Diapause in Scelio chortoicetes Frogg
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چکیده
منابع مشابه
Behavioural phase polyphenism in the Australian plague locust (Chortoicetes terminifera).
Swarming and the expression of phase polyphenism are defining characteristics of locust species. Increases in local population density mediate morphological, physiological and behavioural changes within individuals, which correlate with mass marching of juveniles in migratory bands and flying swarms of adults. The Australian plague locust (Chortoicetes terminifera) regularly forms migratory ban...
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Normally the egg of Ephippiger cruciger is subject to diapause when the embryo is almost fully developed. Most eggs die or develop erratically and slowly when chilled for some time at earlier non-diapausing stages. However, after 2 or 3 months' cooling at a stage just before catatrepsis a few eggs developed more rapidly than usual and hatched without intervention of a diapause, at a temperature...
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Factors which induce diapause in insects are, in most cases, only effective when applied to the individuals which are destined to cease development (Lees, 1955), although in many examples—for instance the vine leafroller, Polychrosis botrana (Komarova, 1949)—the sensitive stage and the resulting diapause are separated by several intervening instars. However, there are a few insects known in whi...
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BACKGROUND When a competent blastocyst stage embryo finds itself in an unreceptive uterus, it delays development. In around one hundred species representing various orders, this delay is known to be reversible, but this phenomenon - termed embryonic diapause (ED) - is not considered a general characteristic of all mammals. PRESENTATION OF THE HYPOTHESIS Recently, however, we demonstrated that...
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ژورنال
عنوان ژورنال: Anzeiger für Schädlingskunde
سال: 1948
ISSN: 1612-4758,1612-4766
DOI: 10.1007/bf02340794