Presentation Details
| Behavioral and Developmental Impacts of Juvenile Chronic Unpredictable Mild Stress in the Black Soldier Fly. Narmeen Hashim, Elijah Persson-Gordon, Samuel Durosaro, Anastaysia Ivanchenko, Alex Glica, Syed Osman Hassan, Meghan Barrett. Department of Biology, Indiana University Indianapolis, indianapolis, indiana, USA |
Abstract
Few studies have looked at the impact of chronic mild unpredictable stress (CMUS) during insect development. We assessed the impact of larval CMUS on black soldier fly (BSF) behavior, growth, and survival. BSF larvae were assigned to a lower-stress (LS) or a CMUS group, with CMUS larvae receiving a random rotation of mild heat, cold, and disturbance stressors throughout only the larval period (CMUS-L) or the larval and pupal period (CMUS-P). We recorded larval mass daily and estimated survival to pupation and adulthood. We assessed larval tonic immobility, adult climbing, and open field performance. LS larvae showed significantly greater growth and increased survival to pupation and eclosion, though survival was higher in the CMUS-L conditions. CMUS-P conditions had poor survival, suggesting stressors were not mild during pupation. LS larvae froze longer in the TI test; LS adults outperformed CMUS in the climbing test and in the open field test. These data suggest that mild juvenile stress is important for growth, survival, and adult behavior and that insect farming should incorporate stress management.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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