api: YAML JSON TOON Database
version: 1.0.0
format: yaml
dataset:
  id: 2790
  slug: evolution-mechanisms
  title: Mechanisms of Evolution
  description: Processes that drive evolutionary change.
  summary: "The processes that change the genetic makeup of populations: natural selection, mutation, genetic drift, gene flow and sexual selection, with the bottleneck and founder effects, speciation, adaptive radiation, convergent evolution, coevolution, artificial selection, punctuated equilibrium and non-random mating."
  use_when:
    - You need to distinguish processes that change allele frequencies from patterns of evolution.
    - You are explaining how populations adapt or diverge.
  caveats:
    - Some entries are processes that change allele frequencies (drift, selection) and others are patterns or outcomes (convergent evolution, adaptive radiation).
    - Evolution has no goal; adaptation is a result of selection in particular environments.
  related:
    - genetics-fundamentals
    - taxonomy-ranks
    - ecology-concepts
  entry_count: 14
  fields:
    - section: data
      field: mechanism
      type: string
      example: Natural Selection
    - section: data
      field: description
      type: string
      example: Differential survival and reproduction due to h…
  category: Biology
  category_slug: biology
  tags: biology,evolution,genetics
  view_count: 38
  created_at: 1793403093
  updated_at: 1793403093
data:
  - mechanism: Natural Selection
    description: Differential survival and reproduction due to heritable traits.
  - mechanism: Mutation
    description: Changes in DNA sequence that introduce new variation.
  - mechanism: Genetic Drift
    description: Random changes in allele frequencies in small populations.
  - mechanism: Gene Flow
    description: Transfer of alleles between populations.
  - mechanism: Sexual Selection
    description: Selection based on success in attracting mates.
  - mechanism: Bottleneck Effect
    description: A sharp reduction in population size that leaves a smaller, less diverse gene pool.
  - mechanism: Founder Effect
    description: Reduced genetic variation when a small group establishes a new population.
  - mechanism: Non-Random Mating
    description: Choosing mates by traits or proximity, which changes genotype frequencies without changing allele frequencies directly.
  - mechanism: Artificial Selection
    description: Humans choosing which individuals reproduce, as in crops and domestic animals.
  - mechanism: Speciation
    description: Formation of new species when populations become reproductively isolated.
  - mechanism: Adaptive Radiation
    description: Rapid diversification of a lineage into many forms that occupy different niches.
  - mechanism: Convergent Evolution
    description: Unrelated lineages evolving similar traits under similar selective pressures.
  - mechanism: Coevolution
    description: Reciprocal evolutionary change in interacting species, such as flowers and their pollinators.
  - mechanism: Punctuated Equilibrium
    description: A pattern in which species remain stable for long periods and change rapidly in short intervals.