The role of hormones

2018 ◽  
Author(s):  
H. Frederik Nijhout ◽  
Emily Laub
Keyword(s):  
Phenotypic Plasticity ◽  
Social Behavior ◽  
Parental Care ◽  
Juvenile Hormone ◽  
Reproductive Behavior ◽  
Hormonal Control ◽  
Plastic Trait

Many behaviors of insects are stimulated, modified, or modulated by hormones. The principal hormones involved are the same as the ones that control moulting, metamorphosis, and other aspects of development, principally ecdysone and juvenile hormone. In addition, a small handful of neurosecretory hormones are involved in the control of specific behaviors. Because behavior is a plastic trait, this chapter begins by outlining the biology and hormonal control of phenotypic plasticity in insects, and how the hormonal control of behavior fits in with other aspects of the control of phenotypic plasticity. The rest of the chapter is organized around the diversity of behaviors that are known to be controlled by or affected by hormones. These include eclosion and moulting behavior, the synthesis and release of pheromones, migration, parental care, dominance, reproductive behavior, and social behavior.

scholarly journals Exploring the role of juvenile hormone and vitellogenin in reproduction and social behavior in bumble bees

2014 ◽  
Vol 14 (1) ◽  
pp. 45 ◽  
Author(s):  
Etya Amsalem ◽  
Osnat Malka ◽  
Christina Grozinger ◽  
Abraham Hefetz
Keyword(s):  
Social Behavior ◽  
Juvenile Hormone ◽  
Bumble Bees

scholarly journals Juvenile hormone pathway in honey bee larvae: A source of possible signal molecules for the reproductive behavior of Varroa destructor

2020 ◽  
Author(s):  
Cristian M. Aurori ◽  
Alexandru‐Ioan Giurgiu ◽  
Benjamin H. Conlon ◽  
Chedly Kastally ◽  
Daniel S. Dezmirean ◽  
...  
Keyword(s):  
Juvenile Hormone ◽  
Honey Bee ◽  
Reproductive Behavior ◽  
Varroa Destructor ◽  
Signal Molecules ◽  
Honey Bee Larvae

scholarly journals Role of juvenile hormone and allatotropin on nutrient allocation, ovarian development and survivorship in mosquitoes

2007 ◽  
Vol 53 (3) ◽  
pp. 230-234 ◽  
Author(s):  
Salvador Hernández-Martínez ◽  
Jaime G. Mayoral ◽  
Yiping Li ◽  
Fernando G. Noriega
Keyword(s):  
Juvenile Hormone ◽  
Ovarian Development ◽  
Nutrient Allocation

Field Dependence and Self-Disclosure

1973 ◽  
Vol 36 (3) ◽  
pp. 735-738 ◽  
Author(s):  
Joaquin F. Sousa-Poza ◽  
Robert Rohrberg ◽  
Ernest Shulman
Keyword(s):  
Social Behavior ◽  
Field Dependence ◽  
The Self ◽  
Social Stimuli ◽  
Self Disclosure ◽  
Field Independent ◽  
The Social ◽  
Field Dependent ◽  
Personality Theories

Some characteristics of the social behavior of field-dependents as well as their superior recognition of ambiguous social stimuli led to the hypothesis that they would show greater self-disclosure than field-independents. This hypothesis was tested by administering the 60-item Jourard Self-disclosure Questionnaire (JSDQ) to 13 field-dependent and 13 field-independent Ss. In terms of total self-disclosure scores, field-dependents showed significantly (.025) higher levels than field-independents. Results are discussed in light of personality theories which emphasize the role of self-conceptual transactions in the development of the self.

Hormonal Control of Fish Reproductive Behavior: Brain–Gonadal Steroid Interactions

1982 ◽  
Vol 39 (1) ◽  
pp. 36-47 ◽  
Author(s):  
L. S. Demski ◽  
P. J. Hornby
Keyword(s):  
Reproductive Behavior ◽  
Sex Steroids ◽  
Anterior Commissure ◽  
Direct Action ◽  
Hormonal Control ◽  
Sufficient Evidence ◽  
Brain Areas ◽  
Behavioral Systems ◽  
Goldfish Carassius Auratus ◽  
Tentative Model

A number of hormones are known to influence reproductive behavior in teleosts. The best studied in this regard are the sex steroids estradiol and testosterone. Sufficient evidence is available to permit the outlining of possible modes of action of these hormones on mechanisms controlling reproductive responses in fishes. Autoradiographic studies using tritium-labeled steroids have revealed several brain areas with neurons that concentrate testosterone and estradiol in both males and females. An area near the anterior commissure (preoptic region and parts of the area ventralis telencephali) is of primary interest for behavioral systems. Electrophysiological experiments in goldfish (Carassius auratus) have demonstrated that both hormones strongly influence olfactory mechanisms. These effects may be mediated by steroid feedback on brain areas involved in centrifugal control of the olfactory bulbs. The neurological substrates for several behaviors which are thought to be androgen dependent have been studied using classical neurobehavioral methods. These include: spawning and sperm release in goldfish and sunfish (Lepomis sp.) and courtship and nestbuilding in sunfish. As of yet, a direct action of sex steroids on these systems has not been demonstrated; however, they all relate to the steroid-concentrating area mentioned above. Some of the systems are incorporated into a tentative model of the neural–hormonal mechanisms controlling reproductive behavior in male goldfish.Key words: reproductive behavior, fishes, brain, hormones, sex steroids, olfaction

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