Biparental behavior in the burying beetle Nicrophorus orbicollis : a role for dopamine?

Current Zoology
S Carmen PanaitofKenneth J Renner

Abstract

Burying beetles Nicrophorus orbicollis exhibit facultative biparental care of young. To reproduce, a male-female burying beetle pair bury and prepare a small vertebrate carcass as food for its altricial young. During a breeding bout, male and female behavior changes synchronously at appropriate times and is coordinated to provide effective care for offspring. Although the ecological and evolutionary factors that shape this remarkable reproductive plasticity are well characterized, the neuromodulation of parental behavior is poorly understood. Juvenile hormone levels rise dramatically at the time beetle parents accept and feed larvae, remain highly elevated during the stages of most active care and fall abruptly when care is terminated. However, hormonal fluctuations alone cannot account for this elaborate control of reproduction. The biogenic amines octopamine (OA), dopamine (DA), and serotonin (5-HT) mediate a diversity of insect reproductive and social behaviors. In this study, we measured whole brain monoamine levels in individual male and female burying beetles and compared OA, DA, and 5-HT profiles between breeding (parental) and nonbreeding, unmated beetles. Remarkably, after 24 h of care, when parental feeding rates begi...Continue Reading

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Citations

Oct 27, 2017·Frontiers in Systems Neuroscience·J Frances KamhiJames F A Traniello
Apr 16, 2019·Frontiers in Physiology·Zbigniew AdamskiGrzegorz Rosiński
Jun 1, 2016·Current Zoology·John G SwallowUNKNOWN Guest Editors

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Methods Mentioned

BETA
dissection

Software Mentioned

R
R Core Team
SYSTAT

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