voltinism


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Related to voltinism: multivoltine

voltinism

a form of polymorphism in insects where some enter DIAPAUSE and others do not.
References in periodicals archive ?
Changes in climate, mostly in warmer areas, bring about changes in insect distribution as a result of changes in insects' survival, procreation and voltinism rates.
Cummins, "Linkages between riparian forest composition and shredder voltinism," Archiv fur Hydrobiologie, vol.
A particularly apt example is asynchrony between diapause induction and the number of generations possible in a given season (voltinism; Bale and Hayward, 2010).
Monarch butterfly voltinism: effects of temperature constraints at different latitudes.
Charles JG, Allan DJ (2000) Development of the willow sawfly, Nematus oligospilus, at different temperatures, and an estimation of voltinism throughout New Zealand.
obscurus was the gomphid Lanthus vernalis, which showed mixed voltinism and lacked a clear growth pattern of its naiads, but was at least semivoltine in a cold unproductive stream in South Carolina (Folsom & Manuel 1983).
Oligochaete taxa were grouped, and voltinism was uncertain; thus production was estimated using a P/B value of 5.
Curiously, one could erroneously conclude that Bergmann's Rule applied if one only examined body size variation without regard to shifts in voltinism (i.e., in the transition zone, body size shifts from small, bivoltine individuals to large, univoltine individuals; [ILLUSTRATION FOR FIGURE 1 OMITTED]).
VOLTINISM A Revolving regularly B Art of tumbling C Breeding rhythm who am I?
In Odonata, increasing density among conspecifics may shorten life cycle [9], influence larval growth rates, and affect species voltinism [1].