NCEAS Project 10081

The effects of lineage age on the species richness of regional assemblages

  • Patrick R. Stephens

ActivityDatesFurther Information
Postdoctoral Fellow4th October 2005—28th September 2008Participant List  

Like area, time is a factor that must constrain diversity at some level, yet very little is known about how time and species richness are related in most groups. It was widely accepted during the first half of the 20th century that time constrained diversity in many groups, though there was little direct evidence for this. Ironically, interest in the relationship waned just before the phylogenetic tools necessary to investigate it directly it were developed. I propose to investigate the relationship between the relative age and species richness of regional assemblages in a wide variety of organisms.

TypeProducts of NCEAS Research
Data Set Stephens, Patrick R. 2006. Molecular sequence data for emydid turtles. (Abstract) (Online version)
Journal Article Stephens, Patrick R.; Wiens, John. 2008. Testing for evolutionary trade-offs in a phylogenetic context: ecological diversification and evolution of locomotor performance in emydid turtles . Journal of Evolutionary Biology. Vol: 21(1). Pages 77-87(11).