Stage-specific quiescence as a mechanism for synchronising life cycles to seasons

William Gurney, P.H. Crowley, R.M. Nisbet

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Seasonal dormancy plays a critical role in synchronizing life cycles to seasons. In previous work, however, we have shown that quiescence-the readily reversible cessation of development in direct response to contemporaneous environmental conditions-acting alone and independent of stage development cannot yield synchronization. Here we demonstrate how stage-specific quiescence(SSQ), with stage dependence based solely on developmental thresholds that differ among stages, is generally sufficient to synchronize semelparous life cycles to seasons. We present an example consistent with this mechanism, compare SSQ with mechanisms based on diapause, and propose some testable hypotheses. Finally, we indicate additional empirical and theoretical work needed to evaluate the applicability of SSQ and its close relatives to a potentially wide range of organisms.
Original languageEnglish
Pages (from-to)319-343
Number of pages25
JournalTheoretical Population Biology
Volume46
Issue number3
DOIs
Publication statusPublished - Dec 1994

Keywords

  • synchronizing life cycles
  • seasonal life cycles
  • stage-specific quiescence

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