A new approach for investigating spatial relationships of ichnofossils: a case study of Ediacaran-Cambrian animal traces
文献类型：期刊论文
| 作者 | Mitchell, Emily G.4; Evans, Scott D.3; Chen, Zhe1,2 ; Xiao, Shuhai3; Chen, Zhe（陈哲）
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| 刊名 | PALEOBIOLOGY
 |
| 出版日期 | 2022-05-19 |
| 页码 | 19 |
| ISSN号 | 0094-8373 |
| DOI | 10.1017/pab.2022.16 |
| 通讯作者 | Mitchell, Emily G.(ek338@cam.ac.uk) |
| 英文摘要 | Trace fossils record foraging behaviors, the search for resources in patchy environments, of animals in the rock record. Quantification of the strength, density, and nature of foraging behaviors enables the investigation of how these may have changed through time. Here, we present a novel approach to explore such patterns using spatial point process analyses to quantify the scale and strength of ichnofossil spatial distributions on horizontal bedding planes. To demonstrate the utility of this approach, we use two samples from the terminal Ediacaran Shibantan Member in South China (between 551 and 543 Ma) and the early Cambrian Nagaur Sandstone in northwestern India (between 539 and 509 Ma). We find that ichnotaxa on both surfaces exhibited significant nonhomogeneous lateral patterns, with distinct levels of heterogeneity exhibited by different types of trace fossils. In the Shibantan, two ichnotaxa show evidence for mutual positive aggregation over a shared resource, suggesting the ability to focus on optimal resource areas. Trace fossils from the Nagaur Sandstone exhibit more sophisticated foraging behavior, with greater niche differentiation. Critically, mark correlation functions highlight significant spatial autocorrelation of trace fossil orientations, demonstrating the greater ability of these Cambrian tracemakers to focus on optimal patches. Despite potential limitations, these analyses hint at changes in the development and optimization of foraging at the Ediacaran/Cambrian transition and highlight the potential of spatial point process analysis to tease apart subtle differences in behavior in the trace fossil record. |
| WOS关键词 | FLIGHT SEARCH PATTERNS ; YANGTZE GORGES AREA ; MICROBIAL MATS ; LEVY FLIGHT ; FORAGING PATTERNS ; HERITAGE SITE ; FOSSIL ; HETEROGENEITY ; INFORMATION ; INSIGHTS |
| 资助项目 | UKRI grant[NE/S014756/1] ; Agouron Institute Geobiology fellowship ; National Science Foundation[EAR-2021207] ; National Natural Science Foundation of China[41921002] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Evolutionary Biology ; Paleontology |
| 语种 | 英语 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| WOS记录号 | WOS:000797718400001 |
| 资助机构 | UKRI grant ; Agouron Institute Geobiology fellowship ; National Science Foundation ; National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/40825]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Mitchell, Emily G. |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA 4.Univ Cambridge, Dept Zool, Cambridge CB2 3EJ, England |
| 推荐引用方式 GB/T 7714 | Mitchell, Emily G.,Evans, Scott D.,Chen, Zhe,et al. A new approach for investigating spatial relationships of ichnofossils: a case study of Ediacaran-Cambrian animal traces[J]. PALEOBIOLOGY,2022:19. |
| APA | Mitchell, Emily G.,Evans, Scott D.,Chen, Zhe,Xiao, Shuhai,&Chen, Zhe.(2022).A new approach for investigating spatial relationships of ichnofossils: a case study of Ediacaran-Cambrian animal traces.PALEOBIOLOGY,19. |
| MLA | Mitchell, Emily G.,et al."A new approach for investigating spatial relationships of ichnofossils: a case study of Ediacaran-Cambrian animal traces".PALEOBIOLOGY (2022):19. |
入库方式： OAI收割
来源：南京地质古生物研究所
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