Effects of the availability of food and water on reproduction in the African army worm,Spodoptera exempta
作者:
A. GUNN,
A. G. GATEHOUSE,
期刊:
Physiological Entomology
(WILEY Available online 1985)
卷期:
Volume 10,
issue 1
页码: 53-63
ISSN:0307-6962
年代: 1985
DOI:10.1111/j.1365-3032.1985.tb00019.x
出版商: Blackwell Publishing Ltd
关键词: Spodoptera exempta;fecundity;longevity;larval feeding;adult feeding;migration
数据来源: WILEY
摘要:
ABSTRACT.FemaleSpodoptera exempta(Walker) (Lepidoptera: Noctuidae) moths require access to water to achieve hydration and maturation of their oocytes if they are to achieve their potential fecundity. For moths provided with water, the main factor limiting fecundity is moth weight. There is some evidence that sucrose in the adult diet can increase fecundity, particularly in lighter moths from a suboptimal larval feeding regime. Moths fed sucrose live longer, but complete oviposition at about the same age as moths provided only with water. Dietary protein and amino acids have no effect on fecundity or longevity. Although‐ multiple matings are frequent in the laboratory, femaleS.exemptaonly need to mate once to complete oviposition. Differences are apparent in the relative contribution of larval and adult feeding to reproduction in Noctuidae. Some species, likeS.exempta, require only water to achieve their reproductive potential, while others (e.g.Heliothisspp.) are dependent on sugars in the adult diet. FemaleS.exemptadenied access to water or food until night 3 after eclosion and then provided with water or sucrose, commence oviposition on night 4 and have fecundities comparable with those moths fed from emergenc
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