• Corpus ID: 16270216

Measurement of Evolutionary Activity, Teleology, and Life

  title={Measurement of Evolutionary Activity, Teleology, and Life},
  author={Mark A. Bedau},
We consider how to discern whether or not evolution is taking place in an observed system. Evolution will be characterized in terms of a particular macroscopic behavior that emerges from microscopic organismic interaction. We de ne evolutionary activity as the rate at which useful genetic innovations are absorbed into the population. After measuring evolutionary activity in a simple model biosphere, we discuss applications to other systems. We argue that evolutionary activity provides an… 

A Comparison of Evolutionary Activity in Artificial Evolving Systems and in the Biosphere

It is shown that there is an arrow of increasing cumulative evolutionary activity in the biosphere but not in the artificial models of evolution, and quantitative evidence that the artificial evolving systems are qualitatively different from theBiosphere.

Measuring the Dynamics of Artificial Evolution

Results of measuring evolution in a simple ALife system demonstrate the usefulness of a dynamical systems approach in analyzing the dynamics of artificial evolution and provide suggestions for further development.

The road to everywhere : Evolution, complexity and progress in natural and artificial systems

A rich experimental system, inspired by the seminal work of Karl Sims, is implemented, in which virtual creatures can evolve and interact under various conditions in a physically realistic three-dimensional (3D) environment, and this is the first complete reimplementation and extension of Sims' results.

Validation of evolutionary activity metrics for long-term evolutionary dynamics

A series of experiments validating the evolutionary activity statistics developed by Bedau and his colleagues are described, attempting to 'break' the scheme by measuring Class 3 dynamics in an intuitively unlifelike system.

Population dynamics and emerging mental features in AEGIS

An empirical investigation within an artificial world, AEGIS, where a population of animals and plants is evolving, shows that being socially oriented is generally advantageous, while agressive behavior only emerges under specific circumstances.

Emergence of Complex Ecologies in Echo 1 Motivation and Context

Estimates of evolutionary activity measurements can be used to identify the signiicant adaptive evolutionary events in complex systems like ECHO, and are used to study the emergence of ecologies in John Hol-land's ECHO model.

Quantification of Microscopic Events in the Process of Long-Term Evolutionary Dynamics

A new standpoint to further understanding the evotvability of A-life systems is described, that is, quantification of the dependency of system constituents to clarify the occurrence of fundamental events affecting longterm course of evolution.

General Framework for Evolutionary Activity

To help make evolutionary activity statistics easier to use and understand, they are situate in a new and more general formal framework and then shown how this framework applies to earlier work with the statistics.

Evolution of evolvability via adaptation of mutation rates.

Fitness Transmission - A Genealogic Signature of Adaptive Evolution

Fitness transmission is the correlation between the fitness of parents and children, where fitness is evaluated after the number of grandchildren, suitably normalised, and is demonstrated to accurately detect the presence or absence of Darwinian evolution.



Teleological Explanations in Evolutionary Biology

  • F. Ayala
  • Biology, Philosophy
    Philosophy of Science
  • 1970
It is argued that teleological explanations in biology are not only acceptable but indeed indispensable and there are at least three categories of biological phenomena whereteleological explanations are appropriate.

The units of selection.

Cases in which selection acts simultaneously at two levels above the species level, and in the major transitions in evolution, entities that were capable of independent replication before the transition can only replicate as part of a larger whole after it are concerned.

The nature of selection

Abstract A model that unifies all types of selection (chemical, sociological, genetical, and every other kind of selection) may open the way to develop a general “Mathematical Theory of Selection”

The Theory of Evolution

4. How does natural variation affect evolution? What are the sources of genetic variation within populations? Explain how each increases genetic variation. Without natural variation, all organisms

The spandrels of San Marco and the Panglossian paradigm: a critique of the adaptationist programme

  • S. GouldR. Lewontin
  • Biology
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1979
The adaptationist programme is faulted for its failure to distinguish current utility from reasons for origin, and Darwin’s own pluralistic approach to identifying the agents of evolutionary change is supported.

Conceptual issues in evolutionary biology

These essays by leading scientists and philosophers address conceptual issues that arise in the theory and practice of evolutionary biology by offering one essay by two founders of the field and another that questions its main tenets.

The ecology of computation

  • B. Huberman
  • Mathematics
    Digest of Papers. COMPCON Spring 89. Thirty-Fourth IEEE Computer Society International Conference: Intellectual Leverage
  • 1989
The author has developed a perspective on computational ecologies as well as a theory of their behavior which explicitly takes into account incomplete knowledge and delayed information on the part of its agents.

Algorithmic chemistry: A model for functional self-organization

We conjecture that adaptive systems are characterized by a self- referential loop in which combinatorial objects encode functions that act back on these objects. A model for this loop is presented.

Where's the Good in Teleology?

Contemporary analyses of teleological explanation generally attempt to "sanitize" it, usually by trying to assimilate it to some uncontroversial descriptive form of explanation. This trend is