DEPARTMENT OF MATHEMATICAL & STATISTICAL SCIENCES
UNIVERSITY OF ALBERTA
  

MATHEMATICAL BIOLOGY SEMINAR
 

MONDAY, OCTOBER 28, 2002

3:00 PM

CAB 657
 

Dr. T. Roslin

 

Metapopulation Research Group

University of Helsinki

and

Department of Biological Sciences
University of Alberta

 

Five ways to measure insect dispersal

 

Dispersal among local populations is a key process in all fields of ecology, from population genetics and single-species dynamics to local community composition and long-term evolutionary change Yet, mathematical models including dispersal are often notoriously hard to parameterise. In this talk, I will review a few empirical methods that others and I have applied to quantify dispersal in insects. Drawing on specific case studies, I will compare dispersal measures based on directly observing moving individuals to indirect measures based on patterns assumed to result from dispersal processes. I will argue that pattern-based approaches are often more economic and sufficiently accurate, and that the major obstacle to obtain accurate dispersal estimates is our general lack of imagination.