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原文連結
論文資訊
- 類型：已發表論文
- 日期：2018
摘要
In addition to their unusually long life cycle, periodical cicadas, Magicicada spp., provide an exceptional example of spatially synchronized life stage phenology in nature. Within regions (“broods”) spanning 50,000–500,000 square km, adults emerge synchronously every 13 or 17 years. While satiation of avian 捕食者s is believed to be a key component of the ability of these 族群s to reach high densities, it is not clear why 族群s at a single location remain entirely synchronized. We develop 非線性 Leslie matrix-type models of periodical cicadas that include predation-driven Allee effects and competition in addition to reproduction and survival. Using both analytical and numerical techniques, we demonstrate the observed presence of a single brood critically depends on the relationship between fecundit
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