speciation

Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within lineages. Charles Darwin was the first to describe the role of natural selection in speciation in his 1859 book On the Origin of Species. He also identified sexual selection as a likely mechanism, but found it problematic.

AI overview

Speciation is the evolutionary process where populations gradually change over time until they become distinct species—a concept that Charles Darwin first explained through natural selection in his 1859 book *On the Origin of Species*. Understanding speciation matters because it explains how Earth's enormous diversity of life forms originated and continues to develop, helping us comprehend the relationships between all living organisms.

AI-generated from the Wikipedia summary — may contain errors.

Research

41,486 papers

Chromium speciation in foodstuffs: A review.ReviewFood chemistry · 2018Hamilton EM, Young SD, Bailey EH et al.DOI: 10.1016/j.foodchem.2018.01.016
Speciation of heavy metals in soils and their immobilization at micro-scale interfaces among diverse soil components.ReviewThe Science of the total environment · 2022Li Q, Wang Y, Li Y et al.DOI: 10.1016/j.scitotenv.2022.153862
Non-chromatographic Speciation of As by HG Technique-Analysis of Samples with Different Matrices.ReviewMolecules (Basel, Switzerland) · 2020Welna M, Szymczycha-Madeja A, Pohl PDOI: 10.3390/molecules25214944
Imbalanced speciation pulses sustain the radiation of mammals.Science (New York, N.Y.) · 2024Quintero I, Lartillot N, Morlon HDOI: 10.1126/science.adj2793
Coevolution with hosts underpins speciation in brood-parasitic cuckoos.Science (New York, N.Y.) · 2024Langmore NE, Grealy A, Noh HJ et al.DOI: 10.1126/science.adj3210
Sympatric speciation in parasites--what is sympatry?ReviewTrends in parasitology · 2003McCoy KDDOI: 10.1016/s1471-4922(03)00194-6
Platinum speciation used for elucidating activation or inhibition of Pt-containing anti-cancer drugs.ReviewJournal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2010Michalke BDOI: 10.1016/j.jtemb.2010.01.006
Ions Speciation at the Water-Air Interface.Journal of the American Chemical Society · 2023Seki T, Yu CC, Chiang KY et al.DOI: 10.1021/jacs.3c00517

via PubMed

Wikidata facts

Show 1 more fact

Commons category: Speciation

Sources (2)

via Wikidata · CC0

~33 min read

Article

26 sections

Contents

Historical background
Darwin's dilemma: why do species exist?
Effect of sexual reproduction on species formation
Modes
Allopatric
Peripatric
Parapatric
Sympatric
Methods of selection
Reinforcement
Ecological
Sexual selection
Artificial speciation
Genetics
Species barriers
Accumulation of species barriers
Speciation via polyploidy
Hybrid speciation
Gene transposition
Rates
Punctuated evolution
See also
References
Bibliography
Further reading
External links

There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Whether genetic drift is a minor or major contributor to speciation is the subject of much ongoing discussion.