Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13383 |
The importance of neutral over niche processes in structuring Ediacaran early animal communities | |
Mitchell, Emily G.1; Harris, Simon2; Kenchington, Charlotte G.1; Vixseboxse, Philip3; Roberts, Lucy4; Clark, Catherine1; Dennis, Alexandra1; Liu, Alexander G.1; Wilby, Philip R.2,5 | |
2019-09-12 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | England |
英文摘要 | The relative influence of niche vs. neutral processes in ecosystem dynamics is an on-going debate, but the extent to which they structured the earliest animal communities is unknown. Some of the oldest known metazoan-dominated paleocommunities occur in Ediacaran age (similar to 565 million years old) strata in Newfoundland, Canada and Charnwood Forest, UK. These comprise large and diverse populations of sessile organisms that are amenable to spatial point process analyses, enabling inference of the most likely underlying niche or neutral processes governing community structure. We mapped seven Ediacaran paleocommunities using LiDAR, photogrammetry and a laser line probe. We found that neutral processes dominate these paleocommunities, with niche processes exerting limited influence, in contrast with the niche-dominated dynamics of modern marine ecosystems. The dominance of neutral processes suggests that early metazoan diversification may not have been driven by systematic adaptations to the local environment, but instead may have resulted from stochastic demographic differences. |
英文关键词 | Ecology Ediacaran neutral theory paleoecology paleontology spatial point process analysis |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000486194100001 |
WOS关键词 | POINT PATTERN-ANALYSIS ; HABITAT ASSOCIATIONS ; SPATIAL-PATTERNS ; MISTAKEN POINT ; DIVERSITY ; ASSEMBLAGE ; SCALE ; HETEROGENEITY ; GEOCHRONOLOGY ; DISTRIBUTIONS |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
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/187014 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Cambridge, Dept Earth Sci, Downing St, Cambridge CB2 3EQ, England; 2.British Geol Survey, Nicker Hill, Nottingham NG12 5GG, England; 3.Univ Bristol, Sch Earth Sci, Wills Mem Bldg,Queens Rd, Bristol BS8 1RJ, Avon, England; 4.Univ Cambridge, Dept Zool, Downing St, Cambridge CB2 3EJ, England; 5.Univ Leicester, 5Chool Geog Geol & Environm, Univ Rd, Leicester LE1 7RH, Leics, England |
推荐引用方式 GB/T 7714 | Mitchell, Emily G.,Harris, Simon,Kenchington, Charlotte G.,et al. The importance of neutral over niche processes in structuring Ediacaran early animal communities[J]. ECOLOGY LETTERS,2019. |
APA | Mitchell, Emily G..,Harris, Simon.,Kenchington, Charlotte G..,Vixseboxse, Philip.,Roberts, Lucy.,...&Wilby, Philip R..(2019).The importance of neutral over niche processes in structuring Ediacaran early animal communities.ECOLOGY LETTERS. |
MLA | Mitchell, Emily G.,et al."The importance of neutral over niche processes in structuring Ediacaran early animal communities".ECOLOGY LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
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