Loading…
To return to the Midwest Fish & Wildlife Conference website, go to http://www.midwestfw.org/ The following schedule and room names are subject to change (as of February 1, 2017). Please check back for updates. 

Presenters: 
Presenters for technical presentations are either the primary author (the first name listed in the abstract), or are indicated with an asterisk next to their name. 

Please note:
 the conference schedule is hosted by Sched.org which allows you to search within the schedule, and filter the schedule to show sessions only occurring on a certain date or within a track. You can also build your own schedule by creating a free account with Sched.org by selecting "SIGN UP" in the top right corner. 
Tuesday, February 7 • 6:00pm - 9:00pm
Poster Display. Population Structure Analysis of Western Painted Turtles

Sign up or log in to save this to your schedule and see who's attending!

AUTHORS: Charrissa Zuerlein, UNL Student; Larkin Powell, Director of Great Plains Cooperative Ecosystems Study Unit


ABSTRACT: Population structure, specifically the age, size and sex composition, of Western painted turtles is important for the survival of the species.  As a species with temperature-dependent sex determination (TSD), the sex ratios of new clutches are affected by climate, and this could cause problems for the species as climate changes occur. I studied the fluctuations in population structure of a single population using data collected for more than ten years.  This population is located near Cedar Point Biological Station in Ogallala, Nebraska.  Every summer turtles are caught using floating basking traps and hoop nets.  These turtles were either identified from previous markings or marked, and then measured for size, weight and approximate age.  We show evidence of changes in the sex ratio that occurred following a severe drought. And we show variation in the size structure of the population that suggests recent increases in productivity, as more smaller size classes are now present in the population.  The information from this unique population may be informative to how species are affected by changes in climate.  

Tuesday February 7, 2017 6:00pm - 9:00pm
Lancaster Ballroom

Attendees (3)