A Model for Seasonal Synchrony in Stream Mayflies
作者： J. Denis Newbold , Bernard W. Sweeney , Robin L. Vannote
DOI: 10.2307/1467261
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摘要: Many mayfly species have synchronous univoltine life histories over broad geographic ranges, but the life-history adaptations underlying their seasonality remain unidentified. We investigated whether simple in response of development rate to temperature might account for observed phenology adult emergence and 1- 2-year eight studied Piedmont streams eastern North America between 34°N 50°N latitude. present a model consisting two sequential stages. Development each stage is linear function streamwater above lower threshold but, first stage, developmental quiescence occurs whenever maximal exceeded. The five parameters are assumed not vary with Using daily field temperatures, simulated several successive generations beginning from an arbitrary day year. With fitted data, could reproduce both t...
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