Theory of communication

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13 Terms

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Evolution

Any change in the relative frequency of inheritable units in a population over a course of generation

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Mutation

A change in the DNA sequence of an organism that can lead to variations in traits and may be passed on to future generations.

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Three conditions of natural selection

  1. Diversity — Organism of a given population have different traits from one another. 

  2. Heredity — These traits (to some degree) originate from the organisms’ genes, and so they can be passed on. 

  3. Differential reproductive success — reproductive success is not the same for all organisms. Those who have certain traits produce more offspring than the organisms who lack these traits

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Differential reproductive success

combined measure of organism’s ability to survive and produce offsprings. It is strictly connected with resource limitation 

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Adaptation

a term which denotes any trait that increases fitness (and by this increases a reproductive success of an organism)

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Fitness

measures gow efficiently an individual passes on its genes, both directly as well as via its relatives

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Kin selection

a form of natural selection that favors altruistic behaviors towards relatives, enhancing their reproductive success.

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Alarm calls

vocalizations made by animals to warn others of potential danger, often at a cost to the caller's own safety.

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Universal Darwinism

the application of Darwinian principles to various fields beyond biology, suggesting that natural selection can explain a wide range of phenomena.

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Lamarckism

a theory of evolution that posits that organisms can pass on traits acquired during their lifetime to their offspring, contrasting with Darwinian evolution. It’s bullshit

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Saltationism

a theory of evolution proposing that species evolve in rapid bursts rather than gradually over time, suggesting significant changes can occur in a short period. (not really)

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Macromutation

an example of saltationism. It entails a major change on phenotype but is mostly eliminated by natural selection

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