Effects of drought and fire on resprouting capacity of 52 temperate Australian perennial native grasses

The New Phytologist
Nicholas A MooreJohn W Morgan

Abstract

It remains uncertain how perennial grasses with different photosynthetic pathways respond to fire, and how this response varies with stress at the time of burning. Resprouting after fire was examined in relation to experimentally manipulated pre-fire watering frequencies. We asked the following questions: are there response differences to fire between C3 and C4 grasses? And, how does post-fire resprouting vary with pre-fire drought stress? Fifty-two perennial Australian grasses (37 genera, 13 tribes) were studied. Three watering frequencies were applied to simulate increasing drought. Pre-fire tiller number, tiller density, specific leaf area and leaf dry matter content were measured as explanatory variables to assess response. Most species (90%) and individuals (79%) resprouted following experimental burning. C4 grasses had higher probabilities of surviving fire relative to C3 grasses. Responses were not related to phylogeny or tribe. High leaf dry matter content reduced the probability of dying, but also reduced the re-emergence of tillers. Post-fire tiller number increased with increasing drought, regardless of photosynthetic type, suggesting that drought plays a role in the ability of grasses to recover after fire. This has...Continue Reading

References

Aug 16, 2005·Proceedings of the National Academy of Sciences of the United States of America·Caroline A E Strömberg
May 17, 2006·Trends in Ecology & Evolution·William J Bond, Jon E Keeley
Jun 17, 2008·Annals of Botany·Oula Ghannoum
Apr 9, 2009·PloS One·Meg A KrawchukKatharine Hayhoe
Dec 17, 2009·The New Phytologist·Samuel H TaylorColin P Osborne
Sep 10, 2010·Proceedings. Biological Sciences·Alexandre AntonelliH Peter Linder
Feb 10, 2011·Ecology·Paul R GagnonKyle E Harms
Sep 12, 2014·Systematic Biology·Wayne P Maddison, Richard G FitzJohn
Nov 22, 2014·Frontiers in Plant Science·David M J S BowmanLynda D Prior
Feb 16, 2016·The Journal of Ecology·Kimberley J SimpsonColin P Osborne
Jan 8, 2017·Global Change Biology·James S CamacPeter A Vesk
Dec 13, 2017·Biological Reviews of the Cambridge Philosophical Society·H P LinderDavid M Richardson
Oct 3, 2018·Ecology and Evolution·Berangere A LeysBoris Vannière
Nov 1, 2002·Functional Plant Biology : FPB·Oula GhannoumJann P Conroy

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Citations

Mar 18, 2021·The New Phytologist·Nicola J Day
Nov 7, 2020·The New Phytologist·Kimberley J SimpsonColin P Osborne
Oct 2, 2021·Scientific Data·Daniel FalsterKasia Ziemińska

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