AGE-RELATED FLIGHT AND REPRODUCTIVE-PERFORMANCE OF THE LIGHT BROWN APPLE MOTH, EPIPHYAS-POSTVITTANA

被引:0
|
作者
GU, H
DANTHANARAYANA, W
机构
[1] Department of Zoology, University of New England, Armidale, New South Wales
关键词
age; behaviour; Epiphyas postvittana; flight; Light brown apple moth; reproduction;
D O I
10.1111/j.1570-7458.1990.tb01319.x
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The relationship between flight activity, reproduction and age of Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae) was studied using tethered flight assays. Flights began on the day of emergence, peaking on days four and five in females and on day five in males, and lasted for nine to ten days. The development of flight capacity was well synchronised with the build‐up and decline of reproductive behaviours (calling, mating and oviposition). Flights of E. postvittana are thus inter‐reproductive, and there is no obvious pre‐oviposition period. Males were more active than females as 45–50% of male moths in comparison to 15–18% of female moths were capable of prolonged flights during the peak activity period. The results suggest that flights of E. postvittana are appetitive flights to a large extent, but it is suggested that some individuals may migrate, as there is no diapause in this species. The sexual dimorphism of flight capacity is discussed in relation to those of other tortricids and Lepidoptera in general. Flug und Fortpflanzungserfolg der hellbraunen Apfelmotte Epiphyas postvittana in Abhängigkei von Alter Die Beziehungen zwischen Flugaktivität, Fortpflanzung und Alter von Epiphyas postvittana (Walker) (Tortricidae) wurden untersucht mit Hilfe von angebudenen Flugapparaten. Flüge begannen am Tage des Schlüpfens, mit einen Maximum am vierten und fünften Tag bei Weibchen und am fünten Tag bei Männchen, und dauerten neun bis zehn Tage. Die Entwicklung des Flugvermögens war gut mit der Zu‐ und Abnahme des Fortpflanzungsverhaltens (Rufen, Kopulieren und Eiablage) korreliert. Flüge von E. postivittana finden also während der Fortpflanzungsperiode stall, und es gibt keine deutliche Periode vor der Eiablage. Männchen waren aktiver als Weibchen: 45–50% der Männchen verglichen mit 15–18% der Weibchen waren zu langen Flügen während der maximalen Aktivitätsperiode fähig. Das Ergebnis deutet an, das Flüge von E. postvittana im grossen Masse Appetenzflüge sind, doch es wird auf die Möglichkeit hingewiesen, dass einige Individuen wandern können, da die Art keine Diapause hat. Der Geschlechtsdimorphismus in der Flugaktivität wird diskutiert und verglichen mit dem anderer Tortriciden und der Lepidoptera allgemein. 1990 The Netherlands Entomological Society
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页码:109 / 115
页数:7
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