BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Species-level morphological changes on geological time scales: ch
 eilostome bryozoans as a study system - Professor Lee Hsiang Liow\, Univer
 sity of Oslo
DTSTART:20241022T120000Z
DTEND:20241022T130000Z
UID:TALK223276@talks.cam.ac.uk
CONTACT:Henry North
DESCRIPTION:Evolutionary trait models such as random walks and those captu
 ring evolutionary optima (Ornstein-Uhlenbeck models) are often applied to 
 paleontological time series\, to identify the mode and quantify the tempo 
 of long-term trait evolution in species-lineages. Using a unique model sys
 tem of New Zealand cheilostome bryozoans\, I fit such models\, but also ex
 amine trait-fitness relationships by using preserved traits that reflect f
 itness components. These include partial mortality and mean fecundity esti
 mated from fossil populations.  Although the story I present is complex a
 nd time-varying\, the ecological and evolutionary processes inferred on s
 horter timescales are not inconsistent with macroevolutionary patterns obs
 erved geological timescales.
LOCATION:Part II Lecture Theatre\, Department of Zoology
END:VEVENT
END:VCALENDAR