Nutrient-dependent growth underpinned the Ediacaran transition to large body size
| Autor: | Simon Conway Morris, Jennifer F. Hoyal Cuthill |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Frond Ecology Fossils sub-01 sub-04 Biogeochemistry Body size Biology Rangeomorph 010502 geochemistry & geophysics biology.organism_classification Biological Evolution Invertebrates 01 natural sciences Diet 03 medical and health sciences 030104 developmental biology Nutrient Animals Body Size Glacial period Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Nature Ecology & Evolution. 1:1201-1204 |
| ISSN: | 2397-334X |
| DOI: | 10.1038/s41559-017-0222-7 |
| Popis: | Macroscale rangeomorph fossils, with characteristic branching fronds, appear (571 Myr ago) after the Gaskiers glaciation (580 Myr ago). However, biological mechanisms of size growth and potential connections to ocean geochemistry were untested. Using micro-computerized tomography and photographic measurements, alongside mathematical and computer models, we demonstrate that growth of rangeomorph branch internodes declined as their relative surface area decreased. This suggests that frond size and shape were directly responsive to nutrient uptake. |
| Databáze: | OpenAIRE |
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