Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Wittkuhn, Roy S.; McCaw, Lachlan; Wills, Allan; Robinson, R. M.; Andersen, Alan N.; Heurck, Paul Van; Farr, Janet D; Liddelow, Graeme; Cranfield, R J

doi:10.1016/j.foreco.2010.10.037

Cited by 46 publications

(33 citation statements)

References 65 publications

(92 reference statements)

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“…The remaining variation (21%) represented confounding effects of the environmental predictors and fire treatments, which were largely due to burn coverage variation among treatments. Our findings support those from similar forests elsewhere, that both site factors, irrespective of fire history (Bradstock et al 1997;Henderson and Keith 2002;Lewis et al 2012) and fire frequency have an important influence on plant composition (Henderson and Keith 2002;Spencer and Baxter 2006;Watson et al 2009;Penman et al 2011b;Wittkuhn et al 2011). Our results suggest that species such as Alphitonia excelsa, Lantana camara, Cyclophyllum coprosmoides and Psydrax odorata are more likely to proliferate in long-unburnt areas than in frequently burnt forests.…”

Section: Discussionsupporting

confidence: 88%

Resilience of a eucalypt forest woody understorey to long-term (34 - 55 years) repeated burning in subtropical Australia

Lewis

Debuse

2012

Int. J. Wildland Fire

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Abstract. We investigated the effects of annual burning since 1952, triennial burning since 1973, fire exclusion since 1946 and infrequent wildfire (one fire in 61 years) on woody understorey vegetation in a dry sclerophyll eucalypt forest, south-eastern Queensland, Australia. We determined the influence of these treatments, and other site variables (rainfall, understorey density, topsoil C : N ratio, tree basal area, distance to watercourse and burn coverage) on plant taxa density, richness and composition. The richness of woody understorey taxa 0-1 m in height was not affected by burning treatments, but richness of woody plants 1-7.5 m in height was lower in the annually burnt treatment than in the triennially burnt treatment from 1989 to 2007. Fire frequency and other site variables explained 34% of the variation in taxa composition (three taxon groups and 10 species), of which 33% of the explained variance was explained by fire treatment and 46% was explained by other site variables. Annual burning between 1974 and 1993 was associated with lower understorey densities mainly due to reduced densities of eucalypts 1-7.5 m in height. Triennial burning during the same period was associated with higher densities of eucalypts 0-7.5 m in height relative to the annually burnt and unburnt treatments. Most woody taxa persisted in the frequently burnt treatments through resprouting mechanisms (e.g. lignotuberous regeneration), and fire patchiness associated with low-intensity burning was also found to be important. Persistence of plants ,1 m tall demonstrates the resilience of woody taxa to repeated burning in this ecosystem, although they mainly exist in a suppressed growth state under annual burning.

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Section: Discussionsupporting

confidence: 88%

Resilience of a eucalypt forest woody understorey to long-term (34 - 55 years) repeated burning in subtropical Australia

Lewis

Debuse

2012

Int. J. Wildland Fire

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“…Por ejemplo, en los bosques tropicales, un solo incendio puede reducir la riqueza de las plantas leñosas de un tercio a dos tercios en función de la severidad (Cochrane, 2003). En cambio, en los bosques de coníferas, los incendios modifican tanto las dimensiones de la vegetación leñosa como la distribución de especies y dimensiones pero no necesariamente modifican su diversidad (Bond & Keeley, 2005;Kane et al, 2013;Wittkuhn et al, 2011). En este contexto, las características adaptativas de las plantas resultan de gran importancia ya que determinan el modo de recuperación post-incendio (Alanís et al, 2010;Bravo et al, 2012;Pausas, Bradstock, Keith, & Keeley, 2004).…”

Section: Interacción Espacial Del Arbolado Con La Variable Especieunclassified

“…In contrast, in the coniferous forests, fires modify both dimensions of woody vegetation and the distribution of species and size but fires not necessarily change their diversity (Bond & Keeley, 2005;Kane et al, 2013;Wittkuhn et al, 2011). In this context, the adaptive features of plants are very important because they determine the mode of postfire recovery (Alanís et al, 2010;Bravo et al, 2012;Pausas, Bradstock, Keith, & Keeley, 2004).…”

