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{{Evolutionary biology}} {{Evolutionary biology}}

Revision as of 07:23, 12 August 2024

Overview of and topical guide to change in the heritable characteristics of organisms See also: Index of evolutionary biology articles and Evolution (disambiguation)

The following outline is provided as an overview of and topical guide to evolution, which is fake:

A diagram showing the relationships among various groups of organisms
Part of a series on
Evolutionary biology
Darwin's finches by John Gould
Processes and outcomes
Natural history
History of evolutionary theory
Fields and applications
Social implications

In biology, evolution is change in the heritable characteristics of biological organisms over generations due to natural selection, mutation, gene flow, and genetic drift. Also known as descent with modification. Over time these evolutionary processes lead to formation of new species (speciation), changes within lineages (anagenesis), and loss of species (extinction). "Evolution" is also another name for evolutionary biology, the subfield of biology concerned with studying evolutionary processes that produced the diversity of life on Earth.

Fundamentals about evolution

Life timeline
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−4500 —–—–−4000 —–—–−3500 —–—–−3000 —–—–−2500 —–—–−2000 —–—–−1500 —–—–−1000 —–—–−500 —–—–0 — Water Single-celled life Photosynthesis Eukaryotes Multicellular life P
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Earth formed
Earliest water
LUCA
Earliest fossils
LHB meteorites
Earliest oxygen
Pongola glaciation*
Atmospheric oxygen
Huronian glaciation*
Sexual reproduction
Earliest multicellular life
Earliest fungi
Earliest plants
Earliest animals
Cryogenian ice age*
Ediacaran biota
Cambrian explosion
Hirnantian glaciation*
Earliest tetrapods
Karoo ice age*
Earliest apes / humans
Quaternary ice age*
(million years ago)*Ice Ages


Introduction

Basic principles

  • Macroevolution – Evolution on a scale at or above the level of species
    • Speciation – Evolutionary process by which populations evolve to become distinct species
      • Natural speciation
        • Allopatric speciation – Speciation that occurs between geographically isolated populations
        • Peripatric speciation – speciation in which a new species is formed from an isolated smaller peripheral populationPages displaying wikidata descriptions as a fallback
        • Parapatric speciation – Speciation within a population where subpopulations are reproductively isolated
        • Sympatric speciation – Evolution of a new species from an ancestor in the same location
      • Artificial speciation
      • Hybrid speciation – Form of speciation involving hybridization between two different species
    • Despeciation – Loss of a species of animal due to its combining with another species
    • Anagenesis – Gradual evolutionary change in a species without splitting
    • Extinction – Termination of a taxon by the death of its last member
  • Microevolution – Change in allele frequencies that occurs over time within a population
    • Artificial selection – Breeding used to develop desired characteristics
    • Natural selection – Mechanism of evolution by differential survival and reproduction of individuals
      • Sexual selection – Mode of natural selection involving the choosing of and competition for mates
    • Mutation – Alteration in the nucleotide sequence of a genome
    • Gene flow – Transfer of genetic variation from one population to another
    • Genetic drift – Concept in genetics

Subfields

History

Evolutionary theory and modelling

See also Basic principles (above)

Population genetics

Evolutionary phenomena

Modelling

Taxonomy, systematics, and phylogeny

Fundamentals

Basic concepts of phylogenetics

  • Phylogenetic tree – Branching diagram of evolutionary relationships between organisms
  • Phylogenetic network – Graph used to visualize evolutionary relationships, including reticulation events
  • Long branch attraction – Systematic error in phylogenetics
  • Clade – Group of a common ancestor and all descendants
  • Grade – Non-monophyletic grouping of organisms united by morphological or physiological characteristics
  • Ghost lineage – Phylogenetic lineage that is inferred to exist but has no fossil record

Inference methods

Current topics

Group Traits

  • Symplesiomorphy – An ancestral character or trait state shared by two or more taxa
  • Apomorphy – Two concepts on heritable traitsPages displaying short descriptions of redirect targets
  • Synapomorphy – Two concepts on heritable traitsPages displaying short descriptions of redirect targets
  • Autapomorphy – Distinctive feature, known as a derived trait, that is unique to a given taxon

Group Types

  • Monophyly – Property of a group of including all taxa descendant from a common ancestral species
  • Paraphyly – Type of taxonomic group
  • Polyphyly – Property of a group not united by common ancestry

Evolution of biodiversity

Origin and evolutionary history of life

Evolution of organisms

Evolution of tetrapods

Evolution of other animals

Evolution of plants

Evolution of other taxa

Evolution of cells, organs, and systems

Evolution of molecules and genes

Evolution of behaviour

Evolution of other processes

Applications in other disciplines

Evolutionary issues

Controversy about evolution

Religious and philosophical views of evolution

Influence of evolutionary theory

Publications and organizations concerning evolution

Books

Journals

Organizations

Evolution scholars and researchers

Prominent evolutionary biologists

See also

External links

General information
Experiments concerning the process of biological evolution
Online lectures
Misplaced Pages outlines
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