary behavior may also be possible in extinct taxa, as evinced by dietary correlations between extant African feliforms and dental macrowear assignments. Collectively, this multiproxy analysis suggests that Chinese Crocuta may have exhibited dietary behavior distinct from that of living C. crocuta, and assumptions of niche conservatism may mask significant dietary variation in species broadly distributed in time and space. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1017/pab.2016.45 |
| 关键词[WOS] | FINITE-ELEMENT-ANALYSIS ; CRANIAL FUNCTIONAL-MORPHOLOGY ; MICROWEAR TEXTURE ANALYSIS ; LION PANTHERA-LEO ; DENTAL MICROWEAR ; CROCUTA-CROCUTA ; PREY PREFERENCES ; LARGE CARNIVORES ; TOOTH MICROWEAR ; SMILODON-FATALIS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(NSFC40972013) ; Vanderbilt University ; National Science Foundation (NSF)(EAR1053839) ; NSF(DEB1257572) ; American Museum of Natural History Frick Postdoctoral Fellowship ; Don Sundquist Center of Excellence in Paleontology at East Tennessee State University |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Evolutionary Biology ; Paleontology |
| WOS类目 | Biodiversity Conservation ; Ecology ; Evolutionary Biology ; Paleontology |
| WOS记录号 | WOS:000399414600008 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/7443 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 作者单位 | 1.Vanderbilt Univ, Dept Earth & Environm Sci, Nashville, TN 37240 USA 2.Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA 3.SUNY Buffalo, Dept Pathol & Anat Sci, Buffalo, NY USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 5.East Tennessee State Univ, Don Sundquist Ctr Excellence Paleontol, Johnson City, TN 37614 USA 6.East Tennessee State Univ, Dept Geosci, Johnson City, TN 37614 USA |
| 推荐引用方式 GB/T 7714 | DeSantis, Larisa R. G.,Tseng, Zhijie Jack,Liu, Jinyi,et al. Assessing niche conservatism using a multiproxy approach: dietary ecology of extinct and extant spotted hyenas[J]. PALEOBIOLOGY,2017,43(2):286-303. |
| APA | DeSantis, Larisa R. G.,Tseng, Zhijie Jack,Liu, Jinyi,Hurst, Aaron,Schubert, Blaine W.,&Jiangzuo, Qigao.(2017).Assessing niche conservatism using a multiproxy approach: dietary ecology of extinct and extant spotted hyenas.PALEOBIOLOGY,43(2),286-303. |
| MLA | DeSantis, Larisa R. G.,et al."Assessing niche conservatism using a multiproxy approach: dietary ecology of extinct and extant spotted hyenas".PALEOBIOLOGY 43.2(2017):286-303. |
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