Voltinism

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Voltinism is a term used in biology to indicate the number of broods or generations of an organisms in a year. The term is particularly in use in sericulture, where silkworm varieties vary in their voltinism.

• Univoltine - (adjective) referring to organisms having one brood per year
• Bivoltine - (adjective) referring to organisms having two broods per year
• Multivoltine - (adjective) referring to organisms having more than two broods per year

Evolution

The number of breeding cycles in a year is under genetic control in many species and they are evolved in response to the environment. Many phytophagous species which are dependent on seasonal plant resources are univoltine. These species also have the ability to diapause.

References

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Last updated on Thursday July 26, 2007 at 19:32:04 PDT (GMT -0700)
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