🔬 Discovery

Adaptive radiation of cichlids in the African Great Lakes

Radiación adaptativa de los cíclidos de los grandes lagos africanos

Date
1972 · confidence medium
Place
Lake Malawi, Malawi
Credited to
Geoffrey Fryer and T. D. Iles
Field
Life & health

What was discovered

Fryer and Iles's book gathered evidence of hundreds of cichlid species in lakes Malawi, Victoria and Tanganyika descended from a few ancestors. It is the largest known vertebrate radiation in a lake.

The key work is The Cichlid Fishes of the Great Lakes of Africa (1972); the radiation was established by work from the 1950s on. It is placed in Malawi as the most diverse lake, with some 800 species; figures vary between authors.

What it led to

  • a model of rapid speciation and sexual selection
  • genomic studies of cichlid radiation
  • alarm over biodiversity loss after the introduction of Nile perch into Victoria

Links

Sources✓ verified 2026-11-04