Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous Abstract[On arthropod defense substances. XXXI. Comparative chemical studies of substances contained in the pygidial defense bullae of carabids]    Next AbstractOvercompensation of herbivore reproduction through hyper-suppression of plant defenses in response to competition »

J Endocrinol


Title:Sexual inhibition in a prosimian primate: a pheromone-like effect
Author(s):Schilling A; Perret M; Predine J;
Address:
Journal Title:J Endocrinol
Year:1984
Volume:102
Issue:2
Page Number:143 - 151
DOI: 10.1677/joe.0.1020143
ISSN/ISBN:0022-0795 (Print) 0022-0795 (Linking)
Abstract:"The effect of dominant urine odour on plasma levels of testosterone and cortisol was studied in the prosimian primate Microcebus murinus. This species shows a photoperiod-dependent cycle of sexual activity. In particular, mean testosterone levels vary from 15 nmol/l during the annual rest period to 245 nmol/l during the breeding season. When males of this solitary and territorial species are artificially grouped in captivity, they develop a social hierarchy which in turn results in physiological disorders, especially of reproductive function, in non-dominant individuals. Since olfactory behaviours appear to be important in the establishment and maintenance of the social structure, we have tested the effects of dominant odorant signals upon the sexual inhibition observed in male conspecifics. A preliminary experiment showed that a decrease in plasma testosterone concentrations could be induced by dominant scent marks. Furthermore, dominant urine odour alone was found to be sufficient to induce this modification. Plasma cortisol levels also increased in these animals. Conversely, when sexually inhibited males were olfactorily isolated from dominant urine odour, testosterone and cortisol concentrations returned to a normal seasonal level. These effects were observed even in males which had had no previous contact with the dominant urine donor. It is inferred from these results that a pheromone-like process could lead to sexual inhibition in male Microcebus murinus exposed to an odorant urinary signal produced by a dominant individual. Nevertheless, the endocrine response seems to vary according to the seasonal period of the sexual activity cycle which suggests that the social effect described is modulated by other external (e.g. photoperiodic) or internal (e.g. reproductive physiology) factors"
Keywords:"Animals;Animals Female Hydrocortisone/blood Lemuridae/*physiology Male Pheromones/*physiology Seasons Sex Attractants/*physiology *Sexual Behavior, Animal Social Behavior Testosterone/blood;"
Notes:"MedlineSchilling, A Perret, M Predine, J eng England 1984/08/01 J Endocrinol. 1984 Aug; 102(2):143-51. doi: 10.1677/joe.0.1020143"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 27-12-2024