emergent properties

https://doi.org/10.1351/goldbook.14630
New properties emerging with upward steps in hierarchical systems, such as ecological communities or ecosystems, that cannot be predicted solely from our limited understanding of the system’s parts or components.
Note: Such properties arise during the self-organization of complex systems and are the product of the evolution of these systems.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 875 [Terms] [Paper]