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Time in Ecology$
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Eric Post

Print publication date: 2019

Print ISBN-13: 9780691182353

Published to Princeton Scholarship Online: May 2019

DOI: 10.23943/princeton/9780691182353.001.0001

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Phenological Advance, Stasis, and Delay

Phenological Advance, Stasis, and Delay

(p.15) Chapter Two Phenological Advance, Stasis, and Delay
Time in Ecology

Eric Post

Princeton University Press

This chapter begins by distinguishing phenology from seasonality. Phenology is defined as the study of the occurrence of phenomena in relation to time. In contrast, seasonality refers to temporal variation in abiotic environmental conditions. The chapter then presents the central findings of four major reviews of phenological change over the past several decades. This overview shows that, first, in general, recent phenological trends in plants and animals tend overwhelmingly to be negative—that is, species across a diverse array of taxa appear to have tended toward earlier timing of springtime activity in concert with recent climatic warming. Second, however, it demonstrates that there has not been a universal tendency toward earlier timing of springtime phenological events with warming. Lastly, the overview reveals that there is, indeed, some evidence for a latitudinal trend in rates of phenological advance. The chapter also looks at phenological dynamics across taxa, latitude, and time.

Keywords:   phenology, seasonality, abiotic environmental conditions, phenological change, climatic warming, phenological advance, phenological dynamics, taxa, phenological trends

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