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SUMMARY:The non-gradual nature of adaptive radiation in cichlid fishes of 
 Lake Tanganyika - Walter Salzburger - Zoological Institute\, University of
  Basel\, Switzerland  
DTSTART:20250521T150000Z
DTEND:20250521T160000Z
UID:TALK232513@talks.cam.ac.uk
CONTACT:90994
DESCRIPTION:Adaptive radiation is the likely source of much of the ecologi
 cal and morphological diversity of life on Earth. Owing to their spectacul
 ar taxonomic\, phenotypic\, ecological and behavioral diversity and propen
 sity for explosive speciation\, the assemblages of cichlid fishes in the A
 frican Great Lakes Victoria\, Malawi and Tanganyika are prime role models 
 for this evolutionary process. The cichlid fishes of Lake Tanganyika const
 itute the morphologically\, ecologically and behaviorally most diverse cic
 hlid species flocks. Our in-depth examination of nearly all its approximat
 ely 250 cichlid species revealed that this spectacular adaptive radiation 
 proceeded in a non-gradual manner\, in the form of three consecutive and t
 rait-specific pulses of accelerated phenotypic evolution. Three trait comp
 lexes – body shape\, mouth morphology\, and the lower pharyngeal jaw bon
 e – are highly diverse and show a particularly strong association with t
 he environment. In addition\, there is evidence that diversification with 
 respect to behavior contributed to the cichlid adaptive radiation in Lake 
 Tanganyika.
LOCATION:Department of Biochemistry\, Sanger Building\, Jean Thomas Lectur
 e Theatre
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