2013 Fiscal Year Final Research Report
Exploring unbiased assessment of disparity based on morphospace occupation pattern
| Project/Area Number |
23540549
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Shizuoka University |
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Principal Investigator |
UBUKATA Takao 静岡大学, 理学(系)研究科(研究院), 准教授 (00293598)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 異質性 / 形態空間 / 形態測定学 / 理論形態学 |
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| Research Abstract |
Disparity, a morphological aspect of diversity, is commonly measured based on the amount of morphospace occupied by a taxon of interest. However, assessment of disparity is readily biased by a particular pattern of morphospace occupation such as spurious correlation between morphological parameters and skewed distribution of observed forms. This study focused on the potential biases that arise as a consequence of adopting inappropriate analytical options. Developing an appropriate measure of disparity is crucial for exploration of disparity dynamics across the Phanerozoic.
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