Title

Punctured Planarians and Alarm Cues for Conspecifics

Faculty Mentor(s)

Dr. Frank Corotto

Campus

Dahlonega

Proposal Type

Poster

Subject Area

Biology

Location

Library Third Floor, Open Area

Start Date

2-4-2014 11:00 AM

End Date

2-4-2014 1:00 PM

Description/Abstract

Abstract: We attempted to answer whether or not planarians signal to conspecifics with the use of chemical alarm cues. To mimic predation, planarians were punctured 10 times with a pin and allowed to settle while the supposed alarm cue was released. The solution around the planarians was extracted and used as a test solution. Planarians were placed into straws that had been cut in half with test and control solutions at either end. This forced the planarians to decide between the two solutions. The results proved inconclusive as to the preference of the test solution over the control solution. In contrast, solutions prepared by grinding up planarians elicited avoidance, as previously shown by Wisenden and Millard (2001). These results provide a possible foundation to the hypothesis that the planarian’s avoidance of the ground-up planarian solutions is due to the presence of high concentrations of noxious chemicals rather than a true alarm cue.

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Apr 2nd, 11:00 AM Apr 2nd, 1:00 PM

Punctured Planarians and Alarm Cues for Conspecifics

Library Third Floor, Open Area

Abstract: We attempted to answer whether or not planarians signal to conspecifics with the use of chemical alarm cues. To mimic predation, planarians were punctured 10 times with a pin and allowed to settle while the supposed alarm cue was released. The solution around the planarians was extracted and used as a test solution. Planarians were placed into straws that had been cut in half with test and control solutions at either end. This forced the planarians to decide between the two solutions. The results proved inconclusive as to the preference of the test solution over the control solution. In contrast, solutions prepared by grinding up planarians elicited avoidance, as previously shown by Wisenden and Millard (2001). These results provide a possible foundation to the hypothesis that the planarian’s avoidance of the ground-up planarian solutions is due to the presence of high concentrations of noxious chemicals rather than a true alarm cue.