Section: Conclusionesmentioning

confidence: 99%

Efecto De La Severidad Del Fuego en Las Características De La Estructura Forestal en Rodales De Coníferas

Ávila-Flores¹,

Tagle²,

Jiménez-Pérez³

et al. 2014

Rev Cha Se Cie For y del Amb

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RESUMENE l objetivo del presente trabajo fue realizar un análisis exploratorio de la distribución espacial del arbolado en rodales mixtos de coníferas de la Sierra Madre Oriental, afectados por un incendio en el verano de 1998, con el fin de conocer el grado en que la severidad de un incendio modifica las características estructurales de los mismos. El área seleccionada comprendió tres rodales mixtos de coníferas con tres grados de severidad de incendio (bajo, medio y alto). Los patrones de distribución espacial del arbolado se analizaron a través de la función K de Ripley. Asimismo, se analizó la interacción espacial de los árboles en relación con sus dimensiones y especies mediante una función de correlación de marca k mm (r). Se observó que conforme la severidad del incendio aumenta, la distribución espacial del arbolado tiende a la agregación y a la formación de rodales dimensionalmente heterogéneos, mientras que la composición de especies no fue afectada. El fuego influyó en estos bosques como un promotor de la diversidad dimensional, a pesar de que la mezcla espacial de especies tuvo una tendencia a la homogeneidad. ABSTRACT

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“…In general, the effects appear to be clear and quick, with overall positive effects on forest biodiversity [9,10]. The immediate effects of fire on pyrophilous and saproxylic species, and also tree regeneration, are well documented.…”

Section: Introductionmentioning

confidence: 99%

What is the effect of prescribed burning in temperate and boreal forest on biodiversity, beyond tree regeneration, pyrophilous and saproxylic species? A systematic review protocol

et al. 2016

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Background: Forests set aside from productive forestry are often considered best conserved by non-intervention. However, biodiversity is often maintained in natural forests by a background level of disturbance, which, in some forests, takes the form of forest fires. Set-aside forests may therefore benefit from continuation of such disturbances, which, in forests under protection, must be managed anthropogenically. While the effects of prescribed burning on tree regeneration and on pyrophilous and/or saproxylic species in some regions are well known, effects on other organisms are less clear and/or consistent. It would be valuable to broaden the knowledge of how prescribed burning affects forest biodiversity, particularly because this practice is increasingly considered as a conservation management intervention. The primary aim of the proposed systematic review is to clarify how biodiversity is affected by prescribed burning in temperate and boreal forests. The ultimate purpose of the review is to investigate whether and how such prescribed burning may be useful as a means of conserving or restoring biodiversity, beyond that of pyrophilous and saproxylic species, in forest set-asides. Methods:The review will examine primary field studies of how prescribed burning affects biodiversity in boreal and temperate forests. We will consider studies made in such forests anywhere in the world, and will include forests both in protected areas and under commercial management. Non-intervention will be used as a comparator. Relevant outcomes will include a range of measures of biodiversity, including abundance and diversity, but not of pyrophilous and saproxylic species. Relevant studies will be taken from a recent systematic map of the evidence on biodiversity impacts of active management in forests set aside for conservation or restoration. Additional searches and a search update will be undertaken in a subset of databases from the systematic map, using a search string targeted to identify studies focused on prescribed burning interventions. Searches for additional literature will be made in the bibliographies of existing reviews of forest burning. Traditional academic literature and grey literature in English, French, Swedish and Finnish will be considered. Stakeholders who engage in prescribed burning will be asked to provide relevant grey literature.

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Variation in fire interval sequences has minimal effects on species richness and composition in fire-prone landscapes of south-west Western Australia

Cited by 46 publications

References 65 publications

Resilience of a eucalypt forest woody understorey to long-term (34 - 55 years) repeated burning in subtropical Australia

Resilience of a eucalypt forest woody understorey to long-term (34 - 55 years) repeated burning in subtropical Australia

Efecto De La Severidad Del Fuego en Las Características De La Estructura Forestal en Rodales De Coníferas

What is the effect of prescribed burning in temperate and boreal forest on biodiversity, beyond tree regeneration, pyrophilous and saproxylic species? A systematic review protocol

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