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Presence-only data are currently insufficient for broad-scale phenological analyses for most species of temperate butterflies
  • Elise Larsen,
  • Vaughn Shirey
Elise Larsen
Georgetown University
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Vaughn Shirey
Georgetown University
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Abstract

Large occurrence datasets provide a sizable resource for ecological analyses, but have substantial limitations. Phenological analyses in Fric et al. (2020) are flawed due to insufficient data and improper analysis. Our reanalysis of 22 univoltine species with sufficient data (from 100 original species) found substantive differences in macroscale phenological patterns.