Author: Marjohn Y Baludo,  PhD student (University of Konstanz)

Designation: 

Description:
Bosmina is a classic example of cyclomorphosis caused by, for instance, seasonal changes in traits such as antennulae and mucro lengths. While these changes have been examined in many different lakes in individual study years, there are hardly any studies which examine interannual variability in trait dynamics and their response to environmental changes. Here, we study changes in trait dynamics of Bosmina species during three decades of oligotrophication and a recent invasion of sticklebacks in peri-alpine Lake Constance. We show that Bosmina species have large trait changes partially during oligotrophication and rapidly with stickleback invasion. With the invasion of the sticklebacks, there seems to be a rapid species turnover within Bosmina species which results to trait changes. However, it is still unclear to which extent these trait changes result from Bosmina species change or selection on traits.

Category: Scientific Program Abstract > Special Sessions > CS30 Zooplankton ecology and physiology