Snow tussocks, chaos, and the evolution of mast seeding

The American Naturalist
Mark ReesOttar N Bjørnstad

Abstract

One hitherto intractable problem in studying mast seeding (synchronous intermittent heavy flowering by a population of perennial plants) is determining the relative roles of weather, plant reserves, and evolutionary selective pressures such as predator satiation. We parameterize a mechanistic resource-based model for mast seeding in Chionochloa pallens (Poaceae) using a long-term individually structured data set. Each plant's energy reserves were reconstructed using annual inputs (growing degree days), outputs (flowering), and a novel regression technique. This allowed the estimation of the parameters that control internal plant resource dynamics, and thereby allowed different models for masting to be tested against each other. Models based only on plant size, season degree days, and/or climatic cues (warm January temperatures) fail to reproduce the pattern of autocovariation in individual flowering and the high levels of flowering synchrony seen in the field. This shows that resource-matching or simple cue-based models cannot account for this example of mast seeding. In contrast, the resource-based model pulsed by a simple climate cue accurately describes both individual-level and population-level aspects of the data. The fitt...Continue Reading

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Citations

Jun 12, 2013·Journal of Theoretical Biology·Yuuya Tachiki, Yoh Iwasa
May 26, 2012·Ecology·Andrew J TanentzapDavid A Coomes
Jan 28, 2014·The American Naturalist·Megan A GreischarOttar N Bjørnstad
Aug 5, 2015·Ecology·Ian S PearseMario B Pesendorfer
Nov 15, 2011·Theoretical Population Biology·Yuuya Tachiki, Yoh Iwasa
May 2, 2009·Journal of Theoretical Biology·Danielle LylesPatrick H Brown
Jan 3, 2016·Chaos·Awadhesh Prasad, Kenshi Sakai
Aug 15, 2012·The New Phytologist·Anna SalaElizabeth E Crone
Jun 4, 2014·Annals of the New York Academy of Sciences·Elizabeth E Crone, Joshua M Rapp
Feb 24, 2015·Journal of Theoretical Biology·Danielle LylesAlan Hastings
Aug 2, 2016·The New Phytologist·Ian S PearseDave Kelly
Jan 5, 2017·Scientific Reports·Awadhesh PrasadYoshinobu Hoshino
Mar 27, 2018·The New Phytologist·Michał BogdziewiczElizabeth E Crone
Nov 3, 2017·Proceedings. Biological Sciences·Michał BogdziewiczJosep Maria Espelta
Oct 10, 2015·American Journal of Botany·Susan E Meyer, Burton K Pendleton
Oct 25, 2002·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·H Charles J Godfray, Mark Rees
Oct 1, 2019·The New Phytologist·Éliane SchermerSamuel Venner
Jan 22, 2020·Annals of Botany·Dave KellyPaula E Jameson
Apr 25, 2020·The New Phytologist·Michał BogdziewiczJosep Penuelas
Sep 2, 2017·Ecology and Evolution·Yongjie LiuZhenqing Li
Oct 17, 2018·Ecology Letters·Éliane SchermerSamuel Venner
Feb 12, 2020·Nature Plants·Michał BogdziewiczAndrew Hacket-Pain
Feb 1, 2012·Functional Plant Biology : FPB·Matthew H TurnbullDave Kelly
Sep 28, 2020·Ecology Letters·Michał BogdziewiczRaul Bonal
Dec 10, 2020·The New Phytologist·Dave Kelly
Feb 20, 2021·Global Change Biology·Michał BogdziewiczAndrew J Tanentzap
Jul 11, 2020·Current Biology : CB·Michał BogdziewiczAndrew Hacket-Pain

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