REPEATED REVERSAL OF THE REPRODUCTIVE DIAPAUSE BY PHOTOPERIOD AND TEMPERATURE IN MALES OF THE GRASSHOPPER, OEDIPODA MINIATA
- 1 May 1979
- journal article
- research article
- Published by Wiley in Entomologia Experimentalis et Applicata
- Vol. 25 (3) , 219-226
- https://doi.org/10.1111/j.1570-7458.1979.tb02874.x
Abstract
Short day‐length and relatively low temperatures (LD 10.5: 13.5, 26° during illumination, 13° during darkness) induced mating behaviour and terminated aestival reproductive diapause in males of the grasshopper Oedipoda miniata. Long days and high temperatures (LD 16: 8, 38° during illumination, 27° during darkness) maintained sexual inactivity and diapause. Repeated changes of these conditions terminated, reinduced, reterminated and reinduced again diapause in the same males. An endogenous trend to complete diapause development and terminate diapause does not seem to exist in the males of this grasshopper; their reproductive diapause may be regarded as rather primitive.RÉSUMÉ: REVERSIBILITÉ REPETÉE DE LA DIAPAUSE REPRODUCTRICE DES ACRIDIENS MÂLES, OEDIPODA MINIATA, PAR LE PHOTOPÈRIODISME ET LA TEMPÉRATURELes jours courts et les températures relativement basses (J/N; 10,30/13,30; 26°/13°) induisent le comportement sexuel et achièvent la diapause reproductrice estivale des mâles de l'Acridien Oedipoda miniata. Les jours longs et les températures élevées (J/N; 16/8; 38°/27°) inhibent l'activité sexuelle et provoquent la diapause.Des changements répétés de ces conditions achèvent, réinduisent, achèvent à nouveau et réinduisent à nouveau la diapause chez les mêmes mâles. Une tendance endogène pour achever le déroulement de la diapause et terminer la diapause ne semble pas exister chez les mâles de cette espèce, leur diapause reproductrice peut être considérée comme plutôt primitive.This publication has 11 references indexed in Scilit:
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