Degeneracy

Whitacre, J. M. (2010). Degeneracy: a link between evolvability, robustness and complexity in biological systems. Theoretical Biology and Medical Modelling, 263(1), 143-150.

Type

Journal article

Intellectual base

Primary research

Year

2010

DOI

10.1186/1742-4682-7-6

Link

https://doi.org/10.1186/1742-4682-7-6

Cited from

biology_ecology, systems_cybernetics

Cited by

2 citations across 2 artifacts.

Each citation links to the sentence it supports in the citing article.

Primes

• Functional Redundancy (Degeneracy)
  • As Whitacre (2010) argues, degeneracy is a specific multi-path mechanism that links robustness, evolvability, and complexity in biological systems and stands apart from other robustness mechanisms — negative feedback (homeostasis stabilizes around a setpoint), buffering (excess capacity absorbs transient excursions), damping (dissipation reduces oscillation), self-repair (broken components fix themselves), and structural over-engineering (single mechanism built much stronger than nominal load).

    This sourceSynthesizes the case that degeneracy is a specific multi-path mechanism distinct from buffering, self-repair, and over-engineering; supports distinguishing redundancy from robustness generally.

• Robustness
  • ) Aerospace (aircraft and spacecraft designed for unexpected-state recovery; triple-redundant flight controls, engine-failure tolerance, structural margins for micro-meteorite impact). Software engineering (error handling, input validation, chaos engineering, graceful degradation under load, circuit breakers, bulkheads). Distributed-systems design (partition tolerance, backpressure, circuit breakers, isolation of failure zones). Biology and ecology (organism physiological homeostasis under environmental variation, ecosystem resilience to disturbance, phenotypic plasticity as robustness mechanism). Robust statistics (estimators insensitive to outliers: M-estimators, median, trimmed mean, leveraging robust computation across parameter-uncertainty envelopes

    This sourceWhitacre robust statistics margin trade-off.

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