ISSN:
1440-1703
Keywords:
adult stage
;
egg size
;
mature eggs
;
oviposition time
;
skimmers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Females of three skimmers,Orthetrum japonicum, O. albistylum andO. triangulare, were captured in forests and paddy fields. They were dissected and examined for the number of submature and mature eggs.Orthetrum japonicum andO. albistylum continuously developed eggs throughout their reproductive period. The volume of mature eggs inO. albistylum was the smallest among the three species. The number of mature eggs in ovaries decreased from morning to afternoon, suggesting that all of them oviposited around noon. The number of mature eggs laid byO. japonicum, O. albistylum andO. triangulare was estimated at about 400, 800 and 〉2000 a day, respectively.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02348613
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