Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia

The effects of recent fire frequency and time-since-fire on plant community composition and species abundance in open-forest and woodland vegetation in Girraween National Park, south-east Queensland, Australia, were examined. Cover-abundance data were collected for shrub and vine species in at least...

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Main Authors: Watson, P., Wardell-Johnson, Grant
Format: Journal Article
Published: Blackwell Publishing Asia 2004
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/24922
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author Watson, P.
Wardell-Johnson, Grant
author_facet Watson, P.
Wardell-Johnson, Grant
author_sort Watson, P.
building Curtin Institutional Repository
collection Online Access
description The effects of recent fire frequency and time-since-fire on plant community composition and species abundance in open-forest and woodland vegetation in Girraween National Park, south-east Queensland, Australia, were examined. Cover-abundance data were collected for shrub and vine species in at least 10 400-m(2) plots in each of four study areas. Study areas were within one community type and had burnt most recently either 4 or 9 years previously. Variations in fire frequency allowed us to compare areas that had burnt at least three times in the previous 25 years with less frequently burnt areas, and also woodlands that had experienced a 28-year interfire interval with more frequently burnt areas. Although species richness did not differ significantly with either time-since-fire or fire frequency, both these factors affected community composition, fire frequency being the more powerful. Moisture availability also influenced floristics. Of the 67 species found in five or more plots, six were significantly associated with time-since-fire, whereas 11 showed a significant difference between more and less frequently burnt plots in each of the two fire-frequency variables. Most species, however, did not vary in cover-abundance with the fire regime parameters examined. Even those species that showed a marked drop in cover-abundance when exposed to a particular fire regime generally maintained some presence in the community. Five species with the capacity to resprout after fire were considered potentially at risk of local extinction under regimes of frequent fire, whereas two species were relatively uncommon in long-unburnt areas. Variable fire regimes, which include interfire intervals of at least 15 years, could be necessary for the continuity of all species in the community.
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spelling curtin-20.500.11937-249222017-09-13T15:52:04Z Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia Watson, P. Wardell-Johnson, Grant REGENERATION BANKSIA-SERRATA multidimensional scaling ordination resprouter shrub HETEROGENEITY SYDNEY REGION PLANT-SPECIES COMPOSITION cluster analysis plant community FLORISTIC COMPOSITION species composition ISOPOGON-ANEMONIFOLIUS conservation INTENSITY interfire interval SANDSTONE COMMUNITIES COASTAL HEATHLAND granite The effects of recent fire frequency and time-since-fire on plant community composition and species abundance in open-forest and woodland vegetation in Girraween National Park, south-east Queensland, Australia, were examined. Cover-abundance data were collected for shrub and vine species in at least 10 400-m(2) plots in each of four study areas. Study areas were within one community type and had burnt most recently either 4 or 9 years previously. Variations in fire frequency allowed us to compare areas that had burnt at least three times in the previous 25 years with less frequently burnt areas, and also woodlands that had experienced a 28-year interfire interval with more frequently burnt areas. Although species richness did not differ significantly with either time-since-fire or fire frequency, both these factors affected community composition, fire frequency being the more powerful. Moisture availability also influenced floristics. Of the 67 species found in five or more plots, six were significantly associated with time-since-fire, whereas 11 showed a significant difference between more and less frequently burnt plots in each of the two fire-frequency variables. Most species, however, did not vary in cover-abundance with the fire regime parameters examined. Even those species that showed a marked drop in cover-abundance when exposed to a particular fire regime generally maintained some presence in the community. Five species with the capacity to resprout after fire were considered potentially at risk of local extinction under regimes of frequent fire, whereas two species were relatively uncommon in long-unburnt areas. Variable fire regimes, which include interfire intervals of at least 15 years, could be necessary for the continuity of all species in the community. 2004 Journal Article http://hdl.handle.net/20.500.11937/24922 10.1111/j.1442-9993.2004.01346.x Blackwell Publishing Asia restricted
spellingShingle REGENERATION
BANKSIA-SERRATA
multidimensional scaling ordination
resprouter
shrub
HETEROGENEITY
SYDNEY REGION
PLANT-SPECIES COMPOSITION
cluster analysis
plant community
FLORISTIC COMPOSITION
species composition
ISOPOGON-ANEMONIFOLIUS
conservation
INTENSITY
interfire interval
SANDSTONE COMMUNITIES
COASTAL HEATHLAND
granite
Watson, P.
Wardell-Johnson, Grant
Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title_full Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title_fullStr Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title_full_unstemmed Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title_short Fire frequency and time-since-fire effects on the open-forest and woodland flora of Girraween National Park, south-east Queensland, Australia
title_sort fire frequency and time-since-fire effects on the open-forest and woodland flora of girraween national park, south-east queensland, australia
topic REGENERATION
BANKSIA-SERRATA
multidimensional scaling ordination
resprouter
shrub
HETEROGENEITY
SYDNEY REGION
PLANT-SPECIES COMPOSITION
cluster analysis
plant community
FLORISTIC COMPOSITION
species composition
ISOPOGON-ANEMONIFOLIUS
conservation
INTENSITY
interfire interval
SANDSTONE COMMUNITIES
COASTAL HEATHLAND
granite
url http://hdl.handle.net/20.500.11937/24922