Long-Term Prophylactic Antibiotic Treatment : Effects on Survival, Immunocompetence and Reproduction Success of Parasemia plantaginis (Lepidoptera: Erebidae)

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Dickel , F , Freitak , D & Mappes , J 2016 , ' Long-Term Prophylactic Antibiotic Treatment : Effects on Survival, Immunocompetence and Reproduction Success of Parasemia plantaginis (Lepidoptera: Erebidae) ' , Journal of Insect Science , vol. 16 , no. 1 , 46 . https://doi.org/10.1093/jisesa/iew035

Title: Long-Term Prophylactic Antibiotic Treatment : Effects on Survival, Immunocompetence and Reproduction Success of Parasemia plantaginis (Lepidoptera: Erebidae)
Author: Dickel, Franziska; Freitak, Dalial; Mappes, Johanna
Contributor: University of Helsinki, Biosciences
Date: 2016-06-07
Language: eng
Number of pages: 7
Belongs to series: Journal of Insect Science
ISSN: 1536-2442
URI: http://hdl.handle.net/10138/208104
Abstract: Hundreds of insect species are nowadays reared under laboratory conditions. Rearing of insects always implicates the risk of diseases, among which microbial infections are the most frequent and difficult problems. Although there are effective prophylactic treatments, the side effects of applied antibiotics are not well understood. We examined the effect of prophylactic antibiotic treatment on the overwintering success of wood tiger moth (Parasemia plantaginis) larvae, and the postdiapause effect on their life-history traits. Four weeks before hibernation larvae were treated with a widely used antibiotic (fumagillin). We monitored moths' survival and life-history traits during the following 10 mo, and compared them to those of untreated control larvae. Prophylactic antibiotic treatment had no effect on survival but we show effects on some life-history traits by decreasing the developmental time of treated larvae. However, we also revealed relevant negative effects, as antibiotic treated individuals show a decreased number of laid eggs and also furthermore a suppressed immunocompetence. These results implicate, that a prophylactic medication can also lead to negative effects on life-history traits and reproductive success, which should be seriously taken in consideration when applying a prophylactic treatment to laboratory reared insect populations.
Subject: mass-rearing
antibiotic
reproduction
immunocompetence
trade-off
NOSEMA-CERANAE MICROSPORIDIA
WARNING SIGNAL EXPRESSION
EVOLUTIONARY ECOLOGY
INSECT IMMUNITY
ARCTIID MOTH
DIET
FUMAGILLIN
INFECTION
SYSTEM
MASS
1184 Genetics, developmental biology, physiology
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